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From Martin Gainty <mgai...@hotmail.com>
Subject RE: Struts2 RedirectAction Situation
Date Fri, 13 Jul 2012 20:50:12 GMT

Necesita cambiar a Header con el nombre 'Location' a nuevo URL
URL page = new URL(hostUrl);
 
        HttpURLConnection.setFollowRedirects(true);
        HttpURLConnection urlc = (HttpURLConnection) page.openConnection();
String token = urlc.getHeaderField("Location");

Martin Gainty 
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From: jmocker@velti.com
To: user@struts.apache.org
Subject: Re: Struts2 RedirectAction Situation
Date: Fri, 13 Jul 2012 17:58:45 +0000






Hi Hernán,



I encountered the same problem as what you are describing. I just figured out the cause for
me, which appears to be a String bean I have instantiated in my Spring applicationContext.xml




    <bean id="myBeanName" class="java.lang.String">
    
<constructor-arg type="java.lang.String" value="enabled"/>
    </bean>




>From trudging around debug logs it appears Spring is autowiring this by-type as this bean
name is clearly not referenced in ServletActionRedirectResult. Perhaps
 something similar is happening for you.



  --joe










Joseph
Mocker  |  Senior Software Architect


t +1.650.566.7033   m +1.408.676.6625

e jmocker@velti.com   @Mobclix



The leading global technology provider of

mobile marketing and advertising solutions









On Jul 11, 2012, at 7:12 AM, Hernán wrote:


Some days ago I wrote about a problem I had with struts2. As nobody knew

the answer, I solved it but then I forgot to comment about it. So I'll do

it now.

I upgraded a Struts2, Spring, Hibernate Application to the latest version

of struts2 2.3.4, that's way I also upgraded it's corresponding Spring,

Spring security and Tiles dependencies. The web app had spring 2.5.6,

Spring security 2.0 and Tiles 2.0.6. Now it uses spring 3.0.7.RELEASE,

Spring Security 3.1 and Tiles 2.2.2.



The problem I had was with RedirectAction Result, in a nutshell: whenever

struts2 redirected an action, it added !Something#Something at the end of

the correct action I wanted to redirect. As you should know these are the

method and anchor parameters of RedirectAction result... The thing is that

this "Something" comes from Spring Security 3.1 (the same happened with

Spring Security 3.0 as I tried it)



   <beans:bean id="successLogoutUrl" class="java.lang.String">

       <beans:constructor-arg value="Something" />

   </beans:bean>



   <beans:bean id="logoutFilter"

class="org.springframework.security.web.authentication.logout.LogoutFilter">

       <beans:constructor-arg ref="successLogoutUrl" />

       <beans:constructor-arg>

           <beans:list>

               <beans:ref bean="rememberMeServices" />

               <beans:ref bean="securityContextLogoutHandler" />

           </beans:list>

       </beans:constructor-arg>

       <beans:property name="filterProcessesUrl"

value="/logout/j_spring_security_logout"/>

   </beans:bean>





For an unknown reason (at least for me). The Struts2 class

ServletActionRedirectResult used this constructor and...



   public ServletActionRedirectResult(String namespace, String actionName,

String method, String anchor) {

       super(null, anchor);

       this.namespace = namespace;

       this.actionName = actionName;

       this.method = method;

   }



the values passed in each parameter where the String "Something" then there

was no way to avoid method and anchor parameters of being added to the

redirected action, that's why I made a patch and solve the problem.

What I did is something childish but efficient, I passed "null" String

value to parameters anchor and method and in the code, if the parameters

were the String "null" I set the parameters to null. I know it's a little

bit weird but it worked for me... Maybe I am doing something wrong. Dunno.

Anyway bear it in mind, maybe I'm wrong, maybe it's a bug. I don't know.



Here goes my Patch Adams Code Snippets:



struts.xml



       <action name="ChangeLocaleTo*Action"

class="changeLocaleTo{1}Action" >

           <interceptor-ref name="i18nStack" />



           <result name="success" type="redirectAction">

               <param name="actionName">${redirectToAction}</param>

               <param name="namespace">${redirectToNamespace}</param>

               <param name="method">null</param>

               <param name="anchor">null</param>

           </result>

       </action>



org.apache.struts2.dispatcher.ServletActionRedirectResult.java



   public void execute(ActionInvocation invocation) throws Exception {

       actionName = conditionalParse(actionName, invocation);

       if (namespace == null) {

           namespace = invocation.getProxy().getNamespace();

       } else {

           namespace = conditionalParse(namespace, invocation);

       }

       if (method == null || method.equalsIgnoreCase("null")) {

           method = "";

       } else {

           method = conditionalParse(method, invocation);

       }



       String tmpLocation = actionMapper.getUriFromActionMapping(new

ActionMapping(actionName, namespace, method, null));



       setLocation(tmpLocation);



       super.execute(invocation);

   }



org.apache.struts2.dispatcher.ServletRedirectResult.java



   public void execute(ActionInvocation invocation) throws Exception {

       if (anchor != null && !anchor.equalsIgnoreCase("null") &&

!anchor.equalsIgnoreCase("")) {

           anchor = conditionalParse(anchor, invocation);

       }

       super.execute(invocation);

   }





Greetings, any comment will be appreciated.



-- 

Hernán





 		 	   		  
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