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POGet a URL from an Action name: Struts 2
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copied!<p>In struts 2 there is a struts tag where you can specify an action name and it gives you the url to that action:</p> <pre><code><s:url action="action_name" /> </code></pre> <p>I've been looking for a while now to see if it is possible to do this in an Struts2 Action/Interceptor. I found the class that relates to this struts tag I think (<code>org.apache.struts2.components.URL</code>) but can't figure out how to use it.</p> <p>This is as far as I got but it might not be how to use it (if its possible at all) but any method I call after this just gives me NullPointerExceptions.:</p> <pre><code>public String intercept(ActionInvocation ai) throws Exception { HttpServletRequest request = ServletActionContext.getRequest(); HttpServletResponse response = ServletActionContext.getResponse(); URL url = new URL(ai.getStack(), request, response); url.setAction("login"); //e.g. url.start(<with stringwriter>); } </code></pre> <p>Hoping this can be done as it would save a lot of troube!</p> <p>Thanks.</p> <h2>EDIT</h2> <pre><code>URL url = new URL(invocation.getStack(), request, response); url.setActionMapper(new DefaultActionMapper()); String redirectUrl = url.getUrlProvider().determineActionURL("action_name", invocation.getProxy().getNamespace(), invocation.getProxy().getMethod(), request, response, request.getParameterMap(), "http", true, true, false, false); </code></pre> <p>This code does work and gives me a redirect URL but I was wondering if there was a way to get the CURRENT ActionMapper rather than create a new one. I've done a quick google but can't find anything.</p>

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