两个界面如图：
代码：
服务端
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.Runtime.Remoting;//添加引用
using System.Runtime.Remoting.Channels;
using System.Runtime.Remoting.Channels.Tcp;
using System.Runtime.Remoting.Channels.Http;
using System.IO;
namespace Server
{
/// <summary>
/// 服务端接收、处理并返回客户端面、显示信息到界面
/// </summary>
public partial class Form1 : Form
{
string FilePath="";
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
FilePath = AppDomain.CurrentDomain.BaseDirectory + "\\msg.txt";
if (FilePath != "" && File.Exists(FilePath))
{
dothings.MsgContentLast+=File.ReadAllText(FilePath);
}
//注册通道
IChannel channel = null;
//channel = new TcpServerChannel("TalkChannel", 8090); //端口随便取
channel = new HttpServerChannel(8091);
ChannelServices.RegisterChannel(channel, false);//对于Http通道必须设置为false，否则将抛出：无法保证信道 http server 的安全。请考虑使用实现 ISecurableChannel 的信道 的异常
//注册远程对象
RemotingConfiguration.RegisterWellKnownServiceType(
typeof(dothings),
"dothings",
WellKnownObjectMode.SingleCall);
}
private void timetick_Tick(object sender, EventArgs e)
{
if (dothings.MsgContentLast.ToString() != dothings.MsgContent.ToString())//有新信息才更新和滚动到最后
{
txtReceive.Text = dothings.MsgContentLast.ToString();//txtReceive为RichTextBox控件
dothings.MsgContent = dothings.MsgContentLast;
this.txtReceive.Select(this.txtReceive.TextLength, 0);//光标移到最后
this.txtReceive.ScrollToCaret();//滚动到光标处
}
}
}
public class dothings : MarshalByRefObject
{
private static string _MsgContentLast ="";
public static string MsgContentLast//新信息
{
get { return _MsgContentLast; }
set { _MsgContentLast = value; }
}
private static string _MsgContent="";
public static string MsgContent//旧信息
{
get { return _MsgContent; }
set { _MsgContent = value; }
}
private string FilePath = AppDomain.CurrentDomain.BaseDirectory + "\\msg.txt";
public string dothing(string msg)
{
File.AppendAllText(FilePath, msg + "\r\n");
MsgContentLast+=("\r\n" + msg);
return "发送成功，返回:" + msg;
}
}
}
客户端
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.Runtime.Remoting.Channels;
using System.Runtime.Remoting.Channels.Tcp;
using System.Runtime.Remoting.Channels.Http;
using Server;
namespace Client
{
/// <summary>
/// 客户端发送、接收、显示返回的信息
/// </summary>
public partial class Form1 : Form
{
private dothings _dothings = null;
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
try
{
//注册通道
IChannel channel=null;
// channel = new TcpClientChannel();
channel = new HttpClientChannel();
ChannelServices.RegisterChannel(channel, true);
//获取远程对象
//_dothings = (dothings)Activator.GetObject(typeof(dothings), "TCP://localhost:8090/dothings");
_dothings = (dothings)Activator.GetObject(typeof(dothings), "http://localhost:8091/dothings");
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
string ReceiveMsg = "";
private void btn_send_Click(object sender, EventArgs e)
{
try
{
//操作远程对象
ReceiveMsg=_dothings.dothing(txtTosend.Text.Trim());//返回来的消息
txtSended.Text += "\r\n" + ReceiveMsg;//txtSended为TextBox控件
txtTosend.Text = "";
txtTosend.Focus();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
private void txtTosend_KeyDown(object sender, KeyEventArgs e)
{
if (e.Control && e.KeyValue == 13)//按Ctrl+Enter键就点击发送按钮
{
e.Handled = true;
this.btn_send_Click(this, null);
}
}
}
}