我正在编写一个类,使用libcurl2创建一个简单的http get请求。 我得到以下错误:Libcurl错误将接收到的数据写入磁盘/应用程序失败
Libcurl error Failed writing received data to disk/application
我是相当新的C++,还是学习,但我猜它是与访问修饰符或范围
我希望有人能帮助我,与此。
类HttpConnection的
#include "HTTPconnection.h"
#include <iostream>
#include <string>
using namespace httptest;
HTTPconnection::HTTPconnection()
{
curl_global_init(CURL_GLOBAL_DEFAULT);
curl = curl_easy_init();
}
size_t HTTPconnection::write_callback(char * data, size_t
size, size_t nmemb, std::string * writerData)
{
if (writerData == NULL)
return 0;
writerData->append(data, size*nmemb);
return size * nmemb;
}
std::string HTTPconnection::createConnection(const char *url, const char *proxy)
{
curl_easy_setopt(HTTPconnection::curl, CURLOPT_URL, url);
curl_easy_setopt(HTTPconnection::curl, CURLOPT_WRITEFUNCTION, &HTTPconnection::write_callback);
curl_easy_setopt(HTTPconnection::curl, CURLOPT_WRITEDATA, &HTTPconnection::buffer);
res = curl_easy_perform(HTTPconnection::curl);
std::cout << curl_easy_strerror(res);
return buffer;
}
HTTPconnection::~HTTPconnection()
{
curl_easy_cleanup(curl);
curl_global_cleanup();
}
HTTPconnection.h
#ifndef HTTPconnection_H
#define HTTPconnection_H
#include <string>
#include "libcurl/include/curl/curl.h"
#ifdef _DEBUG
#pragma comment(lib, "libcurl/lib/libcurl_a_debug.lib")
#else
#pragma comment(lib, "libcurl/lib/libcurl_a.lib")
#endif
namespace httptest
{
class HTTPconnection
{
public:
//Default Constructor
HTTPconnection();
std::string createConnection(const char *url, const char *proxy);
//Destructor
~HTTPconnection();
private:
//methods
size_t write_callback(char *data, size_t size, size_t nmemb, std::string *writerData);
//members
std::string buffer;
CURL *curl;
CURLcode res;
};
}
#endif // !HTTPconnection_H