在项目的web.xml文件上添加：

<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>