loginstart.java

这是一个功能不错的多人聊天室．可以多人联机

package net.yangzhe.chatSocket;

import java.awt.BorderLayout;
import java.io.IOException;
import java.net.InetAddress;
import java.net.UnknownHostException;

import javax.swing.JPanel;
import javax.swing.JFrame;
import javax.swing.JButton;
import javax.swing.JTextField;
import javax.swing.JLabel;

public class LoginStart extends JFrame {

	private JPanel jContentPane = null;
	String ip;
	private JButton jButton = null;
	private JTextField jTextField = null;
	private JLabel jLabel = null;
	private JLabel jLabel2 = null;
	private LoginPanel loginPanel1 = null;

	/**
	 * This is the default constructor
	 * @throws IOException 
	 * @throws UnknownHostException 
	 */
	public LoginStart() throws UnknownHostException, IOException {
		super();
		initialize();
		this.setDefaultCloseOperation(EXIT_ON_CLOSE);
	}

	/**
	 * This method initializes this
	 * 
	 * @return void
	 * @throws IOException 
	 * @throws UnknownHostException 
	 */
	private void initialize() throws UnknownHostException, IOException {
		this.setSize(463, 329);
		this.setLocation(new java.awt.Point(300,300));
		this.setResizable(false);
		this.setContentPane(getJContentPane());
		this.setTitle("登陆");
	}

	/**
	 * This method initializes jContentPane
	 * 
	 * @return javax.swing.JPanel
	 * @throws IOException 
	 * @throws UnknownHostException 
	 */
	private JPanel getJContentPane() throws UnknownHostException, IOException {
		if (jContentPane == null) {
			jLabel = new JLabel();
			jLabel.setBounds(new java.awt.Rectangle(78,55,186,45));
			jLabel.setText("输入服务器ip地址：");
			jLabel2 = new JLabel();
			jLabel2.setBounds(new java.awt.Rectangle(83,224,270,47));
			jLabel2.setText("");
			jContentPane = new JPanel();
			jContentPane.setLayout(null);
			jContentPane.add(getJButton(), null);
			jContentPane.add(getJTextField(), null);
			jContentPane.add(jLabel, null);
			jContentPane.add(jLabel2, null);
			jContentPane.add(getLoginPanel1(), null);
			loginPanel1.hide();
			
		}
		return jContentPane;
	}

	/**
	 * This method initializes jButton	
	 * 	
	 * @return javax.swing.JButton	
	 */
	private JButton getJButton() {
		if (jButton == null) {
			jButton = new JButton();
			jButton.setBounds(new java.awt.Rectangle(140,164,146,39));
			jButton.setText("检测服务器状态");
			jButton.addActionListener(new java.awt.event.ActionListener() {
				public void actionPerformed(java.awt.event.ActionEvent e) {
					try {
						Client client = new Client(InetAddress.getByName(jTextField.getText()));
						client.sendNews("%t%tTestServer");
						String r= client.getNews();
						if(r.equals("%t%tOK")){
							ip=jTextField.getText();
							loginPanel1.connectServer(ip);
							jLabel.hide();
							jLabel2.hide();
							jTextField.hide();
							jButton.hide();
							//jContentPane.add(getLoginPanel1(), null);
							loginPanel1.show();
							client.sendNews("%end");
							client.sendNews("%end");
							if(client.getNews()!=null)
								client.server.close();
						}else{
							jLabel2.setText("Server occurs error.");
						}
					} catch (Exception e1) {
						// TODO Auto-generated catch block
						jLabel2.setText("The server is no found.");
						e1.printStackTrace();
					}
					System.out.println("actionPerformed()"); // TODO Auto-generated Event stub actionPerformed()
				}
			});
		}
		return jButton;
	}

	/**
	 * This method initializes jTextField	
	 * 	
	 * @return javax.swing.JTextField	
	 */
	private JTextField getJTextField() {
		if (jTextField == null) {
			jTextField = new JTextField();
			jTextField.setText("127.0.0.1");
			jTextField.setBounds(new java.awt.Rectangle(76,111,274,37));
		}
		return jTextField;
	}

	/**
	 * This method initializes loginPanel1	
	 * 	
	 * @return net.yangzhe.chatSocket.LoginPanel	
	 * @throws IOException 
	 * @throws UnknownHostException 
	 */
	private LoginPanel getLoginPanel1() throws UnknownHostException, IOException {
		if (loginPanel1 == null) {
			loginPanel1 = new LoginPanel(ip);
			loginPanel1.setBounds(new java.awt.Rectangle(59,22,338,263));
		}
		return loginPanel1;
	}

	public static void main(String[] args) throws UnknownHostException, IOException{
		
		LoginStart ls =new LoginStart();
		ls.show();
	}
}  //  @jve:decl-index=0:visual-constraint="10,2"