JSON parse error: Unrecognized token XXX: was expecting (‘true‘, ‘false‘ or ‘null‘);_json parse error unrecognized token-CSDN博客

网站介绍:文章浏览阅读1.6w次,点赞6次,收藏13次。前端ajax请求java后台,后台返回给前台500错误,返回结果为{"result":false,"code":500,"info":"JSON parse error: Unrecognized token 'username': was expecting ('true', 'false' or 'null'); nested exception is com.fasterxml.jackson.core.JsonParseException: Unrecognized token 'usern_json parse error unrecognized token