springmvc-提交数据出现乱码

1 <form action="${pageContext.request.contextPath}/role/save"
2                 method="post">

 1 <!--解决乱码的过滤器-->
 2 <filter>
 3     <filter-name>CharacterEncodingFilter</filter-name>
 4     <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
 5 <!--   内容编码关系-->
 6     <init-param>
 7         <param-name>encoding</param-name>
 8         <param-value>UTF-8</param-value>
 9     </init-param>
10 </filter>
11   <filter-mapping>
12       <filter-name>CharacterEncodingFilter</filter-name>
13 <!--      所有的请求都通过这里-->
14       <url-pattern>/*</url-pattern>
15   </filter-mapping>