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| <h1 id="struts-1-plugin">Struts 1 Plugin</h1> |
| |
| <p>The Struts 1 plugin allows you to use existing Struts 1 Actions and ActionForms in Struts 2 applications</p> |
| |
| <p>This plugin provides a generic Struts 2 Action class to wrap an existing Struts 1 Action, <code class="highlighter-rouge">org.apache.struts2.s1.Struts1Action</code>. The wrapper class provides the expected calls to the legacy Struts 1 Action and ActionForm, converting incoming and outgoing objects into the expected forms. It works by using the <a href="/core-developers/scoped-model-driven-interceptor.html">scoped model driven</a> technique that uses a single Object as the model for every page, very similar to how the Struts 1 ActionForm works. The plugin also provides several interceptors to emulate Struts 1 logic:</p> |
| |
| <ul> |
| <li> |
| <p><code class="highlighter-rouge">org.apache.struts2.s1.ActionFormValidatorInterceptor</code> - Integrates the validation of ActionForms into the workflow of Struts 2</p> |
| </li> |
| <li> |
| <p><code class="highlighter-rouge">org.apache.struts2.s1.ActionFormResetInterceptor</code> - Calls the <code class="highlighter-rouge">reset()</code> method on any discovered ActionForms</p> |
| </li> |
| </ul> |
| |
| <p>The Struts 1 plugin is currently only intended to allow you to run Strust 1 actions inside a Struts 2 application. It DOES NOT allow you to continue to use the Struts 1 tag libraries in your JSPs. Your JSPs must be converted to use the Struts 2 tag library.</p> |
| |
| <p>There is a <a href="https://issues.apache.org/struts/browse/WW-2157">JIRA ticket</a> open for enhancing this plugin to allow a more seamless transition from Struts 1 to Struts 2 by supporting continued use of the Struts 1 tag libraries in JSPs, however, there is not a scheduled time frame for that functionality to be made available. (Patches are welcomed!)</p> |
| |
| <h2 id="features">Features</h2> |
| |
| <ul> |
| <li> |
| <p>Can use Struts 1 Actions and ActionForms with no code changes</p> |
| </li> |
| <li> |
| <p>Supports Commons Validator-enabled ActionForms</p> |
| </li> |
| </ul> |
| |
| <h2 id="usage">Usage</h2> |
| |
| <p>To use existing Struts 1 Actions and ActionForms in a Struts 2 application, create a normal Struts 2 configuration package in <code class="highlighter-rouge">struts.xml</code>, but have it extend <code class="highlighter-rouge">struts1-default</code>. The <code class="highlighter-rouge">struts1-default</code> package contains several interceptors and a default interceptor stack that work the plugin into the Struts 2 request process.</p> |
| |
| <p>In the most simple case, where you have a Struts 1 Action that you want to use in Struts 2, configure a Struts 2 action using the wrapper:</p> |
| |
| <p><strong>Simple Struts 1 configuration</strong></p> |
| |
| <div class="language-xml highlighter-rouge"><div class="highlight"><pre class="highlight"><code> |
| <span class="nt"><action</span> <span class="na">name=</span><span class="s">"myAction"</span> <span class="na">class=</span><span class="s">"org.apache.struts2.s1.Struts1Action"</span><span class="nt">></span> |
| <span class="nt"><param</span> <span class="na">name=</span><span class="s">"className"</span><span class="nt">></span>com.mycompany.myapp.MyAction<span class="nt"></param></span> |
| <span class="nt"><result></span>myAction.jsp<span class="nt"></result></span> |
| <span class="nt"></action></span> |
| |
| </code></pre></div></div> |
| |
| <p>Most likely, you will have an ActionForm that your Struts 1 Action expects. To use an ActionForm, the setup is a little more complicated because you’ll need an interceptor that manages the creation and scope (to support request and session scoping like Struts 1) of the ActionForm.</p> |
| |
| <p><strong>Struts 1 Action with a session-scoped ActionForm</strong></p> |
| |
| <div class="language-xml highlighter-rouge"><div class="highlight"><pre class="highlight"><code> |
| |
| <span class="nt"><action</span> <span class="na">name=</span><span class="s">"myFormAction"</span> <span class="na">class=</span><span class="s">"org.apache.struts2.s1.Struts1Action"</span><span class="nt">></span> |
| <span class="nt"><param</span> <span class="na">name=</span><span class="s">"className"</span><span class="nt">></span>com.mycompany.myapp.MyAction<span class="nt"></param></span> |
| |
| <span class="nt"><interceptor-ref</span> <span class="na">name=</span><span class="s">"scopedModelDriven"</span><span class="nt">></span> |
| <span class="nt"><param</span> <span class="na">name=</span><span class="s">"className"</span><span class="nt">></span>com.mycompany.myapp.MyForm<span class="nt"></param></span> |
| <span class="nt"><param</span> <span class="na">name=</span><span class="s">"name"</span><span class="nt">></span>gangsterForm<span class="nt"></param></span> |
| <span class="nt"><param</span> <span class="na">name=</span><span class="s">"scope"</span><span class="nt">></span>session<span class="nt"></param></span> |
| <span class="nt"></interceptor-ref></span> |
| <span class="nt"><interceptor-ref</span> <span class="na">name=</span><span class="s">"struts1Stack"</span><span class="nt">/></span> |
| |
| <span class="nt"><result></span>myAction.jsp<span class="nt"></result></span> |
| <span class="nt"></action></span> |
| |
| </code></pre></div></div> |
| |
| <h2 id="example">Example</h2> |
| |
| <p>This example shows a few Struts 1 Actions, a session-scoped ActionForm, and validation that uses Commons Validator:</p> |
| |
| <div class="language-xml highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="cp"><?xml version="1.0" encoding="UTF-8" ?></span> |
| <span class="cp"><!DOCTYPE struts PUBLIC |
| "-//Apache Software Foundation//DTD Struts Configuration 2.5//EN" |
| "http://struts.apache.org/dtds/struts-2.5.dtd"></span> |
| |
| <span class="nt"><struts></span> |
| <span class="nt"><package</span> <span class="na">name=</span><span class="s">"conversion"</span> <span class="na">namespace=</span><span class="s">"/conversion"</span> <span class="na">extends=</span><span class="s">"struts-default"</span><span class="nt">></span> |
| |
| <span class="nt"><action</span> <span class="na">name=</span><span class="s">"index"</span><span class="nt">></span> |
| <span class="nt"><result></span>/WEB-INF/conversion/index.jsp<span class="nt"></result></span> |
| <span class="nt"></action></span> |
| |
| <span class="c"><!-- Example populating a List inside an Action --></span> |
| <span class="nt"><action</span> <span class="na">name=</span><span class="s">"enterPersonsInfo"</span> <span class="na">method=</span><span class="s">"input"</span> |
| <span class="na">class=</span><span class="s">"org.apache.struts2.showcase.conversion.PersonAction"</span><span class="nt">></span> |
| <span class="nt"><result></span>/WEB-INF/conversion/enterPersonInfo.jsp<span class="nt"></result></span> |
| <span class="nt"></action></span> |
| <span class="nt"><action</span> <span class="na">name=</span><span class="s">"submitPersonInfo"</span> <span class="na">method=</span><span class="s">"submit"</span> |
| <span class="na">class=</span><span class="s">"org.apache.struts2.showcase.conversion.PersonAction"</span><span class="nt">></span> |
| <span class="nt"><result></span>/WEB-INF/conversion/showPersonInfo.jsp<span class="nt"></result></span> |
| <span class="nt"><result</span> <span class="na">name=</span><span class="s">"input"</span><span class="nt">></span>/WEB-INF/conversion/enterPersonInfo.jsp<span class="nt"></result></span> |
| <span class="nt"></action></span> |
| <span class="nt"><action</span> <span class="na">name=</span><span class="s">"showPersonJspCode"</span><span class="nt">></span> |
| <span class="nt"><result</span> <span class="na">type=</span><span class="s">"plainText"</span><span class="nt">></span>/WEB-INF/conversion/enterPersonInfo.jsp<span class="nt"></result></span> |
| <span class="nt"></action></span> |
| <span class="nt"><action</span> <span class="na">name=</span><span class="s">"showPersonActionJavaCode"</span><span class="nt">></span> |
| <span class="nt"><result</span> <span class="na">type=</span><span class="s">"plainText"</span><span class="nt">></span>/WEB-INF/conversion/PersonAction.java.txt<span class="nt"></result></span> |
| <span class="nt"></action></span> |
| <span class="nt"><action</span> <span class="na">name=</span><span class="s">"showPersonJavaCode"</span><span class="nt">></span> |
| <span class="nt"><result</span> <span class="na">type=</span><span class="s">"plainText"</span><span class="nt">></span>/WEB-INF/conversion/Person.java.txt<span class="nt"></result></span> |
| <span class="nt"></action></span> |
| |
| |
| <span class="c"><!-- Example populating a Set inside an Action --></span> |
| <span class="nt"><action</span> <span class="na">name=</span><span class="s">"enterAddressesInfo"</span> <span class="na">class=</span><span class="s">"org.apache.struts2.showcase.conversion.AddressAction"</span> <span class="na">method=</span><span class="s">"input"</span><span class="nt">></span> |
| <span class="nt"><result></span>/WEB-INF/conversion/enterAddressInfo.jsp<span class="nt"></result></span> |
| <span class="nt"></action></span> |
| <span class="nt"><action</span> <span class="na">name=</span><span class="s">"submitAddressesInfo"</span> <span class="na">class=</span><span class="s">"org.apache.struts2.showcase.conversion.AddressAction"</span> <span class="na">method=</span><span class="s">"submit"</span><span class="nt">></span> |
| <span class="nt"><result></span>/WEB-INF/conversion/showAddressInfo.jsp<span class="nt"></result></span> |
| <span class="nt"><result</span> <span class="na">name=</span><span class="s">"input"</span><span class="nt">></span>/WEB-INF/conversion/enterAddressInfo.jsp<span class="nt"></result></span> |
| <span class="nt"></action></span> |
| <span class="nt"><action</span> <span class="na">name=</span><span class="s">"showAddressJspCode"</span><span class="nt">></span> |
| <span class="nt"><result</span> <span class="na">type=</span><span class="s">"plainText"</span><span class="nt">></span>/WEB-INF/conversion/enterAddressInfo.jsp<span class="nt"></result></span> |
| <span class="nt"></action></span> |
| <span class="nt"><action</span> <span class="na">name=</span><span class="s">"showAddressActionJavaCode"</span><span class="nt">></span> |
| <span class="nt"><result</span> <span class="na">type=</span><span class="s">"plainText"</span><span class="nt">></span>/WEB-INF/conversion/AddressAction.java.txt<span class="nt"></result></span> |
| <span class="nt"></action></span> |
| <span class="nt"><action</span> <span class="na">name=</span><span class="s">"showAddressJavaCode"</span><span class="nt">></span> |
| <span class="nt"><result</span> <span class="na">type=</span><span class="s">"plainText"</span><span class="nt">></span>/WEB-INF/conversion/Address.java.txt<span class="nt"></result></span> |
| <span class="nt"></action></span> |
| |
| |
| <span class="c"><!-- Example populating a List with Tiger 5 Enum --></span> |
| <span class="nt"><action</span> <span class="na">name=</span><span class="s">"enterOperationEnumInfo"</span> <span class="na">class=</span><span class="s">"org.apache.struts2.showcase.conversion.OperationsEnumAction"</span> <span class="na">method=</span><span class="s">"input"</span><span class="nt">></span> |
| <span class="nt"><result></span>/WEB-INF/conversion/enterOperations.jsp<span class="nt"></result></span> |
| <span class="nt"></action></span> |
| <span class="nt"><action</span> <span class="na">name=</span><span class="s">"submitOperationEnumInfo"</span> <span class="na">class=</span><span class="s">"org.apache.struts2.showcase.conversion.OperationsEnumAction"</span> <span class="na">method=</span><span class="s">"submit"</span><span class="nt">></span> |
| <span class="nt"><result></span>/WEB-INF/conversion/showOperations.jsp<span class="nt"></result></span> |
| <span class="nt"><result</span> <span class="na">name=</span><span class="s">"input"</span><span class="nt">></span>/WEB-INF/conversion/enterOperations.jsp<span class="nt"></result></span> |
| <span class="nt"></action></span> |
| <span class="nt"><action</span> <span class="na">name=</span><span class="s">"showEnumJspCode"</span><span class="nt">></span> |
| <span class="nt"><result</span> <span class="na">type=</span><span class="s">"plainText"</span><span class="nt">></span>/WEB-INF/conversion/enterOperations.jsp<span class="nt"></result></span> |
| <span class="nt"></action></span> |
| <span class="nt"><action</span> <span class="na">name=</span><span class="s">"showOperationsEnumJavaCode"</span><span class="nt">></span> |
| <span class="nt"><result</span> <span class="na">type=</span><span class="s">"plainText"</span><span class="nt">></span>/WEB-INF/conversion/OperationsEnum.java.txt<span class="nt"></result></span> |
| <span class="nt"></action></span> |
| <span class="nt"><action</span> <span class="na">name=</span><span class="s">"showOperationEnumActionJavaCode"</span><span class="nt">></span> |
| <span class="nt"><result</span> <span class="na">type=</span><span class="s">"plainText"</span><span class="nt">></span>/WEB-INF/conversion/OperationsEnumAction.java.txt<span class="nt"></result></span> |
| <span class="nt"></action></span> |
| <span class="nt"><action</span> <span class="na">name=</span><span class="s">"showEnumTypeConverterJavaCode"</span><span class="nt">></span> |
| <span class="nt"><result</span> <span class="na">type=</span><span class="s">"plainText"</span><span class="nt">></span>/WEB-INF/conversion/EnumTypeConverter.java.txt<span class="nt"></result></span> |
| <span class="nt"></action></span> |
| <span class="nt"><action</span> <span class="na">name=</span><span class="s">"showOperationsEnumActionConversionProperties"</span><span class="nt">></span> |
| <span class="nt"><result</span> <span class="na">type=</span><span class="s">"plainText"</span><span class="nt">></span>/WEB-INF/conversion/OperationsEnumActionConversion.txt<span class="nt"></result></span> |
| <span class="nt"></action></span> |
| |
| <span class="nt"></package></span> |
| <span class="nt"></struts></span> |
| |
| </code></pre></div></div> |
| |
| <h2 id="settings">Settings</h2> |
| |
| <p>This plugin doesn’t support any global settings.</p> |
| |
| <h2 id="installation">Installation</h2> |
| |
| <p>This plugin can be installed by copying the plugin jar into your application’s <code class="highlighter-rouge">/WEB-INF/lib</code> directory. It will need the Struts 1 jar in order to function correctly.</p> |
| |
| </section> |
| </article> |
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