聊天程序设计实验报告

JAVA语言,聊天室实验报告

XX

专业名称

实 验 室

实验课程

实验名称

姓 名 学 号 同组人员

实验日期 XXXX大学 软件工程 2号实验楼201室 JAVA高级程序设计 聊天程序设计（客户端、服务端） 无 2013年12月12日

JAVA语言,聊天室实验报告

一、实验目的

掌握基于TCP、UDP协议的聊天服务器端与客户端程序设计，掌握Socket, ServerSocket,

DatagramSocket, DatagramPacket类的使用。

二、实验原理

TCP和UDP协议的支持。ServerSocket和Socket的使用。

三、实验内容

实验截图

JAVA语言,聊天室实验报告

代码

import java.awt.Point;

import java.io.BufferedReader;

import java.io.IOException;

import java.io.InputStreamReader;

import java.io.PrintWriter;

import .ServerSocket;

import .Socket;

import java.text.DateFormat;

import java.util.Date;

import java.util.HashMap;

import java.util.Vector;

import java.util.logging.Level;

import java.util.logging.Logger;

/**

*

* @author

*/

public classextends javax.swing.JFrame {

private ServerSocket server;

private int = 0;

private char[] chatBuf = new char[2048];

private String chatIpAddress = "127.0.0.1";

private final int chatPort = 5200;

private HashMap<String, Vector<IMessage>> chatRecordsMap;

//private HashMap<String, Integer> chatRecordHMap;

public TalkHome() {

initComponents();

chatRecordsMap = new HashMap<String, Vector<IMessage>>();

//chatRecordHMap = new HashMap<String, Integer>();

try {

server = new ServerSocket(Integer.valueOf(chatPort));

} catch (IOException ex) {

Logger.getLogger(TalkHome.class.getName()).log(Level.SEVERE,

null, ex);

}

new Thread(new Runnable() {

@Override

public void run() {

while(true){

try {

Socket socket = server.accept();

JAVA语言,聊天室实验报告

BufferedReader sin = new BufferedReader(new

InputStreamReader(socket.getInputStream()));

int tmp_len = -1;

StringBuilder chatStrBuilder = new StringBuilder();

while((tmp_len = sin.read(chatBuf)) != -1) {

chatStrBuilder.append(chatBuf, 0, tmp_len);

}

addMessage(socket.getInetAddress().getHostAddress(),

chatStrBuilder.toString(), false);

sin.close();

socket.close();

} catch (IOException ex) {

Logger.getLogger(TalkHome.class.getName()).log(Level.SEVERE, null, ex);

}

}

}

}).start();

}

private void reChatWindow(String ipAddress) {

System.out.println(ipAddress);

Vector<IMessage> chatRecords = chatRecordsMap.get(ipAddress);

jTextArea1.setText("");

if(chatRecords == null) {

chatRecords = new Vector<IMessage>();

chatRecordsMap.put(ipAddress, chatRecords);

}

else {

for(IMessage iMess : chatRecords) {

if(iMess.ismyself) {

jTextArea1.append("我 "+iMess.dateString+"

"+iMess.timeString+"\n"+iMess.messString+"\n\n");

}

else {

jTextArea1.append("TA " +iMess.dateString+"

"+iMess.timeString+"\n"+iMess.messString+"\n\n");

}

}

}

}

private void addMessage(final String ipAddress, String messString, boolean

ismyself) {

Vector<IMessage> chatRecords = chatRecordsMap.get(ipAddress);

if(chatRecords == null) {

JAVA语言,聊天室实验报告

chatRecords = new Vector<IMessage>();

chatRecordsMap.put(ipAddress, chatRecords);

}

final IMessage iMessage = new IMessage(messString, ismyself);

chatRecords.add(iMessage);

if(ismyself) {

new Thread(new Runnable() {

@Override

public void run() {

try {

Socket sendMessage = new Socket(ipAddress, chatPort);

PrintWriter sendWindow = new

PrintWriter(sendMessage.getOutputStream());

sendWindow.print(iMessage.messString);

sendWindow.flush();

sendWindow.close();

sendMessage.close();

jTextArea1.append("我 " +iMessage.dateString+"

"+iMessage.timeString+"\n"+iMessage.messString+"\n\n");

} catch (IOException ex) {

Logger.getLogger(TalkHome.class.getName()).log(Level.SEVERE, null, ex);

}

}

}).start();

}

else {

jTextArea1.append("TA "+iMessage.dateString+"

"+iMessage.timeString+"\n"+iMessage.messString+"\n\n");

}

}

@SuppressWarnings()

private void initComponents() {

jCheckBox1 = new javax.swing.JCheckBox();

jScrollPane2 = new javax.swing.JScrollPane();

jTextArea2 = new javax.swing.JTextArea();

jButton2 = new javax.swing.JButton();

jFormattedTextField1 = new javax.swing.JFormattedTextField();

jFormattedTextField2 = new javax.swing.JFormattedTextField();

jLabel1 = new javax.swing.JLabel();

jLabel2 = new javax.swing.JLabel();

JAVA语言,聊天室实验报告

jPanel3 = new javax.swing.JPanel();

jComboBox1 = new javax.swing.JComboBox();

jLabel3 = new javax.swing.JLabel();

jScrollPane3 = new javax.swing.JScrollPane();

jTextArea1 = new javax.swing.JTextArea();

jCheckBox1.setText("jCheckBox1");

setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE); setBackground(new java.awt.Color(255, 255, 255));

setBounds(new java.awt.Rectangle(0, 0, 520, 520));

setCursor(new java.awt.Cursor(java.awt.Cursor.DEFAULT_CURSOR));

setModalExclusionType(java.awt.Dialog.ModalExclusionType.APPLICATION_EXCLUDE);

jTextArea2.setColumns(20);

jTextArea2.setFont(new java.awt.Font("微软雅黑", 0, 14)); // NOI18N jTextArea2.setLineWrap(true);

jTextArea2.setRows(5);

jScrollPane2.setViewportView(jTextArea2);

jButton2.setText(" 发送 ");

jButton2.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { jButton2ActionPerformed(evt);

}

});

jFormattedTextField1.setText("127.0.0.1");

jFormattedTextField1.setToolTipText("");

jFormattedTextField2.setText("5200");

jFormattedTextField2.setToolTipText("");

jLabel1.setText("IP:");

jLabel2.setText(":");

jPanel3.setBackground(new java.awt.Color(255, 255, 255));

jComboBox1.setModel(new javax.swing.DefaultComboBoxModel(new String[] { "127.0.0.1", "172.16.202.19", "172.18.254.216" }));

jComboBox1.addItemListener(new java.awt.event.ItemListener() {

JAVA语言,聊天室实验报告

public void itemStateChanged(java.awt.event.ItemEvent evt) { jComboBox1ItemStateChanged(evt);

}

});

jLabel3.setText("对方IP：");

jLabel3.setToolTipText("");

javax.swing.GroupLayout jPanel3Layout = new

javax.swing.GroupLayout(jPanel3);

jPanel3.setLayout(jPanel3Layout);

jPanel3Layout.setHorizontalGroup(

jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)

.addGroup(jPanel3Layout.createSequentialGroup()

.addContainerGap()

.addComponent(jLabel3)

.addPreferredGap(ponentPlacement.UNRELATED)

.addComponent(jComboBox1,

javax.swing.GroupLayout.PREFERRED_SIZE, 131,

javax.swing.GroupLayout.PREFERRED_SIZE)

.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))

);

jPanel3Layout.setVerticalGroup(

jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)

.addGroup(jPanel3Layout.createSequentialGroup()

.addGap(22, 22, 22)

.addGroup(jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)

.addComponent(jComboBox1,

javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)

.addComponent(jLabel3))

.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))

);

jTextArea1.setEditable(false);

jTextArea1.setColumns(20);

JAVA语言,聊天室实验报告

jTextArea1.setFont(new java.awt.Font("微软雅黑", 0, 14)); // NOI18N jTextArea1.setLineWrap(true);

jTextArea1.setRows(5);

jScrollPane3.setViewportView(jTextArea1);

javax.swing.GroupLayout layout = new

javax.swing.GroupLayout(getContentPane());

getContentPane().setLayout(layout);

layout.setHorizontalGroup(

layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(javax.swing.GroupLayout.Alignment.TRAILING,

layout.createSequentialGroup()

.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)

.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()

.addGap(2, 2, 2)

.addComponent(jLabel1)

.addPreferredGap(ponentPlacement.RELATED)

.addComponent(jFormattedTextField1,

javax.swing.GroupLayout.PREFERRED_SIZE, 104,

javax.swing.GroupLayout.PREFERRED_SIZE)

.addPreferredGap(ponentPlacement.RELATED)

.addComponent(jLabel2,

javax.swing.GroupLayout.PREFERRED_SIZE, 6,

javax.swing.GroupLayout.PREFERRED_SIZE)

.addPreferredGap(ponentPlacement.RELATED)

.addComponent(jFormattedTextField2,

javax.swing.GroupLayout.PREFERRED_SIZE, 43,

javax.swing.GroupLayout.PREFERRED_SIZE)

.addPreferredGap(ponentPlacement.RELATED, 123, Short.MAX_VALUE)

.addComponent(jButton2))

.addComponent(jScrollPane2)

.addComponent(jScrollPane3))

.addPreferredGap(ponentPlacement.RELATED)

.addComponent(jPanel3, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE,

javax.swing.GroupLayout.PREFERRED_SIZE)

JAVA语言,聊天室实验报告

.addContainerGap())

);

layout.setVerticalGroup(

layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(layout.createSequentialGroup()

.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)

.addComponent(jPanel3,

javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)

.addComponent(jScrollPane3,

javax.swing.GroupLayout.DEFAULT_SIZE, 358, Short.MAX_VALUE))

.addPreferredGap(ponentPlacement.RELATED)

.addComponent(jScrollPane2,

javax.swing.GroupLayout.DEFAULT_SIZE, 131, Short.MAX_VALUE)

.addPreferredGap(ponentPlacement.RELATED)

.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)

.addComponent(jButton2)

.addComponent(jFormattedTextField1,

javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)

.addComponent(jFormattedTextField2,

javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)

.addComponent(jLabel2)

.addComponent(jLabel1))

.addGap(2, 2, 2))

);

pack();

}// </editor-fold>

addMessage(chatIpAddress, jTextArea2.getText(), true);

jTextArea2.setText("");

}

if(evt.getStateChange() == 1) {

private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) { private void jComboBox1ItemStateChanged(java.awt.event.ItemEvent evt) {

JAVA语言,聊天室实验报告

chatIpAddress = evt.getItem().toString();

reChatWindow(chatIpAddress);

}

}

private Point ;

/**

* @param args the command line arguments

*/

public static void main(String args[]) {

try {

for (javax.swing.UIManager.LookAndFeelInfo info :

javax.swing.UIManager.getInstalledLookAndFeels()) {

if ("Nimbus".equals(info.getName())) {

javax.swing.UIManager.setLookAndFeel(info.getClassName());

break;

}

}

} catch (ClassNotFoundException ex) {

java.util.logging.Logger.getLogger(TalkHome.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);

} catch (InstantiationException ex) {

java.util.logging.Logger.getLogger(TalkHome.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);

} catch (IllegalAccessException ex) {

java.util.logging.Logger.getLogger(TalkHome.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);

} catch (javax.swing.UnsupportedLookAndFeelException ex) {

java.util.logging.Logger.getLogger(TalkHome.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);

}

//</editor-fold>

/* Create and display the form */

java.awt.EventQueue.invokeLater(new Runnable() {

public void run() {

new TalkHome().setVisible(true);

}

});

JAVA语言,聊天室实验报告

}

// Variables declaration - do not modify

private javax.swing.JButton jButton2;

private javax.swing.JCheckBox jCheckBox1;

private javax.swing.JComboBox jComboBox1;

private javax.swing.JFormattedTextField jFormattedTextField1;

private javax.swing.JFormattedTextField jFormattedTextField2;

private javax.swing.JLabel jLabel1;

private javax.swing.JLabel jLabel2;

private javax.swing.JLabel jLabel3;

private javax.swing.JPanel jPanel3;

private javax.swing.JScrollPane jScrollPane2;

private javax.swing.JScrollPane jScrollPane3;

private javax.swing.JTextArea jTextArea1;

private javax.swing.JTextArea jTextArea2;

}

class IMessage {

public boolean ismyself;

public String messString;

public String dateString, timeString;

public IMessage(String mess, boolean ismyself) {

this.ismyself = ismyself;

this.messString = mess;

this.dateString = DateFormat.getDateInstance().format(new Date()); this.timeString = DateFormat.getTimeInstance().format(new Date()); }

}

四、实验心得

其实java已经将TCP和UDP协议高度封装了，熟练使用ServerSocket和Socket，DataGram会写出想要的网络程序，并不是很难。实验中遇到的问题有传送过来的数据显示成乱码，是因为编码的问题。

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