C++ 实现读取URL中的源码

最新推荐文章于 2022-10-25 10:41:24 发布

Melicent1

最新推荐文章于 2022-10-25 10:41:24 发布

阅读量3.6k

点赞数 1

CC 4.0 BY-SA版权

分类专栏：工作

本文链接：https://blog.youkuaiyun.com/lanjiangzhou/article/details/44784321

工作专栏收录该内容

11 篇文章

订阅专栏

本文展示了一个使用C++进行HTTP请求的例子，通过Windows API实现网络数据获取，并将响应内容输出到控制台。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

#include <stdio.h>
#include <windows.h>
#include <wininet.h>
#pragma comment(lib,"Wininet.lib")
#include <vector>
using namespace std; 
int main(int argc, char* argv[])
{
    vector<char> v;
    CHAR szUrl[] = "http://117.121.49.45/service/iss?appkey=5rh55ljf6sijrmp4c23xyoaebccjojs4rekljoqu&appver=1&city=%E5%8C%97%E4%BA%AC%E5%B8%82&gps=39.97685%2C116.36043&history=&method=iss.getTalk&text=%E6%98%8E%E5%A4%A9%E7%9A%84%E5%A4%A9%E6%B0%94%EF%BC%9F&time=2015-03-18%2018%3A03%3A41&udid=54d59edc305273984f990823ee150fd1c25dc289&ver=2.0&voiceId=&scenario=&screen=&dpi=&viewid=0&appsig=E58C5622B7A9C79541E85F0EA71A6E172B812B73";
    CHAR szAgent[] = "";
    HINTERNET hInternet1 = 
        InternetOpen(NULL,INTERNET_OPEN_TYPE_PRECONFIG,NULL,NULL,NULL);
    if (NULL == hInternet1)
     {
        InternetCloseHandle(hInternet1);
        return FALSE;
     }
    HINTERNET hInternet2 =InternetOpenUrl(hInternet1,szUrl,NULL,NULL,INTERNET_FLAG_NO_CACHE_WRITE,NULL);
    if (NULL == hInternet2)
     {
        InternetCloseHandle(hInternet2);
        InternetCloseHandle(hInternet1);
        return FALSE;
     }
    DWORD dwMaxDataLength = 500;
    PBYTE pBuf = (PBYTE)malloc(dwMaxDataLength*sizeof(TCHAR));
    if (NULL == pBuf)
     {
        InternetCloseHandle(hInternet2);
        InternetCloseHandle(hInternet1);
        return FALSE;
     }
    DWORD dwReadDataLength = NULL;
    BOOL bRet = TRUE;
    do 
    {
        ZeroMemory(pBuf,dwMaxDataLength*sizeof(TCHAR));
        bRet = InternetReadFile(hInternet2,pBuf,dwMaxDataLength,&dwReadDataLength);
        for (DWORD dw = 0;dw < dwReadDataLength;dw++)
         {
            v.push_back(pBuf[dw]);
         }
     } while (NULL != dwReadDataLength);
    vector<char>::iterator i;
    for(i=v.begin(); i!=v.end(); i++)
        printf("%c",*i);
    return 0;
}