解决前端到后台Controller的get/post乱码问题

<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>forceRequestEncoding</param-name>
      <param-value>true</param-value>
  </init-param>
  <init-param>
      <param-name>forceResponseEncoding</param-name>
      <param-value>true</param-value>
  </init-param>
</filter>
<filter-mapping>
  <filter-name>CharacterEncodingFilter</filter-name>
  <url-pattern>/*</url-pattern>
</filter-mapping>