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<a id="add-comment-menu-link" href="Protocol+Reference-zh-showComments=true&showCommentArea=true.htm#addcomment" tppabs="http://10.20.160.198/wiki/display/dubbo/Protocol+Reference-zh?showComments=true&showCommentArea=true#addcomment" class="add-comment" title="Add a Comment">
<span>Comment</span></a> </li>
</ul>
</div>
</li>
<li class="normal ajs-menu-item">
<a id="action-menu-link" class="action trigger ajs-menu-title" href="#"><span><span>Tools</span></span></a> <div class="assistive ajs-drop-down">
<ul id="action-menu-link-primary" class="section-primary first">
<li>
<a id="view-attachments-link" href="javascript:if(confirm(%27http://10.20.160.198/wiki/pages/viewpageattachments.action?pageId=6947818 \n\nThis file was not retrieved by Teleport Ultra, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?%27))window.location=%27http://10.20.160.198/wiki/pages/viewpageattachments.action?pageId=6947818%27" tppabs="http://10.20.160.198/wiki/pages/viewpageattachments.action?pageId=6947818" class="action-view-attachments" accessKey="a" title="View Attachments">
<span><u>A</u>ttachments (0)</span></a> </li>
<li>
<a id="action-view-history-link" href="javascript:if(confirm(%27http://10.20.160.198/wiki/pages/viewpreviousversions.action?pageId=6947818 \n\nThis file was not retrieved by Teleport Ultra, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?%27))window.location=%27http://10.20.160.198/wiki/pages/viewpreviousversions.action?pageId=6947818%27" tppabs="http://10.20.160.198/wiki/pages/viewpreviousversions.action?pageId=6947818" class="action-view-history" title="">
<span>Page History</span></a> </li>
<li>
<a id="action-page-permissions-link" href="javascript:if(confirm(%27http://10.20.160.198/wiki/pages/viewinfo.action?pageId=6947818 \n\nThis file was not retrieved by Teleport Ultra, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?%27))window.location=%27http://10.20.160.198/wiki/pages/viewinfo.action?pageId=6947818%27" tppabs="http://10.20.160.198/wiki/pages/viewinfo.action?pageId=6947818" class="action-page-permissions" title="Edit restrictions">
<span>Restrictions</span></a> </li>
</ul>
<ul id="action-menu-link-secondary" class="section-secondary">
<li>
<a id="view-page-info-link" href="javascript:if(confirm(%27http://10.20.160.198/wiki/pages/viewinfo.action?pageId=6947818 \n\nThis file was not retrieved by Teleport Ultra, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?%27))window.location=%27http://10.20.160.198/wiki/pages/viewinfo.action?pageId=6947818%27" tppabs="http://10.20.160.198/wiki/pages/viewinfo.action?pageId=6947818" class="action-view-info" title="">
<span>Info</span></a> </li>
<li>
<a id="link-to-page-link" href="javascript:if(confirm(%27http://10.20.160.198/wiki/pages/viewinfo.action?pageId=6947818 \n\nThis file was not retrieved by Teleport Ultra, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?%27))window.location=%27http://10.20.160.198/wiki/pages/viewinfo.action?pageId=6947818%27" tppabs="http://10.20.160.198/wiki/pages/viewinfo.action?pageId=6947818" class="" title="Link to this Page">
<span>Link to this Page&hellip;</span></a> </li>
<li>
<a id="view-in-hierarchy-link" href="javascript:if(confirm(%27http://10.20.160.198/wiki/pages/listpages-dirview.action?key=dubbo&openId=6947818 \n\nThis file was not retrieved by Teleport Ultra, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?%27))window.location=%27http://10.20.160.198/wiki/pages/listpages-dirview.action?key=dubbo&openId=6947818#selectedPageInHierarchy%27" tppabs="http://10.20.160.198/wiki/pages/listpages-dirview.action?key=dubbo&openId=6947818#selectedPageInHierarchy" class="" title="">
<span>View in Hierarchy</span></a> </li>
<li>
<a id="action-view-source-link" href="javascript:if(confirm(%27http://10.20.160.198/wiki/pages/viewpagesrc.action?pageId=6947818 \n\nThis file was not retrieved by Teleport Ultra, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?%27))window.location=%27http://10.20.160.198/wiki/pages/viewpagesrc.action?pageId=6947818%27" tppabs="http://10.20.160.198/wiki/pages/viewpagesrc.action?pageId=6947818" class="action-view-source popup-link" title="">
<span>View Wiki Markup</span></a> </li>
</ul>
</div>
</li>
</ul>
</div>
<h1 id="title-heading" class="pagetitle" style="display: none">
<a href="javascript:if(confirm(%27http://10.20.160.198/wiki/display/dubbo \n\nThis file was not retrieved by Teleport Ultra, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?%27))window.location=%27http://10.20.160.198/wiki/display/dubbo%27" tppabs="http://10.20.160.198/wiki/display/dubbo"><img class="logo space custom" src="dubbo-version=5&modificationDate=1320723683000.jpg" tppabs="http://10.20.160.198/wiki/download/attachments/6324241/dubbo?version=5&modificationDate=1320723683000" alt=""></a>
</h1>
<div id="content" class="page view">
<div id="link-to-page-fields" class="hidden parameters">
<input type="hidden" id="linkToThisPageHeading" value="Link to this Page">
<input type="hidden" id="linkToThisPageLink" value="Link">
<input type="hidden" id="linkToThisPageTinyLink" value="Tiny Link">
<input type="hidden" id="linkToThisPageWikiMarkup" value="Wiki Markup">
<input type="hidden" id="linkToThisPageClose" value="Close">
</div>
<fieldset class="hidden parameters">
<input type="hidden" title="movePageDialogViewPageTitle" value="Move Page &ndash; &#8216;Protocol Reference-zh&#8217;">
<input type="hidden" title="movePageDialogEditPageTitle" value="Set Page Location">
<input type="hidden" title="movePageDialogMoveButton" value="Move">
<input type="hidden" title="movePageDialogCancelButton" value="Cancel">
<input type="hidden" title="movePageDialogBrowsePanelTip" value="Click to select the new parent page for this page and its children.">
<input type="hidden" title="movePageDialogSearchPanel" value="Search">
<input type="hidden" title="movePageDialogHistoryPanel" value="Recently Viewed">
<input type="hidden" title="movePageDialogHistoryNoResults" value="There were no recently viewed pages found.">
<input type="hidden" title="movePageDialogLocationPanel" value="Known Location">
<input type="hidden" title="movePageDialogLocationNotFound" value="The specified page was not found.">
<input type="hidden" title="movePageDialogBrowsePanel" value="Browse">
<input type="hidden" title="movePageDialogPanelLoadErrorMsg" value="Error reading the panel content from the server.">
<input type="hidden" title="movePageDialogPanelLoadErrorTip" value="You could try reloading the page and launching the dialog again.">
<input type="hidden" title="movePageDialogPanelLoadErrorStatus" value="HTTP Status">
<input type="hidden" title="movePageDialogNoSelectionErrorMsg" value="You must make a selection in the tree before you can move the page.">
<input type="hidden" title="movePageDialogSearchError" value="Failed to retrieve search results from the server.">
<input type="hidden" title="movePageDialogSearchNoResults" value="There were no pages found containing <b>{0}</b>.">
<input type="hidden" title="movePageDialogSearchResultCount" value="Showing <b>{0}</b>-<b>{1}</b> of <b>{2}</b> pages containing <b>{3}</b>.">
<input type="hidden" title="movePageDialogMoveFailed" value="Move failed. There was a problem contacting the server.">
<input type="hidden" title="movePageDialogCannotChangeSpace" value="You cannot move this page to another space because you do not have permission to remove it from this space.">
<input type="hidden" title="pageTitle" value="Protocol Reference-zh"/>
<input type="hidden" title="parentPageTitle" value="User Guide-zh"/>
<input type="hidden" title="fromPageTitle" value=""/>
<input type="hidden" title="spaceKey" value="dubbo"/>
<input type="hidden" title="spaceName" value="Dubbo"/>
<input type="hidden" title="movePageDialogInvalidLocation" value="You cannot move a page to be underneath itself or its children."/>
<input type="hidden" title="movePageDialogOrderingTitle" value="Page Ordering"/>
<input type="hidden" title="movePageDialogBackButton" value="Back"/>
<input type="hidden" title="movePageDialogMoveAndOrderButton" value="Reorder"/>
<input type="hidden" title="movePageDialogNextButton" value="Move"/>
</fieldset>
<script type="text/x-template" title="movePageDialog">
<div class="row information">
<div class="inner">
<div class="element">
Specify the new parent page for this page and its children by space and title.
</div>
</div>
</div>
<div class="form">
<fieldset>
<legend class="assistive"><span>Change the Parent Page to a Known Page</span></legend>
<div class="row">
<label for="new-space">New space:</label>
<div class="value new-space-value">
<input id="new-space-key" name="new-space-key" type="hidden" value="dubbo">
<span class="space-input">
<input id="new-space" name="new-space" value="Dubbo" disabled="disabled">
</span>
<span class="description warning">You cannot move this page to another space because you do not have permission to remove it from this space.</span>
<div class="new-space-dropdown aui-dd-parent autocomplete"></div>
</div>
</div>
<div class="row">
<label for="new-parent-page">New parent page:</label>
<div class="value new-parent-page-value">
<span class="page-input">
<input id="new-parent-page" name="new-parent-page" value="User Guide-zh">
</span>
<span class="description">Start typing a page title to see a list of suggestions.</span>
<div class="new-parent-page-dropdown aui-dd-parent autocomplete"></div>
</div>
</div>
</fieldset>
</div>
<div class="location-info">
<div class="row">
<label>Current location:</label>
<div class="value breadcrumbs-container">
<div class="breadcrumbs-line">
<ul id="current-parent-breadcrumbs" class="breadcrumbs">
</ul>
</div>
</div>
</div>
<div class="row">
<label>New location:</label>
<div class="value breadcrumbs-container">
<div class="breadcrumbs-line">
<ul id="new-parent-breadcrumbs" class="breadcrumbs">
</ul>
</div>
</div>
</div>
</div>
</script>
<script type="text/x-template" title="movePageErrors">
<div id="move-errors" class="hidden warning"></div>
</script>
<script type="text/x-template" title="movePageBreadcrumb">
<li><a class="{2}" title="{3}" tabindex="-1"><span>{0}</span></a></li>
</script>
<script type="text/x-template" title="movePageBreadcrumbLoading">
<li class="loading"><span>Loading breadcrumbs&hellip;</span></li>
</script>
<script type="text/x-template" title="movePageBreadcrumbError">
<li class="warning last"><span>Error retrieving breadcrumbs.</span></li>
</script>
<script type="text/x-template" title="movePageNoMatchingPages">
<ol><li><span class="warning">No matching pages found.</span></li></ol>
</script>
<script type="text/x-template" title="movePageNoMatchingSpaces">
<ol><li><span class="warning">No matching spaces found.</span></li></ol>
</script>
<script type="text/x-template" title="movePageSearchPanel">
<div class="row information">
<div class="inner">
<div class="element">
Search for and select the new parent page for this page and its children.
</div>
</div>
</div>
<div id="move-page-search-container" class="row">
<div class="search-form">
<fieldset>
<legend class="assistive"><span>Search for a New Parent Page</span></legend>
<label for="move-page-search-query" class="assistive">Search keywords</label>
<input class="search-query" id="move-page-search-query">
<label for="move-page-search-space" class="assistive">Search in space</label>
<select id="move-page-search-space" class="search-space" disabled="disabled">
<option value="dubbo" selected="selected">Dubbo</option>
</select>
<input type="button" value="Search">
<div class="description warning">You cannot move this page to another space because you do not have permission to remove it from this space.</div>
</fieldset>
</div>
<div class="search-results">
</div>
</div>
</script>
<script type="text/x-template" title="movePageSearchResultsLoading">
<div class="searching">Searching…</div>
</script>
<script type="text/x-template" title="movePageHistoryPanel">
<div class="row information">
<div class="inner">
<div class="element">
Select the new parent page for this page and its children from your history.
</div>
</div>
</div>
<div id="move-page-search-container" class="row">
<div class="search-results">
</div>
</div>
</script>
<script type="text/x-template" title="movePageHistoryLoading">
<div class="searching">Loading…</div>
</script>
<script type="text/x-template" title="movePageBrowsePanel">
<div class="row information">
<div class="inner">
<div class="element">
Click to select the new parent page for this page and its children.
</div>
</div>
</div>
<div class="tree"></div>
</script>
<script type="text/x-template" title="movePagePanelLoading">
<span>Loading…</span>
</script>
<script type="text/x-template" title="movePageBrowsePanelSpace">
<ul><li id='tree-root-node-item' class='root-node-list-item'><a class='root-node' href='#'>{0}</a></li></ul>
</script>
<script type="text/x-template" title="orderingPagePanel">
<div id="orderingPlaceHolder"></div>
</script>
<script type="text/x-template" title="reorderCheckbox">
<span id="reorderRequirement"><input id="reorderCheck" type="checkbox" name="reorderFlag" title="Choose the position of this page within the list of child pages."/><label for="reorderCheck" title="Choose the position of this page within the list of child pages.">Reorder</label></span>
</script>
<script type="text/x-template" title="move-help-link">
<div class="dialog-help-link">
<a href="http://docs.atlassian.com/confluence/docs-35/Moving+a+Page" target="_blank">Help</a>
</div>
</script>
<script type="text/x-template" title="searchResultsGrid">
<table>
<thead>
<tr class="header">
<th class="search-result-title">Page Title</th>
<th class="search-result-space">Space</th>
<th class="search-result-date">Updated</th>
</tr>
</thead>
</table>
</script>
<script type="text/x-template" title="searchResultsGridCount">
<p class="search-result-count">{0}</p>
</script>
<script type="text/x-template" title="searchResultsGridRow">
<tr class="search-result">
<th class="search-result-title"><a href="{1}" class="content-type-{2}"><span>{0}</span></a></th>
<td class="search-result-space"><a class="space" href="http://10.20.160.198/wiki/display/{4}/" title="{3}">{3}</a></td>
<td class="search-result-date"><span class="date" title="{6}">{5}</span></td>
</tr>
</script>
<!-- Start restrictions section -->
<script type="text/x-template" title="page-permissions-div">
<div id="page-permissions-div">
<div id="page-permissions-editor-form">
<div id="page-permissions-error-div" class="hidden">
<a href="#" id="permissions-error-div-close">Ok</a>
<div></div>
</div>
<div id="page-permissions-type-radios" class="page-permissions-label-rows">
<div>
<input id="restrictViewRadio" type="radio" checked="checked" name="pagePermissionTypeRadio" value="view"/>
<label for="restrictViewRadio">Restrict viewing of this page</label>
<input id="restrictEditRadio" type="radio" name="pagePermissionTypeRadio" value="edit"/>
<label for="restrictEditRadio">Restrict editing of this page</label>
</div>
</div>
<div id="page-permissions-input" class="page-permissions-label-rows">
<div class="page-permissions-label">To:</div>
<div id="page-permissions-chooser-box">
<span id="page-permissions-choose-user" class="ajs-button">
<a href="#" id='userpicker-popup-link-image' onClick="var picker = window.open('http://10.20.160.198/wiki/spaces/openuserpicker.action?key=dubbo&startIndex=0&onPopupSubmit=AJS.PagePermissions.addUserPermissions', 'EntitiesPicker', 'status=yes,resizable=yes,top=100,left=200,width=700,height=680,scrollbars=yes'); picker.focus(); return false;"><img src="user_16.gif"/*tpa=http://10.20.160.198/wiki/s/en/2166/34/_/images/icons/user_16.gif*/ height=16 width=16 border=0 align="absmiddle" title="Choose users" /></a>
<a href="#" id='userpicker-popup-link-text' onClick="var picker = window.open('http://10.20.160.198/wiki/spaces/openuserpicker.action?key=dubbo&startIndex=0&onPopupSubmit=AJS.PagePermissions.addUserPermissions', 'EntitiesPicker', 'status=yes,resizable=yes,top=100,left=200,width=700,height=680,scrollbars=yes'); picker.focus(); return false;">Person...</a>
</span>
<span id="page-permissions-choose-group" class="ajs-button">
<a href="#" id='grouppicker-popup-link-image' onClick="var picker = window.open('http://10.20.160.198/wiki/spaces/opengrouppicker.action?key=dubbo&startIndex=0&actionName=dosearchgroups.action&onPopupSubmit=AJS.PagePermissions.addGroupPermissions', 'EntitiesPicker', 'status=yes,resizable=yes,top=100,left=200,width=580,height=550,scrollbars=yes'); picker.focus(); return false;"><img src="group_16.gif"/*tpa=http://10.20.160.198/wiki/s/en/2166/34/_/images/icons/group_16.gif*/ height=16 width=16 border=0 align="absmiddle" title="Choose groups" /></a>
<a href="#" id='grouppicker-popup-link-text' onClick="var picker = window.open('http://10.20.160.198/wiki/spaces/opengrouppicker.action?key=dubbo&startIndex=0&actionName=dosearchgroups.action&onPopupSubmit=AJS.PagePermissions.addGroupPermissions', 'EntitiesPicker', 'status=yes,resizable=yes,top=100,left=200,width=580,height=550,scrollbars=yes'); picker.focus(); return false;">Group...</a>
</span>
</div>
<div id="page-permissions-input-box">
<span>
<input type="text" id="page-permissions-names-input" class="input-placeholder" value="Enter user or group name" name="permissionNames" size="30" autocomplete="off"/>
</span>
<input
type="hidden"
id="page-permissions-names-hidden" /> <img height="16px" width="1px" src="spacer.gif"/*tpa=http://10.20.160.198/wiki/s/en/2166/34/_/images/border/spacer.gif*//>
<input type="button" id="add-typed-names" value="Restrict">
</div>
</div>
</div>
<div id="page-permissions-tables">
<div id="page-permissions-table-div">
<table id="page-permissions-table" class="page-permissions-table">
<tr id="page-permissions-no-views" class="marker-row">
<td colspan="3" class="page-permissions-marker-cell"><span>No view restrictions are defined for this page</span></td>
</tr>
<tr id="page-permissions-no-edits" class="marker-row">
<td colspan="3" class="page-permissions-marker-cell"><span>No edit restrictions are defined for this page</span></td>
</tr>
</table>
</div>
<div id="page-inherited-permissions-table-div" class="hidden">
<span id="page-inherited-permissions-table-desc">
<a class="icon twisty-closed">Show/Hide</a>
<a id="toggle-inherited-permissions" title="Click to see inherited restrictions">This page has restricted parent pages. It can only be seen by users who can see those parent pages.</a>
</span>
<div id="page-inherited-permissions-tables" class="hidden page-inheritance-togglable"></div>
</div>
</div>
</div>
</script>
<script type="text/x-template" title="permissions-row-template">
<tr class="permission-row">
<td class="page-permissions-marker-cell" width="20%">
<span>Viewing restricted to:</span>
</td>
<td class="permission-entity" nowrap="true" width="40%">
<span class="entity-container">
<img class="permission-entity-picture"/>
<span class="permission-entity-display-name"></span>
<span class="permission-entity-name-wrap">&nbsp;(<span class="permission-entity-name"></span>)</span>
</span>
</td>
<td class="permission-detail-column">
<div class="permission-remove-div">
<a href="#" class="remove-permission-link">Remove restriction</a>
</div>
</td>
</tr>
</script>
<script type="text/x-template" title="permissions-username-no-suggestion-template">
<ol>
<li><a href="#" class="message"><span>No matches</span></a></li>
</ol>
</script>
<script type="text/x-template" title="page-inherited-permissions-table-div-template">
<div class="page-inherited-permissions-owner-div">
<div class="page-inherited-permissions-table-desc">Viewing restrictions apply to “<a></a>”. In order to see “<span></span>”, a user must be in the following list of users and groups:</div>
<table class="page-permissions-table"></table>
</div>
</script>
<script type="text/x-template" title="page-restrictions-help-link">
<div class="dialog-help-link">
<a href="http://docs.atlassian.com/confluence/docs-35/Page+Restrictions" target="_blank">Help</a>
</div>
</script>
<!-- End restrictions section -->
<fieldset class="hidden parameters">
<input type="hidden" title="spaceKeyEncoded" value="dubbo">
<input type="hidden" title="spaceKeyDecoded" value="dubbo">
</fieldset>
<a href="#page-metadata-end" class="assistive">Skip to end of metadata</a>
<div id="page-metadata-start" class="assistive"></div>
<div class="page-metadata">
<ul>
<li class="page-metadata-item noprint">
<a id="content-metadata-page-restrictions" href="#" class="page-metadata-icon page-restrictions hidden" title="Page restrictions apply. Click the lock icon to view or edit the restriction.">
<span>Page restrictions apply</span></a> </li>
<li class="page-metadata-modification-info" style="display: none">
Added by <a href="javascript:if(confirm(%27http://10.20.160.198/wiki/display/~william.liangf \n\nThis file was not retrieved by Teleport Ultra, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?%27))window.location=%27http://10.20.160.198/wiki/display/~william.liangf%27" tppabs="http://10.20.160.198/wiki/display/~william.liangf"
class="url fn confluence-userlink" data-username="william.liangf"
>梁 飞</a>, last edited by <a href="javascript:if(confirm(%27http://10.20.160.198/wiki/display/~william.liangf \n\nThis file was not retrieved by Teleport Ultra, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?%27))window.location=%27http://10.20.160.198/wiki/display/~william.liangf%27" tppabs="http://10.20.160.198/wiki/display/~william.liangf"
class="url fn confluence-userlink" data-username="william.liangf"
>梁 飞</a> on 六月 14, 2012
<span class="noprint">&nbsp;(<a id="view-change-link" href="javascript:if(confirm(%27http://10.20.160.198/wiki/pages/diffpages.action?pageId=6947818&originalId=7671363 \n\nThis file was not retrieved by Teleport Ultra, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?%27))window.location=%27http://10.20.160.198/wiki/pages/diffpages.action?pageId=6947818&originalId=7671363%27" tppabs="http://10.20.160.198/wiki/pages/diffpages.action?pageId=6947818&originalId=7671363">view change</a>)</span>
</li>
</ul>
<div id="version-comment" class="noteMacro" style="display: none;">
<strong>Comment:</strong>
<br />
</div>
</div>
<a href="#page-metadata-start" class="assistive">Go to start of metadata</a>
<div id="page-metadata-end" class="assistive"></div>
<fieldset class="hidden parameters">
<input type="hidden" title="browsePageTreeMode" value="view">
<input type="hidden" title="parentPageId" value="6948813">
</fieldset>
<div class="wiki-content">
<!-- wiki content -->
<h2><a name="ProtocolReference-zh-%E5%8D%8F%E8%AE%AE%E5%8F%82%E8%80%83%E6%89%8B%E5%86%8C"></a>协议参考手册</h2>
<p>(<a href="Protocol+Reference-zh.htm" tppabs="http://10.20.160.198/wiki/display/dubbo/Protocol+Reference-zh" title="Protocol Reference-zh">+</a>) (<a href="#ProtocolReference-zh-%E5%8D%8F%E8%AE%AE%E5%8F%82%E8%80%83%E6%89%8B%E5%86%8C">#</a>)</p>
<div class='panelMacro'><table class='tipMacro'><colgroup><col width='24'><col></colgroup><tr><td valign='top'><img src="check.gif" tppabs="http://10.20.160.198/wiki/images/icons/emoticons/check.gif" width="16" height="16" align="absmiddle" alt="" border="0"></td><td>推荐使用Dubbo协议</td></tr></table></div>
<div class='panelMacro'><table class='tipMacro'><colgroup><col width='24'><col></colgroup><tr><td valign='top'><img src="check.gif" tppabs="http://10.20.160.198/wiki/images/icons/emoticons/check.gif" width="16" height="16" align="absmiddle" alt="" border="0"></td><td><b>性能测试报告</b><br />各协议的性能情况，请参见：<a href="#ProtocolReference-zh-%E6%80%A7%E8%83%BD%E6%B5%8B%E8%AF%95%E6%8A%A5%E5%91%8A">性能测试报告</a> (<a href="Performance+Test+Report-zh.htm" tppabs="http://10.20.160.198/wiki/display/dubbo/Performance+Test+Report-zh" title="Performance Test Report-zh">+</a>)</td></tr></table></div>
<h3><a name="ProtocolReference-zh-dubbo%3A%2F%2F"></a>dubbo://</h3>
<p>(<a href="Dubbo+Protocol-zh.htm" tppabs="http://10.20.160.198/wiki/display/dubbo/Dubbo+Protocol-zh" title="Dubbo Protocol-zh">+</a>) (<a href="#ProtocolReference-zh-dubbo%253A%252F%252F">#</a>)</p>
<div class='panelMacro'><table class='tipMacro'><colgroup><col width='24'><col></colgroup><tr><td valign='top'><img src="check.gif" tppabs="http://10.20.160.198/wiki/images/icons/emoticons/check.gif" width="16" height="16" align="absmiddle" alt="" border="0"></td><td>Dubbo缺省协议采用单一长连接和NIO异步通讯，适合于小数据量大并发的服务调用，以及服务消费者机器数远大于服务提供者机器数的情况。</td></tr></table></div>
<div class='panelMacro'><table class='noteMacro'><colgroup><col width='24'><col></colgroup><tr><td valign='top'><img src="warning-3.gif" tppabs="http://10.20.160.198/wiki/images/icons/emoticons/warning.gif" width="16" height="16" align="absmiddle" alt="" border="0"></td><td>Dubbo缺省协议不适合传送大数据量的服务，比如传文件，传视频等，除非请求量很低。</td></tr></table></div>
<div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent">
<script type="syntaxhighlighter" class="theme: Confluence; brush: xml; gutter: false"><![CDATA[&lt;dubbo:protocol name="dubbo" port="20880" /&gt;]]></script>
</div></div>
<p>Set default protocol:</p>
<div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent">
<script type="syntaxhighlighter" class="theme: Confluence; brush: xml; gutter: false"><![CDATA[&lt;dubbo:provider protocol="dubbo" /&gt;]]></script>
</div></div>
<p>Set service protocol:</p>
<div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent">
<script type="syntaxhighlighter" class="theme: Confluence; brush: xml; gutter: false"><![CDATA[&lt;dubbo:service protocol="dubbo" /&gt;]]></script>
</div></div>
<p>Multi port:</p>
<div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent">
<script type="syntaxhighlighter" class="theme: Confluence; brush: xml; gutter: false"><![CDATA[&lt;dubbo:protocol id="dubbo1" name="dubbo" port="20880" /&gt;
&lt;dubbo:protocol id="dubbo2" name="dubbo" port="20881" /&gt;]]></script>
</div></div>
<p>Dubbo protocol options:</p>
<div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent">
<script type="syntaxhighlighter" class="theme: Confluence; brush: xml; gutter: false"><![CDATA[&lt;dubbo:protocol name=“dubbo” port=“9090” server=“netty” client=“netty” codec=“dubbo” serialization=“hessian2” charset=“UTF-8” threadpool=“fixed” threads=“100” queues=“0” iothreads=“9” buffer=“8192” accepts=“1000” payload=“8388608” /&gt;]]></script>
</div></div>
<p><span class="image-wrap" style=""><img src="dubbo-protocol.jpg-version=1&modificationDate=1331068241000.jpg" tppabs="http://10.20.160.198/wiki/download/attachments/6949458/dubbo-protocol.jpg?version=1&modificationDate=1331068241000" style="border: 0px solid black" /></span></p>
<ul>
<li>Transporter
<ul>
<li>mina, netty, grizzy</li>
</ul>
</li>
<li>Serialization
<ul>
<li>dubbo, hessian2, java, json</li>
</ul>
</li>
<li>Dispatcher
<ul>
<li>all, direct, message, execution, connection</li>
</ul>
</li>
<li>ThreadPool
<ul>
<li>fixed, cached</li>
</ul>
</li>
</ul>
<div class='panelMacro'><table class='tipMacro'><colgroup><col width='24'><col></colgroup><tr><td valign='top'><img src="check.gif" tppabs="http://10.20.160.198/wiki/images/icons/emoticons/check.gif" width="16" height="16" align="absmiddle" alt="" border="0"></td><td>Dubbo协议缺省每服务每提供者每消费者使用单一长连接，如果数据量较大，可以使用多个连接。</td></tr></table></div>
<div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent">
<script type="syntaxhighlighter" class="theme: Confluence; brush: xml; gutter: false"><![CDATA[&lt;dubbo:protocol name="dubbo" connections="2" /&gt;]]></script>
</div></div>
<ul>
<li>&lt;dubbo:service connections=”0”&gt;或&lt;dubbo:reference connections=”0”&gt;表示该服务使用JVM共享长连接。(缺省)</li>
<li>&lt;dubbo:service connections=”1”&gt;或&lt;dubbo:reference connections=”1”&gt;表示该服务使用独立长连接。</li>
<li>&lt;dubbo:service connections=”2”&gt;或&lt;dubbo:reference connections=”2”&gt;表示该服务使用独立两条长连接。</li>
</ul>
<div class='panelMacro'><table class='tipMacro'><colgroup><col width='24'><col></colgroup><tr><td valign='top'><img src="check.gif" tppabs="http://10.20.160.198/wiki/images/icons/emoticons/check.gif" width="16" height="16" align="absmiddle" alt="" border="0"></td><td>为防止被大量连接撑挂，可在服务提供方限制大接收连接数，以实现服务提供方自我保护。</td></tr></table></div>
<div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent">
<script type="syntaxhighlighter" class="theme: Confluence; brush: xml; gutter: false"><![CDATA[&lt;dubbo:protocol name="dubbo" accepts="1000" /&gt;]]></script>
</div></div>
<p>缺省协议，使用基于mina1.1.7+hessian3.2.1的tbremoting交互。</p>
<ul>
<li>连接个数：单连接</li>
<li>连接方式：长连接</li>
<li>传输协议：TCP</li>
<li>传输方式：NIO异步传输</li>
<li>序列化：Hessian二进制序列化</li>
<li>适用范围：传入传出参数数据包较小（建议小于100K），消费者比提供者个数多，单一消费者无法压满提供者，<font color="red">尽量不要用dubbo协议传输大文件或超大字符串</font>。</li>
<li>适用场景：常规远程服务方法调用</li>
</ul>
<p>为什么要消费者比提供者个数多：<br/>
因dubbo协议采用单一长连接，<br/>
假设网络为千兆网卡(1024Mbit=128MByte)，<br/>
根据测试经验数据每条连接最多只能压满7MByte(不同的环境可能不一样，供参考)，<br/>
理论上1个服务提供者需要20个服务消费者才能压满网卡。</p>
<p>为什么不能传大包：<br/>
因dubbo协议采用单一长连接，<br/>
如果每次请求的数据包大小为500KByte，假设网络为千兆网卡(1024Mbit=128MByte)，每条连接最大7MByte(不同的环境可能不一样，供参考)，<br/>
单个服务提供者的TPS(每秒处理事务数)最大为：128MByte / 500KByte = 262。<br/>
单个消费者调用单个服务提供者的TPS(每秒处理事务数)最大为：7MByte / 500KByte = 14。<br/>
如果能接受，可以考虑使用，否则网络将成为瓶颈。</p>
<p>为什么采用异步单一长连接：<br/>
因为服务的现状大都是服务提供者少，通常只有几台机器，<br/>
而服务的消费者多，可能整个网站都在访问该服务，<br/>
比如Morgan的提供者只有6台提供者，却有上百台消费者，每天有1.5亿次调用，<br/>
如果采用常规的hessian服务，服务提供者很容易就被压跨，<br/>
通过单一连接，保证单一消费者不会压死提供者，<br/>
长连接，减少连接握手验证等，<br/>
并使用异步IO，复用线程池，防止C10K问题。</p>
<p>(1) 约束：</p>
<ul>
<li>参数及返回值需实现Serializable接口</li>
<li>参数及返回值不能自定义实现List, Map, Number, Date, Calendar等接口，只能用JDK自带的实现，因为hessian会做特殊处理，自定义实现类中的属性值都会丢失。()</li>
<li>Hessian序列化，只传成员属性值和值的类型，不传方法或静态变量，兼容情况：(由吴亚军提供)
<div class='table-wrap'>
<table class='confluenceTable'><tbody>
<tr>
<th class='confluenceTh'> 数据通讯 </th>
<th class='confluenceTh'> 情况 </th>
<th class='confluenceTh'> 结果 </th>
</tr>
<tr>
<td class='confluenceTd'> A-&gt;B </td>
<td class='confluenceTd'> 类A多一种 属性（或者说类B少一种 属性） </td>
<td class='confluenceTd'> 不抛异常，A多的那 个属性的值，B没有， 其他正常 </td>
</tr>
<tr>
<td class='confluenceTd'> A-&gt;B </td>
<td class='confluenceTd'> 枚举A多一种 枚举（或者说B少一种 枚举），A使用多 出来的枚举进行传输 </td>
<td class='confluenceTd'> 抛异常 </td>
</tr>
<tr>
<td class='confluenceTd'> A-&gt;B </td>
<td class='confluenceTd'> 枚举A多一种 枚举（或者说B少一种 枚举），A不使用 多出来的枚举进行传输 </td>
<td class='confluenceTd'> 不抛异常，B正常接 收数据 </td>
</tr>
<tr>
<td class='confluenceTd'> A-&gt;B </td>
<td class='confluenceTd'> A和B的属性 名相同，但类型不相同 </td>
<td class='confluenceTd'> 抛异常 </td>
</tr>
<tr>
<td class='confluenceTd'> A-&gt;B </td>
<td class='confluenceTd'> serialId 不相同 </td>
<td class='confluenceTd'> 正常传输 </td>
</tr>
</tbody></table>
</div>
<p>总结：会抛异常的情况：枚 举值一边多一种，一边少一种，正好使用了差别的那种，或者属性名相同，类型不同</p></li>
</ul>
<p>接口增加方法，对客户端无影响，如果该方法不是客户端需要的，客户端不需要重新部署；<br/>
输入参数和结果集中增加属性，对客户端无影响，如果客户端并不需要新属性，不用重新<br/>
部署；<br/>
输入参数和结果集属性名变化，对客户端序列化无影响，但是如果客户端不重新部署，不管输入还是输出，属性名变化的属性值是获取不到的。<br/>
总结：服务器端和客户端对领域对象并不需要完全一致，而是按照最大匹配原则。</p>
<p>(2) 配置：<br/>
dubbo.properties：</p>
<div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent">
<script type="syntaxhighlighter" class="theme: Confluence; brush: java; gutter: false"><![CDATA[dubbo.service.protocol=dubbo]]></script>
</div></div>
<h3><a name="ProtocolReference-zh-rmi%3A%2F%2F"></a>rmi://</h3>
<p>(<a href="Rmi+Protocol-zh.htm" tppabs="http://10.20.160.198/wiki/display/dubbo/Rmi+Protocol-zh" title="Rmi Protocol-zh">+</a>) (<a href="#ProtocolReference-zh-rmi%253A%252F%252F">#</a>)</p>
<div class='panelMacro'><table class='tipMacro'><colgroup><col width='24'><col></colgroup><tr><td valign='top'><img src="check.gif" tppabs="http://10.20.160.198/wiki/images/icons/emoticons/check.gif" width="16" height="16" align="absmiddle" alt="" border="0"></td><td>RMI协议采用JDK标准的java.rmi.*实现，采用阻塞式短连接和JDK标准序列化方式。</td></tr></table></div>
<div class='panelMacro'><table class='warningMacro'><colgroup><col width='24'><col></colgroup>
<tr>
<td valign='top'><img src="warning-3.gif" tppabs="http://10.20.160.198/wiki/images/icons/emoticons/warning.gif" width="16" height="16" align="absmiddle" alt="" border="0"></td>
<td>如果正在使用RMI提供服务给外部访问（公司内网环境应该不会有攻击风险），同时应用里依赖了老的common-collections包（dubbo不会依赖这个包，请排查自己的应用有没有使用）的情况下，存在反序列化安全风险。</br>
请检查应用：</br>
将commons-collections3 请升级到3.2.2版本：https://commons.apache.org/proper/commons-collections/release_3_2_2.html</br>
将commons-collections4 请升级到4.1版本：https://commons.apache.org/proper/commons-collections/release_4_1.html</br>
新版本的commons-collections解决了该问题</br>
</td>
</tr>
</table></div>
<ul>
<li>如果服务接口继承了java.rmi.Remote接口，可以和原生RMI互操作，即：
<ul>
<li>提供者用Dubbo的RMI协议暴露服务，消费者直接用标准RMI接口调用，</li>
<li>或者提供方用标准RMI暴露服务，消费方用Dubbo的RMI协议调用。</li>
</ul>
</li>
<li>如果服务接口<font color="red">没有</font>继承java.rmi.Remote接口，
<ul>
<li>缺省Dubbo将自动生成一个com.xxx.XxxService$Remote的接口，并继承java.rmi.Remote接口，并以此接口暴露服务，</li>
<li>但如果设置了&lt;dubbo:protocol name="rmi" codec="spring" /&gt;，将不生成$Remote接口，而使用Spring的RmiInvocationHandler接口暴露服务，和Spring兼容。</li>
</ul>
</li>
</ul>
<p>Define rmi protocol:</p>
<div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent">
<script type="syntaxhighlighter" class="theme: Confluence; brush: xml; gutter: false"><![CDATA[&lt;dubbo:protocol name="rmi" port="1099" /&gt;]]></script>
</div></div>
<p>Set default protocol:</p>
<div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent">
<script type="syntaxhighlighter" class="theme: Confluence; brush: xml; gutter: false"><![CDATA[&lt;dubbo:provider protocol="rmi" /&gt;]]></script>
</div></div>
<p>Set service protocol:</p>
<div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent">
<script type="syntaxhighlighter" class="theme: Confluence; brush: xml; gutter: false"><![CDATA[&lt;dubbo:service protocol="rmi" /&gt;]]></script>
</div></div>
<p>Multi port:</p>
<div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent">
<script type="syntaxhighlighter" class="theme: Confluence; brush: xml; gutter: false"><![CDATA[&lt;dubbo:protocol id="rmi1" name="rmi" port="1099" /&gt;
&lt;dubbo:protocol id="rmi2" name="rmi" port="2099" /&gt;
&lt;dubbo:service protocol="rmi1" /&gt;]]></script>
</div></div>
<p>Spring compatible:</p>
<div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent">
<script type="syntaxhighlighter" class="theme: Confluence; brush: xml; gutter: false"><![CDATA[&lt;dubbo:protocol name="rmi" codec="spring" /&gt;]]></script>
</div></div>
<p>Java标准的远程调用协议。</p>
<ul>
<li>连接个数：多连接</li>
<li>连接方式：短连接</li>
<li>传输协议：TCP</li>
<li>传输方式：同步传输</li>
<li>序列化：Java标准二进制序列化</li>
<li>适用范围：传入传出参数数据包大小混合，消费者与提供者个数差不多，可传文件。</li>
<li>适用场景：常规远程服务方法调用，与原生RMI服务互操作</li>
</ul>
<p>(1) 约束：</p>
<ul>
<li>参数及返回值需实现Serializable接口</li>
<li>dubbo配置中的超时时间对rmi无效，需使用java启动参数设置：-Dsun.rmi.transport.tcp.responseTimeout=3000，参见下面的RMI配置。</li>
</ul>
<p>(2) 配置：<br/>
dubbo.properties：</p>
<div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent">
<script type="syntaxhighlighter" class="theme: Confluence; brush: java; gutter: false"><![CDATA[dubbo.service.protocol=rmi]]></script>
</div></div>
<p>(3) RMI配置：</p>
<div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent">
<script type="syntaxhighlighter" class="theme: Confluence; brush: java; gutter: false"><![CDATA[java -Dsun.rmi.transport.tcp.responseTimeout=3000]]></script>
</div></div>
<p>更多RMI优化参数请查看：<br/>
<a href="javascript:if(confirm(%27http://download.oracle.com/docs/cd/E17409_01/javase/6/docs/technotes/guides/rmi/sunrmiproperties.html \n\nThis file was not retrieved by Teleport Ultra, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?%27))window.location=%27http://download.oracle.com/docs/cd/E17409_01/javase/6/docs/technotes/guides/rmi/sunrmiproperties.html%27" tppabs="http://download.oracle.com/docs/cd/E17409_01/javase/6/docs/technotes/guides/rmi/sunrmiproperties.html" class="external-link" rel="nofollow">http://download.oracle.com/docs/cd/E17409_01/javase/6/docs/technotes/guides/rmi/sunrmiproperties.html</a></p>
<h3><a name="ProtocolReference-zh-hessian%3A%2F%2F"></a>hessian://</h3>
<p>(<a href="Hessian+Protocol-zh.htm" tppabs="http://10.20.160.198/wiki/display/dubbo/Hessian+Protocol-zh" title="Hessian Protocol-zh">+</a>) (<a href="#ProtocolReference-zh-hessian%253A%252F%252F">#</a>)</p>
<div class='panelMacro'><table class='tipMacro'><colgroup><col width='24'><col></colgroup><tr><td valign='top'><img src="check.gif" tppabs="http://10.20.160.198/wiki/images/icons/emoticons/check.gif" width="16" height="16" align="absmiddle" alt="" border="0"></td><td>Hessian协议用于集成Hessian的服务，Hessian底层采用Http通讯，采用Servlet暴露服务，Dubbo缺省内嵌Jetty作为服务器实现。</td></tr></table></div>
<div class='panelMacro'><table class='tipMacro'><colgroup><col width='24'><col></colgroup><tr><td valign='top'><img src="check.gif" tppabs="http://10.20.160.198/wiki/images/icons/emoticons/check.gif" width="16" height="16" align="absmiddle" alt="" border="0"></td><td>Hessian是Caucho开源的一个RPC框架：<a href="javascript:if(confirm(%27http://hessian.caucho.com/ \n\nThis file was not retrieved by Teleport Ultra, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?%27))window.location=%27http://hessian.caucho.com/%27" tppabs="http://hessian.caucho.com/" class="external-link" rel="nofollow">http://hessian.caucho.com</a>，其通讯效率高于WebService和Java自带的序列化。</td></tr></table></div>
<p>依赖：</p>
<div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent">
<script type="syntaxhighlighter" class="theme: Confluence; brush: xml; gutter: false"><![CDATA[&lt;dependency&gt;
&lt;groupId&gt;com.caucho&lt;/groupId&gt;
&lt;artifactId&gt;hessian&lt;/artifactId&gt;
&lt;version&gt;4.0.7&lt;/version&gt;
&lt;/dependency&gt;]]></script>
</div></div>
<p>可以和原生Hessian服务互操作，即：</p>
<ul>
<li>提供者用Dubbo的Hessian协议暴露服务，消费者直接用标准Hessian接口调用，</li>
<li>或者提供方用标准Hessian暴露服务，消费方用Dubbo的Hessian协议调用。</li>
</ul>
<p>基于Hessian的远程调用协议。</p>
<ul>
<li>连接个数：多连接</li>
<li>连接方式：短连接</li>
<li>传输协议：HTTP</li>
<li>传输方式：同步传输</li>
<li>序列化：Hessian二进制序列化</li>
<li>适用范围：传入传出参数数据包较大，提供者比消费者个数多，提供者压力较大，可传文件。</li>
<li>适用场景：页面传输，文件传输，或与原生hessian服务互操作</li>
</ul>
<p>(1) 约束：</p>
<ul>
<li>参数及返回值需实现Serializable接口</li>
<li>参数及返回值不能自定义实现List, Map, Number, Date, Calendar等接口，只能用JDK自带的实现，因为hessian会做特殊处理，自定义实现类中的属性值都会丢失。</li>
</ul>
<p>(2) 配置：<br/>
Define hessian protocol:</p>
<div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent">
<script type="syntaxhighlighter" class="theme: Confluence; brush: xml; gutter: false"><![CDATA[&lt;dubbo:protocol name="hessian" port="8080" server="jetty" /&gt;]]></script>
</div></div>
<p>Set default protocol:</p>
<div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent">
<script type="syntaxhighlighter" class="theme: Confluence; brush: xml; gutter: false"><![CDATA[&lt;dubbo:provider protocol="hessian" /&gt;]]></script>
</div></div>
<p>Set service protocol:</p>
<div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent">
<script type="syntaxhighlighter" class="theme: Confluence; brush: xml; gutter: false"><![CDATA[&lt;dubbo:service protocol="hessian" /&gt;]]></script>
</div></div>
<p>Multi port:</p>
<div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent">
<script type="syntaxhighlighter" class="theme: Confluence; brush: xml; gutter: false"><![CDATA[&lt;dubbo:protocol id="hessian1" name="hessian" port="8080" /&gt;
&lt;dubbo:protocol id="hessian2" name="hessian" port="8081" /&gt;]]></script>
</div></div>
<p>Directly provider:</p>
<div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent">
<script type="syntaxhighlighter" class="theme: Confluence; brush: xml; gutter: false"><![CDATA[&lt;dubbo:reference id="helloService" interface="HelloWorld" url="hessian://10.20.153.10:8080/helloWorld" /&gt;]]></script>
</div></div>
<h4><a name="ProtocolReference-zh-JettyServer%3A%28default%29"></a>h4. Jetty Server: (default)</h4>
<div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent">
<script type="syntaxhighlighter" class="theme: Confluence; brush: xml; gutter: false"><![CDATA[&lt;dubbo:protocol ... server="jetty" /&gt;]]></script>
</div></div>
<h4><a name="ProtocolReference-zh-ServletBridgeServer%3A%28%29"></a>h4. Servlet Bridge Server: (<font color="brown">recommend</font>)</h4>
<div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent">
<script type="syntaxhighlighter" class="theme: Confluence; brush: xml; gutter: false"><![CDATA[&lt;dubbo:protocol ... server="servlet" /&gt;]]></script>
</div></div>
<p>web.xml：</p>
<div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent">
<script type="syntaxhighlighter" class="theme: Confluence; brush: xml; gutter: false"><![CDATA[&lt;servlet&gt;
&lt;servlet-name&gt;dubbo&lt;/servlet-name&gt;
&lt;servlet-class&gt;com.alibaba.dubbo.remoting.http.servlet.DispatcherServlet&lt;/servlet-class&gt;
&lt;load-on-startup&gt;1&lt;/load-on-startup&gt;
&lt;/servlet&gt;
&lt;servlet-mapping&gt;
&lt;servlet-name&gt;dubbo&lt;/servlet-name&gt;
&lt;url-pattern&gt;/*&lt;/url-pattern&gt;
&lt;/servlet-mapping&gt;]]></script>
</div></div>
<p>注意，如果使用servlet派发请求：</p>
<ul>
<li>协议的端口&lt;dubbo:protocol port="8080" /&gt;必须与servlet容器的端口相同，</li>
<li>协议的上下文路径&lt;dubbo:protocol contextpath="foo" /&gt;必须与servlet应用的上下文路径相同。</li>
</ul>
<h3><a name="ProtocolReference-zh-http%3A%2F%2F"></a>http://</h3>
<p>(<a href="Http+Protocol-zh.htm" tppabs="http://10.20.160.198/wiki/display/dubbo/Http+Protocol-zh" title="Http Protocol-zh">+</a>) (<a href="#ProtocolReference-zh-http%253A%252F%252F">#</a>)</p>
<div class='panelMacro'><table class='tipMacro'><colgroup><col width='24'><col></colgroup><tr><td valign='top'><img src="check.gif" tppabs="http://10.20.160.198/wiki/images/icons/emoticons/check.gif" width="16" height="16" align="absmiddle" alt="" border="0"></td><td>采用Spring的HttpInvoker实现</td></tr></table></div>
<div class='panelMacro'><table class='noteMacro'><colgroup><col width='24'><col></colgroup><tr><td valign='top'><img src="warning-3.gif" tppabs="http://10.20.160.198/wiki/images/icons/emoticons/warning.gif" width="16" height="16" align="absmiddle" alt="" border="0"></td><td>2.3.0以上版本支持</td></tr></table></div>
<p>基于http表单的远程调用协议。参见：<span class="error">&#91;HTTP协议使用说明&#93;</span></p>
<ul>
<li>连接个数：多连接</li>
<li>连接方式：短连接</li>
<li>传输协议：HTTP</li>
<li>传输方式：同步传输</li>
<li>序列化：表单序列化</li>
<li>适用范围：传入传出参数数据包大小混合，提供者比消费者个数多，可用浏览器查看，可用表单或URL传入参数，暂不支持传文件。</li>
<li>适用场景：需同时给应用程序和浏览器JS使用的服务。</li>
</ul>
<p>(1) 约束：</p>
<ul>
<li>参数及返回值需符合Bean规范</li>
</ul>
<p>(2) 配置：<br/>
dubbo.xml：</p>
<div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent">
<script type="syntaxhighlighter" class="theme: Confluence; brush: java; gutter: false"><![CDATA[&lt;dubbo:protocol name="http" port="8080" /&gt;]]></script>
</div></div>
<h4><a name="ProtocolReference-zh-JettyServer%3A%28default%29"></a>h4. Jetty Server: (default)</h4>
<div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent">
<script type="syntaxhighlighter" class="theme: Confluence; brush: xml; gutter: false"><![CDATA[&lt;dubbo:protocol ... server="jetty" /&gt;]]></script>
</div></div>
<h4><a name="ProtocolReference-zh-ServletBridgeServer%3A%28%29"></a>h4. Servlet Bridge Server: (<font color="brown">recommend</font>)</h4>
<div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent">
<script type="syntaxhighlighter" class="theme: Confluence; brush: xml; gutter: false"><![CDATA[&lt;dubbo:protocol ... server="servlet" /&gt;]]></script>
</div></div>
<p>web.xml：</p>
<div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent">
<script type="syntaxhighlighter" class="theme: Confluence; brush: xml; gutter: false"><![CDATA[&lt;servlet&gt;
&lt;servlet-name&gt;dubbo&lt;/servlet-name&gt;
&lt;servlet-class&gt;com.alibaba.dubbo.remoting.http.servlet.DispatcherServlet&lt;/servlet-class&gt;
&lt;load-on-startup&gt;1&lt;/load-on-startup&gt;
&lt;/servlet&gt;
&lt;servlet-mapping&gt;
&lt;servlet-name&gt;dubbo&lt;/servlet-name&gt;
&lt;url-pattern&gt;/*&lt;/url-pattern&gt;
&lt;/servlet-mapping&gt;]]></script>
</div></div>
<p>注意，如果使用servlet派发请求：</p>
<ul>
<li>协议的端口&lt;dubbo:protocol port="8080" /&gt;必须与servlet容器的端口相同，</li>
<li>协议的上下文路径&lt;dubbo:protocol contextpath="foo" /&gt;必须与servlet应用的上下文路径相同。</li>
</ul>
<h3><a name="ProtocolReference-zh-webservice%3A%2F%2F"></a>webservice://</h3>
<p>(<a href="WebService+Protocol.htm" tppabs="http://10.20.160.198/wiki/display/dubbo/WebService+Protocol" title="WebService Protocol">+</a>) (<a href="#ProtocolReference-zh-webservice%253A%252F%252F">#</a>)</p>
<div class='panelMacro'><table class='noteMacro'><colgroup><col width='24'><col></colgroup><tr><td valign='top'><img src="warning-3.gif" tppabs="http://10.20.160.198/wiki/images/icons/emoticons/warning.gif" width="16" height="16" align="absmiddle" alt="" border="0"></td><td>2.3.0以上版本支持。</td></tr></table></div>
<div class='panelMacro'><table class='tipMacro'><colgroup><col width='24'><col></colgroup><tr><td valign='top'><img src="check.gif" tppabs="http://10.20.160.198/wiki/images/icons/emoticons/check.gif" width="16" height="16" align="absmiddle" alt="" border="0"></td><td>基于CXF的<a href="javascript:if(confirm(%27http://search.maven.org/ \n\nThis file was not retrieved by Teleport Ultra, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?%27))window.location=%27http://search.maven.org/#search%7Cga%7C1%7Ca%3A%22cxf-rt-frontend-simple%22%27" tppabs="http://search.maven.org/#search%7Cga%7C1%7Ca%3A%22cxf-rt-frontend-simple%22" class="external-link" rel="nofollow">frontend-simple</a>和<a href="javascript:if(confirm(%27http://search.maven.org/ \n\nThis file was not retrieved by Teleport Ultra, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?%27))window.location=%27http://search.maven.org/#search%7Cga%7C1%7Ca%3A%22cxf-rt-transports-http%22%27" tppabs="http://search.maven.org/#search%7Cga%7C1%7Ca%3A%22cxf-rt-transports-http%22" class="external-link" rel="nofollow">transports-http</a>实现。</td></tr></table></div>
<div class='panelMacro'><table class='tipMacro'><colgroup><col width='24'><col></colgroup><tr><td valign='top'><img src="check.gif" tppabs="http://10.20.160.198/wiki/images/icons/emoticons/check.gif" width="16" height="16" align="absmiddle" alt="" border="0"></td><td>CXF是Apache开源的一个RPC框架：<a href="javascript:if(confirm(%27http://cxf.apache.org/ \n\nThis file was not retrieved by Teleport Ultra, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?%27))window.location=%27http://cxf.apache.org/%27" tppabs="http://cxf.apache.org/" class="external-link" rel="nofollow">http://cxf.apache.org</a>，由Xfire和Celtix合并而来 。</td></tr></table></div>
<p>依赖：</p>
<div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent">
<script type="syntaxhighlighter" class="theme: Confluence; brush: xml; gutter: false"><![CDATA[&lt;dependency&gt;
&lt;groupId&gt;org.apache.cxf&lt;/groupId&gt;
&lt;artifactId&gt;cxf-rt-frontend-simple&lt;/artifactId&gt;
&lt;version&gt;2.6.1&lt;/version&gt;
&lt;/dependency&gt;
&lt;dependency&gt;
&lt;groupId&gt;org.apache.cxf&lt;/groupId&gt;
&lt;artifactId&gt;cxf-rt-transports-http&lt;/artifactId&gt;
&lt;version&gt;2.6.1&lt;/version&gt;
&lt;/dependency&gt;]]></script>
</div></div>
<p>可以和原生WebService服务互操作，即：</p>
<ul>
<li>提供者用Dubbo的WebService协议暴露服务，消费者直接用标准WebService接口调用，</li>
<li>或者提供方用标准WebService暴露服务，消费方用Dubbo的WebService协议调用。</li>
</ul>
<p>基于WebService的远程调用协议。</p>
<ul>
<li>连接个数：多连接</li>
<li>连接方式：短连接</li>
<li>传输协议：HTTP</li>
<li>传输方式：同步传输</li>
<li>序列化：SOAP文本序列化</li>
<li>适用场景：系统集成，跨语言调用。</li>
</ul>
<p>(1) 约束：</p>
<ul>
<li>参数及返回值需实现Serializable接口</li>
<li>参数尽量使用基本类型和POJO。</li>
</ul>
<p>(2) 配置：<br/>
Define hessian protocol:</p>
<div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent">
<script type="syntaxhighlighter" class="theme: Confluence; brush: xml; gutter: false"><![CDATA[&lt;dubbo:protocol name="webservice" port="8080" server="jetty" /&gt;]]></script>
</div></div>
<p>Set default protocol:</p>
<div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent">
<script type="syntaxhighlighter" class="theme: Confluence; brush: xml; gutter: false"><![CDATA[&lt;dubbo:provider protocol="webservice" /&gt;]]></script>
</div></div>
<p>Set service protocol:</p>
<div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent">
<script type="syntaxhighlighter" class="theme: Confluence; brush: xml; gutter: false"><![CDATA[&lt;dubbo:service protocol="webservice" /&gt;]]></script>
</div></div>
<p>Multi port:</p>
<div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent">
<script type="syntaxhighlighter" class="theme: Confluence; brush: xml; gutter: false"><![CDATA[&lt;dubbo:protocol id="webservice1" name="webservice" port="8080" /&gt;
&lt;dubbo:protocol id="webservice2" name="webservice" port="8081" /&gt;]]></script>
</div></div>
<p>Directly provider:</p>
<div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent">
<script type="syntaxhighlighter" class="theme: Confluence; brush: xml; gutter: false"><![CDATA[&lt;dubbo:reference id="helloService" interface="HelloWorld" url="webservice://10.20.153.10:8080/com.foo.HelloWorld" /&gt;]]></script>
</div></div>
<p>WSDL:</p>
<div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent">
<script type="syntaxhighlighter" class="theme: Confluence; brush: text; gutter: false"><![CDATA[http://10.20.153.10:8080/com.foo.HelloWorld?wsdl]]></script>
</div></div>
<h4><a name="ProtocolReference-zh-JettyServer%3A%28default%29"></a>h4. Jetty Server: (default)</h4>
<div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent">
<script type="syntaxhighlighter" class="theme: Confluence; brush: xml; gutter: false"><![CDATA[&lt;dubbo:protocol ... server="jetty" /&gt;]]></script>
</div></div>
<h4><a name="ProtocolReference-zh-ServletBridgeServer%3A%28%29"></a>h4. Servlet Bridge Server: (<font color="brown">recommend</font>)</h4>
<div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent">
<script type="syntaxhighlighter" class="theme: Confluence; brush: xml; gutter: false"><![CDATA[&lt;dubbo:protocol ... server="servlet" /&gt;]]></script>
</div></div>
<p>web.xml：</p>
<div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent">
<script type="syntaxhighlighter" class="theme: Confluence; brush: xml; gutter: false"><![CDATA[&lt;servlet&gt;
&lt;servlet-name&gt;dubbo&lt;/servlet-name&gt;
&lt;servlet-class&gt;com.alibaba.dubbo.remoting.http.servlet.DispatcherServlet&lt;/servlet-class&gt;
&lt;load-on-startup&gt;1&lt;/load-on-startup&gt;
&lt;/servlet&gt;
&lt;servlet-mapping&gt;
&lt;servlet-name&gt;dubbo&lt;/servlet-name&gt;
&lt;url-pattern&gt;/*&lt;/url-pattern&gt;
&lt;/servlet-mapping&gt;]]></script>
</div></div>
<p>注意，如果使用servlet派发请求：</p>
<ul>
<li>协议的端口&lt;dubbo:protocol port="8080" /&gt;必须与servlet容器的端口相同，</li>
<li>协议的上下文路径&lt;dubbo:protocol contextpath="foo" /&gt;必须与servlet应用的上下文路径相同。</li>
</ul>
<h3><a name="ProtocolReference-zh-thrift%3A%2F%2F"></a>thrift://</h3>
<p>(<a href="Thrift+Protocol.htm" tppabs="http://10.20.160.198/wiki/display/dubbo/Thrift+Protocol" title="Thrift Protocol">+</a>) (<a href="#ProtocolReference-zh-thrift%253A%252F%252F">#</a>)</p>
<div class='panelMacro'><table class='noteMacro'><colgroup><col width='24'><col></colgroup><tr><td valign='top'><img src="warning-3.gif" tppabs="http://10.20.160.198/wiki/images/icons/emoticons/warning.gif" width="16" height="16" align="absmiddle" alt="" border="0"></td><td>2.3.0以上版本支持。</td></tr></table></div>
<div class='panelMacro'><table class='tipMacro'><colgroup><col width='24'><col></colgroup><tr><td valign='top'><img src="check.gif" tppabs="http://10.20.160.198/wiki/images/icons/emoticons/check.gif" width="16" height="16" align="absmiddle" alt="" border="0"></td><td><b>Thrift说明</b><br />Thrift是Facebook捐给Apache的一个RPC框架，参见：<a href="javascript:if(confirm(%27http://thrift.apache.org/ \n\nThis file was not retrieved by Teleport Ultra, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?%27))window.location=%27http://thrift.apache.org/%27" tppabs="http://thrift.apache.org/" class="external-link" rel="nofollow">http://thrift.apache.org</a></td></tr></table></div>
<div class='panelMacro'><table class='tipMacro'><colgroup><col width='24'><col></colgroup><tr><td valign='top'><img src="check.gif" tppabs="http://10.20.160.198/wiki/images/icons/emoticons/check.gif" width="16" height="16" align="absmiddle" alt="" border="0"></td><td><b>dubbo thrift协议</b><br />当前 dubbo 支持的 thrift 协议是对 thrift 原生协议的扩展，在原生协议的基础上添加了一些额外的头信息，比如service name，magic number等。使用dubbo thrift协议同样需要使用thrift的idl compiler编译生成相应的java代码，后续版本中会在这方面做一些增强。</td></tr></table></div>
<p>示例：<a href="javascript:if(confirm(%27https://github.com/alibaba/dubbo/tree/master/dubbo-rpc/dubbo-rpc-thrift/src/test/java/com/alibaba/dubbo/rpc/protocol/thrift/examples \n\nThis file was not retrieved by Teleport Ultra, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?%27))window.location=%27https://github.com/alibaba/dubbo/tree/master/dubbo-rpc/dubbo-rpc-thrift/src/test/java/com/alibaba/dubbo/rpc/protocol/thrift/examples%27" tppabs="https://github.com/alibaba/dubbo/tree/master/dubbo-rpc/dubbo-rpc-thrift/src/test/java/com/alibaba/dubbo/rpc/protocol/thrift/examples" class="external-link" rel="nofollow">https://github.com/alibaba/dubbo/tree/master/dubbo-rpc/dubbo-rpc-thrift/src/test/java/com/alibaba/dubbo/rpc/protocol/thrift/examples</a></p>
<p>依赖：</p>
<div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent">
<script type="syntaxhighlighter" class="theme: Confluence; brush: xml; gutter: false"><![CDATA[&lt;dependency&gt;
&lt;groupId&gt;org.apache.thrift&lt;/groupId&gt;
&lt;artifactId&gt;libthrift&lt;/artifactId&gt;
&lt;version&gt;0.8.0&lt;/version&gt;
&lt;/dependency&gt;]]></script>
</div></div>
<p>所有服务共用一个端口：(与原生Thrift不兼容)</p>
<div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent">
<script type="syntaxhighlighter" class="theme: Confluence; brush: java; gutter: false"><![CDATA[&lt;dubbo:protocol name="thrift" port="3030" /&gt;]]></script>
</div></div>
<p>Thrift<font color="red">不支持</font>数据类型：</p>
<ul>
<li>null值 (不能在协议中传递null值)</li>
</ul>
<h3><a name="ProtocolReference-zh-memcached%3A%2F%2F"></a>memcached://</h3>
<p>(<a href="Memcached+Protocol.htm" tppabs="http://10.20.160.198/wiki/display/dubbo/Memcached+Protocol" title="Memcached Protocol">+</a>) (<a href="#ProtocolReference-zh-memcached%253A%252F%252F">#</a>)</p>
<div class='panelMacro'><table class='noteMacro'><colgroup><col width='24'><col></colgroup><tr><td valign='top'><img src="warning-3.gif" tppabs="http://10.20.160.198/wiki/images/icons/emoticons/warning.gif" width="16" height="16" align="absmiddle" alt="" border="0"></td><td>2.3.0以上版本支持。</td></tr></table></div>
<div class='panelMacro'><table class='tipMacro'><colgroup><col width='24'><col></colgroup><tr><td valign='top'><img src="check.gif" tppabs="http://10.20.160.198/wiki/images/icons/emoticons/check.gif" width="16" height="16" align="absmiddle" alt="" border="0"></td><td><b>Memcached说明</b><br />Memcached是一个高效的KV缓存服务器，参见：<a href="javascript:if(confirm(%27http://memcached.org/ \n\nThis file was not retrieved by Teleport Ultra, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?%27))window.location=%27http://memcached.org/%27" tppabs="http://memcached.org/" class="external-link" rel="nofollow">http://memcached.org/</a></td></tr></table></div>
<p>可以通过脚本或监控中心手工填写表单注册memcached服务的地址：</p>
<div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent">
<script type="syntaxhighlighter" class="theme: Confluence; brush: java; gutter: false"><![CDATA[RegistryFactory registryFactory = ExtensionLoader.getExtensionLoader(RegistryFactory.class).getAdaptiveExtension();
Registry registry = registryFactory.getRegistry(URL.valueOf("zookeeper://10.20.153.10:2181"));
registry.register(URL.valueOf("memcached://10.20.153.11/com.foo.BarService?category=providers&amp;dynamic=false&amp;application=foo&amp;group=member&amp;loadbalance=consistenthash"));]]></script>
</div></div>
<p>然后在客户端使用时，不需要感知Memcached的地址：</p>
<div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent">
<script type="syntaxhighlighter" class="theme: Confluence; brush: xml; gutter: false"><![CDATA[&lt;dubbo:reference id="cache" interface="http://10.20.160.198/wiki/display/dubbo/java.util.Map" group="member" /&gt;]]></script>
</div></div>
<p>或者，点对点直连：</p>
<div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent">
<script type="syntaxhighlighter" class="theme: Confluence; brush: xml; gutter: false"><![CDATA[&lt;dubbo:reference id="cache" interface="http://10.20.160.198/wiki/display/dubbo/java.util.Map" url="memcached://10.20.153.10:11211" /&gt;]]></script>
</div></div>
<p>也可以使用自定义接口：</p>
<div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent">
<script type="syntaxhighlighter" class="theme: Confluence; brush: xml; gutter: false"><![CDATA[&lt;dubbo:reference id="cache" interface="com.foo.CacheService" url="memcached://10.20.153.10:11211" /&gt;]]></script>
</div></div>
<p>方法名建议和memcached的标准方法名相同，即：get(key), set(key, value), delete(key)。</p>
<p>如果方法名和memcached的标准方法名不相同，则需要配置映射关系：(其中"p:xxx"为spring的标准p标签)</p>
<div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent">
<script type="syntaxhighlighter" class="theme: Confluence; brush: xml; gutter: false"><![CDATA[&lt;dubbo:reference id="cache" interface="com.foo.CacheService" url="memcached://10.20.153.10:11211" p:set="putFoo" p:get="getFoo" p:delete="removeFoo" /&gt;]]></script>
</div></div>
<h3><a name="ProtocolReference-zh-redis%3A%2F%2F"></a>redis://</h3>
<p>(<a href="Redis+Protocol.htm" tppabs="http://10.20.160.198/wiki/display/dubbo/Redis+Protocol" title="Redis Protocol">+</a>) (<a href="#ProtocolReference-zh-redis%253A%252F%252F">#</a>)</p>
<div class='panelMacro'><table class='noteMacro'><colgroup><col width='24'><col></colgroup><tr><td valign='top'><img src="warning-3.gif" tppabs="http://10.20.160.198/wiki/images/icons/emoticons/warning.gif" width="16" height="16" align="absmiddle" alt="" border="0"></td><td>2.3.0以上版本支持。</td></tr></table></div>
<div class='panelMacro'><table class='tipMacro'><colgroup><col width='24'><col></colgroup><tr><td valign='top'><img src="check.gif" tppabs="http://10.20.160.198/wiki/images/icons/emoticons/check.gif" width="16" height="16" align="absmiddle" alt="" border="0"></td><td><b>Redis说明</b><br />Redis是一个高效的KV存储服务器，参见：<a href="javascript:if(confirm(%27http://redis.io/ \n\nThis file was not retrieved by Teleport Ultra, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?%27))window.location=%27http://redis.io/%27" tppabs="http://redis.io/" class="external-link" rel="nofollow">http://redis.io</a></td></tr></table></div>
<p>可以通过脚本或监控中心手工填写表单注册redis服务的地址：</p>
<div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent">
<script type="syntaxhighlighter" class="theme: Confluence; brush: java; gutter: false"><![CDATA[RegistryFactory registryFactory = ExtensionLoader.getExtensionLoader(RegistryFactory.class).getAdaptiveExtension();
Registry registry = registryFactory.getRegistry(URL.valueOf("zookeeper://10.20.153.10:2181"));
registry.register(URL.valueOf("redis://10.20.153.11/com.foo.BarService?category=providers&amp;dynamic=false&amp;application=foo&amp;group=member&amp;loadbalance=consistenthash"));]]></script>
</div></div>
<p>然后在客户端使用时，不需要感知Redis的地址：</p>
<div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent">
<script type="syntaxhighlighter" class="theme: Confluence; brush: xml; gutter: false"><![CDATA[&lt;dubbo:reference id="store" interface="http://10.20.160.198/wiki/display/dubbo/java.util.Map" group="member" /&gt;]]></script>
</div></div>
<p>或者，点对点直连：</p>
<div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent">
<script type="syntaxhighlighter" class="theme: Confluence; brush: xml; gutter: false"><![CDATA[&lt;dubbo:reference id="store" interface="http://10.20.160.198/wiki/display/dubbo/java.util.Map" url="redis://10.20.153.10:6379" /&gt;]]></script>
</div></div>
<p>也可以使用自定义接口：</p>
<div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent">
<script type="syntaxhighlighter" class="theme: Confluence; brush: xml; gutter: false"><![CDATA[&lt;dubbo:reference id="store" interface="com.foo.StoreService" url="redis://10.20.153.10:6379" /&gt;]]></script>
</div></div>
<p>方法名建议和redis的标准方法名相同，即：get(key), set(key, value), delete(key)。</p>
<p>如果方法名和redis的标准方法名不相同，则需要配置映射关系：(其中"p:xxx"为spring的标准p标签)</p>
<div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent">
<script type="syntaxhighlighter" class="theme: Confluence; brush: xml; gutter: false"><![CDATA[&lt;dubbo:reference id="cache" interface="com.foo.CacheService" url="memcached://10.20.153.10:11211" p:set="putFoo" p:get="getFoo" p:delete="removeFoo" /&gt;]]></script>
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