asp.net 調用 Remoting

1.定義接口

1.1 IDuplexCalculator 操作接口

  public  interface ICalculatorCallback
    {
        void  ShowResult(double x, double y, double result);
    }

1.2 定義囘調接口 ICalculatorCallback

 public  interface ICalculatorCallback
    {
        void  ShowResult(double x, double y, double result);
    }

2.定義服務器端操作類 DuplexCalculatorRemoting，需要繼承 MarshalByRefObject ，

IDuplexCalculator

   public class DuplexCalculatorRemoting : MarshalByRefObject, IDuplexCalculator

   {

        public void Add(double x, double y, ICalculatorCallback callback)

        {

           //Console.WriteLine("Invoke the method Add({0},{1}).", x, y);

            double result = x + y;

            callback.ShowResult(x, y, result);

        }

    }

3.定義宿主

3.1   class Program
    {
        static void Main(string[] args)
        {
            System.Runtime.Remoting.RemotingConfiguration.Configure("Hosting.exe.config", false);
            Console.WriteLine("Calculator service has begun to listen... ...");
            Console.Read();
        }
    }

啟動 Remoting 服務。

3.2 定義配置文件

<configuration>
  <system.runtime.remoting>
    <application name="Calculator">
      <service>
        <wellknown mode="SingleCall"
                           type="DuplexCalculatorRemoting.DuplexCalculatorRemoting,DuplexCalculatorRemoting"
                           objectUri="DuplexCalculator.soap" />
      </service>

      <channels>
        <channel ref="http" port="8080">
          <serverProviders>
            <provider ref="wsdl" />
            <formatter ref="binary" typeFilterLevel="Full" />
          </serverProviders>
          <clientProviders>
            <formatter ref="binary" />
          </clientProviders>
        </channel>
      </channels>
    </application>
  </system.runtime.remoting>
</configuration>

其中 <application name="Calculator"> objectUri="DuplexCalculator.soap" />為客戶端條用的參數設置

http://localhost:8080/Calculator/DuplexCalculator.soap 客戶端調用的url

在這裡需要引用接口類，操作類。

4.客戶端調用

  public partial class _Default : System.Web.UI.Page
    {
     
        CalculatorCallbackHandler calcul = new CalculatorCallbackHandler();
        protected void Page_Load(object sender, EventArgs e)
        {
            System.Runtime.Remoting.RemotingConfiguration.Configure(Server.MapPath("Web.config"), false);
            calcul.myEvent += new EventHandler(calcul_myEvent);
            InvocateDuplexCalculator("http://localhost:8080/Calculator/DuplexCalculator.soap");
            //InvocateDuplexCalculator("http://localhost/DuplexCalculatorRemoting/DuplexCalculator.soap");
            
        }

        void calcul_myEvent(object sender, EventArgs e)
        {
            TextBox1.Text = ((CalculatorCallbackHandler)sender).Value;
        }

        private void InvocateDuplexCalculator(string remoteAddress)
        {
            IDuplexCalculator proxy = (IDuplexCalculator)Activator.GetObject(typeof(IDuplexCalculator), remoteAddress);
            proxy.Add(1.0, 2.0, calcul);
            
        }
    }

客戶端需要實現囘調函數的接口的方法。如下：

    public class CalculatorCallbackHandler : MarshalByRefObject, ICalculatorCallback
    {

        public event EventHandler myEvent;
        #region ICalculatorCallback Members

        public void  ShowResult(double x, double y, double result)
        {
            Value=string.Format("x + y = {2} where x = {0} and y = {1}", x, y, result);
            if (myEvent != null) {
                myEvent(this, null);
            }
        }

        #endregion

        public string Value { get; set; }
    }

同樣客戶端需要在配置文件中進行設置

如下：

  <system.runtime.remoting>
    <application>
      <channels>
        <channel ref="http" port="0">
          <clientProviders>
            <formatter ref="binary" />
          </clientProviders>
          <serverProviders>
            <formatter ref="binary" typeFilterLevel="Full" />
          </serverProviders>
        </channel>
      </channels>
    </application>
  </system.runtime.remoting>