解析URL的数据
上次说过URL概念，但具体在程序中将其中数据解析出来我是用windows函数InternetCrackUrl来实现的，尾后的W和A是函数的编码方式。
程序如下：
#include <windows.h>
#include <WinInet.h>
#include <iostream>
#include <string>
#pragma comment(lib, "WinInet.lib")
using namespace std;
void SplitURL(wstring lpUrl)
{
do
{
URL_COMPONENTS urlComp = { 0 };
WCHAR Scheme[MAX_PATH] = { 0 };
WCHAR HostName[MAX_PATH] = { 0 };
WCHAR UserName[MAX_PATH] = { 0 };
WCHAR Password[MAX_PATH] = { 0 };
WCHAR UrlPath[MAX_PATH] = { 0 };
WCHAR ExtraInfo[MAX_PATH] = { 0 };
urlComp.dwSchemeLength = MAX_PATH;
urlComp.dwHostNameLength = MAX_PATH;
urlComp.dwUserNameLength = MAX_PATH;
urlComp.dwPasswordLength = MAX_PATH;
urlComp.dwUrlPathLength = MAX_PATH;
urlComp.dwExtraInfoLength = MAX_PATH;
urlComp.dwStructSize = sizeof(urlComp);
urlComp.lpszScheme = Scheme;
urlComp.lpszHostName = HostName;
urlComp.lpszUserName = UserName;
urlComp.lpszPassword = Password;
urlComp.lpszUrlPath = UrlPath;
urlComp.lpszExtraInfo = ExtraInfo;
//调用函数
if (InternetCrackUrlW(lpUrl.c_str(), lpUrl.size(), NULL, &urlComp) == FALSE)
{
break;
}
wcout << "Scheme: " << urlComp.lpszScheme << endl;
wcout << "HostName: " << urlComp.lpszHostName << endl; //主机名
wcout << "UserName: " << urlComp.lpszUserName << endl; //用户名
wcout << "Password: " << urlComp.lpszPassword << endl; //密码
wcout << "UrlPath: " << urlComp.lpszUrlPath << endl; //网址路径
wcout << "ExtraInfo: " << urlComp.lpszExtraInfo << endl;
wcout << "nPort: " << urlComp.nPort << endl; //端口号
} while (FALSE);
}
int main()
{
wstring zurl = L"http://www.demongan.com/upload.asp?file=520.zip";
wcout << zurl.c_str() <<endl;
SplitURL(zurl);
system("PAUSE");
return 0;
};
最后输出结果：
http://www.demongan.com/upload.asp?file=520.zi
Scheme: http
HostName: www.demongan.com
UserName:
Password:
UrlPath: /upload.asp
ExtraInfo: ?file=520.zip
nPort: 80
请按任意键继续. . .
