strust2接收URL参数为中文是乱码问题的解决

                 这几天在做一个网站，用struts2框架作为展现层，与web端的页面做交互，其间就遇到了一个问题，困了我好久，我前端用ajax异步调用了一个action方法，链接中还有参数（中文的），在action中request接受之后参数全部为乱码，这个JSP包括struts2中该设置编码的地方我都设为了UTF-8,结果还是出现了这个问题。网上查了好久，左改改又改改，终于解决了这个问题，解决方案如下：

1.提交参数时要用POST方式

2.struts.properties文件中加入：struts.locale=zh_CN， struts.i18n.encoding=UTF-8

3.tomcat的server.xml文件中对应的8080端口号的文件中加入useBodyEncodingForURI="true" ， URIEncoding="UTF-8"

4.对接收的参数进行字符编码转换：new String(request.getParameter("参数名").getBytes("ISO-8859-1"), "UTF-8");

这个方法最给力，我的就是这样解决的，如果还没有解决，那就用EncodeFilter吧！代码如下：

package com.yun.action;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class EncodeFilter implements Filter{
	protected String encoding=null;   
	  protected FilterConfig filterConfig=null;   
	  protected boolean ignore=true;   
	   
	  public void destroy() {	   
	  }   
	   
	  public void doFilter(ServletRequest servletRequest,   
	  ServletResponse servletResponse, FilterChain filterChain)   
	  throws IOException, ServletException {   	   
	  HttpServletRequest request = (HttpServletRequest) servletRequest;   
	  HttpServletResponse response = (HttpServletResponse) servletResponse;   	   
	  String requestedWith = request.getHeader("x-requested-with");   
	  String type = request.getContentType();   
	  if (requestedWith != null && "XMLHttpRequest".equals(requestedWith)   
	  && null != type   
	  && ("application/x-www-form-urlencoded".equals(type)||"application/x-www-form-urlencoded; charset=UTF-8".equals(type))) {   	    
	  request.setCharacterEncoding("UTF-8");   
	  response.setCharacterEncoding("UTF-8");   
	  request.getParameterMap();   
	  }
	     	   
	  filterChain.doFilter(request, response);   	   
	  }   
	   
	  public void init(FilterConfig arg0) throws ServletException {   
	  // TODO Auto-generated method stub   	   
	  }   
	   
}

然后配置文件中加入：

<filter>
   <filter-name>encoding</filter-name>
   <filter-class>com.yun.action.EncodeFilter</filter-class>
   <init-param>
   <param-name>encoding</param-name>
   <param-value>UTF-8</param-value>
   </init-param>
   </filter>
   <filter-mapping>
   <filter-name>encoding</filter-name>
   <url-pattern>/*</url-pattern>
   </filter-mapping>

这样的话基本上乱码问题都可以解决了，如果可以帮到你，帮着顶顶啊！