基于局域网的多通道即时通讯软件 开发日记I

最近，天气寒冷阿:)大家出来聚下开个会什么的，都不愿意（这帮人懒阿，大家住的就是两层楼的距离！）所以，很多问题只好借助QQ来谈了，呵呵，问题是，校园网这个东东 还不是一般的慢，尽管它据说是IPV6的  而且，大家不同Group讨论（咳，注意了 那面和女朋友卿卿我我的）的时候，甚至还要开几个窗口，慢阿！

所以，我们觉得有必要开发一个小的局域网聊天软件，方便大家使用，因为考察了现有的一些产品，发现功能不能满足我们的需要，只好DIY了。

功能需求：MutiChannel ; LAN FILE Transport (speed) ;Voice;Video

采用C/S架构，部署于WebLogic应用服务

先开发了客户端：

java 代码

import java.awt.*;
import javax.swing.*;
import java.net.*;
import java.io.*;
import java.awt.event.*;

class  Connect extends JFrame implements ActionListener,ItemListener{
            /**
     *
     */
    private static final long serialVersionUID = 1L;

    private Socket client;//套接字
    private String hostName = "localhost";
    private int port = 6000;

    private JLabel nameLabel;
    private JTextField nameText;
    private JRadioButton boyRadio,girlRadio,secretRadio;
    private String sex ="";

    private JLabel hostLabel;
    private JLabel portLabel;
    private JTextField hostText;
    private JTextField portText;

    private JButton cancell;
    private JButton ok;

    private Container c;

    private BufferedReader in;
    private PrintWriter out;

    public Connect(){
        super("聊天登陆");

        c = this.getContentPane();
        c.setLayout(new BorderLayout());
        final Color defaultBackground = this.getBackground();

        hostLabel = new JLabel("地址：");
        portLabel = new JLabel("端口：");
        hostText = new JTextField(10);
        hostText.setText(hostName);         //设置默认值
        portText = new JTextField(4);
        portText.setText(Integer.toString(port));

        cancell = new JButton("放弃");
        ok = new JButton("连接");

        nameLabel = new JLabel("姓名：");
        nameText = new JTextField(10);
        boyRadio = new JRadioButton("男生");
        girlRadio = new JRadioButton("女生");
        secretRadio = new JRadioButton("保密");

        ButtonGroup sexGroup = new  ButtonGroup();
        sexGroup.add(boyRadio);
        sexGroup.add(girlRadio);
        sexGroup.add(secretRadio);

        //*********用户信息面板*********************//
        JPanel userInfoPanel = new JPanel(new FlowLayout(FlowLayout.LEFT));
        userInfoPanel.add(nameLabel);
        userInfoPanel.add(nameText);

        userInfoPanel.add(boyRadio);
        userInfoPanel.add(girlRadio);
        userInfoPanel.add(secretRadio);
        //***************************************//

        //****************连接服务器面板******************//
        JPanel centerPanel = new JPanel(new FlowLayout(FlowLayout.LEFT));
        centerPanel.add(hostLabel);
        centerPanel.add(hostText);
        centerPanel.add(portLabel);
        centerPanel.add(portText);
        //***************************************************//

        //*******************组合以上两个面板*****************//
        JPanel upperPanel = new JPanel(new GridLayout(2,1)); //面板
        upperPanel.setBorder(BorderFactory.createLineBorder(new Color(125,161,253),2));
        upperPanel.setBackground(new Color(70,61,129));
        upperPanel.add(userInfoPanel);
        upperPanel.add(centerPanel);
      //***************************************************//

        //****************连接确认连接的面板******************//
        JPanel lowerPanel = new JPanel();
        JLabel spaceLabel = new JLabel("");
        spaceLabel.setPreferredSize(new Dimension(20,20));
        lowerPanel.add(cancell);
        lowerPanel.add(spaceLabel);
        lowerPanel.add(ok);
        //***************************************************//

        //***************组合整个框架**********************//
        c.add(upperPanel,BorderLayout.CENTER);
        c.add(lowerPanel,BorderLayout.SOUTH);
        //**************************************************//

        //事件监听 单选
        boyRadio.addItemListener(this);
        girlRadio.addItemListener(this);
        secretRadio.addItemListener(this);

        //事件监听 按钮
        cancell.addActionListener(this);
        ok.addActionListener(this);

        this.setPreferredSize(new Dimension(350,150));
        this.setMaximumSize(new Dimension(350,150));

        this.pack();
        this.setResizable(false);  //设置不能最大化
        this.setVisible(true);
    }

    //事件 单选
     public void itemStateChanged(ItemEvent e){

         if (e.getSource() == boyRadio){
            sex = "Boy";
         }
         if (e.getSource() == girlRadio){
            sex = "Girl";
         }
         if (e.getSource() == secretRadio){
            sex = "Secret";
         }

     }

    //事件 按钮
    public void actionPerformed(ActionEvent e){
        if(e.getSource() == cancell){
            this.shutDown();
        }
        else if (e.getSource() == ok){
            if ((nameText.getText()).trim().length() == 0){
                JOptionPane.showMessageDialog(this,"请输入一个名字","提示",JOptionPane.INFORMATION_MESSAGE);
                return;
            }
            else if (sex.length() == 0){
                JOptionPane.showMessageDialog(this,"请选择性别","提示",JOptionPane.INFORMATION_MESSAGE);
                return;
            }
            else{
                try{
                    this.link();
                    ChatFrame app = new ChatFrame();
                     app.init(in,out,nameText.getText());
                    ok.setEnabled(false); //确保不会被再次点击
                    this.setVisible(false);
                }catch (Exception ee){
                    JOptionPane.showMessageDialog(this,"登陆失败","失败",JOptionPane.ERROR_MESSAGE);
                    return;
                }
            }
        }
    }

    public void link() throws Exception{            //连接服务器

        hostName = hostText.getText().trim();
        port = Integer.parseInt(portText.getText());
        client = new Socket(hostName,port);

        in = new BufferedReader(new InputStreamReader(client.getInputStream()));
        out = new PrintWriter(client.getOutputStream());
        out.println(nameText.getText()+"&"+sex);
        out.flush();

        /**
        catch(NumberFormatException nfe){
            System.out.println(nfe);
        //  return false;
        }
        catch(Exception e){
            System.out.println(e);
        //  return false;
        }
        //return true;
        */
    }

  public void shutDown() {
      System.exit(0);
    }

    public static void main(String[] args) {
        Connect app = new Connect();

        app.addWindowListener(
            new WindowAdapter(){
                public void windowClosing(WindowEvent e){
                    System.exit(0);
                }
            }
        );
    }
}

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• 2007-01-20 19:53
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