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利用libcurl进行post

逛百度知道看到有个人提问:http://zhidao.baidu.com/question/1447092283140740700

C写HTTP应用只有疯子才会老老实实的SOCKET编程吧?我后来还是没给他写,因为就算是libcurl我也没下载安装。下面的哥们的用C#几行代码就搞定了,只需引入个类库一切就唾手可得,这就是OOP的好处。后来闲得无聊,还是下载了个libcurl库配置到MinGW中,简单写了个POST的例子。

代码如下:

#include <stdio.h>#include <curl/curl.h>//linker options: -lcurl -lcurldllsize_t write_function(void *buff, size_t size, size_t nmemb, FILE *fp){    //回调函数,下载的数据通过这里写入本地文件    fwrite(buff, size, nmemb, fp);    return size*nmemb;}int main(int argc, char* argv[]){    CURL *curl = NULL;    CURLcode code = 0;    char url[] = "http://www.lolhelper.cn/rank/rank.php";    char formdata[] = "daqu=%E7%94%B5%E4%BF%A1%E4%B8%80&nickname=%E4%BC%A0%E5%A5%87%E8%8B%B1%E9%9B%84";    char *filename = "c:\\post.html";    FILE *fp = fopen(filename, "w");    curl = curl_easy_init();    if(curl){        //设置POST协议、URL和FORM_DATA        curl_easy_setopt(curl, CURLOPT_POST, 1);        curl_easy_setopt(curl, CURLOPT_URL, url);        curl_easy_setopt(curl, CURLOPT_POSTFIELDS, formdata);        //设置数据回调        curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_function);        curl_easy_setopt(curl, CURLOPT_WRITEDATA, fp);        code = curl_easy_perform(curl);        if(code == CURLE_OK){            ;;        }        curl_easy_cleanup(curl);    }    fclose(fp);    return 0;}

 

利用libcurl进行post