关于使用curl下载网页源码中文乱码问题!

 关于使用libcurl下载网页源码中文乱码问题!

参考了这位兄弟的：http://blog.csdn.net/malihong1/article/details/50480420，可能他没继续找到方法。

借用了http://www.cnblogs.com/iRoad/p/4105172.html的函数

直接改官网的demo https://curl.haxx.se/libcurl/c/example.html，https.c 代码如下：

/*************************************************************************** *                                  _   _ ____  _ *  Project                     ___| | | |  _ \| | *                             / __| | | | |_) | | *                            | (__| |_| |  _ <| |___ *                             \___|\___/|_| \_\_____| * * Copyright (C) 1998 - 2015, Daniel Stenberg, <[e-mail]>, et al. * * This software is licensed as described in the file COPYING, which * you should have received as part of this distribution. The terms * are also available at https://curl.haxx.se/docs/copyright.html. * * You may opt to use, copy, modify, merge, publish, distribute and/or sell * copies of the Software, and permit persons to whom the Software is * furnished to do so, under the terms of the COPYING file. * * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY * KIND, either express or implied. * ***************************************************************************//* <DESC> * Simple HTTPS GET * </DESC> */// C 运行时头文件#include <atlstr.h>#include <WinINet.h>#include <string>#include <stdio.h>#include <curl/curl.h>using namespace std;string UTF8ToGBK(const std::string& strUTF8)  {      int len = MultiByteToWideChar(CP_UTF8, 0, strUTF8.c_str(), -1, NULL, 0);      WCHAR* wszGBK = new WCHAR[len+1];    memset(wszGBK, 0, len * 2 + 2);      MultiByteToWideChar(CP_UTF8, 0, (LPCSTR)(LPCTSTR)strUTF8.c_str(), -1, wszGBK, len);      len = WideCharToMultiByte(CP_ACP, 0, wszGBK, -1, NULL, 0, NULL, NULL);      char *szGBK = new char[len + 1];      memset(szGBK, 0, len + 1);      WideCharToMultiByte(CP_ACP,0, wszGBK, -1, szGBK, len, NULL, NULL);       std::string strTemp(szGBK);      delete[]szGBK;      delete[]wszGBK;      return strTemp;  } /**@brief  char*数据接收回调函数，仅适用stream实际类型是std::string*/static size_t DataReceiveCallback(void *ptr, size_t size, size_t nmemb, void *stream) {    size_t len = size * nmemb;    std::string* buffer = reinterpret_cast<std::string*>(stream);    if (buffer)        buffer->append((char*)ptr, len);    return len;}int main(void){  CURL *curl;  CURLcode res;  std::string data;  curl_global_init(CURL_GLOBAL_DEFAULT);  curl = curl_easy_init();  if(curl) {    curl_easy_setopt(curl, CURLOPT_URL, "https://v.qq.com/x/cover/jwplwx9ootoigud.html");#ifdef SKIP_PEER_VERIFICATION    /*     * If you want to connect to a site who isn't using a certificate that is     * signed by one of the certs in the CA bundle you have, you can skip the     * verification of the server's certificate. This makes the connection     * A LOT LESS SECURE.     *     * If you have a CA cert for the server stored someplace else than in the     * default bundle, then the CURLOPT_CAPATH option might come handy for     * you.     */    curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0L);#endif#ifdef SKIP_HOSTNAME_VERIFICATION    /*     * If the site you're connecting to uses a different host name that what     * they have mentioned in their server certificate's commonName (or     * subjectAltName) fields, libcurl will refuse to connect. You can skip     * this check, but this will make the connection less secure.     */    curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0L);#endif    // 响应数据回调    curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, DataReceiveCallback);    curl_easy_setopt(curl, CURLOPT_WRITEDATA, &data);        /* Perform the request, res will get the return code */    res = curl_easy_perform(curl);    /* Check for errors */    if(res != CURLE_OK)      fprintf(stderr, "curl_easy_perform() failed: %s\n",              curl_easy_strerror(res));    string strGBK = UTF8ToGBK(data);    /* always cleanup */    curl_easy_cleanup(curl);  }  curl_global_cleanup();  return 0;}

另外因为使用了atl,会报错错误 1 error C1189: #error :  ATL requires C++ compilation (use a .cpp suffix)c:\program files (x86)\microsoft visual studio 10.0\vc\atlmfc\include\atlstr.h16

只需要经.c后缀改为cpp后缀就可以了。

我下载的curl：

官网下载curl，编译后(curl\curl-7.52.1\projects\Windows\下有win项目的解决方案)，在这个目录下curl\curl-7.52.1\builds\libcurl-vc10-x86-release-dll-ipv6-sspi-winssl\ 存在三个文件夹

--bin

--curl.exe

--libcurl.dll(需要拷贝到运行目录)

include

--curl(头文件目录)

lib

--libcurl.lib

其他没怎么配置，项目需要配置引用curl路径目录，库目录。