GetResponse() 抛出异常 500错误

[xikuang21]

public static CookieContainer GetCooKie(string loginUrl, string postdata, HttpHeader header)
{
HttpWebRequest request = null;
HttpWebResponse response = null;
try
{
CookieContainer cc = new CookieContainer();
request = (HttpWebRequest)WebRequest.Create(loginUrl);
request.Method = header.method;
request.ContentType = header.contentType;
byte[] postdatabyte = Encoding.UTF8.GetBytes(postdata);
request.ContentLength = postdatabyte.Length;
request.AllowAutoRedirect = true;
request.CookieContainer = cc;
request.KeepAlive = true;
//request.v

// myHttpWebRequest.Referer = "http://order.xiaomi.com/site/login";
//提交请求
Stream stream;
stream = request.GetRequestStream();
stream.Write(postdatabyte, 0, postdatabyte.Length);
stream.Close();
//接收响应
response = (HttpWebResponse)request.GetResponse();
response.Cookies = request.CookieContainer.GetCookies(request.RequestUri);
CookieCollection cook = response.Cookies;
//Cookie字符串格式
string strcrook = request.CookieContainer.GetCookieHeader(request.RequestUri);
return cc;
}
catch (Exception ex)
{
throw ex;
}
}

以上是代码，测试人人网通过了 但是过了一个网站就不行了 就总是出错

[EnForGrass]

请参考
http://www.cnblogs.com/hanye/archive/2009/07/20/1527133.html

[孟子E章]

request.UserAgent="Mozilla/5.0 (Windows NT 5.2; rv:11.0) Gecko/20100101 Firefox/11.0"
要加

[xikuang21]

[Quote=引用 2 楼 net_lover 的回复:]

request.UserAgent="Mozilla/5.0 (Windows NT 5.2; rv:11.0) Gecko/20100101 Firefox/11.0"
要加
[/Quote]
在调用的时候 加了的 不行

[xikuang21]

调用时 loginUrl="http://passport.xiaomi.com/index.php?appid=8&goto=http%3A%2F%2Forder.xiaomi.com%2Fsite%2Fcallback%3Freferer%3Dhttp%253A%252F%252Fwww.xiaomi.com%252F"; 这样用可以吗？
因为我测试的人人网 可以登录成功

[孟子E章]

你用Http Watch等工具查看浏览器发送的Http头信息都是什么，你的程序也照着发送