C++使用curl发送post请求

发送post请求代码如下：

#include
#include
#include
using namespace std;
//get请求和post请求数据响应函数
size_t req_reply(void *ptr, size_t size, size_t nmemb, void *stream)
{//在注释的里面可以打印请求流，cookie的信息//cout << "----->reply" << endl;string *str = (string*)stream;//cout << *str << endl;(*str).append((char*)ptr, size*nmemb);return size * nmemb;
}
//http POST请求  
CURLcode curl_post_req(const string &url, const string &postParams, string &response)
{// curl初始化  CURL *curl = curl_easy_init();// curl返回值 CURLcode res;if (curl){// set params//设置curl的请求头struct curl_slist* header_list = NULL;header_list = curl_slist_append(header_list, "User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; Trident/7.0; rv:11.0) like Gecko");header_list = curl_slist_append(header_list, "Content-Type:application/x-www-form-urlencoded; charset=UTF-8");curl_easy_setopt(curl, CURLOPT_HTTPHEADER, header_list);//不接收响应头数据0代表不接收 1代表接收curl_easy_setopt(curl, CURLOPT_HEADER, 0);//设置请求为post请求curl_easy_setopt(curl, CURLOPT_POST, 1);//设置请求的URL地址curl_easy_setopt(curl, CURLOPT_URL, url.c_str());//设置post请求的参数curl_easy_setopt(curl, CURLOPT_POSTFIELDS, postParams.c_str());//设置ssl验证curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, false);curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, false);//CURLOPT_VERBOSE的值为1时，会显示详细的调试信息curl_easy_setopt(curl, CURLOPT_VERBOSE, 0);curl_easy_setopt(curl, CURLOPT_READFUNCTION, NULL);//设置数据接收和写入函数curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, req_reply);curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *)&response);curl_easy_setopt(curl, CURLOPT_NOSIGNAL, 1);//设置超时时间curl_easy_setopt(curl, CURLOPT_CONNECTTIMEOUT, 6);curl_easy_setopt(curl, CURLOPT_TIMEOUT, 6);// 开启post请求res = curl_easy_perform(curl);}//释放curl curl_easy_cleanup(curl);return res;
}
int main()
{string url_post0 = "http://httpbin.org/post";string paramsLogin0 = "key1=value1&key2=value2";string resPost0;auto res3 = curl_post_req(url_post0, paramsLogin0, resPost0);if (res3 == CURLE_OK){cout << resPost0 << endl;}getchar();return 0;
}

运行结果为：

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