web.xml中

<!-- Encoding Filters to ensure all data is utf-8 -->

<filter>
   <filter-name>characterEncodingFilter</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>
    <init-param>
        <param-name>forceEncoding</param-name>
        <param-value>true</param-value>
     </init-param>

</filter>

<filter-mapping>

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