工作需要筆記

注意jQuery內傳的參數名稱和WebService的參數名稱要一致！

The Other Reason

1. Not using JSON.stringify to pass parameter value.
2. If you not supply type in jQuery, it will use GET method which is not accept in your webservice configuration. Add  ( type : "POST ) in your jQuery code to use POST method.
3. You are actually request data from different domain. Cross Domain Request (CORS)which is not allowed. Please read here
4. Content type not supply or not correct. Use "application/json; charset=utf-8"
5. DataType not not supply or not correct. Use json or jsonp

http://www.developersnote.com/2014/01/solved-jquery-ajax-500-internal-server.html#.VadEBKSqpBc