Xamarin.Android 入门实例（2）之实现WCF 寄宿于IIS 的Web服务提供

1.WCF 契约 ICalculator.cs

using System.ServiceModel;
namespace Contracts
{
    [ServiceContract]
    public interface ICalculator
    {
        /// <summary>
        /// 加法
        /// </summary>
        /// <param name="x"></param>
        /// <param name="y"></param>
        /// <returns></returns>
        [OperationContract]
        [DataContractFormat(Style = OperationFormatStyle.Rpc)]
        double AddDouble(double x, double y);

        /// <summary>
        /// 加法
        /// </summary>
        /// <param name="num1">第一个数</param>
        /// <param name="num2">第二个数</param>
        /// <param name="num">结果</param>
        /// <returns></returns>
        [OperationContract]
        [DataContractFormat(Style = OperationFormatStyle.Rpc)]
        string Add(double num1, double num2, ref double num);


        /// <summary>
        /// 减法
        /// </summary>
        /// <param name="num1">第一个数</param>
        /// <param name="num2">第二个数</param>
        /// <param name="num">结果</param>
        /// <returns></returns>
        [OperationContract]
        [DataContractFormat(Style = OperationFormatStyle.Rpc)]
        string Reduce(double num1, double num2, ref double num);



        /// <summary>
        /// 乘法
        /// </summary>
        /// <param name="num1">第一个数</param>
        /// <param name="num2">第二个数</param>
        /// <param name="num">结果</param>
        /// <returns></returns>
        [OperationContract]
        [DataContractFormat(Style = OperationFormatStyle.Rpc)]
        string Multiplication(double num1, double num2, ref double num);


        /// <summary>
        /// 除法
        /// </summary>
        /// <param name="num1">第一个数</param>
        /// <param name="num2">第二个数</param>
        /// <param name="num">结果</param>
        /// <returns></returns>
        [OperationContract]
        [DataContractFormat(Style = OperationFormatStyle.Rpc)]
        string Division(double num1, double num2, ref double num);

    }


}

注意：

在客户端添加Web引用时为避免额外的布尔值参数被使用，确保代理客户端强制执行时使用的RPC风格的编码，这是SOAP 1.1规范的一部分。

请参考随笔：

Web Reference for a WCF Service has Extra “IdSpecified” Parameter ?

http://www.cnblogs.com/mschen/p/4262090.html

2. 服务实现 CalculatorService.cs

using System;
using System.Collections.Generic;
using System.Text;
using Contracts;

namespace Services
{
    public class CalculatorService : ICalculator
    {
        /// <summary>
        /// 加法
        /// </summary>
        /// <param name="x"></param>
        /// <param name="y"></param>
        /// <returns></returns>
        public double AddDouble(double x, double y)
        {
            return x + y;
        }

        /// <summary>
        /// 加法
        /// </summary>
        /// <param name="num1">第一个数</param>
        /// <param name="num2">第二个数</param>
        /// <param name="num">结果</param>
        /// <returns></returns>
        /// 
        public string Add(double num1, double num2, ref double num)
        {
            try
            {
                num = num1 + num2;
                return "1";
            }
            catch (Exception ex)
            {
                return ex.ToString();
            }
        }

        /// <summary>
        /// 减法
        /// </summary>
        /// <param name="num1">第一个数</param>
        /// <param name="num2">第二个数</param>
        /// <param name="num">结果</param>
        /// <returns></returns>
        public string Reduce(double num1, double num2, ref double num)
        {
            try
            {
                num = num1 - num2;
                return "1";
            }
            catch (Exception ex)
            {
                return ex.ToString();
            }
        }


        /// <summary>
        /// 乘法
        /// </summary>
        /// <param name="num1">第一个数</param>
        /// <param name="num2">第二个数</param>
        /// <param name="num">结果</param>
        /// <returns></returns>
        public string Multiplication(double num1, double num2, ref double num)
        {
            try
            {
                num = num1 * num2;
                return "1";
            }
            catch (Exception ex)
            {
                return ex.ToString();
            }
        }

        /// <summary>
        /// 除法
        /// </summary>
        /// <param name="num1">第一个数</param>
        /// <param name="num2">第二个数</param>
        /// <param name="num">结果</param>
        /// <returns></returns>
        public string Division(double num1, double num2, ref double num)
        {
            try
            {
                num = num1 / num2;
                return "1";
            }
            catch (Exception ex)
            {
                return ex.ToString();
            }
        }

    }
}

3.IIS 创建文件CalculatorService.svc

 <%@ServiceHost Service="Services.CalculatorService"%> 

4.IIS 寄宿服务配置，基于basicHttpBinding绑定 Web.config

<?xml version="1.0"?>
<configuration>
  <system.serviceModel>
    <behaviors>
      <serviceBehaviors>
        <behavior name="CalculatorBehavior">
          <serviceMetadata httpGetEnabled="true"/>
        </behavior>
      </serviceBehaviors>
    </behaviors>
    <serviceHostingEnvironment multipleSiteBindingsEnabled="true" />
    <services>
      <service behaviorConfiguration="CalculatorBehavior" name="Services.CalculatorService">
        <endpoint address="" binding="basicHttpBinding" bindingConfiguration=""
          contract="Contracts.ICalculator" />
        <host>
          <baseAddresses>
            <add baseAddress="http://192.168.1.2:8080/CalculatorService.svc" />
          </baseAddresses>
        </host>
      </service>
    </services>
  </system.serviceModel>
  <system.web>
    <compilation debug="true"/>
  </system.web>
</configuration>

注意:为了保证 soap:address location 和wsdl:import location 显示和url里面的ip或者域名是一致请使用：<serviceHostingEnvironment multipleSiteBindingsEnabled="true" /> ,multipleSiteBindingsEnabled 是.net framework 4里面支持的特性，如果版本低于4，例如3.5 那么就要根据IIS binding来设置baseAddress.

5.Main.axml 视图

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent">
    <EditText
        android:id="@+id/txtPhoneNo"
        android:layout_width="304.0dp"
        android:phoneNumber="true"
        android:hint="请输入第一个数"
        android:layout_height="wrap_content"
        android:layout_marginTop="5px"
        android:layout_marginLeft="5px" />
    <EditText
        android:id="@+id/txtSMS"
        android:layout_width="313.3dp"
        android:layout_height="40.0dp"
        android:phoneNumber="true"
        android:gravity="top"
        android:hint="请输入第二个数"
        android:layout_below="@id/txtPhoneNo" />
    <Button
        android:id="@+id/btnadd"
        android:text="加"
        android:layout_width="69dp"
        android:layout_height="wrap_content"
        android:layout_below="@id/txtSMS" />
    <Button
        android:id="@+id/btnjian"
        android:text="减"
        android:layout_width="69dp"
        android:layout_height="wrap_content"
        android:layout_below="@id/txtSMS"
        android:layout_toRightOf="@id/btnadd" />
    <Button
        android:id="@+id/btncheng"
        android:text="乘"
        android:layout_width="69dp"
        android:layout_height="wrap_content"
        android:layout_below="@id/txtSMS"
        android:layout_toRightOf="@id/btnjian" />
    <Button
        android:id="@+id/btnchu"
        android:text="除"
        android:layout_width="69dp"
        android:layout_height="wrap_content"
        android:layout_below="@id/txtSMS"
        android:layout_toRightOf="@id/btncheng" />
    <EditText
        android:id="@+id/txtjieguo"
        android:layout_width="fill_parent"
        android:layout_height="40.7dp"
        android:gravity="top"
        android:hint=""
        android:layout_below="@id/btnchu" />
</RelativeLayout>

6.Activity1.cs

using System;

using Android.App;
using Android.Content;
using Android.Runtime;
using Android.Views;
using Android.Widget;
using Android.OS;

namespace Databasedemo
{
    [Activity(Label = "Databasedemo", MainLauncher = true, Icon = "@drawable/icon")]
    public class Activity1 : Activity
    {

        EditText tvjg;
        EditText num1;
        EditText num2;
        double num = 0;
        protected override void OnCreate(Bundle bundle)
        {
            base.OnCreate(bundle);

            // Set our view from the "main" layout resource
            SetContentView(Resource.Layout.Main);

            //加
            Button btnadd = FindViewById<Button>(Resource.Id.btnadd);
            //减
            Button btnjian = FindViewById<Button>(Resource.Id.btnjian);
            //乘
            Button btncheng = FindViewById<Button>(Resource.Id.btncheng);
            //除
            Button btnchu = FindViewById<Button>(Resource.Id.btnchu);
            //第一个数
            num1 = FindViewById<EditText>(Resource.Id.txtPhoneNo);
            //第二个数
            num2 = FindViewById<EditText>(Resource.Id.txtSMS);
            //结果
            tvjg = FindViewById<EditText>(Resource.Id.txtjieguo);

            var ca = new WebReference.CalculatorService();

             btnadd.Click += delegate
             {                 
                 double num1s = Convert.ToDouble(num1.Text.ToString());
                 double num2s = Convert.ToDouble(num2.Text.ToString());

                 string flag = ca.Add(num1s, num2s, ref num);
                 tvjg.Text = num1s.ToString() + "+" + num2s.ToString() + "=" + num.ToString();
             };

             btnjian.Click += delegate
             {
                 double num1s = Convert.ToDouble(num1.Text.ToString());
                 double num2s = Convert.ToDouble(num2.Text.ToString());

                 string flag = ca.Reduce(num1s, num2s, ref num);
                 tvjg.Text = num1s.ToString() + "-" + num2s.ToString() + "=" + num.ToString();
             };

             btncheng.Click += delegate
             {
                 double num1s = Convert.ToDouble(num1.Text.ToString());
                 double num2s = Convert.ToDouble(num2.Text.ToString());

                 string flag = ca.Division(num1s, num2s, ref num);
                 tvjg.Text = num1s.ToString() + "*" + num2s.ToString() + "=" + num.ToString();
             };
             btnchu.Click += delegate
             {
                 double num1s = Convert.ToDouble(num1.Text.ToString());
                 double num2s = Convert.ToDouble(num2.Text.ToString());

                 string flag = ca.Multiplication(num1s, num2s, ref num);
                 tvjg.Text = num1s.ToString() + "/" + num2s.ToString() + "=" + num.ToString();
             };
        }      
    }
}

模拟器

运行效果

源码下载：

WCFforIIS.zip

Databasedemo.zip