代码如下:
string _loginContent,_loginURL;// _loginURL="http://www.cmfu.com/loginuser.asp";
// _loginContent="user_name=@username&pass_word=@password&ekey=&user_type=1";
_loginURL="http://www.nch.com.tw/login.php";
_loginContent="key=login&orig_self=%2Fmybook.php&orig_query_string=&login_id=@username&login_pw=@password";
string UserName="vstest";
string PassWord="123456";
byte[] LoginContent = Encoding.ASCII.GetBytes(_loginContent.Replace("@username",UserName).Replace("@password",PassWord)); HttpWebResponse LoginResponse;
HttpWebRequest LoginRequest = (HttpWebRequest)WebRequest.Create(_loginURL);
LoginRequest.Method="POST";
LoginRequest.ContentType="application/x-www-form-urlencoded";
LoginRequest.ContentLength=LoginContent.Length;
LoginRequest.CookieContainer=new CookieContainer();
Stream streamContent=LoginRequest.GetRequestStream();
streamContent.Write(LoginContent,0,LoginContent.Length);
streamContent.Close(); LoginRequest.GetResponse();现在遇到的问题是,当登陆cmfu时一切正常,LoginRequest.CookieContainer中就存有Cookie,可以用于访问书架,而登陆nch时则LoginRequest.CookieContainer中为空,这是怎么回事?
用Sniffer Pro可以看到,POST后确实返回了Cookie,用IE登录的话也确实有Cookie存在,为什么程序会得不到求教
谢谢
string _loginContent,_loginURL;// _loginURL="http://www.cmfu.com/loginuser.asp";
// _loginContent="user_name=@username&pass_word=@password&ekey=&user_type=1";
_loginURL="http://www.nch.com.tw/login.php";
_loginContent="key=login&orig_self=%2Fmybook.php&orig_query_string=&login_id=@username&login_pw=@password";
string UserName="vstest";
string PassWord="123456";
byte[] LoginContent = Encoding.ASCII.GetBytes(_loginContent.Replace("@username",UserName).Replace("@password",PassWord)); HttpWebResponse LoginResponse;
HttpWebRequest LoginRequest = (HttpWebRequest)WebRequest.Create(_loginURL);
LoginRequest.Method="POST";
LoginRequest.ContentType="application/x-www-form-urlencoded";
LoginRequest.ContentLength=LoginContent.Length;
LoginRequest.CookieContainer=new CookieContainer();
Stream streamContent=LoginRequest.GetRequestStream();
streamContent.Write(LoginContent,0,LoginContent.Length);
streamContent.Close(); LoginRequest.GetResponse();现在遇到的问题是,当登陆cmfu时一切正常,LoginRequest.CookieContainer中就存有Cookie,可以用于访问书架,而登陆nch时则LoginRequest.CookieContainer中为空,这是怎么回事?
用Sniffer Pro可以看到,POST后确实返回了Cookie,用IE登录的话也确实有Cookie存在,为什么程序会得不到求教
谢谢
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一年前给朋友写了个刷积分的.
这个要保存到一个全局变量
第二次Request的时候赋值过来才行
LoginRequest.CookieContainer=new CookieContainer();
这个要保存到一个全局变量
第二次Request的时候赋值过来才行这没用啊
跟上面最后再加一句CookieContainer cc=LoginRequest.CookieContainer
效果一样吧
至少cmfu的就没区别,我在正式的程序里就是这么做的,完全可以
但这里nch的问题是最后出来LoginRequest.CookieContainer.Count=0
...
“一年前给朋友写了个刷积分的.”等想做的都做完了可以考虑作为附加功能~~~
好的,如果今天还解决不了,回家后加你qq
不过我对这个可是一窍不通,要请你多指点了~~~还有没有哪位能有直接、方便点的解决方法啊?
到底是什么原因引起的呢
------------------------------------------------------------------------------------
HttpWebRequest LoginRequest = (HttpWebRequest)WebRequest.Create(new System.Uri((_loginURL));用Sniffer Pro看到的POST的数据是这个吗??
_loginContent="key=login&orig_self=%2Fmybook.php&orig_query_string=&login_id=@username&login_pw=@password";
不会复制 ,截了2张图
http://photo.163.com/photos/wuliaoing_000/52301200/
再给你个我收藏的资料参考.
最近有个项目需要从网络上下载网页信息和文件,并且需要登录后才能下载,所以做了个下载的通用类,供大家参考。这个是文件下载类:
using System;
using System.Net;
using System.Web;
public class SRWebClient
{
CookieContainer cookie;
public SRWebClient()
{
cookie=new CookieContainer();
}
/**//// <TgData>
/// <Alias>下载Web源代码</Alias>
/// </TgData>
public string DownloadHtml(string URL)
{
HttpWebRequest request=HttpWebRequest.create(URL) as HttpWebRequest;
request.CookieContainer=cookie;
request.AllowAutoRedirect=false;
WebResponse res=request.GetResponse();
string r="";
System.IO.StreamReader S1 = new System.IO.StreamReader(res.GetResponseStream(), System.Text.Encoding.Default );
try
{
r = S1.ReadToEnd();
}
catch(Exception er)
{
Log l=new Log();
l.writelog("下载Web错误",er.ToString());
}
finally
{
res.Close();
S1.Close();
}
return r;
}
/**//// <TgData>
/// <Alias>下载文件</Alias>
/// </TgData>
public long DownloadFile(string FileURL,string FileSavePath)
{
long Filelength=0;
HttpWebRequest req=HttpWebRequest.create(FileURL) as HttpWebRequest;
req.CookieContainer=cookie;
req.AllowAutoRedirect=true;
HttpWebResponse res=req.GetResponse() as HttpWebResponse;
System.IO.Stream stream=res.GetResponseStream();
try
{
Filelength=res.ContentLength;
byte [] b=new byte[512];
int nReadSize=0;
nReadSize=stream.Read(b,0,512);
System.IO.FileStream fs= System.IO.File.create(FileSavePath);
try
{
while(nReadSize >0)
{
fs.Write(b,0,nReadSize);
nReadSize=stream.Read(b,0,512);
}
}
finally
{
fs.Close();
}
}
catch(Exception er)
{
Log l=new Log();
l.writelog("下载文件错误",er.ToString());
}
finally
{
res.Close();
stream.Close();
}
return Filelength;
}
/**//// <TgData>
/// <Alias>提交数据</Alias>
/// </TgData>
public void Request(string RequestPageURL,RequestData Data)
{
string StrUrl=RequestPageURL;
HttpWebRequest request=HttpWebRequest.create(StrUrl) as HttpWebRequest;
HttpWebResponse response;
string postdata=Data.GetData();
request.Referer=RequestPageURL;
request.AllowAutoRedirect=false;
request.UserAgent = "Mozilla/4.0 (compatible; MSIE 6.01; Windows NT 5.0)";
request.CookieContainer = cookie;
Uri u=new Uri(StrUrl);
if (postdata.Length > 0 ) //包含要提交的数据 就使用Post方式
{
request.ContentType = "application/x-www-form-urlencoded"; //作为表单请求
request.Method = "POST"; //方式就是Post
//把提交的数据换成字节数组
Byte [] B = System.Text.Encoding.Default.GetBytes(postdata);
request.ContentLength = B.Length;
System.IO.Stream SW = request.GetRequestStream(); //开始提交数据
SW.Write(B, 0, B.Length);
SW.Close();
}
response = request.GetResponse() as HttpWebResponse;
response.Close();
}
}
这个是提交的数据类:
using System.Collections;
using System.IO;
public class RequestData
{
ArrayList arr=new ArrayList();
public RequestData()
{
}
public string GetData()
{
string r="";
for(int i=0;i<arr.Count;i++)
{
data d=(data)arr[i];
if(r.Length>0)r+="&";
r+=d.Field+"="+d.Value;
}
return r;
}
public void AddField(string Field,string Value)
{
data a=new data();
a.Field=Field;
a.Value=Value;
arr.Add(a);
}
struct data
{
public string Field,Value;
}
}
http://img.photo.163.com/vKC5QwZUTCN1e6u3TwtXWA==/153122387331382002.jpg
http://img.photo.163.com/TPnZJglE9PFesPKJtHurcA==/153122387331382000.jpg
看到了
是那样的格式的啊
再给你一个
慧聪网登录地址:http://b2b.hc360.com/rewrite-url/www/dl.html
用户名:mytestcs
密 码:aabbccdd
string url = "http://my.b2b.hc360.com/my/turbine/template/firstview,other_login.html";string indata = @"LoginID=mytestcs&Passwd=aabbccdd&LoginChk=true&Submit=%B5%C7%A1%A1%A1%A1%C2%BC"; string outdata=""; CookieContainer myCookieContainer=new CookieContainer();
//新建一个CookieContainer来存放Cookie集合
HttpWebRequest myHttpWebRequest=(HttpWebRequest)WebRequest.Create(url);
//新建一个HttpWebRequest
myHttpWebRequest.ContentType="application/x-www-form-urlencoded";
myHttpWebRequest.ContentLength=indata.Length;
myHttpWebRequest.Method="POST";
myHttpWebRequest.CookieContainer=myCookieContainer;
//设置HttpWebRequest的CookieContainer为刚才建立的那个myCookieContainer
Stream myRequestStream=myHttpWebRequest.GetRequestStream();
StreamWriter myStreamWriter=new StreamWriter(myRequestStream,Encoding.GetEncoding("gb2312"));
myStreamWriter.Write(indata);
//把数据写入HttpWebRequest的Request流
myStreamWriter.Close();
myRequestStream.Close(); //关闭打开对象
HttpWebResponse myHttpWebResponse=(HttpWebResponse)myHttpWebRequest.GetResponse();
//新建一个HttpWebResponse
myHttpWebResponse.Cookies=myCookieContainer.GetCookies(myHttpWebRequest.RequestUri);
//获取一个包含url的Cookie集合的CookieCollection
Stream myResponseStream=myHttpWebResponse.GetResponseStream();
StreamReader myStreamReader=new StreamReader(myResponseStream,Encoding.GetEncoding("gb2312"));
outdata=myStreamReader.ReadToEnd();
//把数据从HttpWebResponse的Response流中读出
myStreamReader.Close();
myResponseStream.Close();
Console.WriteLine(outdata);
//显示"登录"
//拿到了Cookie,再进行请求就能直接读取到登录后的内容了
myHttpWebRequest=(HttpWebRequest)WebRequest.Create(url);
myHttpWebRequest.CookieContainer=myCookieContainer;//*
//刚才那个CookieContainer已经存有了Cookie,把它附加到HttpWebRequest中则能直接通过验证
myHttpWebResponse=(HttpWebResponse)myHttpWebRequest.GetResponse();
myHttpWebResponse.Cookies=myCookieContainer.GetCookies(myHttpWebRequest.RequestUri);
myResponseStream=myHttpWebResponse.GetResponseStream();
myStreamReader=new StreamReader(myResponseStream,Encoding.GetEncoding("gb2312"));
outdata=myStreamReader.ReadToEnd();
myStreamReader.Close();
myResponseStream.Close();
Console.WriteLine(outdata);
// string url = "http://my.b2b.hc360.com/my/turbine/template/firstview,other_login.html";
//
// string indata = @"LoginID=mytestcs&Passwd=aabbccdd&LoginChk=true&Submit=%B5%C7%A1%A1%A1%A1%C2%BC"; string url = "http://www.cmfu.com/loginuser.asp"; string indata = @"user_name=vstest&pass_word=123456&ekey=&user_type=1";// string url = "http://www.nch.com.tw/login.php";
//
// string indata = @"key=login&orig_self=%2Fmybook.php&orig_query_string=&login_id=vstest&login_pw=123456";url和indata分别用2个网站的代替,在Console.WriteLine(outdata); 处设断点,可以看到
hc和cmfu的myCookieContainer.Count均大于0,而nch的myCookieContainer.Count=0
cmfu第二次GetResponseStream的时候会提示"您登录过了,用不着再次登录",而nch的则每次都会有输入用户名密码的框出来
<table width=100% border=1 cellspacing=0 bgcolor=#E7D6C3 height=60 bordercolorlight=#000000 bordercolordark=#FFFFFF>\r\n <form name=mlogin method=post action=login.php onSubmit=\"return check_mlogin_value()\">\r\n <input type=hidden name=key value=login>\r\n <input type=hidden name=orig_self value=/mybook.php>\r\n <input type=hidden name=orig_query_string value=login=1>\r\n\t <tr bgcolor=#CCCCD6>\r\n\t <td class=a> 际嘿<input type=text name=login_id size=10 class=n></td>\r\n\t </tr>\r\n\t <tr bgcolor=#CCCCD6>\r\n\t <td class=a> 盞絏<input type=password name=login_pw size=10 class=n></td>\r\n\t </tr>\r\n\t <tr bgcolor=#CCCCD6>\r\n\t <td class=a>\r\n\t\t <input type=submit value=祅 class=a>\r\n\
t\t <input type=button value=爹 class=a onClick=javascript:document.location.replace('join.php')>\r\n\t\t <input type=button value=а癘盞絏 class=a onClick=javascript:document.location.replace('forget.php')>\r\n\t </td>\r\n\t </tr>\r\n\t </form>\r\n\t </table>
(其实就是书和章节这些东西之间的关系)
Set-Cookies
但是CookieContainer里却没有东西
通过人工处理后就可用了但是为什么无法自动获取,人工处理毕竟比较麻烦啊:(