课 程 设 计 报 告 书 专 用 纸
girdBagCon = new GridBagConstraints(); girdBagCon.gridx = 1; girdBagCon.gridy = 3; girdBagCon.gridwidth = 3; girdBagCon.gridheight = 1;
girdBag.setConstraints(clientMessage,girdBagCon); downPanel.add(clientMessage);
girdBagCon = new GridBagConstraints(); girdBagCon.gridx = 4;
girdBagCon.gridy = 3;
girdBag.setConstraints(clientMessageButton,girdBagCon); downPanel.add(clientMessageButton); showStatus = new JTextField(35); showStatus.setEditable(false);
girdBagCon = new GridBagConstraints(); girdBagCon.gridx = 0; girdBagCon.gridy = 5;
girdBagCon.gridwidth = 5;
girdBag.setConstraints(showStatus,girdBagCon); downPanel.add(showStatus);
contentPane.add(messageScrollPane,BorderLayout.CENTER); contentPane.add(downPanel,BorderLayout.SOUTH); //关闭程序时的操作 this.addWindowListener(
new WindowAdapter(){ public void windowClosing(WindowEvent e){
if(type == 1){ DisConnect();
girdBagCon = new GridBagConstraints();
girdBagCon.gridx = 0; girdBagCon.gridy = 3;
girdBag.setConstraints(messageLabel,girdBagCon); downPanel.add(messageLabel);
girdBagCon.gridy = 2;
girdBagCon.insets = new Insets(1,0,0,0); //girdBagCon.ipadx = 5; //girdBagCon.ipady = 5;
girdBag.setConstraints(checkbox,girdBagCon); downPanel.add(checkbox);
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置
消息
//调出连接设置对话框
ConnectConf conConf = new ConnectConf(this,ip,port); conConf.setVisible(true); ip = conConf.userInputIp; port = conConf.userInputPort;
} /**
* 事件处理 */
public void actionPerformed(ActionEvent e) { Object obj = e.getSource(); if (obj == userItem || obj == userButton) { //用户信息设置
}
//调出用户信息设置对话框
UserConf userConf = new UserConf(this,userName); userConf.setVisible(true);
userName = userConf.userInputName;
}
System.exit(0);
} });
else if (obj == connectItem || obj == connectButton) { //连接服务端设
}
else if (obj == loginItem || obj == loginButton) { //登录 }
Connect();
else if (obj == logoffItem || obj == logoffButton) { //注销 DisConnect(); showStatus.setText(\}
else if (obj == clientMessage || obj == clientMessageButton) { //发送 }
SendMessage();
clientMessage.setText(\
else if (obj == exitButton || obj == exitItem) { //退出 int j=JOptionPane.showConfirmDialog(
this,\真的要退出吗?\退出\
JOptionPane.YES_OPTION,JOptionPane.QUESTION_MESSAGE); if(type == 1){ DisConnect(); }
System.exit(0);
if (j == JOptionPane.YES_OPTION){
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提示\
}
JOptionPane.DEFAULT_OPTION,JOptionPane.WARNING_MESSAGE); return;
public void Connect(){ try{
}
catch (Exception e){ JOptionPane.showConfirmDialog( this,\不能连接到指定的服务器。\\n请确认连接设置是否正确。\
socket = new Socket(ip,port);
}
}
else if (obj == helpItem) { //菜单栏中的帮助 //调出帮助对话框 Help helpDialog = new Help(this); }
helpDialog.setVisible(true); }
try{
output = new ObjectOutputStream(socket.getOutputStream()); output.flush();
input = new ObjectInputStream(socket.getInputStream() ); output.writeObject(userName);
output.flush(); recvThread =
ClientReceive(socket,output,input,combobox,messageShow,showStatus);
}
recvThread.start();
loginButton.setEnabled(false); loginItem.setEnabled(false); userButton.setEnabled(false); userItem.setEnabled(false);
connectButton.setEnabled(false); connectItem.setEnabled(false); logoffButton.setEnabled(true); logoffItem.setEnabled(true);
clientMessage.setEnabled(true);
messageShow.append(\连接服务器 \成功...\\n\type = 1;//标志位设为已连接
new
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} }
public void SendMessage(){ String toSomebody = combobox.getSelectedItem().toString(); String status = \ if(checkbox.isSelected()){
}
status = \悄悄话\catch (Exception e){ }
System.out.println(e); return;
public void DisConnect(){
loginButton.setEnabled(true); loginItem.setEnabled(true); userButton.setEnabled(true); userItem.setEnabled(true);
connectButton.setEnabled(true); connectItem.setEnabled(true); logoffButton.setEnabled(false); logoffItem.setEnabled(false); clientMessage.setEnabled(false); if(socket.isClosed()){ }
try{ output.writeObject(\用户下线\
output.flush(); input.close(); output.close(); socket.close();
messageShow.append(\已经与服务器断开连接...\\n\type = 0;//标志位设为未连接 return ;
}
catch (Exception e){ // }
Icon face=new ImageIcon(\
String action = actionlist.getSelectedItem().toString(); String message = clientMessage.getText(); if(socket.isClosed()){
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}
}
public static void main(String[] args) { new ChatClient(); }
}
try{
output.writeObject(\聊天信息\ output.flush();
output.writeObject(toSomebody); output.flush();
output.writeObject(action); output.flush();
output.writeObject(action); output.flush();
output.writeObject(message); output.flush(); return ;
}
catch (Exception e){ // }
（2）ClientReceive.java:该类是实现服务器端与客户端消息收发的类。
import javax.swing.*;
import java.io.*; import java.net.*; /*
* 聊天客户端消息收发类
*/
public class ClientReceive extends Thread {
private JComboBox combobox; private JTextArea textarea; Socket socket;
ObjectOutputStream output; ObjectInputStream input; JTextField showStatus;
public ClientReceive(Socket socket,ObjectOutputStream output,
input,JComboBox
combobox,JTextArea
ObjectInputStream textarea,JTextField showStatus){
this.socket = socket;
this.output = output; this.input = input;
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