winform訪問webservice

⑴ c#winform怎麼調用webservice

建議這樣試試看：

親測可用，主要還是Url的拼接，這個需要客戶給出格式

1. /// <summary>

2. /// 與客戶WMS系統通訊獲取數據

3. /// </summary>

4. /// <param name="url">介面，需要拼接成客戶規定的格式</param>

5. /// <param name="data">請求數據，需要拼接成客戶規定的Json格式</param>

6. /// <returns>全部數據</returns>

7. public string Post(string url, string data)

8. {

9. try

10. {

11. //創建請求

12. HttpWebRequest request = WebRequest.Create(url) as HttpWebRequest;

13. //設置請求方法

14. request.Method = "Post";

15. request.Referer = "";

16. //將數據轉換為UTF8位元組流

17. byte[] bytes = Encoding.UTF8.GetBytes(data);

18. //設置發送的位元組數

19. request.ContentLength = bytes.Length;

20. //設置發送內容格式

21. request.ContentType = "application/json; charset=UTF-8";

22. //獲取用於寫入請求數據的流對象

23. Stream stream = request.GetRequestStream();

24. //向當前流寫入數據，發送請求

25. stream.Write(bytes, 0, bytes.Length);

26. //接收返迴流，通過Web訪問對象獲取響應內容

27. HttpWebResponse response = (HttpWebResponse)request.GetResponse();

28. //通過響應內容流創建StreamReader對象

29. //StreamReader sr = new StreamReader(request.GetRequestStream(), Encoding.UTF8);//寫錯，導致一直讀取不了數據

30. StreamReader sr = new StreamReader(response.GetResponseStream(), Encoding.UTF8);

31. //讀取所有內容

32. string retString = sr.ReadToEnd();

33. //關閉流

34. sr.Close();

35. stream.Close();

36. if (response != null)

37. {

38. //關閉響應流

39. response.Close();

40. }

41. if (request != null)

42. {

43. //取消請求

44. request.Abort();

45. }

46. return retString;

47. }

48. catch (Exception ex)

49. {

50. throw ex;

51. }

52. }

53. }