http://blog.csdn.net/xxkku521/article/details/16864759

Delphi IdHttp组件+IdHttpServer组件实现文件下载服务

2013-11-21 18:15 2624人阅读 评论(0) 收藏 举报

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DELPHI（10） 

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1. uses idhttp,IdHTTPServer;
2. //idhttp组件提交下载请求
3. procedure TVodService.Button3Click(Sender: TObject);
4. var
5. h:TIdhttp;
6. MyStream:TMemoryStream;
7. url:string;
8. begin
9. MyStream:=TMemoryStream.Create;
10. h:=Tidhttp.Create(nil);
11. url:=‘http://192.168.0.254:9003/GetIni‘;//请求地址
12. try
13. h.get(url,MyStream);//提交请求     except
14. Application.Messagebox(‘网络出错，请检查网络连接‘,‘出错框‘,MB_OK+MB_ICONERROR) ;
15. MyStream.Free;
16. h.free;
17. exit;
18. end;
19. MyStream.SaveToFile(extractfilepath(application.exename)+‘System.ini‘);
20. MyStream.Free;
21. h.free;
22. end;
23. //IdHttpSever组件响应请求
24. procedure TVodService.DataModuleCreate(Sender: TObject);//初始化IdHttpServer组件
25. var
26. hport:integer;
27. Binding : TIdSocketHandle;
28. begin
29. try
30. VodHttpServer.Bindings.Clear;
31. Binding := VodHttpServer.Bindings.Add;
32. Binding.Port:=9003;
33. binding.IP:=‘192.168.0.254‘;
34. VodHttpServer.Active:=true;
35. except
36. on e:Exception do
37. begin
38. FrmMain_VodSer.write_Logfile(‘加载APP设置error ‘+e.message);
39. end;
40. end;
41. end;
42. procedure TVodService.VodHttpServerCommandGet(AThread: TIdPeerThread;
43. ARequestInfo: TIdHTTPRequestInfo; AResponseInfo: TIdHTTPResponseInfo);//响应请求
44. var
45. ByteSent: Cardinal;
46. LocalDoc:string;
47. tempstr,ips:string;
48. len,sport:integer;
49. begin
50. tempstr:=ARequestInfo.Document; //获取请求字符串
51. ips:=TIdIOHandlerSocket(AThread.Connection.IOHandler).Binding.PeerIP;//获取请求地址
52. sport:=TIdIOHandlerSocket(AThread.Connection.IOHandler).Binding.PeerPort;//获取请求端口
53. if fileexists(extractfilepath(application.exename)+‘System.ini‘) then
54. begin
55. LocalDoc:=extractfilepath(application.exename)+‘System.ini‘;
56. ByteSent :=VodHttpServer.ServeFile(AThread, AResponseInfo, LocalDoc);
57. end else
58. begin
59. Application.Messagebox(‘没有找到文件System.ini！‘,‘提示框‘,MB_OK+MB_ICONERROR) ;
60. end;
61. end;