接口返回json串乱码问题

1.在代码中

produces = "application/json;charset=UTF-8"

设置返回值类型，编码格式

2.在web.xml中

 <!--解决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></filter><filter-mapping><filter-name>CharacterEncodingFilter</filter-name><url-pattern>/*</url-pattern></filter-mapping>

3.在sping-mvc.xml中配置消息过滤器