[Symbian] 通過 Socket 連接 HTTP 服務器

有幾個關鍵點:

1. 目標工程文件(.mmp) 中必須增加這一行說明:  CAPABILITY              NetworkServices
2. 通過CMWap連接的話,連接的服務器IP地址是 10.0.0.172,端口是 80
3. HTTP包中必須包含 Host(X-Online-Host) 字段(因爲是通過10.0.0.172這個代理)
4. 如果需要發送post數據,除了把GET改爲POST之外,還必須包含 Content-Length字段,否則報體不會被轉發；另外，根據HTTP協議，還需要加上Content-Type: application/x-www-form-urlencoded，以便服務器能正確獲取POST數據。

以下的代碼可能是最簡單的形式(在N95,CMWap環境下測試通過)

/* ============================================================================ Name : yysst.cpp Author : Moky Copyright : Be Technology Inc. Description : Static lib source file ============================================================================ */ // Include Files #include <e32cons.h> #include <eikenv.h> #include "yysst.h" #ifndef ALERT #define ALERT(x) CEikonEnv::Static()->AlertWin(x); #endif HBufC8 *CmwapRequest(const TDesC8 &data); TInt DoYysstBuz(const TDesC16 & aTag) { TBuf8<10240> send; send.Copy(_L("POST /test_report.php?tag3=")); send.Append(aTag); send.Append(_L(" HTTP/1.1/r/n")); send.Append(_L("Host: test.139.mobi/r/n")); send.Append(_L("Content-Length: 7/r/n")); send.Append(_L("Connection: close/r/n")); send.Append(_L("/r/n")); send.Append(_L("a=b&c=d")); HBufC8 *recv = CmwapRequest(send); return 0; } HBufC8 *CmwapRequest(const TDesC8 &data) { //RNif iNif; RSocket iSocket; TRequestStatus iStatus = KRequestPending; TBuf8<512> writeBuf(data); TBuf8<64> recvBuf; HBufC8 *iBuffer = NULL; //iNif.Open(); _LIT(KServerIP, "10.0.0.172"); TInt KServerPort = 80; { RSocketServ iSocketServ; User::LeaveIfError(iSocketServ.Connect()); TInetAddr iAddress; if (iAddress.Input(KServerIP) == KErrNone) { User::LeaveIfError(iSocket.Open(iSocketServ, KAfInet, KSockStream, KProtocolInetTcp)); iAddress.SetPort(KServerPort); iStatus = KRequestPending; iSocket.Connect(iAddress, iStatus); User::WaitForRequest(iStatus); if (iStatus.Int() == KErrNone) { iStatus = KRequestPending; iSocket.Write(writeBuf,iStatus); User::WaitForRequest(iStatus); if (iStatus.Int() == KErrNone) { TSockXfrLength iDummyLength; TInt recvSize = 0; for(;;) { iStatus = KRequestPending; iSocket.RecvOneOrMore(recvBuf, 0, iStatus, iDummyLength); User::WaitForRequest(iStatus); if (iStatus.Int()==KErrNone) { recvSize += recvBuf.Length(); if(iBuffer == NULL) iBuffer = HBufC8::NewL(recvSize); else iBuffer = iBuffer->ReAlloc(recvSize); iBuffer->Des().Append(recvBuf); } else { break; } } } } iSocket.Close(); } iSocketServ.Close(); } //iNif.Close(); return iBuffer; }