从控制台应用程序中使用Web服务

Question

I have a web service that creates a JSON package (or whatever you want to call it) like this:

 [WebMethod]
        [ScriptMethod(ResponseFormat = ResponseFormat.Json)]
        public void MyMethod(string letters, int number)
        {
            try
            {
                Dictionary<string, object> result = new Dictionary<string, object>();

                //Do some stuff here

                result.Add("data1", 1);
                result.Add("data2", "second value");

                JavaScriptSerializer s= new JavaScriptSerializer();
                Context.Response.Clear();
                Context.Response.ContentType = "application/json; charset=utf-8";
                Context.Response.Flush();
                Context.Response.Write(s.Serialize(result));
            }
            catch (Exception ex)
            {

            }
        }

When I test it I get a nice response like the following: {"data1":1,"data2":"second value."}

Now, the problem is that I've deployed it to a test server and created a simple console application to try make it work. Here's the application that tries to consume the service. Consider that I added a web reference and named it MyWS, so the namespace and the class have the same name (not what's causing the problem):

class Program
    {
        static void Main(string[] args)
        {
            MyWS.MyWS x = new MyWS.MyWS ();
            x.Timeout = 5000;
            try
            {
                x.MyMethod("Hello World", 1);
            }
            catch (Exception ex)
            {
                Console.Write(ex.ToString());
            }
            Console.ReadLine();
        }


    }

When I run this, I know the web service has been reached. The "Do some stuff here" part in the WS writes to a database. It does that, no problem there, so the problem must be after that.

The only error I get is a code 500 with no real meaning. Looking around I've found that it could be the .Flush() method, so I deleted that line, and that the Context.Response.BufferOutput should be set to true. Did that, didn't work.

Oh, and (probably) to make things worse, the WS will be later consumed by an Android App. But first things first: What am I missing?

Answer 1

Well, turns out I found the solution on my own after all... well, still browsing the Internet. Here's the code that works. Nevermind the variable names in Spanish (I'm Mexican living in Mexico City). By the way, I found the solution in a forum in Spanish, so it pays off to learn more that your native language. =) It's all inside the Main method of the console application.

string datos = "";

    string url = "http://server.com/wsDirectory/wsFile.asmx/MethodName?param1=value1&param2=value2";
    string respuesta = "";

    try
    {
        byte[] buffer = Encoding.ASCII.GetBytes(datos);
        System.Net.HttpWebRequest solicitud = (System.Net.HttpWebRequest)System.Net.WebRequest.Create(url);
        solicitud.Method = "GET";
        solicitud.ContentLength = buffer.Length;
        System.Net.HttpWebResponse r = (System.Net.HttpWebResponse)solicitud.GetResponse();
        System.IO.Stream datosRespuesta = r.GetResponseStream();
        System.IO.StreamReader lector = new System.IO.StreamReader(datosRespuesta);
        respuesta = lector.ReadToEnd();
        System.Web.Script.Serialization.JavaScriptSerializer serializador = new System.Web.Script.Serialization.JavaScriptSerializer();
        Dictionary<string, object> resultado = (Dictionary<string, object>)serializador.Deserialize<object>(respuesta);
        Console.Write("Resultado obtenido: " + resultado.ToString());

    }
    catch (Exception ex)
    {
        Console.Write(ex.ToString());
    }
    Console.ReadLine();