System.Net.Sockets.SocketException in Simple.oData.Client

Question

我有下面的代码来获得使用oData的Simple.oData.Client.It works。当我通过手机获得wifi时，但是，当我通过受代理保护的公司以太网连接时，它会给我以下错误。我该怎么处理呢？

async partial  void Click_TouchUpInside (UIButton sender)
        {
            var client= new ODataClient("http://services.odata.org/Northwind/Northwind.svc/");

            Console.WriteLine("before await");

            try {
            var packages = await client
                .For("Customers").
                FindEntriesAsync();
                foreach (var package in packages)
                 {
                  //Console.WriteLine(package["CompanyName"]);
                  Console.WriteLine(package);
                 }
                }
                catch(AggregateException e) {
                   Console.WriteLine(e);
                   Console.WriteLine(e.InnerException);
                }
                Console.WriteLine("after await");
       }

///Library/Frameworks/Xamarin.iOS.framework/Versions/8.8.2.4/中发生了一个或多个错误-> System.AggregateException:发生了一个或多个错误-> Simple.OData.Client.WebRequestException:遇到了意外的WebException --> System.Net.WebException:错误: ConnectFailure (拒绝连接)--> System.Net.Sockets.SocketException: System.Net.Sockets.Socket.Connect (System.Net.EndPoint remoteEP) 0x000f1拒绝连接src/mono/mcs/class/System/System.Net.Sockets/Socket_2_1.cs:1257 at System.Net.WebConnection.Connect (System.Net.HttpWebRequest请求) 0x001c2 in ///Library/Frameworks/Xamarin.iOS.framework/Versions/8.8.2.4/src/mono/mcs/class/System/System.Net/WebConnection.cs:213 --内部异常堆栈跟踪的结束--

Answer 1

以下是解决办法：

async partial  void Click_TouchUpInside (UIButton sender)
        {

            ODataClientSettings settings = new ODataClientSettings();

            NetworkCredential proxyNC = new NetworkCredential("Username", "password");

            settings.OnApplyClientHandler= (System.Net.Http.HttpClientHandler clientHandler) => {

                clientHandler.Proxy = new WebProxy("yourproxy.com",false,null, proxyNC);
                clientHandler.UseProxy = true;
            };
            settings.UrlBase = "http://services.odata.org/Northwind/Northwind.svc/";
            var client= new ODataClient(settings);

            Console.WriteLine("before await");

            try {
            var packages = await client
                .For("Customers").
                FindEntriesAsync();
                foreach (var package in packages)
                 {
                  //Console.WriteLine(package["CompanyName"]);
                  Console.WriteLine(package["CompanyName"]);
                 }
                }
                catch(AggregateException e) {
                   Console.WriteLine(e);
                   Console.WriteLine(e.InnerException);
                }
                Console.WriteLine("after await");
       }

Answer 2

这意味着您要连接的端点没有侦听连接。