快速解决owin返回json字符串多带了双引号”多了重string转义字符串

解决方法: [HttpGet] public HttpResponseMessage getsystemtime() { cltime time = new cltime(); time.datetime = DateTime.Now.ToString(yyyy-MM-dd HH:mm:ss); string relsut = JsonConvert.SerializeObject(time); var resp = new HttpResponseMessage { Content = new StringContent