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<label for=m-endocsv27userexamplesgeneric-reference-check><a href=/en/docs/v2.7/user/examples/generic-reference/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userexamplesgeneric-reference><span>Generic Reference</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userexamplesgeneric-service-li><input type=checkbox id=m-endocsv27userexamplesgeneric-service-check>
<label for=m-endocsv27userexamplesgeneric-service-check><a href=/en/docs/v2.7/user/examples/generic-service/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userexamplesgeneric-service><span>Generic Service</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userexamplesecho-service-li><input type=checkbox id=m-endocsv27userexamplesecho-service-check>
<label for=m-endocsv27userexamplesecho-service-check><a href=/en/docs/v2.7/user/examples/echo-service/ title="Echo Testing Service" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userexamplesecho-service><span>Echo Service</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userexamplescontext-li><input type=checkbox id=m-endocsv27userexamplescontext-check>
<label for=m-endocsv27userexamplescontext-check><a href=/en/docs/v2.7/user/examples/context/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userexamplescontext><span>Context</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userexamplesattachment-li><input type=checkbox id=m-endocsv27userexamplesattachment-check>
<label for=m-endocsv27userexamplesattachment-check><a href=/en/docs/v2.7/user/examples/attachment/ title="Implicit parameters" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userexamplesattachment><span>Attachment</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userexamplesasync-call-li><input type=checkbox id=m-endocsv27userexamplesasync-call-check>
<label for=m-endocsv27userexamplesasync-call-check><a href=/en/docs/v2.7/user/examples/async-call/ title="Asynchronous Call" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userexamplesasync-call><span>Async Call</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userexamplesasync-execute-on-provider-li><input type=checkbox id=m-endocsv27userexamplesasync-execute-on-provider-check>
<label for=m-endocsv27userexamplesasync-execute-on-provider-check><a href=/en/docs/v2.7/user/examples/async-execute-on-provider/ title="Asynchronous Execution" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userexamplesasync-execute-on-provider><span>Async Execution</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userexampleslocal-call-li><input type=checkbox id=m-endocsv27userexampleslocal-call-check>
<label for=m-endocsv27userexampleslocal-call-check><a href=/en/docs/v2.7/user/examples/local-call/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userexampleslocal-call><span>Local Call</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userexamplescallback-parameter-li><input type=checkbox id=m-endocsv27userexamplescallback-parameter-check>
<label for=m-endocsv27userexamplescallback-parameter-check><a href=/en/docs/v2.7/user/examples/callback-parameter/ title="Callback parameter" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userexamplescallback-parameter><span>Callback</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userexamplesevents-notify-li><input type=checkbox id=m-endocsv27userexamplesevents-notify-check>
<label for=m-endocsv27userexamplesevents-notify-check><a href=/en/docs/v2.7/user/examples/events-notify/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userexamplesevents-notify><span>Event Notification</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userexampleslocal-stub-li><input type=checkbox id=m-endocsv27userexampleslocal-stub-check>
<label for=m-endocsv27userexampleslocal-stub-check><a href=/en/docs/v2.7/user/examples/local-stub/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userexampleslocal-stub><span>Local Stub</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userexampleslocal-mock-li><input type=checkbox id=m-endocsv27userexampleslocal-mock-check>
<label for=m-endocsv27userexampleslocal-mock-check><a href=/en/docs/v2.7/user/examples/local-mock/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userexampleslocal-mock><span>Local Mock</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userexamplesdelay-publish-li><input type=checkbox id=m-endocsv27userexamplesdelay-publish-check>
<label for=m-endocsv27userexamplesdelay-publish-check><a href=/en/docs/v2.7/user/examples/delay-publish/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userexamplesdelay-publish><span>Delay Publish</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userexamplesconcurrency-control-li><input type=checkbox id=m-endocsv27userexamplesconcurrency-control-check>
<label for=m-endocsv27userexamplesconcurrency-control-check><a href=/en/docs/v2.7/user/examples/concurrency-control/ title="Concurrency Control" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userexamplesconcurrency-control><span>Concurrency</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userexamplesconfig-connections-li><input type=checkbox id=m-endocsv27userexamplesconfig-connections-check>
<label for=m-endocsv27userexamplesconfig-connections-check><a href=/en/docs/v2.7/user/examples/config-connections/ title="Config connections" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userexamplesconfig-connections><span>Connection</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userexampleslazy-connect-li><input type=checkbox id=m-endocsv27userexampleslazy-connect-check>
<label for=m-endocsv27userexampleslazy-connect-check><a href=/en/docs/v2.7/user/examples/lazy-connect/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userexampleslazy-connect><span>Lazy Connect</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userexamplesstickiness-li><input type=checkbox id=m-endocsv27userexamplesstickiness-check>
<label for=m-endocsv27userexamplesstickiness-check><a href=/en/docs/v2.7/user/examples/stickiness/ title="Stickiness Connection" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userexamplesstickiness><span>Stickiness</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userexamplestoken-authorization-li><input type=checkbox id=m-endocsv27userexamplestoken-authorization-check>
<label for=m-endocsv27userexamplestoken-authorization-check><a href=/en/docs/v2.7/user/examples/token-authorization/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userexamplestoken-authorization><span>Token Authorization</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userexamplesrouting-rule-li><input type=checkbox id=m-endocsv27userexamplesrouting-rule-check>
<label for=m-endocsv27userexamplesrouting-rule-check><a href=/en/docs/v2.7/user/examples/routing-rule/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userexamplesrouting-rule><span>Routing Rule</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userexamplesconfig-rule-li><input type=checkbox id=m-endocsv27userexamplesconfig-rule-check>
<label for=m-endocsv27userexamplesconfig-rule-check><a href=/en/docs/v2.7/user/examples/config-rule/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userexamplesconfig-rule><span>Configure rule</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userexamplesservice-downgrade-li><input type=checkbox id=m-endocsv27userexamplesservice-downgrade-check>
<label for=m-endocsv27userexamplesservice-downgrade-check><a href=/en/docs/v2.7/user/examples/service-downgrade/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userexamplesservice-downgrade><span>Service Downgrade</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userexamplesgraceful-shutdown-li><input type=checkbox id=m-endocsv27userexamplesgraceful-shutdown-check>
<label for=m-endocsv27userexamplesgraceful-shutdown-check><a href=/en/docs/v2.7/user/examples/graceful-shutdown/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userexamplesgraceful-shutdown><span>Graceful Shutdown</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userexampleshostname-binding-li><input type=checkbox id=m-endocsv27userexampleshostname-binding-check>
<label for=m-endocsv27userexampleshostname-binding-check><a href=/en/docs/v2.7/user/examples/hostname-binding/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userexampleshostname-binding><span>Hostname Binding</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userexampleslogger-strategy-li><input type=checkbox id=m-endocsv27userexampleslogger-strategy-check>
<label for=m-endocsv27userexampleslogger-strategy-check><a href=/en/docs/v2.7/user/examples/logger-strategy/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userexampleslogger-strategy><span>Logger Strategy</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userexamplesaccesslog-li><input type=checkbox id=m-endocsv27userexamplesaccesslog-check>
<label for=m-endocsv27userexamplesaccesslog-check><a href=/en/docs/v2.7/user/examples/accesslog/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userexamplesaccesslog><span>Access Log</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userexamplesservice-container-li><input type=checkbox id=m-endocsv27userexamplesservice-container-check>
<label for=m-endocsv27userexamplesservice-container-check><a href=/en/docs/v2.7/user/examples/service-container/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userexamplesservice-container><span>Service Container</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userexamplesreference-config-cache-li><input type=checkbox id=m-endocsv27userexamplesreference-config-cache-check>
<label for=m-endocsv27userexamplesreference-config-cache-check><a href=/en/docs/v2.7/user/examples/reference-config-cache/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userexamplesreference-config-cache><span>ReferenceConfig Cache</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userexamplesregistry-only-li><input type=checkbox id=m-endocsv27userexamplesregistry-only-check>
<label for=m-endocsv27userexamplesregistry-only-check><a href=/en/docs/v2.7/user/examples/registry-only/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userexamplesregistry-only><span>Register Only</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userexamplesdistributed-transaction-li><input type=checkbox id=m-endocsv27userexamplesdistributed-transaction-check>
<label for=m-endocsv27userexamplesdistributed-transaction-check><a href=/en/docs/v2.7/user/examples/distributed-transaction/ title="Distributed transaction" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userexamplesdistributed-transaction><span>Transaction</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userexamplesdump-li><input type=checkbox id=m-endocsv27userexamplesdump-check>
<label for=m-endocsv27userexamplesdump-check><a href=/en/docs/v2.7/user/examples/dump/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userexamplesdump><span>Thread Dump</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userexamplesnetty4-li><input type=checkbox id=m-endocsv27userexamplesnetty4-check>
<label for=m-endocsv27userexamplesnetty4-check><a href=/en/docs/v2.7/user/examples/netty4/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userexamplesnetty4><span>Netty4</span></a></label></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child" id=m-endocsv27userreferences-li><input type=checkbox id=m-endocsv27userreferences-check>
<label for=m-endocsv27userreferences-check><a href=/en/docs/v2.7/user/references/ class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-endocsv27userreferences><span>References</span></a></label><ul class="ul-4 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child" id=m-endocsv27userreferencesxml-li><input type=checkbox id=m-endocsv27userreferencesxml-check>
<label for=m-endocsv27userreferencesxml-check><a href=/en/docs/v2.7/user/references/xml/ title="Schema Configuration Reference" class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-endocsv27userreferencesxml><span>XML</span></a></label><ul class="ul-5 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userreferencesxmldubbo-application-li><input type=checkbox id=m-endocsv27userreferencesxmldubbo-application-check>
<label for=m-endocsv27userreferencesxmldubbo-application-check><a href=/en/docs/v2.7/user/references/xml/dubbo-application/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userreferencesxmldubbo-application><span>dubbo:application</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userreferencesxmldubbo-argument-li><input type=checkbox id=m-endocsv27userreferencesxmldubbo-argument-check>
<label for=m-endocsv27userreferencesxmldubbo-argument-check><a href=/en/docs/v2.7/user/references/xml/dubbo-argument/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userreferencesxmldubbo-argument><span>dubbo:argument</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userreferencesxmldubbo-config-center-li><input type=checkbox id=m-endocsv27userreferencesxmldubbo-config-center-check>
<label for=m-endocsv27userreferencesxmldubbo-config-center-check><a href=/en/docs/v2.7/user/references/xml/dubbo-config-center/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userreferencesxmldubbo-config-center><span>dubbo:config-center</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userreferencesxmldubbo-consumer-li><input type=checkbox id=m-endocsv27userreferencesxmldubbo-consumer-check>
<label for=m-endocsv27userreferencesxmldubbo-consumer-check><a href=/en/docs/v2.7/user/references/xml/dubbo-consumer/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userreferencesxmldubbo-consumer><span>dubbo:consumer</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userreferencesxmldubbo-method-li><input type=checkbox id=m-endocsv27userreferencesxmldubbo-method-check>
<label for=m-endocsv27userreferencesxmldubbo-method-check><a href=/en/docs/v2.7/user/references/xml/dubbo-method/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userreferencesxmldubbo-method><span>dubbo:method</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userreferencesxmldubbo-module-li><input type=checkbox id=m-endocsv27userreferencesxmldubbo-module-check>
<label for=m-endocsv27userreferencesxmldubbo-module-check><a href=/en/docs/v2.7/user/references/xml/dubbo-module/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userreferencesxmldubbo-module><span>dubbo:module</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userreferencesxmldubbo-monitor-li><input type=checkbox id=m-endocsv27userreferencesxmldubbo-monitor-check>
<label for=m-endocsv27userreferencesxmldubbo-monitor-check><a href=/en/docs/v2.7/user/references/xml/dubbo-monitor/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userreferencesxmldubbo-monitor><span>dubbo:monitor</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userreferencesxmldubbo-parameter-li><input type=checkbox id=m-endocsv27userreferencesxmldubbo-parameter-check>
<label for=m-endocsv27userreferencesxmldubbo-parameter-check><a href=/en/docs/v2.7/user/references/xml/dubbo-parameter/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userreferencesxmldubbo-parameter><span>dubbo:parameter</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userreferencesxmldubbo-protocol-li><input type=checkbox id=m-endocsv27userreferencesxmldubbo-protocol-check>
<label for=m-endocsv27userreferencesxmldubbo-protocol-check><a href=/en/docs/v2.7/user/references/xml/dubbo-protocol/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userreferencesxmldubbo-protocol><span>dubbo:protocol</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userreferencesxmldubbo-provider-li><input type=checkbox id=m-endocsv27userreferencesxmldubbo-provider-check>
<label for=m-endocsv27userreferencesxmldubbo-provider-check><a href=/en/docs/v2.7/user/references/xml/dubbo-provider/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userreferencesxmldubbo-provider><span>dubbo:provider</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userreferencesxmldubbo-reference-li><input type=checkbox id=m-endocsv27userreferencesxmldubbo-reference-check>
<label for=m-endocsv27userreferencesxmldubbo-reference-check><a href=/en/docs/v2.7/user/references/xml/dubbo-reference/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userreferencesxmldubbo-reference><span>dubbo:reference</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userreferencesxmldubbo-registry-li><input type=checkbox id=m-endocsv27userreferencesxmldubbo-registry-check>
<label for=m-endocsv27userreferencesxmldubbo-registry-check><a href=/en/docs/v2.7/user/references/xml/dubbo-registry/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userreferencesxmldubbo-registry><span>dubbo:registry</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userreferencesxmldubbo-service-li><input type=checkbox id=m-endocsv27userreferencesxmldubbo-service-check>
<label for=m-endocsv27userreferencesxmldubbo-service-check><a href=/en/docs/v2.7/user/references/xml/dubbo-service/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userreferencesxmldubbo-service><span>dubbo:service</span></a></label></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child" id=m-endocsv27userreferencesprotocol-li><input type=checkbox id=m-endocsv27userreferencesprotocol-check>
<label for=m-endocsv27userreferencesprotocol-check><a href=/en/docs/v2.7/user/references/protocol/ title="Protocol References" class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-endocsv27userreferencesprotocol><span>Protocol</span></a></label><ul class="ul-5 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userreferencesprotocoldubbo-li><input type=checkbox id=m-endocsv27userreferencesprotocoldubbo-check>
<label for=m-endocsv27userreferencesprotocoldubbo-check><a href=/en/docs/v2.7/user/references/protocol/dubbo/ title="dubbo protocol" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userreferencesprotocoldubbo><span>dubbo://</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userreferencesprotocolrest-li><input type=checkbox id=m-endocsv27userreferencesprotocolrest-check>
<label for=m-endocsv27userreferencesprotocolrest-check><a href=/en/docs/v2.7/user/references/protocol/rest/ title="rest protocol" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userreferencesprotocolrest><span>rest://</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userreferencesprotocolhttp-li><input type=checkbox id=m-endocsv27userreferencesprotocolhttp-check>
<label for=m-endocsv27userreferencesprotocolhttp-check><a href=/en/docs/v2.7/user/references/protocol/http/ title="http protocol" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userreferencesprotocolhttp><span>http://</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userreferencesprotocolhessian-li><input type=checkbox id=m-endocsv27userreferencesprotocolhessian-check>
<label for=m-endocsv27userreferencesprotocolhessian-check><a href=/en/docs/v2.7/user/references/protocol/hessian/ title="hessian protocol" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userreferencesprotocolhessian><span>hessian://</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userreferencesprotocolredis-li><input type=checkbox id=m-endocsv27userreferencesprotocolredis-check>
<label for=m-endocsv27userreferencesprotocolredis-check><a href=/en/docs/v2.7/user/references/protocol/redis/ title="redis protocol" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userreferencesprotocolredis><span>redis://</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userreferencesprotocolthrift-li><input type=checkbox id=m-endocsv27userreferencesprotocolthrift-check>
<label for=m-endocsv27userreferencesprotocolthrift-check><a href=/en/docs/v2.7/user/references/protocol/thrift/ title="thrift protocol" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userreferencesprotocolthrift><span>thrift://</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userreferencesprotocolmemcached-li><input type=checkbox id=m-endocsv27userreferencesprotocolmemcached-check>
<label for=m-endocsv27userreferencesprotocolmemcached-check><a href=/en/docs/v2.7/user/references/protocol/memcached/ title="memcached protocol" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userreferencesprotocolmemcached><span>memcached://</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userreferencesprotocolrmi-li><input type=checkbox id=m-endocsv27userreferencesprotocolrmi-check>
<label for=m-endocsv27userreferencesprotocolrmi-check><a href=/en/docs/v2.7/user/references/protocol/rmi/ title="rmi protocol" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userreferencesprotocolrmi><span>rmi://</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userreferencesprotocolwebservice-li><input type=checkbox id=m-endocsv27userreferencesprotocolwebservice-check>
<label for=m-endocsv27userreferencesprotocolwebservice-check><a href=/en/docs/v2.7/user/references/protocol/webservice/ title="webservice protocol" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userreferencesprotocolwebservice><span>webservice://</span></a></label></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child" id=m-endocsv27userreferencesregistry-li><input type=checkbox id=m-endocsv27userreferencesregistry-check>
<label for=m-endocsv27userreferencesregistry-check><a href=/en/docs/v2.7/user/references/registry/ title="Registry Server References" class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-endocsv27userreferencesregistry><span>Registry Server</span></a></label><ul class="ul-5 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userreferencesregistrynacos-li><input type=checkbox id=m-endocsv27userreferencesregistrynacos-check>
<label for=m-endocsv27userreferencesregistrynacos-check><a href=/en/docs/v2.7/user/references/registry/nacos/ title="Nacos Registry Center" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userreferencesregistrynacos><span>Nacos</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userreferencesregistryzookeeper-li><input type=checkbox id=m-endocsv27userreferencesregistryzookeeper-check>
<label for=m-endocsv27userreferencesregistryzookeeper-check><a href=/en/docs/v2.7/user/references/registry/zookeeper/ title="Zookeeper Registry Server" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userreferencesregistryzookeeper><span>Zookeeper</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userreferencesregistrymulticast-li><input type=checkbox id=m-endocsv27userreferencesregistrymulticast-check>
<label for=m-endocsv27userreferencesregistrymulticast-check><a href=/en/docs/v2.7/user/references/registry/multicast/ title="Multicast Registry" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userreferencesregistrymulticast><span>Multicast</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userreferencesregistryredis-li><input type=checkbox id=m-endocsv27userreferencesregistryredis-check>
<label for=m-endocsv27userreferencesregistryredis-check><a href=/en/docs/v2.7/user/references/registry/redis/ title="Redis Registry Server" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userreferencesregistryredis><span>Redis</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userreferencesregistrysimple-li><input type=checkbox id=m-endocsv27userreferencesregistrysimple-check>
<label for=m-endocsv27userreferencesregistrysimple-check><a href=/en/docs/v2.7/user/references/registry/simple/ title="Simple Registry Server" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userreferencesregistrysimple><span>Simple</span></a></label></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userreferencesmetadata-li><input type=checkbox id=m-endocsv27userreferencesmetadata-check>
<label for=m-endocsv27userreferencesmetadata-check><a href=/en/docs/v2.7/user/references/metadata/ title="Metadata Reference" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userreferencesmetadata><span>Metadata</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userreferencesapi-li><input type=checkbox id=m-endocsv27userreferencesapi-check>
<label for=m-endocsv27userreferencesapi-check><a href=/en/docs/v2.7/user/references/api/ title="API Reference" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userreferencesapi><span>API</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userreferencesqos-li><input type=checkbox id=m-endocsv27userreferencesqos-check>
<label for=m-endocsv27userreferencesqos-check><a href=/en/docs/v2.7/user/references/qos/ title="Qos Command Usage " class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userreferencesqos><span>Qos</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userreferencestelnet-li><input type=checkbox id=m-endocsv27userreferencestelnet-check>
<label for=m-endocsv27userreferencestelnet-check><a href=/en/docs/v2.7/user/references/telnet/ title="Telnet Command Reference" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userreferencestelnet><span>Telnet</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userreferencesmaven-li><input type=checkbox id=m-endocsv27userreferencesmaven-check>
<label for=m-endocsv27userreferencesmaven-check><a href=/en/docs/v2.7/user/references/maven/ title="Maven Plugin Reference" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userreferencesmaven><span>Maven</span></a></label></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userbest-practice-li><input type=checkbox id=m-endocsv27userbest-practice-check>
<label for=m-endocsv27userbest-practice-check><a href=/en/docs/v2.7/user/best-practice/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userbest-practice><span>Best practice</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userrecommend-li><input type=checkbox id=m-endocsv27userrecommend-check>
<label for=m-endocsv27userrecommend-check><a href=/en/docs/v2.7/user/recommend/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userrecommend><span>Recommended usage</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27usercapacity-plan-li><input type=checkbox id=m-endocsv27usercapacity-plan-check>
<label for=m-endocsv27usercapacity-plan-check><a href=/en/docs/v2.7/user/capacity-plan/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27usercapacity-plan><span>Capacity plan</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userperf-test-li><input type=checkbox id=m-endocsv27userperf-test-check>
<label for=m-endocsv27userperf-test-check><a href=/en/docs/v2.7/user/perf-test/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userperf-test><span>Performance</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27usercoveragence-li><input type=checkbox id=m-endocsv27usercoveragence-check>
<label for=m-endocsv27usercoveragence-check><a href=/en/docs/v2.7/user/coveragence/ title="Test coverage report" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27usercoveragence><span>Test coverage</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userbenchmark-tool-li><input type=checkbox id=m-endocsv27userbenchmark-tool-check>
<label for=m-endocsv27userbenchmark-tool-check><a href=/en/docs/v2.7/user/benchmark-tool/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userbenchmark-tool><span>Benchmark Suite</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userrest-li><input type=checkbox id=m-endocsv27userrest-check>
<label for=m-endocsv27userrest-check><a href=/en/docs/v2.7/user/rest/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userrest><span>REST support</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27usersimple-monitor-li><input type=checkbox id=m-endocsv27usersimple-monitor-check>
<label for=m-endocsv27usersimple-monitor-check><a href=/en/docs/v2.7/user/simple-monitor/ title="Simple Monitor" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27usersimple-monitor><span>Simple monitor</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child" id=m-endocsv27userlanguages-li><input type=checkbox id=m-endocsv27userlanguages-check>
<label for=m-endocsv27userlanguages-check><a href=/en/docs/v2.7/user/languages/ class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-endocsv27userlanguages><span>Other Languages</span></a></label><ul class="ul-4 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child" id=m-endocsv27userlanguageserlang-li><input type=checkbox id=m-endocsv27userlanguageserlang-check>
<label for=m-endocsv27userlanguageserlang-check><a href=/en/docs/v2.7/user/languages/erlang/ class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-endocsv27userlanguageserlang><span>Erlang</span></a></label><ul class="ul-5 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userlanguageserlangquick-start-li><input type=checkbox id=m-endocsv27userlanguageserlangquick-start-check>
<label for=m-endocsv27userlanguageserlangquick-start-check><a href=/en/docs/v2.7/user/languages/erlang/quick-start/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userlanguageserlangquick-start><span>Quick Start</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userlanguageserlangreference-li><input type=checkbox id=m-endocsv27userlanguageserlangreference-check>
<label for=m-endocsv27userlanguageserlangreference-check><a href=/en/docs/v2.7/user/languages/erlang/reference/ title="Consumer Configuration" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userlanguageserlangreference><span>Consumer</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userlanguageserlangservice-li><input type=checkbox id=m-endocsv27userlanguageserlangservice-check>
<label for=m-endocsv27userlanguageserlangservice-check><a href=/en/docs/v2.7/user/languages/erlang/service/ title="Provider Configuration" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userlanguageserlangservice><span>Provider</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27userlanguageserlangserialization-li><input type=checkbox id=m-endocsv27userlanguageserlangserialization-check>
<label for=m-endocsv27userlanguageserlangserialization-check><a href=/en/docs/v2.7/user/languages/erlang/serialization/ title="Protocol Configuration" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27userlanguageserlangserialization><span>Protocol</span></a></label></li></ul></li></ul></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child" id=m-endocsv27dev-li><input type=checkbox id=m-endocsv27dev-check>
<label for=m-endocsv27dev-check><a href=/en/docs/v2.7/dev/ title="Dubbo Developer Guide" class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-endocsv27dev><span>Developer</span></a></label><ul class="ul-3 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27devbuild-li><input type=checkbox id=m-endocsv27devbuild-check>
<label for=m-endocsv27devbuild-check><a href=/en/docs/v2.7/dev/build/ title="Source Code Build" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27devbuild><span>Build</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27devdesign-li><input type=checkbox id=m-endocsv27devdesign-check>
<label for=m-endocsv27devdesign-check><a href=/en/docs/v2.7/dev/design/ title="Framework Design" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27devdesign><span>Design</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27devspi-li><input type=checkbox id=m-endocsv27devspi-check>
<label for=m-endocsv27devspi-check><a href=/en/docs/v2.7/dev/spi/ title="SPI Loading" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27devspi><span>SPI</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27devimplementation-li><input type=checkbox id=m-endocsv27devimplementation-check>
<label for=m-endocsv27devimplementation-check><a href=/en/docs/v2.7/dev/implementation/ title="Implementation details" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27devimplementation><span>Implementation</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child" id=m-endocsv27devprincipals-li><input type=checkbox id=m-endocsv27devprincipals-check>
<label for=m-endocsv27devprincipals-check><a href=/en/docs/v2.7/dev/principals/ title="Dubbo Design Principals" class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-endocsv27devprincipals><span>Design Principals</span></a></label><ul class="ul-4 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27devprincipalscode-detail-li><input type=checkbox id=m-endocsv27devprincipalscode-detail-check>
<label for=m-endocsv27devprincipalscode-detail-check><a href=/en/docs/v2.7/dev/principals/code-detail/ title="The Devil Is In The Details" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27devprincipalscode-detail><span>Details</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27devprincipalsconfiguration-li><input type=checkbox id=m-endocsv27devprincipalsconfiguration-check>
<label for=m-endocsv27devprincipalsconfiguration-check><a href=/en/docs/v2.7/dev/principals/configuration/ title="The Configuration Design" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27devprincipalsconfiguration><span>Configuration</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27devprincipalsdummy-li><input type=checkbox id=m-endocsv27devprincipalsdummy-check>
<label for=m-endocsv27devprincipalsdummy-check><a href=/en/docs/v2.7/dev/principals/dummy/ title=' "Fool-proof" Design' class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27devprincipalsdummy><span>Fool-proof</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27devprincipalsexpansibility-li><input type=checkbox id=m-endocsv27devprincipalsexpansibility-check>
<label for=m-endocsv27devprincipalsexpansibility-check><a href=/en/docs/v2.7/dev/principals/expansibility/ title="Talk About Expansion Of Extension And Incremental Extension" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27devprincipalsexpansibility><span>Extensibility</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27devprincipalsextension-li><input type=checkbox id=m-endocsv27devprincipalsextension-check>
<label for=m-endocsv27devprincipalsextension-check><a href=/en/docs/v2.7/dev/principals/extension/ title="Extension Points To Reconstruct" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27devprincipalsextension><span>Extension</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27devprincipalsgeneral-knowledge-li><input type=checkbox id=m-endocsv27devprincipalsgeneral-knowledge-check>
<label for=m-endocsv27devprincipalsgeneral-knowledge-check><a href=/en/docs/v2.7/dev/principals/general-knowledge/ title="Some In The Design Of The Basic Common Sense" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27devprincipalsgeneral-knowledge><span>General Rule</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27devprincipalsrobustness-li><input type=checkbox id=m-endocsv27devprincipalsrobustness-check>
<label for=m-endocsv27devprincipalsrobustness-check><a href=/en/docs/v2.7/dev/principals/robustness/ title="The Robustness Of The Design Implementation" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27devprincipalsrobustness><span>Robustness</span></a></label></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child" id=m-endocsv27devimpls-li><input type=checkbox id=m-endocsv27devimpls-check>
<label for=m-endocsv27devimpls-check><a href=/en/docs/v2.7/dev/impls/ title="SPI Extension Implementations" class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-endocsv27devimpls><span>SPI Impls</span></a></label><ul class="ul-4 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27devimplsprotocol-li><input type=checkbox id=m-endocsv27devimplsprotocol-check>
<label for=m-endocsv27devimplsprotocol-check><a href=/en/docs/v2.7/dev/impls/protocol/ title="Protocol Extension" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27devimplsprotocol><span>Protocol</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27devimplsfilter-li><input type=checkbox id=m-endocsv27devimplsfilter-check>
<label for=m-endocsv27devimplsfilter-check><a href=/en/docs/v2.7/dev/impls/filter/ title="Filter Extension" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27devimplsfilter><span>Filter</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27devimplsinvoker-listener-li><input type=checkbox id=m-endocsv27devimplsinvoker-listener-check>
<label for=m-endocsv27devimplsinvoker-listener-check><a href=/en/docs/v2.7/dev/impls/invoker-listener/ title="InvokerListener Extension" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27devimplsinvoker-listener><span>InvokerListener</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27devimplsexporter-listener-li><input type=checkbox id=m-endocsv27devimplsexporter-listener-check>
<label for=m-endocsv27devimplsexporter-listener-check><a href=/en/docs/v2.7/dev/impls/exporter-listener/ title="ExporterListener Extension" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27devimplsexporter-listener><span>ExporterListener</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27devimplscluster-li><input type=checkbox id=m-endocsv27devimplscluster-check>
<label for=m-endocsv27devimplscluster-check><a href=/en/docs/v2.7/dev/impls/cluster/ title="Cluster Extension" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27devimplscluster><span>Cluster</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27devimplsrouter-li><input type=checkbox id=m-endocsv27devimplsrouter-check>
<label for=m-endocsv27devimplsrouter-check><a href=/en/docs/v2.7/dev/impls/router/ title="Router Extension" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27devimplsrouter><span>Router</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27devimplsload-balance-li><input type=checkbox id=m-endocsv27devimplsload-balance-check>
<label for=m-endocsv27devimplsload-balance-check><a href=/en/docs/v2.7/dev/impls/load-balance/ title="LoadBalance Extension" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27devimplsload-balance><span>LoadBalance</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27devimplsmerger-li><input type=checkbox id=m-endocsv27devimplsmerger-check>
<label for=m-endocsv27devimplsmerger-check><a href=/en/docs/v2.7/dev/impls/merger/ title="Merger Extension" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27devimplsmerger><span>Merger</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27devimplsregistry-li><input type=checkbox id=m-endocsv27devimplsregistry-check>
<label for=m-endocsv27devimplsregistry-check><a href=/en/docs/v2.7/dev/impls/registry/ title="Registry Extension" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27devimplsregistry><span>Registry</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27devimplsmonitor-li><input type=checkbox id=m-endocsv27devimplsmonitor-check>
<label for=m-endocsv27devimplsmonitor-check><a href=/en/docs/v2.7/dev/impls/monitor/ title="Monitor Extension" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27devimplsmonitor><span>Monitor</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27devimplsextension-factory-li><input type=checkbox id=m-endocsv27devimplsextension-factory-check>
<label for=m-endocsv27devimplsextension-factory-check><a href=/en/docs/v2.7/dev/impls/extension-factory/ title="ExtensionFactory Extension" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27devimplsextension-factory><span>ExtensionFactory</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27devimplsproxy-factory-li><input type=checkbox id=m-endocsv27devimplsproxy-factory-check>
<label for=m-endocsv27devimplsproxy-factory-check><a href=/en/docs/v2.7/dev/impls/proxy-factory/ title="ProxyFactory Extension" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27devimplsproxy-factory><span>ProxyFactory</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27devimplscompiler-li><input type=checkbox id=m-endocsv27devimplscompiler-check>
<label for=m-endocsv27devimplscompiler-check><a href=/en/docs/v2.7/dev/impls/compiler/ title="Compiler Extension" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27devimplscompiler><span>Compiler</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27devimplsconfig-center-li><input type=checkbox id=m-endocsv27devimplsconfig-center-check>
<label for=m-endocsv27devimplsconfig-center-check><a href=/en/docs/v2.7/dev/impls/config-center/ title="Dubbo Configuration Center Extensions" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27devimplsconfig-center><span>Config Center</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27devimplsdispatcher-li><input type=checkbox id=m-endocsv27devimplsdispatcher-check>
<label for=m-endocsv27devimplsdispatcher-check><a href=/en/docs/v2.7/dev/impls/dispatcher/ title="Dispatcher Extension" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27devimplsdispatcher><span>Dispatcher</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27devimplsthreadpool-li><input type=checkbox id=m-endocsv27devimplsthreadpool-check>
<label for=m-endocsv27devimplsthreadpool-check><a href=/en/docs/v2.7/dev/impls/threadpool/ title="ThreadPool Extension" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27devimplsthreadpool><span>ThreadPool</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27devimplsserialize-li><input type=checkbox id=m-endocsv27devimplsserialize-check>
<label for=m-endocsv27devimplsserialize-check><a href=/en/docs/v2.7/dev/impls/serialize/ title="Serialization Extension" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27devimplsserialize><span>Serialization</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27devimplsremoting-li><input type=checkbox id=m-endocsv27devimplsremoting-check>
<label for=m-endocsv27devimplsremoting-check><a href=/en/docs/v2.7/dev/impls/remoting/ title="Transporter Extension" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27devimplsremoting><span>Transporter</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27devimplsexchanger-li><input type=checkbox id=m-endocsv27devimplsexchanger-check>
<label for=m-endocsv27devimplsexchanger-check><a href=/en/docs/v2.7/dev/impls/exchanger/ title="Exchanger Extension" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27devimplsexchanger><span>Exchanger</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27devimplsnetworker-li><input type=checkbox id=m-endocsv27devimplsnetworker-check>
<label for=m-endocsv27devimplsnetworker-check><a href=/en/docs/v2.7/dev/impls/networker/ title="Networker Extension" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27devimplsnetworker><span>Networker</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27devimplstelnet-handler-li><input type=checkbox id=m-endocsv27devimplstelnet-handler-check>
<label for=m-endocsv27devimplstelnet-handler-check><a href=/en/docs/v2.7/dev/impls/telnet-handler/ title="TelnetHandler Extension" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27devimplstelnet-handler><span>TelnetHandler</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27devimplsstatus-checker-li><input type=checkbox id=m-endocsv27devimplsstatus-checker-check>
<label for=m-endocsv27devimplsstatus-checker-check><a href=/en/docs/v2.7/dev/impls/status-checker/ title="StatusChecker Extension" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27devimplsstatus-checker><span>StatusChecker</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27devimplscontainer-li><input type=checkbox id=m-endocsv27devimplscontainer-check>
<label for=m-endocsv27devimplscontainer-check><a href=/en/docs/v2.7/dev/impls/container/ title="Container Extension" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27devimplscontainer><span>Container</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27devimplspage-li><input type=checkbox id=m-endocsv27devimplspage-check>
<label for=m-endocsv27devimplspage-check><a href=/en/docs/v2.7/dev/impls/page/ title="PageHandler Extension" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27devimplspage><span>PageHandler</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27devimplscache-li><input type=checkbox id=m-endocsv27devimplscache-check>
<label for=m-endocsv27devimplscache-check><a href=/en/docs/v2.7/dev/impls/cache/ title="Cache Extension" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27devimplscache><span>Cache</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27devimplsvalidation-li><input type=checkbox id=m-endocsv27devimplsvalidation-check>
<label for=m-endocsv27devimplsvalidation-check><a href=/en/docs/v2.7/dev/impls/validation/ title="Validation Extension" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27devimplsvalidation><span>Validation</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27devimplslogger-adapter-li><input type=checkbox id=m-endocsv27devimplslogger-adapter-check>
<label for=m-endocsv27devimplslogger-adapter-check><a href=/en/docs/v2.7/dev/impls/logger-adapter/ title="LoggerAdapter Extension" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27devimplslogger-adapter><span>LoggerAdapter</span></a></label></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27devcontract-li><input type=checkbox id=m-endocsv27devcontract-check>
<label for=m-endocsv27devcontract-check><a href=/en/docs/v2.7/dev/contract/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27devcontract><span>Public Agreement</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27devrelease-li><input type=checkbox id=m-endocsv27devrelease-check>
<label for=m-endocsv27devrelease-check><a href=/en/docs/v2.7/dev/release/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27devrelease><span>Versions</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27devchecklist-li><input type=checkbox id=m-endocsv27devchecklist-check>
<label for=m-endocsv27devchecklist-check><a href=/en/docs/v2.7/dev/checklist/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27devchecklist><span>Checklist</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27devcode-smell-li><input type=checkbox id=m-endocsv27devcode-smell-check>
<label for=m-endocsv27devcode-smell-check><a href=/en/docs/v2.7/dev/code-smell/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27devcode-smell><span>Bad Smell</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27devcoding-li><input type=checkbox id=m-endocsv27devcoding-check>
<label for=m-endocsv27devcoding-check><a href=/en/docs/v2.7/dev/coding/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27devcoding><span>Coding Convention</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27devtck-li><input type=checkbox id=m-endocsv27devtck-check>
<label for=m-endocsv27devtck-check><a href=/en/docs/v2.7/dev/tck/ title="Compatibility Test" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27devtck><span>TCK</span></a></label></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child" id=m-endocsv27admin-li><input type=checkbox id=m-endocsv27admin-check>
<label for=m-endocsv27admin-check><a href=/en/docs/v2.7/admin/ title="Admin Guide" class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-endocsv27admin><span>Admin</span></a></label><ul class="ul-3 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child" id=m-endocsv27adminops-li><input type=checkbox id=m-endocsv27adminops-check>
<label for=m-endocsv27adminops-check><a href=/en/docs/v2.7/admin/ops/ title="Dubbo Admin Guide" class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-endocsv27adminops><span>Dubbo Admin</span></a></label><ul class="ul-4 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27adminopsfunctions-li><input type=checkbox id=m-endocsv27adminopsfunctions-check>
<label for=m-endocsv27adminopsfunctions-check><a href=/en/docs/v2.7/admin/ops/functions/ title="Dubbo Admin Functions" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27adminopsfunctions><span>Functions</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27adminopsintroduction-li><input type=checkbox id=m-endocsv27adminopsintroduction-check>
<label for=m-endocsv27adminopsintroduction-check><a href=/en/docs/v2.7/admin/ops/introduction/ title="Dubbo Admin Introductions" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27adminopsintroduction><span>Introductions</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27adminopssearch-li><input type=checkbox id=m-endocsv27adminopssearch-check>
<label for=m-endocsv27adminopssearch-check><a href=/en/docs/v2.7/admin/ops/search/ title="Service Search And Service Detail" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27adminopssearch><span>Search</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27adminopstest-li><input type=checkbox id=m-endocsv27adminopstest-check>
<label for=m-endocsv27adminopstest-check><a href=/en/docs/v2.7/admin/ops/test/ title="Service Test" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27adminopstest><span>Test</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27adminopsapidocs-li><input type=checkbox id=m-endocsv27adminopsapidocs-check>
<label for=m-endocsv27adminopsapidocs-check><a href=/en/docs/v2.7/admin/ops/apidocs/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27adminopsapidocs><span>API Docs&amp;Test</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27adminopsgovernance-li><input type=checkbox id=m-endocsv27adminopsgovernance-check>
<label for=m-endocsv27adminopsgovernance-check><a href=/en/docs/v2.7/admin/ops/governance/ title="Service Governance And Configuration Management" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27adminopsgovernance><span>Governance</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27adminopspinpoint-li><input type=checkbox id=m-endocsv27adminopspinpoint-check>
<label for=m-endocsv27adminopspinpoint-check><a href=/en/docs/v2.7/admin/ops/pinpoint/ title="Tracking with Pinpoint" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27adminopspinpoint><span>Pinpoint</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27adminopsskywalking-li><input type=checkbox id=m-endocsv27adminopsskywalking-check>
<label for=m-endocsv27adminopsskywalking-check><a href=/en/docs/v2.7/admin/ops/skywalking/ title="Tracing Dubbo service with Apache Skywalking" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27adminopsskywalking><span>Skywalking</span></a></label></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child" id=m-endocsv27admininstall-li><input type=checkbox id=m-endocsv27admininstall-check>
<label for=m-endocsv27admininstall-check><a href=/en/docs/v2.7/admin/install/ title="Dubbo Installation Guide" class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-endocsv27admininstall><span>Installation</span></a></label><ul class="ul-4 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27admininstalladmin-console-li><input type=checkbox id=m-endocsv27admininstalladmin-console-check>
<label for=m-endocsv27admininstalladmin-console-check><a href=/en/docs/v2.7/admin/install/admin-console/ title="Install Admin Console" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27admininstalladmin-console><span>Admin Console</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27admininstallprovider-demo-li><input type=checkbox id=m-endocsv27admininstallprovider-demo-check>
<label for=m-endocsv27admininstallprovider-demo-check><a href=/en/docs/v2.7/admin/install/provider-demo/ title="Install Demo Provider" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27admininstallprovider-demo><span>Demo Provider</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27admininstallconsumer-demo-li><input type=checkbox id=m-endocsv27admininstallconsumer-demo-check>
<label for=m-endocsv27admininstallconsumer-demo-check><a href=/en/docs/v2.7/admin/install/consumer-demo/ title="Install Demo Consumer" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27admininstallconsumer-demo><span>Demo Consumer</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27admininstallzookeeper-li><input type=checkbox id=m-endocsv27admininstallzookeeper-check>
<label for=m-endocsv27admininstallzookeeper-check><a href=/en/docs/v2.7/admin/install/zookeeper/ title="install Zookeeper Configuration Center" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27admininstallzookeeper><span>Config Center</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27admininstallredis-li><input type=checkbox id=m-endocsv27admininstallredis-check>
<label for=m-endocsv27admininstallredis-check><a href=/en/docs/v2.7/admin/install/redis/ title="Install Redis Register Center" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27admininstallredis><span>Register Center</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv27admininstallmonitor-center-li><input type=checkbox id=m-endocsv27admininstallmonitor-center-check>
<label for=m-endocsv27admininstallmonitor-center-check><a href=/en/docs/v2.7/admin/install/monitor-center/ title="Install Simple monitor center" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv27admininstallmonitor-center><span>Monitor Center</span></a></label></li></ul></li></ul></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child" id=m-endocsv30-li><input type=checkbox id=m-endocsv30-check>
<label for=m-endocsv30-check><a href=/en/docs/v3.0/ class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-endocsv30><span>Dubbo 3.0</span></a></label><ul class="ul-2 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv30loadbalance-li><input type=checkbox id=m-endocsv30loadbalance-check>
<label for=m-endocsv30loadbalance-check><a href=/en/docs/v3.0/loadbalance/ class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-endocsv30loadbalance><span>Load Balance</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv30whats-new-in-dubbo3-li><input type=checkbox id=m-endocsv30whats-new-in-dubbo3-check>
<label for=m-endocsv30whats-new-in-dubbo3-check><a href=/en/docs/v3.0/whats-new-in-dubbo3/ class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-endocsv30whats-new-in-dubbo3><span>What's new in Apache Dubbo 3.x?</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child" id=m-endocsv30references-li><input type=checkbox id=m-endocsv30references-check>
<label for=m-endocsv30references-check><a href=/en/docs/v3.0/references/ title="Function Reference Manual" class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-endocsv30references><span>Reference</span></a></label><ul class="ul-3 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child" id=m-endocsv30referenceslifecycle-li><input type=checkbox id=m-endocsv30referenceslifecycle-check>
<label for=m-endocsv30referenceslifecycle-check><a href=/en/docs/v3.0/references/lifecycle/ title="Align with Kubernetes Lifecycle" class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-endocsv30referenceslifecycle><span>Probe</span></a></label><ul class="ul-4 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv30referenceslifecyclebrief-li><input type=checkbox id=m-endocsv30referenceslifecyclebrief-check>
<label for=m-endocsv30referenceslifecyclebrief-check><a href=/en/docs/v3.0/references/lifecycle/brief/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsv30referenceslifecyclebrief><span>Brief</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-endocsv30referenceslifecycleliveness-li><input type=checkbox id=m-endocsv30referenceslifecycleliveness-check>
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<label for=m-endocsnoticessecurity-check><a href=/en/docs/notices/security/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-endocsnoticessecurity><span>Security</span></a></label></li></ul></li></ul></li></ul></nav></div></div><main class="col-12 col-md-9 col-xl-8 pl-md-5" role=main><nav aria-label=breadcrumb class=td-breadcrumbs><ol class=breadcrumb><li class=breadcrumb-item><a href=https://dubbo.apache.org/en/docs/>Documentation</a></li><li class=breadcrumb-item><a href=https://dubbo.apache.org/en/docs/v2.7/>Dubbo 2.7</a></li><li class=breadcrumb-item><a href=https://dubbo.apache.org/en/docs/v2.7/dev/>Developer</a></li><li class="breadcrumb-item active" aria-current=page><a href=https://dubbo.apache.org/en/docs/v2.7/dev/spi/ aria-disabled=true class="btn-link disabled">SPI</a></li></ol></nav><div class=td-content><h1>SPI Loading</h1><div class=lead>How Dubbo SPI works</div><header class=article-meta></header><h2 id=spi-config>SPI Config</h2><h3 id=source>Source:</h3><p>Dubbo SPI is inherited from standard JDK SPI(Service Provider Interface) and makes it more powerful.</p><p>Dubbo fixed below issues of the standard JDK SPI:</p><ul><li>The standard JDK SPI will load and instantize all the implementations at once. It will be a waste of resources if one implementation is timecosted, but never be used.</li><li>We can&rsquo;t accquire the SPI name, if loading the SPI implementation is failed.For example: standard JDK ScriptEngine, get script type by invoking method getName(). RubyScriptEngine class will load failed if the depenency jar jruby.jar is missing, and the real error info will be lost. When user executes ruby scripts, the program throws exception that doesn&rsquo;t support ruby, but it is not the real cause.</li><li>Enhance the SPI functionality by supporting IoC and AOP, one SPI can be easily injected by another SPI simply using setter.</li></ul><h3 id=appointment>Appointment:</h3><p>In the jar file containing extension class <sup id=fnref:1><a href=#fn:1 class=footnote-ref role=doc-noteref>1</a></sup>, places a config file <code>META-INF/dubbo/full interface name</code>, file content pattern: <code>SPI name=the fully qualified name for the extension class</code>, use new line seperator for multiple implementation.</p><h3 id=example>Example:</h3><p>To extend Dubbo Protocol, place a text file in the extension jar file: <code>META-INF/dubbo/org.apache.dubbo.rpc.Protocol</code>, content:</p><div class=highlight><pre tabindex=0 style=color:#93a1a1;background-color:#002b36;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-properties data-lang=properties><span style=display:flex><span>xxx<span style=color:#719e07>=</span><span style=color:#2aa198>com.alibaba.xxx.XxxProtocol</span>
</span></span></code></pre></div><p>content of the implementation <sup id=fnref:2><a href=#fn:2 class=footnote-ref role=doc-noteref>2</a></sup>:</p><div class=highlight><pre tabindex=0 style=color:#93a1a1;background-color:#002b36;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-java data-lang=java><span style=display:flex><span><span style=color:#719e07>package</span> com.alibaba.xxx<span style=color:#719e07>;</span>
</span></span><span style=display:flex><span>
</span></span><span style=display:flex><span><span style=color:#719e07>import</span> org.apache.dubbo.rpc.Protocol<span style=color:#719e07>;</span>
</span></span><span style=display:flex><span>
</span></span><span style=display:flex><span><span style=color:#268bd2>public</span> <span style=color:#268bd2>class</span> <span style=color:#268bd2>XxxProtocol</span> <span style=color:#268bd2>implements</span> Protocol <span style=color:#719e07>{</span>
</span></span><span style=display:flex><span> <span style=color:#586e75>// ...
</span></span></span><span style=display:flex><span><span style=color:#586e75></span><span style=color:#719e07>}</span>
</span></span></code></pre></div><h3 id=configuration-in-config-module>Configuration in config module</h3><p>In Dubbo config module, all SPI points have related attributes or labels, we can choose the specific SPI implementation by using its name. Like:</p><div class=highlight><pre tabindex=0 style=color:#93a1a1;background-color:#002b36;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-xml data-lang=xml><span style=display:flex><span><span style=color:#268bd2>&lt;dubbo:protocol</span> name=<span style=color:#2aa198>&#34;xxx&#34;</span> <span style=color:#268bd2>/&gt;</span>
</span></span></code></pre></div><h2 id=spi-features>SPI Features</h2><h3 id=spi-auto-wrap>SPI Auto Wrap</h3><p>Auto wrap the SPI&rsquo;s Wrapper class. <code>ExtensionLoader</code> loads the SPI implementation, if the SPI has a copy instructor, it will be regarded as the SPI&rsquo;s Wrapper class.</p><p>Wrapper class content:</p><div class=highlight><pre tabindex=0 style=color:#93a1a1;background-color:#002b36;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-java data-lang=java><span style=display:flex><span><span style=color:#719e07>package</span> com.alibaba.xxx<span style=color:#719e07>;</span>
</span></span><span style=display:flex><span>
</span></span><span style=display:flex><span><span style=color:#719e07>import</span> org.apache.dubbo.rpc.Protocol<span style=color:#719e07>;</span>
</span></span><span style=display:flex><span>
</span></span><span style=display:flex><span><span style=color:#268bd2>public</span> <span style=color:#268bd2>class</span> <span style=color:#268bd2>XxxProtocolWrapper</span> <span style=color:#268bd2>implements</span> Protocol <span style=color:#719e07>{</span>
</span></span><span style=display:flex><span> Protocol impl<span style=color:#719e07>;</span>
</span></span><span style=display:flex><span>
</span></span><span style=display:flex><span> <span style=color:#268bd2>public</span> <span style=color:#268bd2>XxxProtocolWrapper</span><span style=color:#719e07>(</span>Protocol protocol<span style=color:#719e07>)</span> <span style=color:#719e07>{</span> impl <span style=color:#719e07>=</span> protocol<span style=color:#719e07>;</span> <span style=color:#719e07>}</span>
</span></span><span style=display:flex><span>
</span></span><span style=display:flex><span> <span style=color:#586e75>//after interface method is executed, the method in extension will be executed
</span></span></span><span style=display:flex><span><span style=color:#586e75></span> <span style=color:#268bd2>public</span> <span style=color:#dc322f>void</span> <span style=color:#268bd2>refer</span><span style=color:#719e07>()</span> <span style=color:#719e07>{</span>
</span></span><span style=display:flex><span> <span style=color:#586e75>//... some operation
</span></span></span><span style=display:flex><span><span style=color:#586e75></span> impl<span style=color:#719e07>.</span>refer<span style=color:#719e07>();</span>
</span></span><span style=display:flex><span> <span style=color:#586e75>// ... some operation
</span></span></span><span style=display:flex><span><span style=color:#586e75></span> <span style=color:#719e07>}</span>
</span></span><span style=display:flex><span>
</span></span><span style=display:flex><span> <span style=color:#586e75>// ...
</span></span></span><span style=display:flex><span><span style=color:#586e75></span><span style=color:#719e07>}</span>
</span></span></code></pre></div><p>Wrapper class also implements the same SPI interface, but Wrapper is not the real implementation. It is used for wrap the real implementation returned from the <code>ExtensionLoader</code>. The real returned instance by <code>ExtensionLoader</code> is the Wrapper class instance, Wrapper holder the real SPI implementation class.</p><p>There can be many Wrapper for one spi, simply add one if you need.</p><p>With Wrapper class, you will be able to move same logics into Wrapper for all SPIs. Newly added Wrapper class add external logics for all SPIs, looks like AOP, Wrapper acts as a proxy for SPI.</p><h3 id=spi-auto-load>SPI Auto Load</h3><p>when loading the SPI, Dubbo will auto load the depency SPI. When one SPI implementation contains attribute which is also an SPI of another type,<code>ExtensionLoader</code> will automatically load the depency SPI. <code>ExtensionLoader</code> knows all the members of the specific SPI by scanning the setter method of all implementation class.</p><p>Demo: two SPI <code>CarMaker</code>(car maker)、<code>WheelMaker</code> (wheel maker)</p><p>Intefaces look like:</p><div class=highlight><pre tabindex=0 style=color:#93a1a1;background-color:#002b36;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-java data-lang=java><span style=display:flex><span><span style=color:#268bd2>public</span> <span style=color:#268bd2>interface</span> <span style=color:#268bd2>CarMaker</span> <span style=color:#719e07>{</span>
</span></span><span style=display:flex><span> Car <span style=color:#268bd2>makeCar</span><span style=color:#719e07>();</span>
</span></span><span style=display:flex><span><span style=color:#719e07>}</span>
</span></span><span style=display:flex><span>
</span></span><span style=display:flex><span><span style=color:#268bd2>public</span> <span style=color:#268bd2>interface</span> <span style=color:#268bd2>WheelMaker</span> <span style=color:#719e07>{</span>
</span></span><span style=display:flex><span> Wheel <span style=color:#268bd2>makeWheel</span><span style=color:#719e07>();</span>
</span></span><span style=display:flex><span><span style=color:#719e07>}</span>
</span></span></code></pre></div><p><code>CarMaker</code>&rsquo;s implementation:</p><div class=highlight><pre tabindex=0 style=color:#93a1a1;background-color:#002b36;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-java data-lang=java><span style=display:flex><span><span style=color:#268bd2>public</span> <span style=color:#268bd2>class</span> <span style=color:#268bd2>RaceCarMaker</span> <span style=color:#268bd2>implements</span> CarMaker <span style=color:#719e07>{</span>
</span></span><span style=display:flex><span> WheelMaker wheelMaker<span style=color:#719e07>;</span>
</span></span><span style=display:flex><span>
</span></span><span style=display:flex><span> <span style=color:#268bd2>public</span> <span style=color:#dc322f>void</span> <span style=color:#268bd2>setWheelMaker</span><span style=color:#719e07>(</span>WheelMaker wheelMaker<span style=color:#719e07>)</span> <span style=color:#719e07>{</span>
</span></span><span style=display:flex><span> <span style=color:#719e07>this</span><span style=color:#719e07>.</span>wheelMaker <span style=color:#719e07>=</span> wheelMaker<span style=color:#719e07>;</span>
</span></span><span style=display:flex><span> <span style=color:#719e07>}</span>
</span></span><span style=display:flex><span>
</span></span><span style=display:flex><span> <span style=color:#268bd2>public</span> Car <span style=color:#268bd2>makeCar</span><span style=color:#719e07>()</span> <span style=color:#719e07>{</span>
</span></span><span style=display:flex><span> <span style=color:#586e75>// ...
</span></span></span><span style=display:flex><span><span style=color:#586e75></span> Wheel wheel <span style=color:#719e07>=</span> wheelMaker<span style=color:#719e07>.</span>makeWheel<span style=color:#719e07>();</span>
</span></span><span style=display:flex><span> <span style=color:#586e75>// ...
</span></span></span><span style=display:flex><span><span style=color:#586e75></span> <span style=color:#719e07>return</span> <span style=color:#719e07>new</span> RaceCar<span style=color:#719e07>(</span>wheel<span style=color:#719e07>,</span> <span style=color:#719e07>...);</span>
</span></span><span style=display:flex><span> <span style=color:#719e07>}</span>
</span></span><span style=display:flex><span><span style=color:#719e07>}</span>
</span></span></code></pre></div><p>when <code>ExtensionLoader</code> loads <code>CarMaker</code>&rsquo;s implementation <code>RaceCarMaker</code>, the method <code>setWheelMaker</code> needs paramType <code>WheelMaker</code> which is also a SPI, It will be automatically loaded.</p><p>This brings a new question:How <code>ExtensionLoader</code> determines which implementation to use when load the injected SPI. As for this demo, when existing multi <code>WheelMaker</code> implementation, which one should the <code>ExtensionLoader</code> chooses.</p><p>Good question, we will explain it in the following chapter: SPI Auto Adaptive.</p><h3 id=spi-auto-adaptive>SPI Auto Adaptive</h3><p>The depency SPI that <code>ExtensionLoader</code> injects is an instance of <code>Adaptive</code>, the real spi implementation is known until the adaptive instance is executed.</p><p>Dubbo use URL (containing Key-Value) to pass the configuration.</p><p>The SPI method invocation has the URL parameter(Or Entity that has URL attribute)</p><p>In this way depended SPI can get configuration from URL, after config all SPI key needed, configuration information will be passed from outer by URL. URL acts as a bus when passing the config information.</p><p>Demo: two SPI <code>CarMaker</code><code>WheelMaker</code></p><p>interface looks like:</p><div class=highlight><pre tabindex=0 style=color:#93a1a1;background-color:#002b36;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-java data-lang=java><span style=display:flex><span><span style=color:#268bd2>public</span> <span style=color:#268bd2>interface</span> <span style=color:#268bd2>CarMaker</span> <span style=color:#719e07>{</span>
</span></span><span style=display:flex><span> Car <span style=color:#268bd2>makeCar</span><span style=color:#719e07>(</span>URL url<span style=color:#719e07>);</span>
</span></span><span style=display:flex><span><span style=color:#719e07>}</span>
</span></span><span style=display:flex><span>
</span></span><span style=display:flex><span><span style=color:#268bd2>public</span> <span style=color:#268bd2>interface</span> <span style=color:#268bd2>WheelMaker</span> <span style=color:#719e07>{</span>
</span></span><span style=display:flex><span> Wheel <span style=color:#268bd2>makeWheel</span><span style=color:#719e07>(</span>URL url<span style=color:#719e07>);</span>
</span></span><span style=display:flex><span><span style=color:#719e07>}</span>
</span></span></code></pre></div><p><code>CarMaker</code>&rsquo;s implementation:</p><div class=highlight><pre tabindex=0 style=color:#93a1a1;background-color:#002b36;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-java data-lang=java><span style=display:flex><span><span style=color:#268bd2>public</span> <span style=color:#268bd2>class</span> <span style=color:#268bd2>RaceCarMaker</span> <span style=color:#268bd2>implements</span> CarMaker <span style=color:#719e07>{</span>
</span></span><span style=display:flex><span> WheelMaker wheelMaker<span style=color:#719e07>;</span>
</span></span><span style=display:flex><span>
</span></span><span style=display:flex><span> <span style=color:#268bd2>public</span> <span style=color:#dc322f>void</span> <span style=color:#268bd2>setWheelMaker</span><span style=color:#719e07>(</span>WheelMaker wheelMaker<span style=color:#719e07>)</span> <span style=color:#719e07>{</span>
</span></span><span style=display:flex><span> <span style=color:#719e07>this</span><span style=color:#719e07>.</span>wheelMaker <span style=color:#719e07>=</span> wheelMaker<span style=color:#719e07>;</span>
</span></span><span style=display:flex><span> <span style=color:#719e07>}</span>
</span></span><span style=display:flex><span>
</span></span><span style=display:flex><span> <span style=color:#268bd2>public</span> Car <span style=color:#268bd2>makeCar</span><span style=color:#719e07>(</span>URL url<span style=color:#719e07>)</span> <span style=color:#719e07>{</span>
</span></span><span style=display:flex><span> <span style=color:#586e75>// ...
</span></span></span><span style=display:flex><span><span style=color:#586e75></span> Wheel wheel <span style=color:#719e07>=</span> wheelMaker<span style=color:#719e07>.</span>makeWheel<span style=color:#719e07>(</span>url<span style=color:#719e07>);</span>
</span></span><span style=display:flex><span> <span style=color:#586e75>// ...
</span></span></span><span style=display:flex><span><span style=color:#586e75></span> <span style=color:#719e07>return</span> <span style=color:#719e07>new</span> RaceCar<span style=color:#719e07>(</span>wheel<span style=color:#719e07>,</span> <span style=color:#719e07>...);</span>
</span></span><span style=display:flex><span> <span style=color:#719e07>}</span>
</span></span><span style=display:flex><span><span style=color:#719e07>}</span>
</span></span></code></pre></div><p>when execute the code above</p><div class=highlight><pre tabindex=0 style=color:#93a1a1;background-color:#002b36;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-java data-lang=java><span style=display:flex><span><span style=color:#586e75>// ...
</span></span></span><span style=display:flex><span><span style=color:#586e75></span>Wheel wheel <span style=color:#719e07>=</span> wheelMaker<span style=color:#719e07>.</span>makeWheel<span style=color:#719e07>(</span>url<span style=color:#719e07>);</span>
</span></span><span style=display:flex><span><span style=color:#586e75>// ...
</span></span></span></code></pre></div><p>, the injected <code>Adaptive</code> object determine which <code>WheelMaker</code>&rsquo;s <code>makeWheel</code> method will be executed by predefined Key. Such as <code>wheel.type</code>, key <code>url.get("wheel.type")</code> will determine <code>WheelMake</code> implementation. The logic of<code>Adaptive</code> instance of fixed, getting the predefined Key of the URL, dynamically creating the real implementation and execute it.</p><p>For Dubbo, the SPI <code>Adaptive</code> implementation in <code>ExtensionLoader</code> is dynamically created when dubbo is loading the SPI. Get the Key from URL, the Key will be provided through <code>@Adaptive</code> annotation for the interface method definition.</p><p>Below is Dubbo Transporter SPI codes:</p><div class=highlight><pre tabindex=0 style=color:#93a1a1;background-color:#002b36;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-java data-lang=java><span style=display:flex><span><span style=color:#268bd2>public</span> <span style=color:#268bd2>interface</span> <span style=color:#268bd2>Transporter</span> <span style=color:#719e07>{</span>
</span></span><span style=display:flex><span> <span style=color:#268bd2>@Adaptive</span><span style=color:#719e07>({</span><span style=color:#2aa198>&#34;server&#34;</span><span style=color:#719e07>,</span> <span style=color:#2aa198>&#34;transport&#34;</span><span style=color:#719e07>})</span>
</span></span><span style=display:flex><span> Server <span style=color:#268bd2>bind</span><span style=color:#719e07>(</span>URL url<span style=color:#719e07>,</span> ChannelHandler handler<span style=color:#719e07>)</span> <span style=color:#268bd2>throws</span> RemotingException<span style=color:#719e07>;</span>
</span></span><span style=display:flex><span>
</span></span><span style=display:flex><span> <span style=color:#268bd2>@Adaptive</span><span style=color:#719e07>({</span><span style=color:#2aa198>&#34;client&#34;</span><span style=color:#719e07>,</span> <span style=color:#2aa198>&#34;transport&#34;</span><span style=color:#719e07>})</span>
</span></span><span style=display:flex><span> Client <span style=color:#268bd2>connect</span><span style=color:#719e07>(</span>URL url<span style=color:#719e07>,</span> ChannelHandler handler<span style=color:#719e07>)</span> <span style=color:#268bd2>throws</span> RemotingException<span style=color:#719e07>;</span>
</span></span><span style=display:flex><span><span style=color:#719e07>}</span>
</span></span></code></pre></div><p>for the method bind(), Adaptive will firstly search <code>server</code> key, if no Key were founded then will search <code>transport</code> key, to determine the implementation that the proxy represent for.</p><h3 id=spi-auto-activation>SPI Auto Activation</h3><p>As for Collections SPI, such as: <code>Filter</code>, <code>InvokerListener</code>, <code>ExportListener</code>, <code>TelnetHandler</code>, <code>StatusChecker</code> etc, multi implementations can be loaded at one time. User can simplify configuration by using auto activation, Like:</p><div class=highlight><pre tabindex=0 style=color:#93a1a1;background-color:#002b36;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-java data-lang=java><span style=display:flex><span><span style=color:#719e07>import</span> org.apache.dubbo.common.extension.Activate<span style=color:#719e07>;</span>
</span></span><span style=display:flex><span><span style=color:#719e07>import</span> org.apache.dubbo.rpc.Filter<span style=color:#719e07>;</span>
</span></span><span style=display:flex><span>
</span></span><span style=display:flex><span><span style=color:#268bd2>@Activate</span> <span style=color:#586e75>// Active for any condition
</span></span></span><span style=display:flex><span><span style=color:#586e75></span><span style=color:#268bd2>public</span> <span style=color:#268bd2>class</span> <span style=color:#268bd2>XxxFilter</span> <span style=color:#268bd2>implements</span> Filter <span style=color:#719e07>{</span>
</span></span><span style=display:flex><span> <span style=color:#586e75>// ...
</span></span></span><span style=display:flex><span><span style=color:#586e75></span><span style=color:#719e07>}</span>
</span></span></code></pre></div><p>Or:</p><div class=highlight><pre tabindex=0 style=color:#93a1a1;background-color:#002b36;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-java data-lang=java><span style=display:flex><span><span style=color:#719e07>import</span> org.apache.dubbo.common.extension.Activate<span style=color:#719e07>;</span>
</span></span><span style=display:flex><span><span style=color:#719e07>import</span> org.apache.dubbo.rpc.Filter<span style=color:#719e07>;</span>
</span></span><span style=display:flex><span>
</span></span><span style=display:flex><span><span style=color:#268bd2>@Activate</span><span style=color:#719e07>(</span><span style=color:#2aa198>&#34;xxx&#34;</span><span style=color:#719e07>)</span> <span style=color:#586e75>// when configed xxx parameter and the parameter has a valid value,the SPI is activated, for example configed cache=&#34;lru&#34;, auto acitivate CacheFilter.
</span></span></span><span style=display:flex><span><span style=color:#586e75></span><span style=color:#268bd2>public</span> <span style=color:#268bd2>class</span> <span style=color:#268bd2>XxxFilter</span> <span style=color:#268bd2>implements</span> Filter <span style=color:#719e07>{</span>
</span></span><span style=display:flex><span> <span style=color:#586e75>// ...
</span></span></span><span style=display:flex><span><span style=color:#586e75></span><span style=color:#719e07>}</span>
</span></span></code></pre></div><p>Or:</p><div class=highlight><pre tabindex=0 style=color:#93a1a1;background-color:#002b36;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-java data-lang=java><span style=display:flex><span><span style=color:#719e07>import</span> org.apache.dubbo.common.extension.Activate<span style=color:#719e07>;</span>
</span></span><span style=display:flex><span><span style=color:#719e07>import</span> org.apache.dubbo.rpc.Filter<span style=color:#719e07>;</span>
</span></span><span style=display:flex><span>
</span></span><span style=display:flex><span><span style=color:#268bd2>@Activate</span><span style=color:#719e07>(</span>group <span style=color:#719e07>=</span> <span style=color:#2aa198>&#34;provider&#34;</span><span style=color:#719e07>,</span> value <span style=color:#719e07>=</span> <span style=color:#2aa198>&#34;xxx&#34;</span><span style=color:#719e07>)</span> <span style=color:#586e75>// only activate for provider, group can be &#34;provider&#34; or &#34;consumer&#34;
</span></span></span><span style=display:flex><span><span style=color:#586e75></span><span style=color:#268bd2>public</span> <span style=color:#268bd2>class</span> <span style=color:#268bd2>XxxFilter</span> <span style=color:#268bd2>implements</span> Filter <span style=color:#719e07>{</span>
</span></span><span style=display:flex><span> <span style=color:#586e75>// ...
</span></span></span><span style=display:flex><span><span style=color:#586e75></span><span style=color:#719e07>}</span>
</span></span></code></pre></div><div class=footnotes role=doc-endnotes><hr><ol><li id=fn:1><p>Note: The config file here is in you own jar file, not in dubbo release jar file, Dubbo will scan all jar files with the same filename in classpath and then merge them together&#160;<a href=#fnref:1 class=footnote-backref role=doc-backlink>&#8617;&#xfe0e;</a></p></li><li id=fn:2><p>Note: SPI will be loaded in singleton pattern(Please ensure thread safety), cached in <code>ExtensionLoader</code>&#160;<a href=#fnref:2 class=footnote-backref role=doc-backlink>&#8617;&#xfe0e;</a></p></li></ol></div><div id=pre-footer><h2>Feedback</h2><p class=feedback--prompt>Was this page helpful?</p><button class="btn btn-primary mb-4 feedback--yes">Yes</button>
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<a href=https://github.com/apache/dubbo/issues/new target=_blank><i class="fas fa-tasks fa-fw"></i> Create project issue</a></div><nav id=TableOfContents><ul><li><a href=#spi-config>SPI Config</a><ul><li><a href=#source>Source:</a></li><li><a href=#appointment>Appointment:</a></li><li><a href=#example>Example:</a></li><li><a href=#configuration-in-config-module>Configuration in config module</a></li></ul></li><li><a href=#spi-features>SPI Features</a><ul><li><a href=#spi-auto-wrap>SPI Auto Wrap</a></li><li><a href=#spi-auto-load>SPI Auto Load</a></li><li><a href=#spi-auto-adaptive>SPI Auto Adaptive</a></li><li><a href=#spi-auto-activation>SPI Auto Activation</a></li></ul></li></ul></nav></div></div></div></div><footer class="bg-dark py-5 row d-print-none footer-margin-0"><div class="container-fluid mx-sm-5"><div class=row><div class="col-6 col-sm-4 text-xs-center order-sm-2"><ul class="list-inline mb-0"><li class="list-inline-item mx-2 h3" data-toggle=tooltip data-placement=top title="Dubbo mailing list archive" aria-label="Dubbo mailing list archive"><a class=text-white target=_blank rel="noopener noreferrer" href=https://lists.apache.org/list.html?dev@dubbo.apache.org><i class="fa fa-envelope"></i></a></li></ul></div><div class="col-6 col-sm-4 text-right text-xs-center order-sm-3"><ul class="list-inline mb-0"><li class="list-inline-item mx-2 h3" data-toggle=tooltip data-placement=top title=GitHub aria-label=GitHub><a class=text-white target=_blank rel="noopener noreferrer" href=https://github.com/apache/dubbo><i class="fab fa-github"></i></a></li><li class="list-inline-item mx-2 h3" data-toggle=tooltip data-placement=top title="Subscribe to mailing list" aria-label="Subscribe to mailing list"><a class=text-white target=_blank rel="noopener noreferrer" href=mailto:dev-subscribe@dubbo.apache.org><i class="fa fa-envelope"></i></a></li></ul></div><div class="col-12 col-sm-4 text-center py-2 order-sm-2"><small class=text-white>&copy; 2023 The Apache Software Foundation. Apache and the Apache feather logo are trademarks of The Apache Software Foundation. All Rights Reserved</small></div></div></div></footer><div class="row pt-2 pb-2 footer-margin-0"><div class="container-fluid mx-sm-5"><div class=text-center id=my-footer><img style=float:left alt=apache_logo src=/imgs/apache_logo.png><ul><li><a href=https://www.apache.org>Foundation</a></li><li><a href=https://www.apache.org/licenses/>License</a></li><li><a href=https://www.apache.org/security/>Security</a></li><li><a href=https://www.apache.org/events/current-event>Events</a></li><li><a href=https://www.apache.org/foundation/sponsorship.html>Sponsorship</a></li><li><a href=https://privacy.apache.org/policies/privacy-policy-public.html>Privacy</a></li><li><a href=https://www.apache.org/foundation/thanks.html>Thanks</a></li></ul></div></div></div><script src=/js/popper.min.js integrity=sha384-ZMP7rVo3mIykV+2+9J3UJ46jBk0WLaUAdn689aCwoqbBJiSnjAK/l8WvCWPIPm49 crossorigin=anonymous></script>
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