Invalid mime type "application/json, application/json": Invalid token chara

org.springframework.util.InvalidMimeTypeException: Invalid mime type “application/json, application/json”: Invalid token character ‘,’ in token “json, application/json”
报此等错误，请检查：
{“application/json;charset=utf-8”}是否写正确


将Spring-web更改一下即可

修改后即可：