Windows窗體應用程序中WCF服務的配置

Question

我正在嘗試在Windows窗體應用程序中運行簡單的計算器Web服務。 在應用程序啟動期間，出現錯誤：

System.ServiceModel.dll中發生了類型為'System.InvalidOperationException'的未處理異常

附加信息：服務“ CalculatorWCF.CalculatorService”具有零個應用程序（非基礎結構）端點。 這可能是因為沒有為您的應用程序找到配置文件，或者是因為在配置文件中找不到與服務名稱匹配的服務元素，或者因為在服務元素中未定義端點。

我想配置文件有問題。 但是問題出在哪里呢？

Form1 code:

    namespace CalculatorWCF
    {
        partial class Form1
        {
            /// <summary>
            /// Required designer variable.
            /// </summary>
            private System.ComponentModel.IContainer components = null;

            /// <summary>
            /// Clean up any resources being used.
            /// </summary>
            /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
            public ServiceHost serviceHost = null;


            public void startWCFCalculator()
            {
                if (serviceHost != null)
                {
                    serviceHost.Close();
                }

                // Create a ServiceHost for the CalculatorService type and 
                // provide the base address.
                serviceHost = new ServiceHost(typeof(CalculatorService));

                // Open the ServiceHostBase to create listeners and start 
                // listening for messages.
                serviceHost.Open();



            }


            protected override void Dispose(bool disposing)
            {
                if (disposing && (components != null))
                {
                    components.Dispose();
                }
                base.Dispose(disposing);
            }

            #region Windows Form Designer generated code

            /// <summary>
            /// Required method for Designer support - do not modify
            /// the contents of this method with the code editor.
            /// </summary>
            private void InitializeComponent()
            {
                this.SuspendLayout();
                // 
                // Form1
                // 
                this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
                this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
                this.ClientSize = new System.Drawing.Size(563, 446);
                this.Name = "Form1";
                this.Text = "Form1";
                this.Load += new System.EventHandler(this.Form1_Load);
                this.ResumeLayout(false);

            }

            #endregion
        }
    }

服務代碼：

namespace CalculatorWCF
{


    [ServiceContract(Namespace = "http://Microsoft.ServiceModel.Samples")]
    public interface ICalculator
    {
        [OperationContract]
        double Add(double n1, double n2);
        [OperationContract]
        double Subtract(double n1, double n2);
        [OperationContract]
        double Multiply(double n1, double n2);
        [OperationContract]
        double Divide(double n1, double n2);
    }

    public class CalculatorService : ICalculator
    {
        // Implement the ICalculator methods.
        public double Add(double n1, double n2)
        {
            double result = n1 + n2;
            return result;
        }

        public double Subtract(double n1, double n2)
        {
            double result = n1 - n2;
            return result;
        }

        public double Multiply(double n1, double n2)
        {
            double result = n1 * n2;
            return result;
        }

        public double Divide(double n1, double n2)
        {
            double result = n1 / n2;
            return result;
        }
    }


}

App.config中

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
    <startup> 
        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5" />
    </startup>
  <system.serviceModel>    <services>
      <!-- This section is optional with the new configuration model
           introduced in .NET Framework 4. -->
      <service name="Microsoft.ServiceModel.Samples.CalculatorService"
               behaviorConfiguration="CalculatorServiceBehavior">
        <host>
          <baseAddresses>
            <add baseAddress="http://localhost:8000/ServiceModelSamples/service"/>
          </baseAddresses>
        </host>
        <!-- this endpoint is exposed at the base address provided by host: http://localhost:8000/ServiceModelSamples/service  -->
        <endpoint address=""
                  binding="wsHttpBinding"
                  contract="Microsoft.ServiceModel.Samples.ICalculator" />
        <!-- the mex endpoint is exposed at http://localhost:8000/ServiceModelSamples/service/mex -->
        <endpoint address="mex"
                  binding="mexHttpBinding"
                  contract="IMetadataExchange" />
      </service>
    </services>
    <behaviors>
      <serviceBehaviors>
        <behavior name="CalculatorServiceBehavior">
          <serviceMetadata httpGetEnabled="true"/>
          <serviceDebug includeExceptionDetailInFaults="False"/>
        </behavior>
      </serviceBehaviors>
    </behaviors>
  </system.serviceModel>
</configuration>

Answer 1

服務在您的代碼中稱為CalculatorWCF.CalculatorService ，而不是在配置文件中稱為Microsoft.ServiceModel.Samples.CalculatorService 。 您應該更正其中之一，以便它們匹配。