jasypt是一个用来加密配置文件中的信息的工具包。使用如下所示

一、引入依赖(版本好根据自己项目自行修改)

<dependency>
            <groupId>com.github.ulisesbocchio</groupId>
            <artifactId>jasypt-spring-boot-starter</artifactId>
            <version>3.0.3</version>
        </dependency>

二、配置加解密的密钥

#jasypt加密的密匙
jasypt:
  encryptor:
    password: 123qweasefz

为了演示我是将密钥写进了application.yml配置文件，但是在生产环境中，为了防止密钥泄露，反解出密码，一般是在项目部署的时候使用命令传入密钥值。

java -jar xxx.jar  -Djasypt.encryptor.password=123qweasefz

三、根据密钥生成加密后的密钥

import org.jasypt.encryption.StringEncryptor;
import org.junit.jupiter.api.Test;
import org.springframework.boot.test.context.SpringBootTest;
import javax.annotation.Resource;

@SpringBootTest
public class DatabaseTest {

    @Resource
    private StringEncryptor encryptor;

    @Test
    public void getPass(){
        String url = encryptor.encrypt("jdbc:mysql://117.66.84.31:3306/sharding-jdbc-db?useUnicode=true&useSSL=false&serverTimezone=Asia/Shanghai");
        String name = encryptor.encrypt("root");
        String password = encryptor.encrypt("123456");
        System.out.println("url:"+url);
        System.out.println("name:"+name);
        System.out.println("password:"+password);
    }

}

四、配置文件application.yml中将加密后的字符串替换原明文

server:
  port: 8080
spring:
  # 数据库相关配置
  datasource:
    driver-class-name: com.mysql.cj.jdbc.Driver
    # 这里加上后缀用来防止mysql乱码,serverTimezone=GMT%2b8设置时区
    url: ENC(w7pPKpjHdHIchfu35aE9pw2efpiLAWimekC9wa6ZuEMzgIfzVv9ynymu+gA3ApFJbt7racIb60rbU0LCrDDBLgxFfcnOJVKn/n6pHNmcqBEsoNe5KMSBw2HtWqeWeU02anjJCBu/se1gDOMs0TTY3x7cTF1fxhFRg/ft4f/rsu65PwnBRFK4dVnQ8F2lsIDE)
    username: ENC(7Ioe3toofVFqB1x0ML2sIrDjnieGHk743SdgrnXGSX6CAEzdFOkqBtFGeVUAnnLQ)
    password: ENC(zmibGREZXVX4hl8mVytEmqQgXVInfxtEr6vg6oZV2Xlv6J9Y2GEimuDtmFCsNXbt)
# jasypt加密的密匙
jasypt:
  encryptor:
    password: Y6M9fAJQdU7jNp5MW

注意：上面的ENC()是固定的写法