一句话概括
remoting是微软的一种实现在不同的.net应用程序中进行分布式通信的技术
重要概念
原理大致是首先客户端通过remoting通道来获取服务器对象代理,通过序列化与反序列方式实现数据交互
远程对象:服务器端的实现类必须继承MarshalByRefObject,进而实现remoting通信,支持跨程序域的访问
远程对象的激活
主要分为服务器端激活和客户端激活
交互前都需要激活相应的实例,便于调用方法
通道:
主要tcp,http,ipc这几种方式
tcp通过二进制传输,传输效率高,局域网中适合用tcp
http:采用soap格式序列化消息对象,可以跨越防火墙,安全性较高,
IpcChannel:进程间通信,只使用同一个系统进程之间的通信,不需要主机名和端口号。而使用Http通道和Tcp通道都要指定主机名和端口号。
简单Demo
1.创建服务器端服务实现类
public class MyRemotingObject : MarshalByRefObject { // 用来测试Tcp通道 public int AddForTcpTest(int a, int b) { return a + b; } // 用来测试Http通道 public int MinusForHttpTest(int a, int b) { return a - b; } // 用来测试IPC通道 public int MultipleForIPCTest(int a, int b) { return a * b; } }
2.配置服务端remting服务
<?xml version="1.0" encoding="utf-8" ?> <!--服务端App.config的内容--> <configuration> <startup> <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5" /> </startup> <system.runtime.remoting> <application> <service> <wellknown mode="Singleton" type="RemotingDemo.MyRemotingObject,RemotingDemo" objectUri="MyRemotingObject"/> </service> <channels> <channel port="9001" ref="tcp"/> <channel port="9002" ref="http"/> <channel portName="IpcTest" ref="ipc"/> <!--Ipc通道不需要端口号--> </channels> </application> </system.runtime.remoting> </configuration>
3.在服务器端程序入口启动加载配置文件,让它内部自己去注册启动服务
RemotingConfiguration.Configure(AppDomain.CurrentDomain.SetupInformation.ConfigurationFile, false);
4.客户端激活远程对象并调用相应方法
MyRemotingObject proxyobj1 = Activator.GetObject(typeof(MyRemotingObject), "tcp://localhost:9001/MyRemotingObject") as MyRemotingObject; if (proxyobj1 == null) { Console.WriteLine("连接TCP服务器失败"); } //HttpChannel httpChannel = new HttpChannel(); //ChannelServices.RegisterChannel(httpChannel, false); MyRemotingObject proxyobj2 = Activator.GetObject(typeof(MyRemotingObject), "http://localhost:9002/MyRemotingObject") as MyRemotingObject; if (proxyobj2 == null) { Console.WriteLine("连接Http服务器失败"); } //IpcChannel ipcChannel = new IpcChannel(); //ChannelServices.RegisterChannel(ipcChannel, false); MyRemotingObject proxyobj3 = Activator.GetObject(typeof(MyRemotingObject), "ipc://IpcTest/MyRemotingObject") as MyRemotingObject; if (proxyobj3 == null) { Console.WriteLine("连接Ipc服务器失败"); } // 输出信息 Console.WriteLine("This call object by TcpChannel, 100 + 200 = {0}", proxyobj1.AddForTcpTest(100, 200)); Console.WriteLine("This call object by HttpChannel, 100 - 200 = {0}", proxyobj2.MinusForHttpTest(100, 200)); Console.WriteLine("This call object by IpcChannel, 100 * 200 = {0}", proxyobj1.MultipleForIPCTest(100, 200)); Console.WriteLine("Press any key to exit!"); Console.ReadLine();
总结
以前很惧怕去了解相关的技术,感觉非常难学,譬如说wcf,接下来我应该去实践wcf带来的乐趣!
时间: 2024-10-10 14:02:31