Remoting技术初探--实现简单服务器客户机通信

最近因工作需要研究了一下Remoting，因为以前一直在做Delphi开发，没有接触到这块，今天做了个小Demo，算是对Remoting有了一点浅显的认识，现把代码发布出来，希望大家指点。
A建立远程对象：


using System;


using System.Collections.Generic;


using System.Text;


using System.Runtime.Remoting.Lifetime;




namespace RemotingClass




...{


public class PublicCls : MarshalByRefObject//一定要继承这个对象




...{


public string Start;




//构造


public PublicCls()




...{


this.Start = "Welcome to Remoting Exemple！";


}




//一个计算算法，用于测试


public int calculate(int nI)




...{


if (nI < 1)




...{


return 0;


}


if (nI > 1 && nI <= 2)




...{


return 1;


}


else




...{


return calculate(nI - 1) + calculate(nI - 2);


}


}


}


}



B建立服务器程序


using System;


using System.Collections.Generic;


using System.ComponentModel;


using System.Data;


using System.Drawing;


using System.Text;


using System.Windows.Forms;


using System.Runtime.Remoting.Channels;


using System.Runtime.Remoting.Channels.Http;


using System.Runtime.Remoting.Channels.Tcp;


using System.Runtime.Remoting;




namespace RemotingServer




...{


public partial class FrmServer : Form




...{


public FrmServer()




...{


InitializeComponent();


}




private void btn_StartServer_Click(object sender, EventArgs e)




...{


try




...{


RemotingConfiguration.Configure(


AppDomain.CurrentDomain.SetupInformation.ConfigurationFile);//读取配置文件内信息


this.lab_State.Text = "数据服务已开启！";


}


catch (Exception ex)




...{


string str = ex.Message;


this.lab_State.Text = str;


}


}


}


}

服务器端配置文件


<?xml version="1.0" encoding="utf-8" ?>


<configuration>


<system.runtime.remoting>


<application>


<server>


<wellknown


mode ="Singleton"


type ="RemotingClass.PublicCls,RemotingClass"


objectUri ="publiccls"/>


</server>


<channels>


<channel port="8086" ref="http"/>


</channels>


<!--leaseManagerPollTime="7S"-->


<lifetime


leaseTime ="7M"


sponsorshipTimeout="7M"


renewOnCallTime="7M"/>


</application>


</system.runtime.remoting>


</configuration>

C建立客户机程序


using System;


using System.Collections.Generic;


using System.ComponentModel;


using System.Data;


using System.Drawing;


using System.Text;


using System.Windows.Forms;


using System.Runtime.Remoting;


using System.Runtime.Remoting.Channels;


using System.Runtime.Remoting.Channels.Tcp;


using System.Runtime.Remoting.Channels.Http;


using RemotingClass;




namespace RemotingClient




...{


public partial class FrmClient : Form




...{


public FrmClient()




...{


InitializeComponent();


}




private PublicCls pcls = new PublicCls();//实例化一个远程对象




private void FrmClient_Load(object sender, EventArgs e)




...{


RemotingConfiguration.Configure(@"client.exe.config",false);//读取配置文件




if (pcls == null) //如果对象不存在




...{


this.lab_isConncetion.Text = "Cann't conncetion the Server！";


}




else ...{


this.lab_isConncetion.Text = "Conncetioned the Server！";


}


}




private void btn_Cal_Click(object sender, EventArgs e)




...{


try




...{


//使用远程对象进行计算


int i = pcls.calculate(Convert.ToInt32(this.txt_Num.Text.Trim()));


this.lab_Cal.Text = i.ToString();


}


catch(FormatException ex)




...{


string str = ex.Message;


this.lab_Cal.Text = "输入的不是数字！";


}


}


}


}

客户机配置文件


<?xml version="1.0" encoding="utf-8" ?>


<configuration>


<system.runtime.remoting>


<application>


<client>


<wellknown type ="RemotingClass.PublicCls,RemotingClass"


url ="http://192.168.0.117:8086/publiccls"/>


</client>


<channels>


<channel ref="http" port="0"></channel>


</channels>


</application>


</system.runtime.remoting>


</configuration>