eclipse中Client/Server程序生成exe

最新推荐文章于 2020-12-06 09:50:21 发布

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#clientserver #eclipse #exe #java

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本文介绍了一个简单的Java聊天室应用，包括Server端和Client端的实现。Server端负责监听指定端口并管理客户端连接，Client端则提供图形界面供用户输入消息，并通过网络发送到Server端。

先建两个Java Project项目，一个写Client，一个写Server端程序，程序大致为一个Server端建立监听某个端口，多个Client端可以连接，实现如下：

1. Server端

importjava.io.*;

importjava.net.*;

importjava.util.*;

publicclass SimpleChatServer {

    ArrayList<PrintWriter>clientOutputStreams;

    public static void main(String[]args){

        new SimpleChatServer().go();

    }

   public class ClientHandler implementsRunnable{

        BufferedReader reader;

        Socket sock;

        public ClientHandler(SocketclientSocket){

            try{

                sock = clientSocket;

                InputStreamReader isReader =new InputStreamReader(sock.getInputStream());

                reader = newBufferedReader(isReader);

            }catch(Exception ex){

                ex.printStackTrace();

           }

        }

        public void run() {

            String message;

            try{

                while((message =reader.readLine()) != null){

                   System.out.println("read " + message);

                    tellEveryone(message);

                }

            }catch(Exception ex){

                ex.printStackTrace();

            }

        }

    }



    public void tellEveryone(Stringmessage){

        Iterator<PrintWriter> it =clientOutputStreams.iterator();

        while(it.hasNext()){

            try{

                PrintWriter writer =(PrintWriter)it.next();

                writer.println(message);

                writer.flush();

            }catch(Exception ex){

                ex.printStackTrace();

            }

        }

    }

public void go(){

        clientOutputStreams = newArrayList<PrintWriter>();

        try{

            ServerSocket serverSock = newServerSocket(2310);

            while(true){

                Socket clientSocket =serverSock.accept();

                PrintWriter writer = newPrintWriter(clientSocket.getOutputStream());

               clientOutputStreams.add(writer);

                Thread t = new Thread(newClientHandler(clientSocket));

                t.start();

                System.out.println("got aconnection");

            }

        }catch(Exception ex){

            ex.printStackTrace();

        }

    }

}

2. Client端

importjava.io.*;

importjava.net.*;

importjavax.swing.*;

importjava.awt.*;

importjava.awt.event.*;

importjavax.swing.JOptionPane;

publicclass SimpleChatClient {

    JTextArea incoming;

    JTextField outgoing;

    BufferedReader reader;

    PrintWriter writer;

    Socket sock;

    static String clientName;

    public static void main(String[] args){

        SimpleChatClient client = newSimpleChatClient();

        clientName = JOptionPane.showInputDialog("Pleaseinput the client name :");

        client.go();

    }

    public void go() {

        // build GUI

        JFrame frame = new JFrame(clientName +"'s Chat Client");

        JPanel mainPanel = new JPanel();

        incoming = new JTextArea(15,20);

        incoming.setLineWrap(true);

        incoming.setWrapStyleWord(true);

        incoming.setEditable(false);

        JScrollPane qScroller = newJScrollPane(incoming);

        qScroller.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS);

       qScroller.setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER);

        outgoing = new JTextField(20);

        JButton sendButton = newJButton("Send");

        sendButton.addActionListener(newSendButtonListener());

        mainPanel.add(qScroller);

        mainPanel.add(outgoing);

        mainPanel.add(sendButton);

        setUpNetworking();

        Thread readerThread = new Thread(newIncomingReader());

        readerThread.start();

       frame.getContentPane().add(BorderLayout.CENTER, mainPanel);

        frame.setSize(400,500);

        frame.setVisible(true);

    } // close go

    private void setUpNetworking() {

        try {

            sock = newSocket("127.0.0.1", 2310);

            InputStreamReader streamReader =new InputStreamReader(sock.getInputStream());

            reader = newBufferedReader(streamReader);

            writer = newPrintWriter(sock.getOutputStream());

            System.out.println("networkingestablished");

        } catch(IOException ex) {

            ex.printStackTrace();

        }

    } // close setUpNetworking

  public class SendButtonListener implementsActionListener {

        public void actionPerformed(ActionEventev) {

            try {

               writer.println(clientName+" says:\n"+outgoing.getText());

                writer.flush();

            } catch(Exception ex) {

                ex.printStackTrace();

            }

           outgoing.setText("");

            outgoing.requestFocus();

        }

    } //close SendButtonListener inner class

    public class IncomingReader implementsRunnable {

        public void run() {

            String message = null;

            try {

                while ((message =reader.readLine()) != null) {

                   System.out.println("read " + message);

                    incoming.append(message +"\n");

                } // close while

            } catch(Exception ex){ex.printStackTrace();}

        } // close run

    } // close inner class

}

下面以Server端生成exe为例进行讲解：

1.导出jar文件

选中你的项目---然后右击弹出选项列表---选择Export---Java---jarfile---next---browser(选择jar的存放路径)---next---next(不管太多继续下一步)---browser(选择你程序的主类--OK)---finish

2.安装exe4j

利用exe4j这个软件转换jar文件为exe文件,exe4j下载地址：http://www.ej-technologies.com/download/exe4j/files.html.

3.exe4j安装完成后

1.运行后直接点Next.

2.选择第二项“JAR in EXE mode”,之后点击Next.

3.在General---Short name of your application框中输入你的应用程序的名字(随便即可),在Directories---Outputdirectory框中输入生成exe后的保存路径,然后Next.

4.在Excutable name框中输入将要生成的exe的名字，“Icon File”是应用程序显示的小图标,不选也行.继续Next.

5.必须先配置Class-Path，点击+号添加文件，即jar文件，如果有用到其它资源需要把资源一起添加进去.

6.General --- Main Class选择主类.

7.Java Version --- Minimum version(低版本必须填写)，Maximumversion(高版本可以为空)，如果都有填写那么高版本的值必须大于低版本的值.

8.勾选Allow JREs with a beta version number以及Only allow JDKs andno JREs.接着Next.到这一步你可以直接finish.这样就把jar转换成exe文件了.你可以点击Click Here to Start the Application按钮测试生成的文件.

Client端生成exe步骤同上。