struts2乱码

乱码解决方法：
   一：首先从action跳转到jsp页面，即初始化页面是从action开始的，不是直接访问的jsp页面。
   二：在web.xml中加入Filter(需导入sping的jar包)
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5"
xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
<!-- Spring 字符集Filter -->
<filter>
  <filter-name>setCharacterEncoding</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>

<filter-mapping>
  <filter-name>setCharacterEncoding</filter-name>
  <url-pattern>/*</url-pattern>
</filter-mapping>

<filter>
     <filter-name>struts2</filter-name>
     <filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class>
</filter>
    <filter-mapping>
        <filter-name>struts2</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>
</web-app>