libcurl库的编译

#include<iostream>
#include<string>
#include"curl/curl.h"
using namespace std;

class CurlAutoRelease
{
public:
    CurlAutoRelease(){    p = curl_easy_init();}
    ~CurlAutoRelease(){    curl_easy_cleanup(p);}
    CURL *GetPtr(){    return p;}
protected:
    CURL* p;
};

UINT CurlWriteBuffer(char *buffer,UINT size,UINT nmemb,std::string* stream)
{
    UINT sizes = size*nmemb;
    if(stream == NULL) return 0;
    stream->append(buffer,sizes);
    return sizes;
}

int main()
{
    curl_global_init(CURL_GLOBAL_DEFAULT); 
    
    std::string szUrl("www.baidu.com");
    std::string szContent("");

    try
    {
        CurlAutoRelease curlAutoRelease;
        CURL* curl = curlAutoRelease.GetPtr();
        CURLcode res;

        std::string strResult;
        {
            curl_easy_setopt(curl,CURLOPT_URL,szUrl.c_str());
            curl_easy_setopt(curl,CURLOPT_VERBOSE,1);                                //打开调试
            curl_easy_setopt(curl,CURLOPT_POSTFIELDS,szContent.c_str());            //post请求    
            curl_easy_setopt(curl,CURLOPT_POSTFIELDSIZE,szContent.length());
            curl_easy_setopt(curl,CURLOPT_WRITEFUNCTION,CurlWriteBuffer);            //写回调
            curl_easy_setopt(curl,CURLOPT_WRITEDATA,&strResult);                    //写存储
            curl_easy_setopt(curl,CURLOPT_TIMEOUT,10);                                //最长执行时间

            res = curl_easy_perform(curl);
        }

        if(res != CURLE_OK)
        {
            //投递Http requeset 失败
            std::cout<<"投递Http请求失败！"<<std::endl;
            return -1;
        }
        else
        {
            std::cout<<strResult<<std::endl;
        }
    }
    catch (...)
    {
        //出Exception
        std::cout<<"HttpRqWorker::HandleTask出现了Exception!!"<<std::endl;
    }


    curl_global_cleanup();
    return 0;
}