springboot 整合druid数据库密码加密功能的实现代码

<dependency>
	<groupId>com.alibaba</groupId>
	<artifactId>druid-spring-boot-starter</artifactId>
	<version>1.1.21</version>
</dependency>

public static void main(String[] args) throws Exception {
  String password = "Aq6vD!puWbk";
  System.out.println("明文密码: " + password);
  String[] keyPair = ConfigTools.genKeyPair(512);
  //私钥
  String privateKey = keyPair[0];
  //公钥
  String publicKey = keyPair[1];
  //用私钥加密后的密文
  password = ConfigTools.encrypt(privateKey, password);
 
  System.out.println("privateKey:" + privateKey);
  System.out.println("publicKey:" + publicKey);
 
  System.out.println("password:" + password);
 
  String decryptPassword = ConfigTools.decrypt(publicKey, password);
  System.out.println("解密后:" + decryptPassword);
}

datasource:
 type: com.alibaba.druid.pool.DruidDataSource
 # 特别注意：java 9以后需要将com.mysql.jdbc.Driver 改为 com.mysql.cj.jdbc.Driver即可
 # 否则报错：Loading class `com.mysql.jdbc.Driver'. This is deprecated.
 driver-class-name: com.mysql.cj.jdbc.Driver
 druid:
  #基本属性
  url: jdbc:mysql://1******:3306/**?useUnicode=true&characterEncoding=UTF-8&useSSL=false&serverTimezone=Asia/Shanghai
  username: admin
  password: Qh0VAjlS/LVbsAFSAFsdf24jJ7rggMNsnvJex3x1mkUKxPd2bofuAR6DtjCV20M4n2DWc5SLZmkzgjvG3Elx1g==
  #此处需要注意，其他版本有connection-properties和connect-properties，注意区分
  connectionProperties: config.decrypt=true;config.decrypt.key=${publicKey};
  filter:
  config:
   enabled: true # 启动ConfigFilter
  #配置初始化大小/最小/最大[仅用于测试，生产环境需要修改]
  initial-size: 5
  min-idle: 5
  max-active: 20
  #获取连接等待超时时间
  max-wait: 60000
  #间隔多久进行一次检测，检测需要关闭的空闲连接
  time-between-eviction-runs-millis: 10000
  #一个连接在池中最小生存的时间
  min-evictable-idle-time-millis: 300000
  #指定获取连接时连接校验的sql查询语句
  validation-query: SELECT 'x'
  #验证连接的有效性
  test-while-idle: true
  #获取连接时候验证，会影响性能（不建议true）
  test-on-borrow: false
  #打开PSCache，并指定每个连接上PSCache的大小。oracle设为true，mysql设为false。分库分表较多推荐设置为false
  pool-prepared-statements: false
  max-pool-prepared-statement-per-connection-size: 20
publicKey: MFwwDQYJKoZIhafwqfDSAwAwSAJBAIG3LgXwadfgferwbWdkGNDzgrjfSWfrBjJ2X+m9lajH7yGPeE/vLs4hdtr1RCITBKJeevZpwZ0DBLctVS6Dc0CAwEAAQ==