JAVA方面的，求个源程序！谢谢了。

powerchuangwai 2010-09-20 11:02:32

就只有37分了，呵呵。

求用socket,seversocket实现的SMTP、POP3邮件服务器的源程序。

谢谢大家了。后面再加分。

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powerchuangwai 2010-09-29

呵呵，谢谢了，问一下，基于socket通信，可以实现B/S模式的应用吗？

也就是说在B/S模式下，可以使用socket通信吗？

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wisereach 2010-09-29

网上有很多。自己搜吧

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powerchuangwai 2010-09-29

肯请有人指点迷津。。。

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QQ153984069 2010-09-28

[Quote=引用 22 楼 powerchuangwai 的回复:]
楼上的哥们，哪个是服务器端，哪个是客户端？
[/Quote]
ServerSocketConnectionDemo是服务器端
ClientSocketConnectionDemo是客户端

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LOVE小葡萄 2010-09-28

貌似有人写过了。搜索下吧

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powerchuangwai 2010-09-28

谢谢各位，又加了十分，期待有人回答。。

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powerchuangwai 2010-09-27

楼上的哥们，哪个是服务器端，哪个是客户端？

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QQ153984069 2010-09-27

import java.io.DataInputStream;

import java.io.DataOutputStream;

import java.io.IOException;



import javax.microedition.io.Connector;

import javax.microedition.io.ServerSocketConnection;

import javax.microedition.io.SocketConnection;

import javax.microedition.lcdui.Command;

import javax.microedition.lcdui.CommandListener;

import javax.microedition.lcdui.Display;

import javax.microedition.lcdui.Displayable;

import javax.microedition.lcdui.Form;

import javax.microedition.lcdui.TextField;

import javax.microedition.midlet.MIDlet;

import javax.microedition.midlet.MIDletStateChangeException;



public class ServerSocketConnectionDemo extends MIDlet 

                implements  Runnable, CommandListener {

    private Display display = null;

    

    private Form form = new Form("Socket服务器演示");

    //用于输入要发送的消息

    private TextField tfData = new TextField("请输入发送的消息",

            "",255,TextField.ANY); 

    

    //定义使用的命令按钮

    private Command cmdExit = new Command("退出", Command.EXIT, 0);

    private Command cmdSend = new Command("发送", Command.SCREEN, 1);

    

    //线程运行标志

    private boolean isRunning = true;

    

    private DataInputStream dis = null;

    private DataOutputStream dos = null;

    private ServerSocketConnection scn = null;

    

    public ServerSocketConnectionDemo() {

        super();



        form.append(tfData);

        form.addCommand(cmdExit);

        form.addCommand(cmdSend);

        form.setCommandListener(this);

    }



    protected void startApp() throws MIDletStateChangeException {

        display = Display.getDisplay(this);

        display.setCurrent(form);

        

        //开始服务器线程

        new Thread(this).start();

    }



    protected void pauseApp() {

        //暂停时要关闭Socket连接

        close();

    }



    protected void destroyApp(boolean arg0)

        throws MIDletStateChangeException {

        close();

    }

    

    /**

     * 处理命令按钮事件

     */

    public void commandAction(Command cmd, Displayable d) {

        if (cmd == cmdExit) {

            isRunning = false;

            notifyDestroyed();

        } else if(cmd == cmdSend) {

            //发送数据

            new Thread() {

                public void run() {

                    if (dos == null) {

                        return;

                    }

                    String str = tfData.getString();

                    try {

                        dos.writeUTF(str);

                    } catch (IOException e) {

                        e.printStackTrace();

                    }

                    //显示发送的消息

                    form.append("[S]  " + str + "\n");

                }

            }.start();

        }

    }

    

    /**

     * 服务器线程

     */

    public void run() {

        isRunning = true;

        try {

            scn = (ServerSocketConnection) Connector.open("socket://:9999");

            form.append("连接端口9999...\n");

            form.append("Local address: " + scn.getLocalAddress()+"\n");

            form.append("Local Port: " + scn.getLocalPort()+"\n");

            

            //等待客户端的连接

            SocketConnection sc = (SocketConnection)scn.acceptAndOpen();

            form.append("连接已经接受\n");

            //获得输入流

            dis = sc.openDataInputStream();

            //获得输出流

            dos = sc.openDataOutputStream();

            

            while (isRunning) {

                String str = dis.readUTF();

                //休息1秒

                Thread.sleep(1000);

                //显示接收到的消息

                form.append("[R]  " + str + "\n");

            }

            sc.close();

            sc = null;

            form.append("连接已经关闭");

        } catch (Exception e) {

            e.printStackTrace();

            //客户端关闭连接

            form.append("客户端连接断开,重新监听");

            close();

            new Thread(this).run();

        } finally {

            close();

        }

    }

    

    /**

     * 关闭Socket连接

     */

    public void close() {

        try {

            isRunning = false;



            if (dis != null) {

                dis.close();

                dis = null;

            }

            

            if (dos != null) {

                dos.close();

                dos = null;

            }

            

            if (scn != null) {

                scn.close();

                scn = null;

            }

            

        } catch (Exception e) {

            e.printStackTrace();

        }

    }



}

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QQ153984069 2010-09-27

import java.io.DataInputStream;

import java.io.DataOutputStream;

import java.io.IOException;



import javax.microedition.io.Connector;

import javax.microedition.io.SocketConnection;

import javax.microedition.lcdui.Command;

import javax.microedition.lcdui.CommandListener;

import javax.microedition.lcdui.Display;

import javax.microedition.lcdui.Displayable;

import javax.microedition.lcdui.Form;

import javax.microedition.lcdui.TextField;

import javax.microedition.midlet.MIDlet;

import javax.microedition.midlet.MIDletStateChangeException;



public class ClientSocketConnectionDemo extends MIDlet

                    implements  Runnable, CommandListener {

    private Display display = null;

    

    private Form form = new Form("Socket客户端演示");

    //用于输入服务器地址

    private TextField tfAddress = new TextField("服务器地址",

            "127.0.0.1",255,TextField.ANY);

    //用于输入服务器端口

    private TextField tfPort = new TextField("服务器端口",

            "9999",6,TextField.ANY);   

    //用于输入要发送的消息

    private TextField tfData = new TextField("请输入发送的消息",

            "",255,TextField.ANY);

    

    private Command cmdExit = new Command("退出", Command.EXIT, 0);

    private Command cmdSend = new Command("发送", Command.SCREEN, 1);

    private Command cmdConnect = new Command("连接", Command.SCREEN, 1);

 

    //线程运行标志

    private boolean isRunning = true;

    

    private DataInputStream dis = null;

    private DataOutputStream dos = null;

    private SocketConnection scn = null;

    

    public ClientSocketConnectionDemo() {

        super();



        form.append(tfAddress);

        form.append(tfPort);

        form.append(tfData);

        form.addCommand(cmdExit);

        form.addCommand(cmdConnect);

        form.setCommandListener(this);  

    }



    protected void startApp() throws MIDletStateChangeException {

        display = Display.getDisplay(this);

        display.setCurrent(form);

    }



    protected void pauseApp() {

        close();



    }



    protected void destroyApp(boolean arg0)

        throws MIDletStateChangeException {

        close();

    }



    /**

     * 处理命令按钮事件

     */

    public void commandAction(Command cmd, Displayable d) {

        if (cmd == cmdExit) {

            isRunning = false;

            notifyDestroyed();

        } else if(cmd == cmdSend) {

            //发送数据

            new Thread() {

                public void run() {

                    if (dos == null) {

                        return;

                    }

                    String str = tfData.getString();

                    try {

                        dos.writeUTF(str);

                    } catch (IOException e) {

                        e.printStackTrace();

                    }

                    //显示发送的消息

                    form.append("[S]  " + str + "\n");

                }

            }.start();

        } else if (cmd == cmdConnect) {

            form.removeCommand(cmdConnect);   

            form.addCommand(cmdSend);

            

            //开始客户端线程

            new Thread(this).start();

        }

    } 

    

    /**

     * 客户端线程

     */

    public void run() {

        isRunning = true;

        try {

            String constr = "socket://"+ tfAddress.getString()

            + ":" + tfPort.getString();

            scn = (SocketConnection) Connector.open(constr);

            scn.setSocketOption(SocketConnection.DELAY, 0);

            scn.setSocketOption(SocketConnection.LINGER, 5);

            scn.setSocketOption(SocketConnection.KEEPALIVE, 0);

            scn.setSocketOption(SocketConnection.RCVBUF, 128);

            scn.setSocketOption(SocketConnection.SNDBUF, 128);

            

            form.append("连接"+constr+"\n");

            form.append("Local address: " + scn.getLocalAddress()+"\n");

            form.append("Local Port: " + scn.getLocalPort()+"\n");

            

            //获得输入流

            dis = scn.openDataInputStream();

            //获得输出流

            dos = scn.openDataOutputStream();

            

            while (isRunning) {

                String str = dis.readUTF();

                //休息1秒

                Thread.sleep(1000);

                //显示接收到的消息

                form.append("[R]  " + str+"\n");

            }

            form.append("连接已经关闭");

        } catch (Exception e) {

            e.printStackTrace();

            //服务器关闭连接

            form.append("服务器连接断开");

            close();

        } finally {

            close();

        }

    }

    

    /**

     * 关闭Socket连接

     */

    public void close() {

        try {

            isRunning = false;



            if (dis != null) {

                dis.close();

                dis = null;

            }

            

            if (dos != null) {

                dos.close();

                dos = null;

            }

            

            if (scn != null) {

                scn.close();

                scn = null;

            }

            

            form.removeCommand(cmdSend);

            form.addCommand(cmdConnect);

        } catch (Exception e) {

            e.printStackTrace();

        }

    }



}