crcserver.java

网路原理实验中的循环冗余校验算法

import java.awt.*;
import java.awt.Frame;
import java.awt.Label;
import java.awt.TextField;
import java.awt.event.*;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.net.Socket;
import java.util.ArrayList;
import javax.swing.*;
import javax.swing.border.BevelBorder;

public class CrcServer extends JFrame {
	JLabel l = new JLabel("输入协商多项式");

	JTextField tf = new JTextField();

	JTextField info = new JTextField("info");

	JButton bt = new JButton("提交");

	int[] p;

	boolean flag = false;

	public static void main(String[] args) {
		new CrcServer().ServerView();
	}

	void ServerView() {
		l.setBounds(80, 100, 100, 30);
		l.setBorder(new BevelBorder(1, Color.BLUE, Color.BLUE));
		tf.setBounds(200, 100, 100, 30);
		bt.setBounds(320, 100, 70, 30);
		bt.setBorder(new BevelBorder(1, Color.BLUE, Color.BLUE));
		info.setBounds(80, 150, 250, 30);
		info.setEnabled(false);
		this.setSize(500, 300);
		this.setLocation(100, 100);
		this.setVisible(true);
		this.setLayout(null);
		this.add(tf);
		this.add(bt);
		this.add(l);
		this.add(info);
		btLis b1 = new btLis();
		bt.addActionListener(b1);
		this.setBackground(Color.lightGray);

		// this.setResizable(false);

		this.setTitle("计科061319 肖亮");
		this.addWindowListener(new MyWindowMonitor());

	}

	class MyWindowMonitor extends WindowAdapter {
		public void windowClosing(WindowEvent e) {
			setVisible(false);
			// notconnect();
			System.exit(0);
		}
	}

	class btLis implements ActionListener {

		public void actionPerformed(ActionEvent e) {
			flag = true;
			try {
				String num = tf.getText();
				int x = num.length();
				p = new int[x];
				if (x > 0) {
					for (int i = 0; i < num.length(); i++) {
						int j = num.charAt(i) - 48;
						if (i == 0 || i == num.length() - 1) {
							if (j == 0) {
								tf.setText("");
								info.setText("输入有错，请重新输入");
								flag = false;
							} else if (j == 0 || j == 1) {
								p[i] = j;
							} else {
								tf.setText("");
								info.setText("输入有错，请重新输入");
								flag = false;
							}
						}
						if (j == 0 || j == 1) {
							p[i] = j;
						} else {
							tf.setText("");
							info.setText("输入有错，请重新输入");
							flag = false;
						}
					}
				} else {
					info.setText("请输入多项式");
					flag = false;
				}
				for (int i = 0; i < p.length; i++) {
					System.out.println(p[i]);
				}
			} catch (NumberFormatException e1) {
				tf.setText("");
				info.setText("输入有错，请重新输入");
				flag = false;
				// e1.printStackTrace();
			}
			if (flag) {
				dispose();
				ReThread r = new ReThread();
				r.start();
				new CrcSend(p).SendView();
				// new CrcRecieve(p).RecieveView();

			}
		}
	}

	class ReThread extends Thread {

		public void run() {
			new CrcRecieve(p).RecieveView();
		}
	}
}