2025年spring数据库密码加密解密（spring对数据库密码解密）

编程日记 • 2025-01-23 22:17 • 阅读 43
public class DESUtils  
{  
    private static Key key;  
    private static String KEY_STR="mykey";  
      
    static{  
        try  
        {  
            KeyGenerator generator = KeyGenerator.getInstance("DES");  
            SecureRandom secureRandom=SecureRandom.getInstance("SHA1PRNG");  
            secureRandom.setSeed(KEY_STR.getBytes());  
            generator.init(secureRandom);  
            key = generator.generateKey();  
            generator=null;  
        }  
        catch (Exception e)  
        {  
            throw new RuntimeException(e);  
        }  
    }  
      
    /** 
     * 对字符串进行加密，返回BASE64的加密字符串 
     * <功能详细描述> 
     * @param str 
     * @return 
     * @see [类、类#方法、类#成员] 
     */  
    public static String getEncryptString(String str){  
        BASE64Encoder base64Encoder = new BASE64Encoder();  
        System.out.println(key);  
        try  
        {  
            byte[] strBytes = str.getBytes("UTF-8");  
            Cipher cipher = Cipher.getInstance("DES");  
            cipher.init(Cipher.ENCRYPT_MODE, key);  
            byte[] encryptStrBytes = cipher.doFinal(strBytes);  
            return base64Encoder.encode(encryptStrBytes);  
        }  
        catch (Exception e)  
        {  
            throw new RuntimeException(e);  
        }  
          
    }  
      
    /** 
     * 对BASE64加密字符串进行解密 
     * <功能详细描述> 
     * @param str 
     * @return 
     * @see [类、类#方法、类#成员] 
     */  
    public static String getDecryptString(String str){  
        BASE64Decoder base64Decoder = new BASE64Decoder();  
        try  
        {  
            byte[] strBytes = base64Decoder.decodeBuffer(str);  
            Cipher cipher = Cipher.getInstance("DES");  
            cipher.init(Cipher.DECRYPT_MODE, key);  
            byte[] encryptStrBytes = cipher.doFinal(strBytes);  
            return new String(encryptStrBytes,"UTF-8");  
        }  
        catch (Exception e)  
        {  
            throw new RuntimeException(e);  
        }  
          
    }  
      
      
    public static void main(String[] args)  
    {  
        String name ="root";  
        String password="1234";  
        String encryname = getEncryptString(name);  
        String encrypassword = getEncryptString(password);  
        System.out.println(encryname);  
        System.out.println(encrypassword);  
          
        System.out.println(getDecryptString(encryname));  
        System.out.println(getDecryptString(encrypassword));  
    }  
}
2025年spring数据库密码加密解密（spring对数据库密码解密）

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