java - android - WCF Rest服务通信

Question

在android客户端和wcf自托管服务之间进行通信。如果我在 Fiddler 中将帖子发送到服务，一切都会完美，但是当我尝试发送帖子时，Android 客户端会返回“java.net.SocketException:没有到主机的路由”。通过 wifi 从真实设备连接到正在运行服务的电脑。有人遇到过这个问题吗？

服务器:

[ServiceContract]
public interface ISDMobileService
{
    [OperationContract]
    [WebInvoke(Method="POST",BodyStyle=WebMessageBodyStyle.Bare,ResponseFormat=WebMessageFormat.Xml,RequestFormat=WebMessageFormat.Xml)]
    string  PostMessage(string  SdaMessage);
}

public class Service : ISDMobileService
{
    public  string  PostMessage(string  SdaMessage)
    {
        Console.WriteLine( "Post Message : " + SdaMessage );
        return"Calling Post for you " + SdaMessage; 
    }
}

客户:

String urlToSendRequest = "http://172.16.3.4:7310/PostMessage";
String targetDomain = "172.16.3.4"; 

HttpClient httpClient = new DefaultHttpClient();
HttpPost request = new HttpPost(urlToSendRequest);

List<NameValuePair> postParameters = new ArrayList<NameValuePair>();
postParameters.add(new BasicNameValuePair("SdaMessage", "param value one"));

request.addHeader("Content-Type", "application/xml");

try
{
    request.setEntity(new UrlEncodedFormEntity(postParameters));
    HttpResponse response = httpClient.execute(request);

    if(response != null)
    {
        HttpParams str = response.getParams(); 
    }
}
catch (Exception ex) 
{
    ex.printStackTrace(); 
}

Answer 1

172.16.x.x 位于私有(private) IP 地址范围内，无法从公共(public)互联网访问。如果您尝试从不在同一专用网络上的 Android 设备连接到那里，它将失败并出现给出的错误。