Unity新的网络请求方式UnityWebRequest（5.2版本以后）

Get方式：

1. private IEnumerator SendUrl(string url)
2. {
3. using (UnityWebRequest www = UnityWebRequest.Get(url))
4. {
5. yield return www.Send();
6. if (www.error != null)
7. {
8. Debug.Log(www.error);
9. }
10. else
11. {
12. if (www.responseCode == 200)//200表示接受成功
13. {
14. Debug.Log(www.downloadHandler.text);
15. }
16. }
17. }
18. }

Post方式：

1. public IEnumerator PostUrl(string url, string postData)
2. {
3. using (UnityWebRequest www = new UnityWebRequest(url,"POST"))
4. {
5. byte[] postBytes = System.Text.Encoding.UTF8.GetBytes(postData);
6. www.uploadHandler = (UploadHandler)new UploadHandlerRaw(postBytes);
7. www.downloadHandler = (DownloadHandler)new DownloadHandlerBuffer();
8. www.SetRequestHeader("Content-Type", "application/json");
9. yield return www.Send();
10. if (www.isError)
11. {
12. Debug.Log(www.error);
13. }
14. else
15. {
16. // Show results as text
17. if (www.responseCode == 200)
18. {
19. Debug.Log(www.downloadHandler.text);
20. }
21. }
22. }
23. }
24. private IEnumerator PostUrl(string url, WWWForm form, Action<string> getResult)
25. {
26. using (UnityWebRequest www = UnityWebRequest.Post(url, form))
27. {
28. yield return www.Send();
29. if (www.isError)
30. {
31. yield return www.error;
32. }
33. else
34. {
35. if (www.responseCode == 200)
36. {
37. getResult(www.downloadHandler.text);
38. }
39. }
40. }
41. }