Java加密解密 -Jasypt

1. download url
    http://www.jasypt.org/download.html
   
2. 依賴 jar
   jasypt-1.9.0.jar
   
3. 加密

        // 預設加密/解密演算法是 PBEWithMD5AndDES        StandardPBEStringEncryptor encryptor = new StandardPBEStringEncryptor();        encryptor.setPassword(KEY);        return encryptor.encrypt(text);

# 注意：這裡每次加密得到的密文都是不一樣的；

4. 解密

        StandardPBEStringEncryptor encryptor = new StandardPBEStringEncryptor();        encryptor.setPassword(KEY);        return encryptor.decrypt(ciphertext);

        
5. 範例程式碼

package org.demo.encrypt;import org.jasypt.encryption.pbe.StandardPBEStringEncryptor;public class EncryptUtils {    // 密鑰private static final String KEY = "1234567a?";public static void main(String[] args) {String ciphertext1 = encrypt("abcdefg"); // Wu11fsC0gpgSET5aU8GXUA==String ciphertext2 = encrypt("abcdefg"); // ESXlHsVk2YM7mGcHy2ccGg==System.out.println(ciphertext1);System.out.println(ciphertext2);String text1 = decrypt(ciphertext1);String text2 = decrypt(ciphertext2);System.out.println(text1);               // abcdefgSystem.out.println(text2);               // abcdefg}/** * 加密 * @param text 明文 * @return     密文 */public static String encrypt(String text) {StandardPBEStringEncryptor encryptor = new StandardPBEStringEncryptor();encryptor.setPassword(KEY);return encryptor.encrypt(text);}/** * 解密 * @param ciphertext 密文 * @return           明文 */public static String decrypt(String ciphertext) {StandardPBEStringEncryptor encryptor = new StandardPBEStringEncryptor();encryptor.setPassword(KEY);return encryptor.decrypt(ciphertext);}}