libcurl抓取base64编码的页面内容

来源：互联网发布：福建广电网络营业厅编辑：程序博客网时间：2024/04/29 16:51

使用之前需安装libcurl，代码如下：

1.LibcurlUtil.h

#ifndef LIBCURLUTIL_H_

#define LIBCURLUTIL_H_
#include "curl/curl.h"
#include <string>
class CurlUtil{
public:
static size_t asynHttpRequestCallback(void *ptr, size_t size, size_t nmemb, void *stream);
static void asynHttpRequest(std::string url, bool useGzip);
};

#endif

2.LibcurlUtil.cpp

#include "LibcurlUtil.h"
FILE *fp;
size_t CurlUtil::asynHttpRequestCallback(void *ptr, size_t size, size_t nmemb, void *stream){
   size_t written = fwrite((char*)ptr, size, nmemb, (FILE *)fp);
   //fprintf(stderr,"written size %d\n",written);
   return written;
}

void CurlUtil::asynHttpRequest(std::string url, bool useGzip){
   CURL* curl;
   fp = fopen("libcurlfile.txt","wb");
   if(fp == NULL)
   {
       curl_easy_cleanup(curl);
       fprintf(stderr,"Failed to open file libcurlfile.txt\n");
       return ;
   }
   curl = curl_easy_init();
   curl_easy_setopt(curl, CURLOPT_URL, url.c_str());
   if (useGzip) {
       curl_easy_setopt(curl, CURLOPT_ENCODING, "gzip");
   }
   curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, asynHttpRequestCallback);
   curl_easy_perform(curl);
   curl_easy_cleanup(curl);
   fclose(fp);
}

3.main.cpp

int main(int args,char *argv[]){

CurlUtil::asynHttpRequest("http://www.yoururl.com/HighKWordlist.txt",true);

return 0;

}

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转载请注明出处：山水间博客，http://blog.csdn.net/linyanwen99/article/details/7730415