表單提交controller獲得中文引數後亂碼解決方案，缺一不可：

1    <%@ page language="java"contentType="text/html; charset=UTF-8"pageEncoding="UTF-8"%>

2  <formaction="${ctx}/user/addUser"name="userForm"method="post">   一定要post方式，get方式會亂碼

3   修改web.xml，增加編碼過濾器，如下（注意，需要設定forceEncoding引數值為true）

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