C# 百度链接网址转换为真实网址
一、问题:
当我们拿到百度某个链接时,显示的是一个链接http://www.baidu.com/link?url=xxx,跳转后的链接是:https://jingyan.baidu.com/xxx
例:
跳转后的链接:https://jingyan.baidu.com/article/b907e627cd7ccf46e6891c58.html
这里我们需要得到跳转后的链接
二、代码
using System; using System.Collections.Generic; using System.Linq; using System.Net; using System.Text; using System.Threading.Tasks; namespace Study3 { class Program { static void Main(string[] args) { HttpWebRequest req = (HttpWebRequest)WebRequest.Create("http://www.baidu.com/link?url=JlULc4CHuEv66CucFPeIBun-7xlXrmBVuFLsD-ZL8Q8tQVCw0LltiznnFYHXuhQD33x5lKp5bGY85Xx-WFHtvq"); req.Method = "HEAD"; req.AllowAutoRedirect = false; HttpWebResponse myResp = (HttpWebResponse)req.GetResponse(); if (myResp.StatusCode == HttpStatusCode.Redirect) { Console.Write("redirected to:" + myResp.GetResponseHeader("Location")); myResp.Close();//释放资源不然会超时 } Console.ReadKey(); } } }