解决Struts乱码问题报错。只有这么多分了，解决后立刻给分
解决Struts乱码问题报错。
我的解决方法是：
1.所有页面都定义
<%@   page   language= "java "   contentType= "text/html;charset=UTF-8 "   %>
2.配置Servelet的过滤器
新建一个类SetCharacterEncodingFilter.java
package   com.vivian8117.struts;
import   java.io.IOException;
import   javax.servlet.FilterChain;
import   javax.servlet.ServletException;
import   javax.servlet.ServletRequest;
import   javax.servlet.ServletResponse;
import   com.sun.org.apache.xalan.internal.xsltc.dom.Filter;
public   class   SetCharacterEncodingFilter   implements   Filter   {
public   void   doFilter(ServletRequest   request,   ServletResponse   response,   FilterChain   chain)throws   IOException,   ServletException   {
request.setCharacterEncoding( "UTF-8 ");
//   传递控制到下一个过滤器
chain.doFilter(request,   response);
}
public   boolean   test(int   node)   {
//   TODO   Auto-generated   method   stub
return   false;
}
}
3配置web.xml   加上下面这段就报错,不加就没问题
<filter>
<filter-name> Set   Character   Encoding </filter-name>
<filter-class> com.vivian8117.struts.SetCharacterEncodingFilter </filter-class>
</filter>
<filter-mapping>
<filter-name> Set   Character   Encoding </filter-name>
<url-pattern> /* </url-pattern>
</filter-mapping>
4.打开tomcat的server.xml文件，找到区块，加入如下一行：  
URIEncoding= "UTF-8 "
完整的应如下：
<Connector   port= "8080 "   maxThreads= "150 "   minSpareThreads= "25 "   maxSpareThreads= "75 "   enableLookups= "false "   redirectPort= "8443 "   acceptCount= "100 "   debug= "0 "   connectionTimeout= "20000 "   disableUploadTimeout= "true "   URIEncoding= "UTF-8 "/>
我的web.xml是
<?xml   version= "1.0 "   encoding= "UTF-8 "?>
<web-app   xmlns= "http://java.sun.com/xml/ns/j2ee "   xmlns:xsi= "http://www.w3.org/2001/XMLSchema-instance "   version= "2.4 "   xsi:schemaLocation= "http://java.sun.com/xml/ns/j2ee       http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd ">
    <display-name> vivian8117 </display-name>
<filter>
<filter-name> Set   Character   Encoding </filter-name>
<filter-class> com.vivian8117.struts.SetCharacterEncodingFilter </filter-class>
</filter>
<filter-mapping>
<filter-name> Set   Character   Encoding </filter-name>
<url-pattern> /* </url-pattern>
</filter-mapping>
    <servlet>
        <servlet-name> action </servlet-name>
<servlet-class> org.apache.struts.action.ActionServlet </servlet-class>
        <init-param>
            <par