引入druid依赖

    <dependency>
        <groupId>com.alibaba</groupId>
        <artifactId>druid</artifactId>
        <version>1.0.15</version>
    </dependency>

工具类

package com.xzsoft.frame.util;

import com.alibaba.druid.filter.config.ConfigTools;
/**
 * @author sc
 * @version V1.0
 * @createTime 2020/7/1 9:35
 * @description druid加解密
 */

public class Demo {

    public static void main(String[] args) throws Exception {
        testEncrypt();
        testDecrypt();
    }


    public static void testDecrypt() throws Exception {
                //解密 1234
                String word="Qc+lVOUSHDmrG3CWleTKQ05KnUce/7QFrsowits2sLUzO2idxdn4r3UXWaYmRNxSlX4H0gMMN89hLCt6WGyejg==";
                 String decryptword = ConfigTools.decrypt(word);
                 System.out.println(decryptword);
    }


    public static void testEncrypt() throws Exception {
                //加密
                 String password ="1234";
                String encryptword = ConfigTools.encrypt(password);
                 System.out.println(encryptword);
    }

}