springMVC过滤器解决乱码问题

springMVC项目中，在web.xml文件中添加如下代码：

<!-- spring提供的过滤器解决乱码问题 -->

  <filter>    

    <filter-name>CharacterEncoding</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>    

</filter>    

<filter-mapping>    

    <filter-name>CharacterEncoding</filter-name>    

    <url-pattern>/*</url-pattern>    

</filter-mapping>