webform和winform之间通讯的一个问题

[as11qwer]

我在winform服务器端写的代码是：

using System.Windows.Forms;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;

using System.Net;
using System.Net.Sockets;
using System.Threading;
using System.IO;
namespace socket_server
{
    //服务器
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
            Control.CheckForIllegalCrossThreadCalls = false; //可以调试时，不捕捉控件创建线程错误
        }

        Thread thThreadRead;
        Socket s1=new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);//监听用
        Socket s3;//聊天用
        TcpListener tlTcpListen;
        NetworkStream nsStream;
        StreamReader srRead;
        StreamWriter swWriter;
        TcpClient [] tcClient=new TcpClient[10];
        int threadnum = 1;
        bool blistener = true;

        private void Listen()
        {
            try
            {
                tlTcpListen = new TcpListener(888); //以888端口号来初始化TcpListener实例 
                tlTcpListen.Start(); //开始监听 
                label1.Text = "正在监听";
                tcClient[threadnum] = tlTcpListen.AcceptTcpClient(); //通过TCP连接请求 
                    TcpClient newtcp = new TcpClient();
                    newtcp = tcClient[threadnum];
                    nsStream = newtcp.GetStream(); //获取用以发送、接收数据的网络基础数据流 

                    srRead = new StreamReader(nsStream);//以得到的网络基础数据流来初始化StreamReader实例 

                    label1.Text = "已经连接！" + threadnum.ToString();
                    while (true) //循环侦听 
                    {
                        string sMessage = srRead.ReadLine();//从网络基础数据流中读取一行数据 

                        richTextBox1.AppendText(sMessage + "++");
                        richTextBox1.ScrollToCaret();

                    }
            }
            catch (System.Security.SecurityException)
            {
                MessageBox.Show("侦听失败！", "错误");
            }
        }

        private void button1_Click(object sender, EventArgs e)
        {
            thThreadRead = new Thread(new ThreadStart(Listen));
            thThreadRead.Start();//启动线程 
        }

        private void button3_Click(object sender, EventArgs e)
        {
            for (int i = 0; i < threadnum; i++)
            {
                NetworkStream nsStream = tcClient[i].GetStream(); //获取用以发送、接收数据的网络基础数据流 
                swWriter = new StreamWriter(nsStream);
                swWriter.WriteLine(richTextBox2.Text);
                swWriter.Flush();
            }         
        }


    }
}

webform客户端的代码如下：

using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Net;
using System.Threading;
using System.Text;
using System.Net.Sockets;
using System.IO;

public partial class _Default : System.Web.UI.Page 
{

    private TcpClient tcpClient=new TcpClient("192.168.1.18", 888);
    private NetworkStream nsStream;// = tcpClient.GetStream(); //创建发送数据的网络基础数据流　     
    private bool tcpConnect = false;
    private StreamReader srRead;//= new StreamReader(nsStream);
    private StreamWriter swWriter;//= new StreamWriter(nsStream); //用以向网络基础数据流传送数据　 
    Thread thThreadRead;
    protected void Page_Load(object sender, EventArgs e)
    { 
            thThreadRead = new Thread(new ThreadStart(BB));
            thThreadRead.Start();//启动线程 
    }
    void BB()
    {
        if (tcpClient.Connected)
        {
            while (true) //循环侦听 
            {
                nsStream = tcpClient.GetStream();
                srRead = new StreamReader(nsStream);
                string sMessage = srRead.ReadLine();//从网络基础数据流中读取一行数据 
                Label1.Text = sMessage;
            }
        }
    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        nsStream = tcpClient.GetStream();
        swWriter = new StreamWriter(nsStream);
        swWriter.WriteLine(TextBox1.Text);//刷新当前数据流中的数据 
        swWriter.Flush();
    }

}

现在只能实现服务器端向客户端发送信息，客户端向服务器端却发不过去，求解啊，给100分！！

[ohkuy]

因为在你的客户端根本没写向服务器发送消息的代码，
只有接收消息

[as11qwer]

[Quote=引用 1 楼 ohkuy 的回复:]
因为在你的客户端根本没写向服务器发送消息的代码，
只有接收消息
[/Quote]
Button1_Click就是发送消息的代码啊

[ohkuy]

可能是阻塞了，
http://msdn.microsoft.com/zh-cn/library/system.net.sockets.tcpclient.getstream(VS.80).aspx
你看一下备注和例子

[as11qwer]

客户端把

 nsStream = tcpClient.GetStream();
        swWriter = new StreamWriter(nsStream);
        swWriter.WriteLine(TextBox1.Text);//刷新当前数据流中的数据 
        swWriter.Flush();

这段代码放到Page_Load里面，就能传过去一句，然后再点客户端的发送按钮就发不过去了

[debra]

swWriter = new StreamWriter(nsStream);
你的nsStream没东西啊，只是初始化了

[as11qwer]

[Quote=引用 5 楼 workingforever 的回复:]
swWriter = new StreamWriter(nsStream);
你的nsStream没东西啊，只是初始化了
[/Quote]
有东西，刚开始就初始化了：private TcpClient tcpClient=new TcpClient("192.168.1.18", 888);

[ohkuy]

看备注：在从发送数据到接收数据的整个过程中，必须关闭 NetworkStream。关闭 TcpClient 并不会释放 NetworkStream。
你这种方法很容易阻塞或异常，
看看这两种方式，或许有用
http://www.cnblogs.com/stg609/archive/2008/11/15/1333889.html

[Gemini Dean]

来学习了！

[sdl2005lyx]

另外一种思路：Remoting

[sunny906]

代码有问题
1.webform的客户端，用线程接收来自服务端的方法，这种方法不可取，因为webform是基于HTTP协议的，也就是客户端请求一次，获得web服务器的响应，连接就断开了
2.正是因为上述的原因，所以webform用线程的意义不大，建议采用ajax
3.客户端在发送消息的时候，应该先与服务端建立连接，再发送消息，然后，连接就断开了；再次点击的时候，再与服务端建立连接，然后发送消息，如此这般。。。

        Socket m_Socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
        IPAddress m_IP = IPAddress.Parse("192.168.1.18");

        private void button1_Click(object sender, EventArgs e)
        {
            m_Socket.Bind(new IPEndPoint(m_IP, 888));
            String strMessage = TextBox1.Text;
            m_Socket.Send(Encoding.Default.GetBytes(strMessage));
        }

[as11qwer]

不能在修改我的源代码的基础上实现吗？

[sunny906]

帮你把代码简化了，可以作为参考

服务端

        Thread m_Thread;
        Socket m_Socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);//监听用
        IPAddress m_IP = IPAddress.Parse("192.168.1.18");
        byte[] m_Buffer = new byte[1024];

        private void Listen()
        {
            try
            {
                m_Socket.Bind(new IPEndPoint(m_IP, 888));
                m_Socket.Listen(5);

                while (true)
                {
                    Socket socket = m_Socket.Accept();
                    socket.Receive(m_Buffer);
                    richTextBox1.AppendText(Encoding.Default.GetString(m_Buffer));
                    richTextBox1.AppendText("\r\n");
                }
            }
            catch (System.Security.SecurityException ex)
            {
                MessageBox.Show(ex.Message);
            }
        }

        private void button1_Click(object sender, EventArgs e)
        {
            m_Thread = new Thread(new ThreadStart(Listen));
            m_Thread.Start();//启动线程 

客户端

    Socket m_Socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
    IPAddress m_IP = IPAddress.Parse("192.168.1.18");

    protected void Button1_Click(object sender, EventArgs e)
    {
        m_Socket.Connect(new IPEndPoint(m_IP, 888));
        String strMessage = TextBox1.Text;
        m_Socket.Send(Encoding.Default.GetBytes(strMessage));
    }

[sunny906]

在你原有的方法上做了些改进，流打开后，一定要及时关闭

服务端

        private void Listen()
        {
            try
            {
                tlTcpListen = new TcpListener(888); //以888端口号来初始化TcpListener实例 
                tlTcpListen.Start(); //开始监听 
                label1.Text = "正在监听";

                while (true) //循环侦听 
                {
                    TcpClient newtcp = tlTcpListen.AcceptTcpClient(); //通过TCP连接请求 
                    using (NetworkStream nsStream = newtcp.GetStream()) //获取用以发送、接收数据的网络基础数据流 
                    {
                        using (StreamReader srRead = new StreamReader(nsStream))//以得到的网络基础数据流来初始化StreamReader实例 
                        {
                            label1.Text = "已经连接！" + threadnum.ToString();
                            string sMessage = srRead.ReadLine();//从网络基础数据流中读取一行数据 

                            richTextBox1.AppendText(sMessage + "++");
                            richTextBox1.ScrollToCaret();
                            srRead.Close();
                        }
                        nsStream.Close();
                    }
                }
            }
            catch (System.Security.SecurityException)
            {
                MessageBox.Show("侦听失败！", "错误");
            }
        }

不要把TcpClient作为全局变量
客户端

    //private TcpClient tcpClient = new TcpClient("192.168.1.18", 888);
    private NetworkStream nsStream;// = tcpClient.GetStream(); //创建发送数据的网络基础数据流　     
    private bool tcpConnect = false;
    private StreamReader srRead;//= new StreamReader(nsStream);
    private StreamWriter swWriter;//= new StreamWriter(nsStream); //用以向网络基础数据流传送数据　 

    protected void Button1_Click(object sender, EventArgs e)
    {
        TcpClient tcpClient = new TcpClient("192.168.1.18", 888);
        using (NetworkStream nsStream = tcpClient.GetStream())
        {
            using (StreamWriter swWriter = new StreamWriter(nsStream))
            {
                swWriter.WriteLine(TextBox1.Text);//刷新当前数据流中的数据 
                swWriter.Flush();
                swWriter.Close();
            }
            nsStream.Close();
        }
    }