github地址： https://github.com/ulisesbocchio/jasypt-spring-boot#update-11242019-version-300-release-includes

基于JDK8, 

pom.xml依赖

<dependency>
    <groupId>com.github.ulisesbocchio</groupId>
    <artifactId>jasypt-spring-boot-starter</artifactId>
    <version>3.0.4</version>
</dependency>

<dependency>
    <groupId>com.github.ulisesbocchio</groupId>
    <artifactId>jasypt-spring-boot</artifactId>
    <version>${jasypt}</version>
</dependency>

工具类：

核心注意：  PBEWITHHMACSHA512ANDAES_256    3.0.0上默认使用此加密算法， ， 

            使用旧的算法会解密失败。

旧的解密失败解决方法

jasypt:
  encryptor:
    algorithm: PBEWithMD5AndDES
    iv-generator-classname: org.jasypt.iv.NoIvGenerator

新的加密算法：

package com.glo.task.utils;

import org.jasypt.encryption.StringEncryptor;
import org.jasypt.encryption.pbe.PooledPBEStringEncryptor;
import org.jasypt.encryption.pbe.StandardPBEByteEncryptor;
import org.jasypt.encryption.pbe.StandardPBEStringEncryptor;
import org.jasypt.encryption.pbe.config.SimpleStringPBEConfig;
import org.jasypt.util.text.AES256TextEncryptor;
import org.jasypt.util.text.BasicTextEncryptor;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import java.io.UnsupportedEncodingException;


public class JasyptUtil {

  public static final StringEncryptor encryptor = stringEncryptor();


  public static void main(String[] args) throws UnsupportedEncodingException {
    String account = "root";
    String password = "123456";
    String url= "jdbc:mysql://xxx:xxx/xxx?characterEncoding=utf8&connectTimeout=5000&socketTimeout=5000&autoReconnect=true&useUnicode=true&useSSL=false";
    //秘钥
    String my = "xxxx";

    //密码进行加密
    System.out.println("加密后账号：" + encrypt(account, my));
    System.out.println("加密后密码：" + encrypt(password, my));
    System.out.println("加密后url：" + encrypt(url, my));

    //解密

    System.out.println("解密后账号：" + decrypt("i6+yH+laK8qvOnJS47vL3UAvB11wrRgyGTBKZAHY7UxsG0lKiqVaK/R7M5EhFsU9", my));
    System.out.println("解密后密码：" + decrypt("uHPu/flryc5x9bkTsExTqAii7u3pVRf9VWxgOQNyCBSB6mqP5vcOOWo9ukYR4RXJ", my));
    System.out.println("解密后url：" + decrypt("lI8FhCUR1kZ+PhnSKu5qrds2v7sHRrfgk8RU1+LGypPqexWy85iusHCtnpU/iBHg7WY+4pVfstxv5+L9T8uqmjEJsSgFfeQVWA0xnu+cDdrzNywdPdpchYsj6BpVxZ5N2JfHr0i9wyh/xSx9MivX/NsqhV5rSXpmDuVauJYCcfTWNLHVBcmF2dNSy3IoLoH5R5P5fUhJNBDJAmioyQ7W2LxMzP+4m8YRgI0Znf8fvuc=", my));
  }


   public static String encrypt(String source, String my) throws UnsupportedEncodingException {
     return encryptor.encrypt(source);

   }

  public static String decrypt(String source, String my) throws UnsupportedEncodingException {
    return encryptor.decrypt(source);
  }


  public static StringEncryptor stringEncryptor() {
    PooledPBEStringEncryptor encryptor = new PooledPBEStringEncryptor();
    SimpleStringPBEConfig config = new SimpleStringPBEConfig();
    config.setPassword("password");
    config.setAlgorithm("PBEWITHHMACSHA512ANDAES_256");
    config.setKeyObtentionIterations("1000");
    config.setPoolSize("1");
    config.setProviderName("SunJCE");
    config.setSaltGeneratorClassName("org.jasypt.salt.RandomSaltGenerator");
    config.setIvGeneratorClassName("org.jasypt.iv.RandomIvGenerator");
    config.setStringOutputType("base64");
    encryptor.setConfig(config);
    return encryptor;
  }
}

截图：

数据库连接使用， 将ENC（上面生成的密钥）

如果旧的加密出现解密失败， 

或者  出现如下图的问题, 使用 springtest调试会出现此问题， application启动则不会出现

Failed to bind properties under 'server.ssl.key-password' to java.lang.String:

解决方法： 使用旧的加密算法， 加密时也需要用此加密算法加密生成加密串

jasypt:
  encryptor:
    algorithm: PBEWithMD5AndDES
    iv-generator-classname: org.jasypt.iv.NoIvGenerator

JCE 安装：

https://www.oracle.com/java/technologies/javase-jce8-downloads.html