https://qrng.physik.hu-berlin.de/的頁面提供了一個高比特率的量子數生成器Web服務,我試圖訪問該服務。我的帖子請求https://qrng.physik.hu-berlin.de/失敗了,爲什麼?
但是我無法做到這一點。這是我當前的代碼:
using System;
using System.Collections.Generic;
using System.Linq;
using S=System.Text;
using System.Security.Cryptography;
using System.IO;
namespace CS_Console_App
{
class Program
{
static void Main()
{
System.Net.ServicePointManager.Expect100Continue = false;
var username = "testuser";
var password = "testpass";
System.Diagnostics.Debug.WriteLine(Post("https://qrng.physik.hu-berlin.de/", "username="+username+"&password="+password));
Get("http://qrng.physik.hu-berlin.de/download/sampledata-1MB.bin");
}
public static void Get(string url)
{
var my_request = System.Net.WebRequest.Create(url);
my_request.Credentials = System.Net.CredentialCache.DefaultCredentials;
var my_response = my_request.GetResponse();
var my_response_stream = my_response.GetResponseStream();
var stream_reader = new System.IO.StreamReader(my_response_stream);
var content = stream_reader.ReadToEnd();
System.Diagnostics.Debug.WriteLine(content);
stream_reader.Close();
my_response_stream.Close();
}
public static string Post(string url, string data)
{
string vystup = null;
try
{
//Our postvars
byte[] buffer = System.Text.Encoding.ASCII.GetBytes(data);
//Initialisation, we use localhost, change if appliable
System.Net.HttpWebRequest WebReq = (System.Net.HttpWebRequest)System.Net.WebRequest.Create(url);
//Our method is post, otherwise the buffer (postvars) would be useless
WebReq.Method = "POST";
//We use form contentType, for the postvars.
WebReq.ContentType = "application/x-www-form-urlencoded";
//The length of the buffer (postvars) is used as contentlength.
WebReq.ContentLength = buffer.Length;
//We open a stream for writing the postvars
Stream PostData = WebReq.GetRequestStream();
//Now we write, and afterwards, we close. Closing is always important!
PostData.Write(buffer, 0, buffer.Length);
PostData.Close();
//Get the response handle, we have no true response yet!
System.Net.HttpWebResponse WebResp = (System.Net.HttpWebResponse)WebReq.GetResponse();
//Let's show some information about the response
Console.WriteLine(WebResp.StatusCode);
Console.WriteLine(WebResp.Server);
//Now, we read the response (the string), and output it.
Stream Answer = WebResp.GetResponseStream();
StreamReader _Answer = new StreamReader(Answer);
vystup = _Answer.ReadToEnd();
//Congratulations, you just requested your first POST page, you
//can now start logging into most login forms, with your application
//Or other examples.
}
catch (Exception ex)
{
throw ex;
}
return vystup.Trim() + "\n";
}
}
}
我有403禁止錯誤,當我嘗試做
http://qrng.physik.hu-berlin.de/download/sampledata-1MB.bin GET請求
。
調試升技後,我意識到,即使我提供了有效的用戶名和密碼,在POST請求後發送的響應html表明我實際上沒有在POST請求後登錄系統。
有誰知道爲什麼會出現這種情況,我該如何解決它以致電該服務?
凹凸。任何人都可以得到這個工作或是網站只是一個騙局?
你確定你的網址與用戶名和密碼實際上是一種有效的方式登錄到該網站? – 2011-05-18 08:10:59
你似乎沒有使用用戶名和密碼的定義變量? – Michel 2011-05-18 08:36:33
@Daniel Hilgarth是它的有效。您可以嘗試創建一個帳戶並自己分配值。 – Pacerier 2011-05-18 08:45:14