1 // WinHttpTest.cpp : 定义控制台应用程序的入口点。  2 //  3 //#include <stdafx.h>  4 #include <vector>  5 #include <winsock2.h>  6 #include <Winhttp.h>  7 //#include <urlmon.h>  8 #include <windows.h>  9 #include <iostream> 10 #include <fstream> 11 #include <string> 12 #include "AtlBase.h" 13 #include "AtlConv.h" 14 using namespace std; 15 #pragma comment(lib, "winhttp")//这一句不能省略 16 string GetHost(string strUrl) 17 { 18    int indexHttp = strUrl.find("http://"); 19    if(indexHttp != -1) 20    { 21        strUrl = strUrl.substr(7); 22    } 23    else 24        return ""; 25    int indexSlash = strUrl.find("/"); 26    if(indexSlash != -1) 27    { 28        return strUrl.substr(0, indexSlash); 29    } 30    else 31        return strUrl; 32    return ""; 33 } 34 string GetRequestStr(string strUrl) 35 { 36    int indexHttp = strUrl.find("http://"); 37    if(indexHttp != -1) 38    { 39        strUrl = strUrl.substr(7); 40    } 41    else 42        return ""; 43    int indexSlash = strUrl.find("/"); 44    if(indexSlash == -1) 45    { 46        return ""; 47    } 48    else 49        return strUrl.substr(indexSlash); 50 } 51 void GetHtml(string strUrl) 52 { 53    string strHost = GetHost(strUrl);//获取Host 54    string strRequestStr = GetRequestStr(strUrl);//获取请求路径 55    USES_CONVERSION; 56     //2014年7月9日10:02:29 57     //LPCWSTR的定义 typedef const wchar_t* LPCWSTR; 58     //LPSTR的定义   typedef char* LPCWSTR; 59     //LPWSTR的定义  typedef wchar_t* LPWSTR; 60    LPCWSTR host = A2CW(strHost.c_str());//string转换为常量指针类型 61    LPCWSTR requestStr = A2CW(strRequestStr.c_str()); 62    //Variables 63    DWORD dwSize = 0; 64    BOOL  bResults = FALSE; 65     66    //Note the definition of HINTERNET 67    HINTERNET  hSession = NULL, 68        hConnect = NULL, 69        hRequest = NULL; 70         71    //2014年7月9日10:39:33 72    //Search the WinHttp API 73    //what to do when call the function WinHttpOpen？ 74    // Use WinHttpOpen to obtain a session handle. 75    hSession = WinHttpOpen(L"WinHTTP Example/1.0", 76        WINHTTP_ACCESS_TYPE_DEFAULT_PROXY, 77        WINHTTP_NO_PROXY_NAME, 78        WINHTTP_NO_PROXY_BYPASS, 0); 79  // Specify an HTTP server. 80    if (hSession) 81        hConnect = WinHttpConnect(hSession, host, 82        INTERNET_DEFAULT_HTTP_PORT, 0); 83  // Create an HTTP request handle. 84    if (hConnect) 85        hRequest = WinHttpOpenRequest(hConnect, L"GET", requestStr, 86        NULL, WINHTTP_NO_REFERER, 87        NULL, 88        NULL); 89  // Send a request. 90    if (hRequest) 91        bResults = WinHttpSendRequest(hRequest, 92        WINHTTP_NO_ADDITIONAL_HEADERS, 93        0, WINHTTP_NO_REQUEST_DATA, 0, 94        0, 0); 95 // End the request. 96    if (bResults) 97        bResults = WinHttpReceiveResponse(hRequest, NULL); 98         99 //2014年7月9日16:35:40  100 //获取请求Header101      LPVOID lpOutBuffer = NULL;102      int temp;103      if (bResults)104     {105         //此处的参数与获取响应的Header参数不同106         WinHttpQueryHeaders( hRequest, WINHTTP_QUERY_RAW_HEADERS_CRLF|WINHTTP_QUERY_FLAG_REQUEST_HEADERS,107                              WINHTTP_HEADER_NAME_BY_INDEX, NULL,108                              &dwSize, WINHTTP_NO_HEADER_INDEX);109 110         // Allocate memory for the buffer.111         if( GetLastError() == ERROR_INSUFFICIENT_BUFFER )112         {113             temp = dwSize/sizeof(WCHAR);114             lpOutBuffer = new WCHAR[temp];115 116             // Now, use WinHttpQueryHeaders to retrieve the header.117             bResults = WinHttpQueryHeaders( hRequest,118                                        WINHTTP_QUERY_RAW_HEADERS_CRLF|WINHTTP_QUERY_FLAG_REQUEST_HEADERS,119                                        WINHTTP_HEADER_NAME_BY_INDEX,120                                        lpOutBuffer, &dwSize,121                                        WINHTTP_NO_HEADER_INDEX);122         }123         124         125     }126     //两种输出方式。。输出header，此处cout行不通127     wcout<<(WCHAR*)lpOutBuffer;128     if (bResults)129        printf("\n%S",lpOutBuffer);130        131     delete [] lpOutBuffer;132  133  //2014年7月9日14:43:20 获取响应头部134      if (bResults)135     {136         WinHttpQueryHeaders( hRequest, WINHTTP_QUERY_RAW_HEADERS_CRLF,137                              WINHTTP_HEADER_NAME_BY_INDEX, NULL,138                              &dwSize, WINHTTP_NO_HEADER_INDEX);139 140         // Allocate memory for the buffer.141         if( GetLastError() == ERROR_INSUFFICIENT_BUFFER )142         {143             temp = dwSize/sizeof(WCHAR);144             lpOutBuffer = new WCHAR[temp];145 146             // Now, use WinHttpQueryHeaders to retrieve the header.147             bResults = WinHttpQueryHeaders( hRequest,148                                        WINHTTP_QUERY_RAW_HEADERS_CRLF,149                                        WINHTTP_HEADER_NAME_BY_INDEX,150                                        lpOutBuffer, &dwSize,151                                        WINHTTP_NO_HEADER_INDEX);152         }153         154         155     }156     //两种输出方式。。输出header，此处cout行不通157     wcout<<(WCHAR*)lpOutBuffer;158     if (bResults)159        printf("\n%S",lpOutBuffer);160        161     delete [] lpOutBuffer;162 }163 int _tmain(int argc, _TCHAR* argv[])164 {165 166    GetHtml("http://bbs.bccn.net/thread-294526-1-1.html");167    system("pause");168    return 0;169 }