尝试拨打Google地址以解决服务问题时,它会向我显示以下消息:
无法建立连接,因为目标计算机是主动的 拒绝了它173.194.66.95:80
我使用带有C#的ASP.net 4
这是我的代码:
protected void btn_FindAddress_Click(object sender, EventArgs e)
{
url = "http://maps.googleapis.com/maps/api/geocode/xml?latlng=";
query = LatY.Text + "," + LongX.Text + "&sensor=true";
Address.Text = url;
Uri uri = new Uri (url + query);
// Create a request for the URL.
WebRequest request = WebRequest.Create(uri);
//// If required by the server, set the credentials.
request.Credentials = CredentialCache.DefaultCredentials;
// Get the response.
WebResponse response = request.GetResponse();
// Display the status.
Status.Text = (((HttpWebResponse)response).StatusDescription);
// Get the stream containing content returned by the server.
Stream dataStream = response.GetResponseStream();
// Open the stream using a StreamReader for easy access.
StreamReader reader = new StreamReader(dataStream);
// Read the content.
string responseFromServer = reader.ReadToEnd();
// Display the content.
Address.Text = responseFromServer;
// Clean up the streams and the response.
reader.Close();
response.Close();
}
答案 0 :(得分:2)
最常见的是,可以建立出站连接(远程服务器可以到达并且及时发送响应)但是您尝试使用的端口被阻止(a防火墙或代理是我能想到的两种最有可能的选择。)
它可能来自于连接另一端没有服务器的事实:例如,如果您将NAT端口80连接到没有Web的系统,则可能会发生这种情况服务器。因为你正在调用谷歌的网址,我怀疑是这样,但我认为值得指出。