package six;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.EventQueue;
import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.IOException;
import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.net.InetAddress;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextArea;
import javax.swing.JTextField;
import javax.swing.border.LineBorder;
import javax.swing.border.TitledBorder;

public class UDPServer {

	private JFrame frame;
	private JTextField textField;
	private JTextField textField_1;
	DatagramSocket ds;

	/**
	 * Launch the application.
	 */
	public static void main(String[] args) {
		EventQueue.invokeLater(new Runnable() {
			public void run() {
				try {
					UDPServer window = new UDPServer();
					window.frame.setVisible(true);
				} catch (Exception e) {
					e.printStackTrace();
				}
			}
		});
	}

	/**
	 * Create the application.
	 */
	public UDPServer() {
		initialize();
	}

	/**
	 * Initialize the contents of the frame.
	 */
	private void initialize() {
		frame = new JFrame();
		frame.setTitle("服务器");
		frame.setBounds(100, 100, 466, 341);
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

		JPanel panel = new JPanel();
		frame.getContentPane().add(panel, BorderLayout.WEST);
		panel.setBorder(new TitledBorder(new LineBorder(new Color(0, 0, 0)), "登录情况", TitledBorder.LEADING,
				TitledBorder.TOP, new Font("微软雅黑", Font.PLAIN, 12), new Color(59, 59, 59)));

		JTextArea textArea_1 = new JTextArea();
		textArea_1.setEditable(false);
		textArea_1.setLineWrap(true);
		textArea_1.setRows(13);
		textArea_1.setColumns(8);
		panel.add(textArea_1);

		JPanel panel_1 = new JPanel();
		frame.getContentPane().add(panel_1, BorderLayout.EAST);
		panel_1.setBorder(new TitledBorder(new LineBorder(new Color(0, 0, 0)), "文件列表", TitledBorder.LEADING,
				TitledBorder.TOP, new Font("微软雅黑", Font.PLAIN, 12), new Color(59, 59, 59)));

		JTextArea textArea_2 = new JTextArea();
		textArea_2.setEditable(false);
		textArea_2.setRows(13);
		textArea_2.setLineWrap(true);
		textArea_2.setColumns(8);
		panel_1.add(textArea_2);

		JTextArea textArea = new JTextArea();
		textArea.setEditable(false);
		textArea.setLineWrap(true);
		textArea.setRows(10);
		textArea.setColumns(6);
		frame.getContentPane().add(textArea, BorderLayout.CENTER);
		textArea.setBorder(new TitledBorder(new LineBorder(new Color(0, 0, 0)), "交流情况", TitledBorder.LEADING,
				TitledBorder.TOP, new Font("微软雅黑", Font.PLAIN, 12), new Color(59, 59, 59)));

		JPanel panel_2 = new JPanel();
		frame.getContentPane().add(panel_2, BorderLayout.NORTH);

		JLabel lblNewLabel = new JLabel("ip:");
		panel_2.add(lblNewLabel);

		textField = new JTextField();
		textField.setText("127.0.0.1");
		panel_2.add(textField);
		textField.setColumns(6);

		JLabel lblNewLabel_1 = new JLabel("port:");
		panel_2.add(lblNewLabel_1);

		textField_1 = new JTextField();
		textField_1.setText("1024");
		panel_2.add(textField_1);
		textField_1.setColumns(5);

		JButton btnNewButton = new JButton("启动");
		btnNewButton.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				btnNewButton.setEnabled(false);
				try {
					// String ip = textField.getText();
					int cport = Integer.parseInt(textField_1.getText());
					// 创建数据接收码头，
					ds = new DatagramSocket(cport);
					
				} catch (IOException e1) {

					e1.printStackTrace();
				}
				new Thread(new Runnable() {
					@Override
					public void run() {
						try {
							while (true) {
								// 创建数据接收的数据缓冲区
								byte[] buf = new byte[1024];
								DatagramPacket dp = new DatagramPacket(buf, buf.length);

								// 接受来自端口1024的数据包，并存储在集装箱datagramPacket中：注意一旦服务器开启，就会自动监听3000端口
								// 如果没有数据，则进行阻塞
								ds.receive(dp);
								// 解析数据包中的信息
								String data = new String(dp.getData(), 0, dp.getLength());
								int sport = dp.getPort();
								// InetAddress ip = dp.getAddress();
								textArea.append("第" + sport + "号客户" + " 消息：" + data + "\n");
								//textArea_1.append("第" + sport + "号客户" + " 登录");

							}
						} catch (Exception e) {
							e.printStackTrace();
						}
					}
				}).start();
			}
		});
		panel_2.add(btnNewButton);
	}

}