java编写Base64密码器

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Base64加密算法，应用广泛，尤其是在电子邮件传输上，有很大的用途

用JAVA编写的程序代码如下

import java.awt.BorderLayout;import java.awt.EventQueue;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.io.IOException;import javax.swing.JFrame;import javax.swing.JPanel;import javax.swing.border.EmptyBorder;import javax.swing.JTextArea;import javax.swing.JButton;public class Base64Frame extends JFrame {    private JPanel contentPane;    private JButton btnNewButton;    private JTextArea textArea;    private JButton btnNewButton_1;    private JTextArea textArea_1;    /**     * Launch the application.     */    public static void main(String[] args) {        EventQueue.invokeLater(new Runnable() {            public void run() {                try {                    Base64Frame frame = new Base64Frame();                    frame.setVisible(true);                } catch (Exception e) {                    e.printStackTrace();                }            }        });    }    /**     * Create the frame.     */    public Base64Frame() {        setTitle("Base64密码器");        setResizable(false);        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);        setBounds(100, 100, 505, 405);        contentPane = new JPanel();        contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));        setContentPane(contentPane);        contentPane.setLayout(null);                textArea = new JTextArea();        textArea.setBounds(14, 13, 471, 136);        contentPane.add(textArea);                textArea_1 = new JTextArea();        textArea_1.setBounds(14, 206, 471, 151);        contentPane.add(textArea_1);                btnNewButton = new JButton("编码");        btnNewButton.setBounds(14, 166, 113, 27);        contentPane.add(btnNewButton);                btnNewButton_1 = new JButton("解码");        btnNewButton_1.setBounds(372, 162, 113, 27);        contentPane.add(btnNewButton_1);        btnNewButton.addActionListener(new ActionListener() {                        @Override            public void actionPerformed(ActionEvent e) {                textArea_1.setText(Base64Util.encryptBase64(textArea.getText().getBytes()));                            }        });        btnNewButton_1.addActionListener(new ActionListener() {                        @Override            public void actionPerformed(ActionEvent e) {                try {                    textArea_1.setText(Base64Util.decryptBase64(textArea.getText()));                } catch (IOException e1) {                    // TODO Auto-generated catch block                    e1.printStackTrace();                }                            }        });    }}

import java.io.IOException;import Decoder.BASE64Decoder;import Decoder.BASE64Encoder;public class Base64Util {        public static String encryptBase64(byte[] data){        return new BASE64Encoder().encode(data);//编码算法    }        public static String decryptBase64(String data) throws IOException{        byte[] resultBytes = new BASE64Decoder().decodeBuffer(data);//data代表密文        return new String(resultBytes);//返回字节数组的字符串形式    }}

其中的Base64Util工具类由极客学院提供；

其中需要sun.misc.BASE64Decode.jar JDK开发包的支持；可以去JDK的官网下下载，也可以点击此链接下载

http://yunpan.cn/c3XmzH5Tmcg6b 访问密码 f450

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