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POScope Interceptor Struts 2: back button behaviour
 

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  1. POScope Interceptor Struts 2: back button behaviour
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    <p>I want to implement a wizard like functionality in my Struts2(2.2.3.1) application using Scope interceptor.</p> <p>My struts.xml file is as follows:</p> <pre><code>&lt;action name="actionA class="classA" method="methodA"&gt; &lt;interceptor-ref name="basicStack" /&gt; &lt;interceptor-ref name="scope"&gt; &lt;param name="session"&gt;stringA&lt;/param&gt; &lt;param name="key"&gt;consultGuides&lt;/param&gt; &lt;param name="type"&gt;start&lt;/param&gt; &lt;/interceptor-ref&gt; &lt;result&gt;/resultA.jsp&lt;/result&gt; &lt;/action&gt; &lt;action name="actionB" class="classA" method="methodB"&gt; &lt;interceptor-ref name="scope"&gt; &lt;param name="session"&gt;stringA, listA&lt;/param&gt; &lt;param name="key"&gt;consultGuides&lt;/param&gt; &lt;/interceptor-ref&gt; &lt;interceptor-ref name="basicStack" /&gt; &lt;result&gt;/resultB.jsp&lt;/result&gt; &lt;/action&gt; .... .... </code></pre> <p>"resultA.jsp" submits to"actionB" populating the "listA". But now if I press the back button(reaching resultA.jsp, where resultA.jsp is just loaded to the browser from its cache without making a new request to the server) and make any changes to the list, the new entries are appended to "listA" instead of entirely replacing it.</p> <p>The code in 'resultA.jsp' that modifies 'listA' is </p> <pre><code>&lt;s:iterator value="listB" status="statusB"&gt; &lt;li&gt; &lt;a title="%{varA}"&gt; &lt;s:checkbox name="listA.id" fieldValue="%{varB}" /&gt; &lt;/a&gt; &lt;/li&gt; &lt;/s:iterator&gt; </code></pre> <p>I am not implementing SessionAware and just relying on the scopeInterceptor to feed listA to the session. </p> <p>How can I make it replace the "listA" with the new list in the request? </p>
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