发送网络请求时出现问题

Question

我使用以下方法使用 HTTPWebRequest 从 Web 服务检索某些内容：

private void RetrieveSourceCode(Method method)
{
   try
      {
      String url = "http://123.123.123.123:8080/";

      CredentialCache myCache = new CredentialCache();
      myCache.Add(new Uri(url), "Basic", new NetworkCredential("user", "pwd"));

     HttpWebRequest request =(HttpWebRequest)WebRequest.Create("http://abc.abc.ch:8080/famixParser/projects/argouml/org.argouml.uml.ui.behavior.common_behavior.ActionAddSendActionSignal.doIt(java.util.Collection)");
     Console.WriteLine(request.RequestUri.ToString());
     request.Credentials = myCache;
     request.Accept = "text/plain";

     HttpWebResponse response;
     try
     {
         response = (HttpWebResponse)request.GetResponse();
     }
     catch (Exception e)
     {
        Console.WriteLine("exception when sending query: ");
        throw e;
     }
     Stream resStream = response.GetResponseStream();
     byte[] buf = new byte[8192];
     StringBuilder sb = new StringBuilder();
     string tempString = null;
     int count = 0;

     do
     {
                    // fill the buffer with data
                    count = resStream.Read(buf, 0, buf.Length);

                    // make sure we read some data
                    if (count != 0)
                    {
                        // translate from bytes to ASCII text
                        tempString = Encoding.ASCII.GetString(buf, 0, count);

                        // continue building the string
                        sb.Append(tempString);
                    }
                }
                while (count > 0); // any more data to read?

                String sourceCode = sb.ToString();
                method.setSourceCode(sourceCode);
                Console.WriteLine(sourceCode);
                request.Abort();
            }
            catch (Exception e)
            {
                Console.WriteLine(e.Message);
            }


        }

现在我总是收到 401 - 访问被拒绝异常。我不知道为什么，因为如果我在网络浏览器中使用相同的 URL，它就会起作用。可能是因为括号的原因吗？

请注意：我在这里更改了服务器地址，因此它在这里不起作用，但出于保密原因我必须这样做。

Answer 1

您的缓存网址和请求网址不同，我认为这意味着您的用户名和密码没有在请求中传递。

String url = "http://123.123.123.123:8080/";

CredentialCache myCache = new CredentialCache();
myCache.Add(new Uri(url), "Basic", new NetworkCredential("user", "pwd"));

使用 123.123

HttpWebRequest request =(HttpWebRequest)WebRequest.Create("http://abc.abc.ch:8080/famixParser/projects/argouml/org.argouml.uml.ui.behavior.common_behavior.ActionAddSendActionSignal.doIt(java.util.Collection)");

使用 abc.ch