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！