解决因Struts2.0中org.apache.struts2.dispatcher.FilterDispatcher的Encoding问题使页面成乱码的总题
用Freemarker生成静态页后,访问时老是出现乱码.

关于生成静态页的过程用的都是UTF-8编码.也没出现什么问题,生成的静态页双击打开,都很正常,没有出现乱码问题.

但是项目(用到struts2.0)布署到TOMCAT中,老是出现乱码问题,浏览器打开生成的静态页时,老是用ISO-8859-1的编码打开,必然是乱码,右击》编码》UTF-8打开,一切显示正常,所以应该是项目中filter的编码有问题.

当把WEB.XML中的Fileter去了,就没有乱码问题.

<filter>        <filter-name>struts</filter-name>        <filter-class>            org.apache.struts2.dispatcher.FilterDispatcher        </filter-class> </filter>    <filter-mapping>        <filter-name>struts</filter-name>        <url-pattern>/*</url-pattern> </filter-mapping> 

所以应该在该Filter里配置编码.查看 org.apache.struts2.dispatcher.FilterDispatcher 的init方法中没有encoding参数.所以就自己创建个Filter,如下

import java.io.IOException; import javax.servlet.FilterChain; import javax.servlet.FilterConfig; import javax.servlet.ServletException; import javax.servlet.ServletRequest; import javax.servlet.ServletResponse; import org.apache.struts2.dispatcher.FilterDispatcher; public class NewFilterDispatcher extends FilterDispatcher {      private static String encoding = "UTF-8";          public void init(FilterConfig filterConfig) throws ServletException {             super.init(filterConfig);             String encodingParam = filterConfig.getInitParameter("encoding"); //获取web.xml下的初始化参数            if (encodingParam != null && encodingParam.trim().length() != 0) {                 encoding = encodingParam;             }         }         public void doFilter(ServletRequest request, ServletResponse response,                 FilterChain chain) throws IOException, ServletException {             request.setCharacterEncoding(encoding); //设置request编码格式     response.setCharacterEncoding(encoding);//设置response编码格式            super.doFilter(request, response, chain);         } } 

再在web.xml中进行配置

<filter>        <filter-name>struts</filter-name>        <filter-class>            com.filter.NewFilterDispatcher       </filter-class>        <init-param>             <param-name>encoding</param-name>             <param-value>UTF-8</param-value>         </init-param>    </filter>         <filter-mapping>        <filter-name>struts</filter-name>        <url-pattern>/*</url-pattern>     </filter-mapping> 

问题解决.