Spring MVC解决POST请求中文乱码问题

Spring MVC提供了ChracterEncodingFilter处理POST请求中文乱码问题，只需要在web.xml中配置即可；

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