文件加密解密程序.docxVIP

import java.awt.*; import java.awt.event.*; import java.io.*; import javax.swing.*; public class key extends JFrame { int shu1; JLabel jl1, jl2; String cc; JButton queding, xuanz, jiami, jiemi; JTextField lujin, key; JTextArea nr; JRadioButton qu, xie; ButtonGroup fz; File f; public key() { this.setTitle(Java 加密与解密); Container c = getContentPane(); JPanel jp1 = new JPanel(); jl1 = new JLabel(输入路径); lujin = new JTextField(15); xuanz = new JButton(选择); jp1.add(jl1); jp1.add(lujin); jp1.add(xuanz); c.add(jp1, BorderLayout.NORTH); nr = new JTextArea(); c.add(new JScrollPane(nr), BorderLayout.CENTER); qu = new JRadioButton(写入); xie = new JRadioButton(取出, true); fz = new ButtonGroup(); fz.add(qu); fz.add(xie); jl2 = new JLabel(密钥); key = new JTextField(15); jiami = new JButton(加密); jiemi = new JButton(解密); JPanel jp4 = new JPanel(); jp4.setLayout(new GridLayout(2, 1, 5, 5)); JPanel jp2 = new JPanel(); jp2.add(jl2); jp2.add(key); jp2.add(jiami); jp2.add(jiemi); jp4.add(jp2); JPanel jp3 = new JPanel(); queding = new JButton(确定); jp3.add(qu); jp3.add(xie); jp3.add(queding); jp4.add(jp3); c.add(jp4, BorderLayout.SOUTH); queding.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent event) { jian(); if (qu.isSelected()) shuchu(); if (xie.isSelected()) qu(); } }); xuanz.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent event) { JFileChooser fileChooser = new JFileChooser(); // 实例化文件选择器 fileChooser .setFileSelectionMode(JFileChooser.FILES_AND_DIRECTORIES); // 设置文件选择模式 , 此处为文件和目录均可 if (fileChooser.showOpenDialog(key.this) == JFileChooser.APPROVE_OPTION) { //弹出文件 选择器,并判断是否点击了打开按钮 String fileName = fileChooser.getSelectedFile() .getAbsolutePath(); // 得到选择文件或者目录的绝对路径 lujin.setText(fileName); } } }); jiemi.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent event) { ObjectInputStream input; try { input = new ObjectInputStream(new FileInputStream(lujin .getText())); int mima = Integer.parseInt(key