节点自动生成器

    放假了跟着导师做NS2的项目，在运行leach协议的时候涉及到一个节点的设置，带我们小组的研究生让我们写个节点生成器，这样就可以省了自己定义节点X，Y坐标了。于是晚上回来就自己写了个，虽然比较丑陋，但是还是很实用的，主要用到了两个类，一个是随机位置产生类，以及调用这个类的显示类。

 

随机节点类：

 

RandomNode.java

package com.imis.node;

import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.Writer;
import java.util.Random;

public class RandomNode {

	public boolean generateNode(int nodeNum) {

		Random random;
		File file;
		Writer writer = null;
		try {
			file = new File(nodeNum + "nodes.txt");
			writer = new FileWriter(file);
			for (int n = 0; n < 2 * nodeNum; n++) {
				random = new Random();
				String after = "";
				String before = "";
				for (int i = 0; i < 15; i++) {
					after = after + random.nextInt(10);
				}
				before = before + random.nextInt(100);
				if (n % 2 == 0) {
					writer.write(before + "." + after + "       ");
				} else {
					writer.write(before + "." + after + "\n");
				}
			}
			writer.flush();
			return true;
		} catch (IOException e) {
			e.printStackTrace();
			return false;
		} finally {
			try {
				writer.close();
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
	}
}

 

显示类：

enerateGUI.java

package com.imis.node;

import java.awt.GridLayout;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

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

public class GenerateGUI extends JFrame implements ActionListener {

	private static final long serialVersionUID = 1L;

	public static void main(String[] args) {
		new GenerateGUI();
	}

	RandomNode randomNode;
	JPanel jp1, jp2;
	JTextField jtf;
	JButton jb1, jb2;
	JLabel jl1;

	public GenerateGUI() {
		this.setTitle("节点位置随机产生器");
		// 设置窗体大小
		this.setSize(300, 200);
		// 窗体不可更改大小
		this.setResizable(false);
		this.setLayout(new GridLayout(2, 1));
		// 获取屏幕宽度和高度
		int width = Toolkit.getDefaultToolkit().getScreenSize().width;
		int height = Toolkit.getDefaultToolkit().getScreenSize().height;
		// 设置窗体位置
		this.setLocation((width - 300) / 2, (height - 200) / 2);
		this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		this.setVisible(true);

		jp1 = new JPanel(null);
		jp2 = new JPanel(null);
		jtf = new JTextField();
		jtf.setBounds(75, 50, 150, 23);
		jl1 = new JLabel("请输入节点个数：");
		jl1.setBounds(75, 20, 130, 23);
		jb1 = new JButton("确定");
		jb1.setBounds(80, 24, 60, 25);
		jb1.addActionListener(this);
		jb2 = new JButton("退出");
		jb2.setBounds(150, 24, 60, 25);
		jb2.addActionListener(this);

		jp1.add(jl1);
		jp1.add(jtf);

		jp2.add(jb1);
		jp2.add(jb2);

		this.add(jp1);
		this.add(jp2);

		randomNode = new RandomNode();
	}

	@Override
	public void actionPerformed(ActionEvent arg0) {
		if (arg0.getSource() == jb1) {
			if (jtf.getText().trim().equals("")) {
				JOptionPane.showMessageDialog(this, "请输入节点个数!");
			}
			try {
				int i = Integer.parseInt(jtf.getText().trim());
				boolean success = randomNode.generateNode(i);
				if (success) {
					JOptionPane.showMessageDialog(this, "生成成功!");
					jtf.setText("");
				}
			} catch (Exception e) {
				JOptionPane.showMessageDialog(this, "请输入整数!");
				jtf.setText("");
			}

		}
		if (arg0.getSource() == jb2) {
			System.exit(0);
		}

	}
}

 运行完后会产生一个节点个数+nodes.txt，例如100nodes.txt。