Csharp模拟网站登录并获取源文件-网页源文件

有些时候我们需要模拟操作网页，首先我们需要模拟登录。今天我就讲一下模拟登录并且获取源文件的方法。

首先我们要下载一个抓包工具。我用的Fiddler，抓取登录的信息。也可以使用浏览器自带的开发者工具，把注释“//以上信息在监听请求的时候都有的直接复制过来”上面的都对比一下。具体使用方法不在这里讲解了。如果使用有问题可以私信我。

这里讲一下登录的源码。

//获取cookie方法

static CookieContainer GetCookie(string postString, string postUrl)

{

CookieContainer cookie = new CookieContainer();

HttpWebRequest httpRequset = (HttpWebRequest)HttpWebRequest.Create(postUrl);//创建http 请求

httpRequset.CookieContainer = cookie;//设置cookie

httpRequset.Method = "POST";//POST 提交

httpRequset.KeepAlive = true;

httpRequset.UserAgent = "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/35.0.1916.153 Safari/537.36 SE 2.X MetaSr 1.0";

httpRequset.Accept = "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8";

httpRequset.ContentType = "application/x-www-form-urlencoded";//以上信息在监听请求的时候都有的直接复制过来

byte[] bytes = System.Text.Encoding.UTF8.GetBytes(postString);

httpRequset.ContentLength = bytes.Length;

Stream stream = httpRequset.GetRequestStream();

stream.Write(bytes, 0, bytes.Length);

stream.Close();//以上是POST数据的写入

HttpWebResponse httpResponse = (HttpWebResponse)httpRequset.GetResponse();//获得服务端响应

return cookie;//拿到cookie

}

//连接方法

static string GetContent(CookieContainer cookie, string url)

{

string content;

HttpWebRequest httpRequest = (HttpWebRequest)HttpWebRequest.Create(url);

httpRequest.CookieContainer = cookie;

httpRequest.Referer = url;

httpRequest.UserAgent = "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/35.0.1916.153 Safari/537.36 SE 2.X MetaSr 1.0";

httpRequest.Accept = "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8";

httpRequest.ContentType = "application/x-www-form-urlencoded";

httpRequest.Method = "GET";

HttpWebResponse httpResponse = (HttpWebResponse)httpRequest.GetResponse();

using (Stream responsestream = httpResponse.GetResponseStream())

{

using (StreamReader sr = new StreamReader(responsestream, System.Text.Encoding.UTF8))

{

content = sr.ReadToEnd();

}

return content;

}