C# 下载网页源码 获取http状态码

HttpWebRequest hwr = (HttpWebRequest) WebRequest.Create("http://www.baidu.com");

 3 hwr.AllowAutoRedirect = false; //不允许重定向

hwr.Timeout = 10000; //连接超时时间设置

hwr.Method = "GET"; //协议：GET、HEAD、POST、PUT、DELETE、TRACE 或OPTIONS。

try

{

HttpWebResponse hwrs = (HttpWebResponse)hwr.GetResponse();

MessageBox.Show(((int)hwrs.StatusCode).ToString()); //获得http状态码 如:200但是404却捕捉不到

Stream stream=hwrs.GetResponseStream();

MessageBox.Show(hwrs.CharacterSet); //获取返回结果的字符编码

StreamReader sr = new StreamReader(stream,Encoding.GetEncoding(hwrs.CharacterSet)); //注意读取的文字编码格式要和写入文件的文字编码格式相同

StreamWriter sw = new StreamWriter("c:\\b.html",false,Encoding.GetEncoding(hwrs.CharacterSet)); //写入文字的编码格式和读取时候的编码格式一样

sw.Write(sr.ReadToEnd());

sw.Flush();

sw.Close();

sr.Close();

 

 

}

catch(Exception ex)

{

　　MessageBox.Show(ex.ToString());

}