Problem with Struts 2 parameter options when redirecting to another action

Question

I am trying to redirect to another action and pass a string parameter. This works without problems, but I have a problem with the encoding if I use German umlauts.

Here is my code: The first action has a field message with a getter and a setter. In action, I set the line.

private String message; public String action1() { message = "ö"; return SUCCESS; } 

The second action has a field message with a getter and installer.

 private String message; 

Struts.xml defining both actions

 <action name="action" method="action1" class="de.samba.control.actions.Action1"> <result name="success" type="redirectAction"> <param name="actionName">action2</param> <param name="message">${message}</param> 

 <action name="action2" class="de.samba.control.actions.Action2"> <result name="success">/pages/showMessage.jsp</result> 

If I do not use redirection and do not show the message on jsp, everything works fine. The encoding is correct. If I redirect to another action, the message field installer sets the wrong line of the form "ö". I can not find a solution. Can someone help me?

Custom filter:

 <filter> <filter-name>CharacterEncodingFilter</filter-name> <filter-class>de.samba.control.CharacterEncodingFilter</filter-class> </filter> <filter-mapping> <filter-name>CharacterEncodingFilter</filter-name> <url-pattern>*.action</url-pattern> </filter-mapping> 

Class filter

 public class CharacterEncodingFilter implements Filter { @Override public void doFilter(ServletRequest request, ServletResponse response, FilterChain next) throws IOException, ServletException { String encoding = request.getCharacterEncoding(); if (encoding == null || encoding.length() == 0) { request.setCharacterEncoding("UTF-8"); } encoding = request.getCharacterEncoding(); next.doFilter(request, response); } } 

Then I tried this filter:

 <filter> <filter-name>encodingFilter</filter-name> <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class> <init-param> <param-name>encoding</param-name> <param-value>UTF-8</param-value> </init-param> <init-param> <param-name>forceEncoding</param-name> <param-value>true</param-value> </init-param> </filter> 

This does not work either. Does anyone know this problem? Perhaps this is caused by Spring Security.

Answer 1

The problem was a tomcat problem, not a problem. The solution is to install the URIEncoding connector on "utf-8" in server.xml. See http://struts.apache.org/2.0.14/docs/how-to-support-utf-8-uriencoding-with-tomcat.html

Answer 2

Perhaps the problem is how the URL is generated (which triggers the action). For example, if the URL generations are something like below, keep in mind the escape attribute :

  <s:url namespace="/" action="recursoNuevo" var="recursoNuevo" > <s:param name="contextPath"> <s:property value="contextPath" escape="false"/> </s:param> </s:url> 

Answer 3

This question looks the same as yours:

Character Encoding Struts2

Answer 4

I think you can try to keep your message variable in the session. in addition, afaik, generally speaking, in a web application, the recommended way to transfer information from one action to another action is to use a session.

and if something else fails, I think there is a hacky way. You can publish the result on a regular web page (jsp). you put this message value in the input element. then you write javascript that automatically passes the value inside this input element. Not recommended.