(1)最近开始学习 Android，为了更快上手于是给自己找个小课题来练习一下: WCF作为服务端开放RESTful Service，Android作为客户端将手机上的短信传给服务端显示，并轮询服务端是否有发送的短信取回并发送。(在电脑前就可以浏览即时的短信并能快速回复，呵呵还是挺有意思的)。先上几张图：
1. 客户端：(咦?怎么还用android1.5?没办法现在手机是1.5的，为了在真机上发布凑合用吧:))
2. 服务端：
其中涉及到的知识点如下：(恩文章标题有点跑偏了，其实大头在Android端。。。)1. 服务端：
(1) RESTful WCF 如何作成 Winform Host(2) WCF 服务在 Winform Host 如何与服务端的UI进行数据交互2. 客户端：(1) Android Timer 的应用(2) Android Http 的交互(3) Android Json数据的序列化/反序列化(4) Android 短信拦截器的使用(5) Android Sqlite 查询 --------------------------------------------------------------------------------服务端
(1) RESTful WCF 如何作成 Winform Host首先Binding 选择 webHttpBinding 使用 WebGetAttribute 或 WebInvokeAttribute 特性对各个服务操作进行批注。这定义了从 URI 和 HTTP 方法到服务操作之间的映射，还定义了用于调用操作和返回结果的消息格式。
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<?xml version="1.0" encoding="utf-8" ?> <configuration> <system.web> <compilation debug="true" /> </system.web> <system.serviceModel> <services> <service name="WCFRestHost.SmsService" behaviorConfiguration="default"> <endpoint address="" binding="webHttpBinding" bindingConfiguration="" contract="WCFRestHost.SmsService"> </endpoint> <host> <baseAddresses> <add baseAddress="" /> </baseAddresses> </host> </service> </services> <behaviors> <serviceBehaviors> <behavior name="default"> <serviceMetadata httpGetEnabled="True"/> <serviceDebug includeExceptionDetailInFaults="False" /> </behavior> </serviceBehaviors> </behaviors> </system.serviceModel> </configuration> <?xml version="1.0" encoding="utf-8" ?><configuration> <system.web> <compilation debug="true" /> </system.web> <system.serviceModel> <services> <service name="WCFRestHost.SmsService" behaviorConfiguration="default"> <endpoint address="" binding="webHttpBinding" bindingConfiguration="" contract="WCFRestHost.SmsService"> </endpoint> <host> <baseAddresses> <add baseAddress="" /> </baseAddresses> </host> </service> </services> <behaviors> <serviceBehaviors> <behavior name="default"> <serviceMetadata httpGetEnabled="True"/> <serviceDebug includeExceptionDetailInFaults="False" /> </behavior> </serviceBehaviors> </behaviors> </system.serviceModel></configuration>(2) WCF 服务在 Winform Host 如何与服务端的UI进行数据交互服务端代码，没什么特别的。一开始考虑用socket，但是socket自己维护双工通信太麻烦了，于是想到了WCF，在Winform Host下发布一个RESTful WCF服务，而作为客户端的Android实现Http通信也不是什么难事，服务端直接反序列化成服务端对象编码很便利。
WCF服务里公开一个static的BindingList<SmsData>作为短信容器(Tip:使用BindingList<T>可以使得数据源变化立即反映到UI上，相比之下List<T>可以说只是Oneway的容器)，PC端可以通过UI往里添加要发送的短信，客户端则轮询取出要发送的短信进行发送；当客户端收到短信则通过WCF往容器里放入一条短信对象。流程比较简单，大家一看就明白啦。+ expand sourceview plaincopy to clipboardprint?
using System; using System.Collections.Generic; using System.Linq; using System.Runtime.Serialization; using System.ServiceModel; using System.Text; using System.ServiceModel.Web; using System.ComponentModel; namespace WCFRestHost { [ServiceContract] [ServiceBehavior(InstanceContextMode=InstanceContextMode.Single)] public class SmsService { static SmsService() { SmsList = new BindingList<SmsData>(); } public static BindingList<SmsData> SmsList { get; private set; } public static event Action<SmsData> OnSmsRecieved; public static void AddData(SmsData data) { lock (SmsList) { SmsList.Add(data); } } [OperationContract] [WebInvoke(UriTemplate="SetData", Method="POST", RequestFormat=WebMessageFormat.Json)] public void SetData(SmsData data) { var ctx = WebOperationContext.Current; data.SmsTime = DateTime.Now.ToString("MM-dd HH:mm:ss"); //SmsList.Add(data); if (OnSmsRecieved != null) OnSmsRecieved(data); ctx.OutgoingResponse.StatusCode = System.Net.HttpStatusCode.OK; } [OperationContract] [WebGet(UriTemplate = "GetData", ResponseFormat = WebMessageFormat.Json)] public SmsData GetData() { var ctx = WebOperationContext.Current; var data = SmsList.FirstOrDefault(sms => sms.State == 1); if (data != null) { data.State = 2; data.SmsTime = DateTime.Now.ToString("MM-dd HH:mm:ss"); } ctx.OutgoingResponse.StatusCode = System.Net.HttpStatusCode.OK; return data; } } public class SmsData { public string Phone { get; set; } public string Content { get; set; } public string SmsTime { get; set; } public string Name { get; set; } // 0: recieved 1: presend 2: send public int State { get; set; } } } using System;using System.Collections.Generic;using System.Linq;using System.Runtime.Serialization;using System.ServiceModel;using System.Text;using System.ServiceModel.Web;using System.ComponentModel;namespace WCFRestHost{ [ServiceContract] [ServiceBehavior(InstanceContextMode=InstanceContextMode.Single)] public class SmsService { static SmsService() { SmsList = new BindingList<SmsData>(); } public static BindingList<SmsData> SmsList { get; private set; } public static event Action<SmsData> OnSmsRecieved; public static void AddData(SmsData data) { lock (SmsList) { SmsList.Add(data); } } [OperationContract] [WebInvoke(UriTemplate="SetData", Method="POST", RequestFormat=WebMessageFormat.Json)] public void SetData(SmsData data) { var ctx = WebOperationContext.Current; data.SmsTime = DateTime.Now.ToString("MM-dd HH:mm:ss"); //SmsList.Add(data); if (OnSmsRecieved != null) OnSmsRecieved(data); ctx.OutgoingResponse.StatusCode = System.Net.HttpStatusCode.OK; } [OperationContract] [WebGet(UriTemplate = "GetData", ResponseFormat = WebMessageFormat.Json)] public SmsData GetData() { var ctx = WebOperationContext.Current; var data = SmsList.FirstOrDefault(sms => sms.State == 1); if (data != null) { data.State = 2; data.SmsTime = DateTime.Now.ToString("MM-dd HH:mm:ss"); } ctx.OutgoingResponse.StatusCode = System.Net.HttpStatusCode.OK; return data; } } public class SmsData { public string Phone { get; set; } public string Content { get; set; } public string SmsTime { get; set; } public string Name { get; set; } // 0: recieved 1: presend 2: send public int State { get; set; } }} 其次，ServiceHost 选择 WebServiceHost 类来承载利用 REST 编程模型的服务。即支持REST风格的Http Uri到服务方法的映射。另外，在 Winform 中 Host 为了让WCF 服务的通信不影响 UI 线程，需要为 WebServiceHost 单独创建线程。+ expand sourceview plaincopy to clipboardprint?
using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.ServiceModel; using System.Threading; namespace WCFRestHost { public class ThreadedServiceHost<T> : IDisposable where T : ServiceHostBase { const int SleepTime = 100; private ServiceHostBase _serviceHost = null; private Thread _thread; private bool _isRunning; public ThreadedServiceHost(Type serviceType) { _serviceHost = (ServiceHostBase)Activator.CreateInstance(typeof(T), new object[] { serviceType }); _thread = new Thread(ThreadMethod); } void ThreadMethod() { try { _isRunning = true; _serviceHost.Open(); while (_isRunning) { Thread.Sleep(SleepTime); } _serviceHost.Close(); } catch (Exception) { if (_serviceHost != null) { _serviceHost.Close(); } } } public void Open() { _thread.Start(); } public void Stop() { lock (this) { _isRunning = false; } } public void Dispose() { Stop(); } } } using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.ServiceModel;using System.Threading;namespace WCFRestHost{ public class ThreadedServiceHost<T> : IDisposable where T : ServiceHostBase { const int SleepTime = 100; private ServiceHostBase _serviceHost = null; private Thread _thread; private bool _isRunning; public ThreadedServiceHost(Type serviceType) { _serviceHost = (ServiceHostBase)Activator.CreateInstance(typeof(T), new object[] { serviceType }); _thread = new Thread(ThreadMethod); } void ThreadMethod() { try { _isRunning = true; _serviceHost.Open(); while (_isRunning) { Thread.Sleep(SleepTime); } _serviceHost.Close(); } catch (Exception) { if (_serviceHost != null) { _serviceHost.Close(); } } } public void Open() { _thread.Start(); } public void Stop() { lock (this) { _isRunning = false; } } public void Dispose() { Stop(); } }}服务端UI：
+ expand sourceview plaincopy to clipboardprint?using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; using System.ServiceModel.Web; namespace WCFRestHost { public partial class frmMain : Form { public frmMain() { InitializeComponent(); } private ThreadedServiceHost<WebServiceHost> _threadHost; private void frmMain_Load(object sender, EventArgs e) { _threadHost = new ThreadedServiceHost<WebServiceHost>(typeof(SmsService)); _threadHost.Open(); tssStatus.Text = "Listener is opening ..."; SmsService.OnSmsRecieved += new Action<SmsData>(SmsService_OnSmsRecieved); DataBind(); } void SmsService_OnSmsRecieved(SmsData obj) { Action<SmsData> addData = d => SmsService.AddData(d); dgvSms.Invoke(addData, obj); } private void DataBind() { dgvSms.DataSource = SmsService.SmsList; dgvSms.ClearSelection(); txtPhone.DataBindings.Add("Text", SmsService.SmsList, "Phone"); txtTime.DataBindings.Add("Text", SmsService.SmsList, "SmsTime"); txtContent.DataBindings.Add("Text", SmsService.SmsList, "Content"); } private void frmMain_FormClosing(object sender, FormClosingEventArgs e) { if (_threadHost != null) _threadHost.Stop(); } private void btnQuit_Click(object sender, EventArgs e) { this.Close(); } private void btnSend_Click(object sender, EventArgs e) { var smsForm = new SendSms(); smsForm.ShowDialog(); //DataBind(); } private void button1_Click(object sender, EventArgs e) { SmsService.SmsList.Add(new SmsData { Phone = "1" }); } } } using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Linq;using System.Text;using System.Windows.Forms;using System.ServiceModel.Web;namespace WCFRestHost{ public partial class frmMain : Form { public frmMain() { InitializeComponent(); } private ThreadedServiceHost<WebServiceHost> _threadHost; private void frmMain_Load(object sender, EventArgs e) { _threadHost = new ThreadedServiceHost<WebServiceHost>(typeof(SmsService)); _threadHost.Open(); tssStatus.Text = "Listener is opening ..."; SmsService.OnSmsRecieved += new Action<SmsData>(SmsService_OnSmsRecieved); DataBind(); } void SmsService_OnSmsRecieved(SmsData obj) { Action<SmsData> addData = d => SmsService.AddData(d); dgvSms.Invoke(addData, obj); } private void DataBind() { dgvSms.DataSource = SmsService.SmsList; dgvSms.ClearSelection(); txtPhone.DataBindings.Add("Text", SmsService.SmsList, "Phone"); txtTime.DataBindings.Add("Text", SmsService.SmsList, "SmsTime"); txtContent.DataBindings.Add("Text", SmsService.SmsList, "Content"); } private void frmMain_FormClosing(object sender, FormClosingEventArgs e) { if (_threadHost != null) _threadHost.Stop(); } private void btnQuit_Click(object sender, EventArgs e) { this.Close(); } private void btnSend_Click(object sender, EventArgs e) { var smsForm = new SendSms(); smsForm.ShowDialog(); //DataBind(); } private void button1_Click(object sender, EventArgs e) { SmsService.SmsList.Add(new SmsData { Phone = "1" }); } }}注意：当收到短信时直接添加到BindingList<SmsData>中时会导致"跨线程更新UI的错误"，因为WCF服务实际在子线程中，所以添加SmsData的操作必须使用Control.Invoke 进行调用，但是又不想把UI的引用直接交给WCF服务。。。呵呵，使用事件机制就可以很好的解决这一问题，让服务通知UI有新数据并让UI自己取添加数据。可以看到上面的服务代码中，公开了一个OnSmsRecieved事件。这样UI端监听这个事件，再使用 Control.Invoke 调用 AddData 方法。怎么样是不是很简单？不过每条短信是花1毛钱的T_T OK，接下来介绍下android端的代码。 本文来自CSDN博客，转载请标明出处：