Request Headers:
User-Agent: Fiddler
Host: localhost:3248
Content-Type: application/json; charset=utf-8
Content-Length: 63
要加上Content-Type: application/json; charset=utf-8，要不是JSON沒效
Request Body
{"UserID":4,"UserName":"Parry","UserEmail":"Parry@cnblogs.com"}
緊記，不要寫成這樣：[{"UserID":4,"UserName":"Parry","UserEmail":"Parry@cnblogs.com"}]