文件解密.java

小型的课程设计

/*
 * 文件解密.java
 *
 * Created on 2008年12月5日, 下午6:16
 */

/**
 *
 * @author  Administrator
 */
import javax.swing.*;
import java.io.*;

public class 文件解密 extends javax.swing.JFrame {

    String wzlj;
    File file;

    /** Creates new form 文件解密 */
    public 文件解密() {
        initComponents();
    }

    /** This method is called from within the constructor to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the Form Editor.
     */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
    private void initComponents() {

        jLabel1 = new javax.swing.JLabel();
        lujing = new javax.swing.JLabel();
        xuanze = new javax.swing.JButton();
        jLabel2 = new javax.swing.JLabel();
        mima = new javax.swing.JTextField();
        jiemi = new javax.swing.JButton();
        fanhui = new javax.swing.JButton();
        quxiao = new javax.swing.JButton();
        mimawen = new javax.swing.JLabel();
        tishi = new javax.swing.JLabel();
        jLabel4 = new javax.swing.JLabel();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        setTitle("\u6587\u4ef6\u89e3\u5bc6");
        addKeyListener(new java.awt.event.KeyAdapter() {
            public void keyPressed(java.awt.event.KeyEvent evt) {
                formKeyPressed(evt);
            }
        });

        jLabel1.setFont(new java.awt.Font("宋体", 1, 36));
        jLabel1.setText("\u6587\u4ef6\u89e3\u5bc6");

        lujing.setText("请选择路径！");

        xuanze.setFont(new java.awt.Font("宋体", 1, 12));
        xuanze.setText("\u9009 \u62e9");
        xuanze.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                xuanzeActionPerformed(evt);
            }
        });

        jLabel2.setFont(new java.awt.Font("宋体", 1, 14));
        jLabel2.setText("\u8bf7\u8f93\u5165\u5bc6\u7801\uff1a");

        mima.addKeyListener(new java.awt.event.KeyAdapter() {
            public void keyPressed(java.awt.event.KeyEvent evt) {
                mimaKeyPressed(evt);
            }
        });

        jiemi.setFont(new java.awt.Font("宋体", 1, 14));
        jiemi.setText("\u6587\u4ef6\u89e3\u5bc6");
        jiemi.setActionCommand("\u786e\u5b9a\u89e3\u5bc6");
        jiemi.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jiemiActionPerformed(evt);
            }
        });

        fanhui.setFont(new java.awt.Font("宋体", 1, 14));
        fanhui.setText("\u8fd4  \u56de");
        fanhui.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                fanhuiActionPerformed(evt);
            }
        });

        quxiao.setFont(new java.awt.Font("宋体", 1, 14));
        quxiao.setText("\u53d6  \u6d88");
        quxiao.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                quxiaoActionPerformed(evt);
            }
        });

        mimawen.setForeground(new java.awt.Color(255, 51, 51));

        tishi.setText("\u8bf7\u8f93\u5165\u4efb\u610f\u957f\u5ea6\u7684\u5927\u5c0f\u5199\u5b57\u6bcd\u7ec4\u5408\uff01\uff01\uff01");

        jLabel4.setText("\u5173\u4e8e");
        jLabel4.addMouseListener(new java.awt.event.MouseAdapter() {
            public void mouseClicked(java.awt.event.MouseEvent evt) {
                jLabel4MouseClicked(evt);
            }
        });

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addGap(29, 29, 29)
                .addComponent(lujing, javax.swing.GroupLayout.PREFERRED_SIZE, 394, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addComponent(xuanze)
                .addContainerGap(102, Short.MAX_VALUE))
            .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
                .addContainerGap(89, Short.MAX_VALUE)
                .addComponent(jLabel2)
                .addGap(26, 26, 26)
                .addComponent(mima, javax.swing.GroupLayout.PREFERRED_SIZE, 246, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addComponent(mimawen, javax.swing.GroupLayout.PREFERRED_SIZE, 116, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addGap(23, 23, 23))
            .addGroup(layout.createSequentialGroup()
                .addGap(44, 44, 44)
                .addComponent(jiemi)
                .addGap(81, 81, 81)
                .addComponent(fanhui)
                .addGap(92, 92, 92)
                .addComponent(quxiao)
                .addContainerGap(126, Short.MAX_VALUE))
            .addGroup(layout.createSequentialGroup()
                .addGap(190, 190, 190)
                .addComponent(jLabel1, javax.swing.GroupLayout.PREFERRED_SIZE, 183, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addContainerGap(221, Short.MAX_VALUE))
            .addGroup(layout.createSequentialGroup()
                .addGap(140, 140, 140)
                .addComponent(tishi)
                .addContainerGap(238, Short.MAX_VALUE))
            .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
                .addContainerGap(511, Short.MAX_VALUE)
                .addComponent(jLabel4)
                .addGap(59, 59, 59))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addGap(23, 23, 23)
                .addComponent(jLabel1, javax.swing.GroupLayout.PREFERRED_SIZE, 42, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addGap(18, 18, 18)
                .addComponent(tishi)
                .addGap(36, 36, 36)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.CENTER)
                    .addComponent(jLabel2)
                    .addComponent(mima, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(mimawen))
                .addGap(35, 35, 35)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
                    .addComponent(lujing, javax.swing.GroupLayout.PREFERRED_SIZE, 19, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(xuanze))
                .addGap(27, 27, 27)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.CENTER)
                    .addComponent(jiemi)
                    .addComponent(quxiao)
                    .addComponent(fanhui))
                .addGap(26, 26, 26)
                .addComponent(jLabel4)
                .addGap(19, 19, 19))
        );

        layout.linkSize(javax.swing.SwingConstants.VERTICAL, new java.awt.Component[] {mima, mimawen});

        java.awt.Dimension screenSize = java.awt.Toolkit.getDefaultToolkit().getScreenSize();
        setBounds((screenSize.width-602)/2, (screenSize.height-359)/2, 602, 359);
    }// </editor-fold>//GEN-END:initComponents

private void xuanzeActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_xuanzeActionPerformed
// TODO add your handling code here:
    JFileChooser chooser = new JFileChooser();//创建JFileChooser对象

    int state = chooser.showOpenDialog(null);//新建并打开选择文件对话框

    file = chooser.getSelectedFile();//获取被选的文件

    File lujings = chooser.getCurrentDirectory();//反回当前目录

    String filename = chooser.getName(file);//获取被选的文件

    wzlj = lujings + "\\" + filename;//完整的路径名（当前路径+"\"+文件名）, "\\"为转义的"\"

    this.lujing.setText(wzlj);
}//GEN-LAST:event_xuanzeActionPerformed

private void fanhuiActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_fanhuiActionPerformed
// TODO add your handling code here:
    主界面 ac = new 主界面();//创建主页面对象

    ac.setVisible(true);//显示主页面

    this.setVisible(false);//隐藏本页面
}//GEN-LAST:event_fanhuiActionPerformed

private void quxiaoActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_quxiaoActionPerformed
// TODO add your handling code here:
    System.exit(this.HIDE_ON_CLOSE);//关闭软件
}//GEN-LAST:event_quxiaoActionPerformed

private void jiemiActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jiemiActionPerformed
// TODO add your handling code here:
    String mm = mima.getText();////mima是输入密码的文本框  获取输入密码的文本框的字符串

    int shuruchangdu = mm.length();//输入的密码长度

    if (shuruchangdu == 0) {//输入密码的文本框为空时

        JOptionPane.showMessageDialog(rootPane, "密码不能为空！", "输入错误！", this.HIDE_ON_CLOSE);
        mimawen.setText("不能为空！");
        tishi.setText("解密失败，再来一次！");
    } else {//输入密码的文本框不为空

        if (file == null) {//没选择文件

            JOptionPane.showMessageDialog(rootPane, "请选择路径！", "错误！", this.HIDE_ON_CLOSE);
        } else {//选择了文件

            lujingchuli lj = new lujingchuli();//创建路径处理的对象

            filein fi = new filein();//创建文件读取的对象

            String mubiaolujing = lj.jiemilujingchuli(wzlj);//处理路径得到密码文件的路径

            boolean fh = fi.cunchu(wzlj, mm, mubiaolujing); //进行判断密码是否正确，正确进行解密        

            if (fh == false) {//密码输入错误

                JOptionPane.showMessageDialog(rootPane, "输入密码错误！", "错误！", this.HIDE_ON_CLOSE);
                mima.setText("");
                mimawen.setText("密码错误！");
                tishi.setText("密码错误,再来一次！");
            } else {//密码输入正确

                mima.setText("");
                tishi.setText("解密成功,欢迎使用！");
                mimawen.setText("");
            }
        }
    }
}//GEN-LAST:event_jiemiActionPerformed

private void mimaKeyPressed(java.awt.event.KeyEvent evt) {//GEN-FIRST:event_mimaKeyPressed
// TODO add your handling code here:
    主界面 jb = new 主界面();//创建主页面对象

    int keycodemm = evt.getKeyCode();//获取当前按下键的键值
    //   System.out.println(keycodemima);

    if (keycodemm == 32 || (keycodemm > 40 && keycodemm < 64) || (keycodemm > 90 && keycodemm < 97) || keycodemm == 192) {  //限定只有字幕能键入

        JOptionPane.showMessageDialog(rootPane, "密码请输入大小写组合！", "输入错误！", this.HIDE_ON_CLOSE);
        mima.setText("");
        mimawen.setText("密码重新输入！");
    }
    if (keycodemm == 27) { //键值27为Esc健 点击退出上层菜单

        jb.setVisible(true);//显示主界面

        this.setVisible(false);//隐藏当前界面

    }
    if (keycodemm == 112) {//键值为112为F1时，打开关于界面

        关于 gg = new 关于();
        gg.setVisible(true);
    }
}//GEN-LAST:event_mimaKeyPressed

private void jLabel4MouseClicked(java.awt.event.MouseEvent evt) {//GEN-FIRST:event_jLabel4MouseClicked
// TODO add your handling code here:
    关于 gy = new 关于();
    gy.setVisible(true);
}//GEN-LAST:event_jLabel4MouseClicked

private void formKeyPressed(java.awt.event.KeyEvent evt) {//GEN-FIRST:event_formKeyPressed
// TODO add your handling code here:
    //键值为112为F1时，打开关于界面
    主界面 za = new 主界面(); //键值27为Esc健 点击退出上层菜单

    int keycodemimaf = evt.getKeyCode();//获取当前按下键的键值

    if (keycodemimaf == 27) {  //键值27为Esc健 点击退出上层菜单

        za.setVisible(true);//显示主界面

        this.setVisible(false);//隐藏当前界面

    }
    if (keycodemimaf == 112) {//按F1打开关于

        关于 gg = new 关于();
        gg.setVisible(true);
    }

}//GEN-LAST:event_formKeyPressed

    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
        java.awt.EventQueue.invokeLater(new Runnable() {

            public void run() {
                new 文件解密().setVisible(true);
            }
        });
    }

    // Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.swing.JButton fanhui;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JLabel jLabel2;
    private javax.swing.JLabel jLabel4;
    private javax.swing.JButton jiemi;
    private javax.swing.JLabel lujing;
    private javax.swing.JTextField mima;
    private javax.swing.JLabel mimawen;
    private javax.swing.JButton quxiao;
    private javax.swing.JLabel tishi;
    private javax.swing.JButton xuanze;
    // End of variables declaration//GEN-END:variables
}