1背景：

springboot项目中要求不能采用明文密码，故采用配置文件加密.

目前采用有密码的有redis nacos rabbitmq mysql 这些配置文件

2技术

2.1 redis nacos rabbitmq 配置文件加密

采用加密方式是jasypt 加密

2.1.1 加密步骤

2.1.2 引入maven依赖

<!-- 加密相关start --><dependency><groupId>com.github.ulisesbocchio</groupId><artifactId>jasypt-spring-boot-starter</artifactId><version>3.0.3</version></dependency><!-- 加密相关end -->

2.1.3 加注解@EnableEncryptableProperties

在启动类中加入@EnableEncryptableProperties

2.1.4 在配置文件中配置盐 加密方案

jasypt:encryptor:# 加密算法algorithm: PBEWITHHMACSHA512ANDAES_256# 加密使用的盐password: jaspyt_password

2.1.5 编写测试类加密/解密密码

/*** @author * @description: 加密解密测试*/
@SpringBootTest(classes = MycodeApplication.class)
@RunWith(SpringRunner.class)
@EnableEncryptableProperties
public class JasyptTest {@Autowiredprivate StringEncryptor stringEncryptor;/*** 加密解密测试*/@Testpublic void jasyptTest() {// 加密System.out.println(stringEncryptor.encrypt("nacos"));    // JSrINYe4IBotHndGjX1hnmY3mtPNUJlXjP12cx1+pHqUz2FNXGPu3Frnajh3QCXg// 解密System.out.println(stringEncryptor.decrypt("0q/CVaDpjJ/kG7Je5Z2GjL99ahQvOxqjLXDHsDShkQIZlmnI7UWup7Sltd2N4cV7"));// System.out.println(stringEncryptor.decrypt("rP4MtUODPjDz66wFfm20DR0y5YvWCI8bX1cKcoyPmEzPBZ7ylVJuyUAZL1dz7gfW"));    // root}public static void main(String[] args) throws Exception{/*  String[] arr = ConfigTools.genKeyPair(512);System.out.println("privateKey:"+arr[0]);System.out.println("publicKey:"+arr[1]);String publicKey ="MFwwDQYJKoZIhvcNAQEBBQADSwAwSAJBAJByhUUvx4LNlBZFWDhyhaTRvy2J0W9QJ2XXccOJaCBPhUb9Af7UnyaYUra0pRvwlX1VqMCtM4n3du5IpXedAwcCAwEAAQ==";String encryptStr = "XgBw9PoKkns4FP1oYIvLc7U+tjawEl8VWvSmcLYI5ekxUm0CoDa2saIB8ndQylo2jNXfqbYm6jz8Vzq7dOOpXg==";System.out.println("encryptStr:"+encryptStr);System.out.println("decryptStr:"+ConfigTools.decrypt(publicKey,encryptStr));*/String privateKey ="MIIBVQIBADANBgkqhkiG9w0BAQEFAASCAT8wggE7AgEAAkEAkHKFRS/Hgs2UFkVYOHKFpNG/LYnRb1AnZddxw4loIE+FRv0B/tSfJphStrSlG/CVfVWowK0zifd27kild50DBwIDAQABAkAn8kPA2nHGTqwBbLP1CFbFOeww38g3jGcY1vfzJ3DQXj/tf2fiBtiwzXQkB9c2+Z24XiXBo/fo3c1tTOxEtdHBAiEA9S+svZgwa1ZM2QpKmrkcXC5wdN/2FaptTWGOK0yjCp8CIQCW0W7QYwsbPcLKDTLLZ9iCDT6ckx3sl/ynnPeWc34WmQIgJ8x7T7M6eNHjW3+uKHtPvS7UlkQcX9vwLhVdzG1+MaUCIQCROnM+72DOhpaAAl2bSRBPi3lzRKdYILMGpDw2AFi2YQIhAO5eAxXQwe65AM2lVg+0C38rwMBvmyqU0ljnOLkRkL1t";String encryptStr = ConfigTools.encrypt(privateKey,"Safm@987");System.out.println(encryptStr);String dbpassword = ConfigTools.decrypt("MFwwDQYJKoZIhvcNAQEBBQADSwAwSAJBAJByhUUvx4LNlBZFWDhyhaTRvy2J0W9QJ2XXccOJaCBPhUb9Af7UnyaYUra0pRvwlX1VqMCtM4n3du5IpXedAwcCAwEAAQ==", "XgBw9PoKkns4FP1oYIvLc7U+tjawEl8VWvSmcLYI5ekxUm0CoDa2saIB8ndQylo2jNXfqbYm6jz8Vzq7dOOpXg==");System.out.println(dbpassword);//System.out.println();}
}

2.1.6 在用加密之后的秘钥替换要来的密码

注意要用ENC（）包裹起来 注意要用ENC（）包裹起来
注意要用ENC（）包裹起来

server:port: 9105
jasypt:encryptor:# 加密算法algorithm: PBEWITHHMACSHA512ANDAES_256# 加密使用的盐password: jaspyt_password
spring:mvc:pathmatch:matching-strategy: ant_path_matchermain:allow-circular-references: trueapplication:name: dp-ccb### cloud 相关配置cloud:nacos:discovery:server-addr: 172.0.0.1:8848namespace: publicusername: nacos# 使用ENC()包裹，标识为加密之后的，否则无法解密，会报错password: ENC(rP4MtUODPjDz66wFfm20DR0y5YvWCI8bX1cKcoyPmEzPBZ7ylVJuyUAZL1dz7gfW)

2.2 mysql 加密

驱动为DruidDataSource的方式上面的加密方式不能解析密码
加密方式为import com.alibaba.druid.filter.config.ConfigTools.decrypt

2.2.1 技术实现原理

在创建链接的时候注入密码解密器。

2.2.2 代码实现

自己实现DruidPasswordCallback 重写setProperties方法

package com.example.mycode.utils;import com.alibaba.druid.filter.config.ConfigTools;
import com.alibaba.druid.util.DruidPasswordCallback;
import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;import java.util.Properties;/*** @author sz* @version 1.0* @date 2023-02-13 21:07*/public class MyDataSourceCallback extends DruidPasswordCallback {private static final Logger LOGGER = LoggerFactory.getLogger(MyDataSourceCallback.class);@Overridepublic void setProperties(Properties properties) {super.setProperties(properties);String password = (String) properties.get("password");String publickey = (String) properties.get("publickey");if (StringUtils.isNotBlank(password)) {try {String dbpassword = ConfigTools.decrypt(publickey, password);setPassword(dbpassword.toCharArray());} catch (Exception e) {LOGGER.error("Druid ConfigTools.decrypt", e);}}}
}

2.2.3 用import com.alibaba.druid.filter.config.ConfigTools.decrypt 自带的加密，解密方式 加密密码

public static void main(String[] args) throws Exception{String privateKey ="MIIBVQIBADANBgkqhkiG9w0BAQEFAASCAT8wggE7AgEAAkEAkHKFRS/Hgs2UFkVYOHKFpNG/LYnRb1AnZddxw4loIE+FRv0B/tSfJphStrSlG/CVfVWowK0zifd27kild50DBwIDAQABAkAn8kPA2nHGTqwBbLP1CFbFOeww38g3jGcY1vfzJ3DQXj/tf2fiBtiwzXQkB9c2+Z24XiXBo/fo3c1tTOxEtdHBAiEA9S+svZgwa1ZM2QpKmrkcXC5wdN/2FaptTWGOK0yjCp8CIQCW0W7QYwsbPcLKDTLLZ9iCDT6ckx3sl/ynnPeWc34WmQIgJ8x7T7M6eNHjW3+uKHtPvS7UlkQcX9vwLhVdzG1+MaUCIQCROnM+72DOhpaAAl2bSRBPi3lzRKdYILMGpDw2AFi2YQIhAO5eAxXQwe65AM2lVg+0C38rwMBvmyqU0ljnOLkRkL1t";String encryptStr = ConfigTools.encrypt(privateKey,"123456");System.out.println(encryptStr);String dbpassword = ConfigTools.decrypt("MFwwDQYJKoZIhvcNAQEBBQADSwAwSAJBAJByhUUvx4LNlBZFWDhyhaTRvy2J0W9QJ2XXccOJaCBPhUb9Af7UnyaYUra0pRvwlX1VqMCtM4n3du5IpXedAwcCAwEAAQ==", "XgBw9PoKkns4FP1oYIvLc7U+tjawEl8VWvSmcLYI5ekxUm0CoDa2saIB8ndQylo2jNXfqbYm6jz8Vzq7dOOpXg==");System.out.println(dbpassword);//System.out.println();}

2.2.4 在配置文件中配置信息

核心关键是配置connectionProperties 和passwordCallbackClassName
注意要connectionProperties 配置公钥和加密的密码
passwordCallbackClassName 要配置自定义的解密限定名

dataSources:ds:dataSourceClassName: com.alibaba.druid.pool.DruidDataSourceurl: jdbc:mysql://172.27.15.74:3306/alter_table_test?serverTimezone=GMT%2B8&useUnicode=true&characterEncoding=UTF-8&useSSL=false&autoReconnect=true&failOverReadOnly=false&allowMultiQueries=trueusername: rootpassword: XgBw9PoKkns4FP1oYIvLc7U+tjawEl8VWvSmcLYI5ekxUm0CoDa2saIB8ndQylo2jNXfqbYm6jz8Vzq7dOOpXg==passwordCallbackClassName: com.example.mycode.utils.MyDataSourceCallbackconnectionProperties: config:decrypt=true;publickey=MFwwDQYJKoZIhvcNAQEBBQADSwAwSAJBAJByhUUvx4LNlBZFWDhyhaTRvy2J0W9QJ2XXccOJaCBPhUb9Af7UnyaYUra0pRvwlX1VqMCtM4n3du5IpXedAwcCAwEAAQ==;password=XgBw9PoKkns4FP1oYIvLc7U+tjawEl8VWvSmcLYI5ekxUm0CoDa2saIB8ndQylo2jNXfqbYm6jz8Vzq7dOOpXg==initial-size: 20min-idle: 5max-active: 50max-wait: 60000time-between-eviction-runs-millis: 60000min-evictable-idle-time-millis: 300000validation-query-timeout: 10000test-while-idle: truetest-on-borrow: falsetest-on-return: falsepool-prepared-statements: falsemax-pool-prepared-statement-per-connection-size: 20