web.xml配置,避免乱码

用springMVC,在web.xml中配置如下代码，对所有请求进行拦截 并设置编码，避免请求乱码：

<!-- 编码Filter 加载配置 Start -->  <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>  </filter>  <filter-mapping>      <filter-name>SetCharacterEncoding</filter-name>      <url-pattern>/*</url-pattern>  </filter-mapping>