Mybatis-plus多数据源 + 数据库连接明文加密

核心依赖

        <!--mybatis-plus 核心组件-->
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-boot-starter</artifactId>
            <version>3.4.3</version>
        </dependency>
        <!--mybatis-plus多数据源开发-->
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>dynamic-datasource-spring-boot-starter</artifactId>
            <version>3.4.1</version>
        </dependency>
        <!--mysql驱动-->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.49</version>
        </dependency>
</project>

数据库连接明文加密

1.生成秘钥
2.生成密文
3.密文填写配置文件

 @Test
    public void testJiaMi(){
	//生成秘钥
        String randomKey = AES.generateRandomKey();
        String data2 = "jdbc:mysql://localhost:3306/study03?useSSL=false&serverTimezone=UTC";
        // 随机密钥加密
        String result = AES.encrypt(data2, randomKey);
        System.out.println(randomKey+"||"+result);
    }

秘钥在启动参数（Program arguments） --mpw.key=4b57e89bac82a797

类似如下填写

  datasource:
   driver-class-name: com.mysql.jdbc.Driver
   url:mpw:dNjT0C8R2vh972whSGklO69WmcQZH494voJk38q/JmdnswjmjMJpyyQvGii+YmLe
   username: mpw:3IAJ/lzGvlG5+CSXhe2S2g==
   password: mpw:3IAJ/lzGvlG5+CSXhe2S2g==

多数据源配置

server:
  port: 8082
spring:
  profiles:
    active: prod
  datasource: #使用了mybatis-plus的加密，密匙传递在启动参数
    #mybatis-plus多数据源框架
    dynamic:
      primary: master #设置默认的数据源或者数据源组,默认值即为master
      strict: false #严格匹配数据源,默认false. true未匹配到指定数据源时抛异常,false使用默认数据源
      datasource:
        master:
          driver-class-name: com.mysql.jdbc.Driver
          url: mpw:dNjT0C8R2vh972whSGklO69WmcQZH494voJk38q/Jmfr7P7L5i6A9aReXemBPXCB6125DwN+5EYRTy/oNOA4AXe2/1XDMnOuQPXNVCJ2C4k=
          username: mpw:3IAJ/lzGvlG5+CSXhe2S2g==
          password: mpw:3IAJ/lzGvlG5+CSXhe2S2g==
        slave_1:
          url: mpw:dNjT0C8R2vh972whSGklOyqz7hR9ntRUU58MOiSftOelxMKOCB2rquB+qAZ5KF8IJAV7bVvXjNKSt6qpsnKaV6nz6jV0A27NhwchZZroWgQ=
          username: mpw:3IAJ/lzGvlG5+CSXhe2S2g==
          password: mpw:3IAJ/lzGvlG5+CSXhe2S2g==
          driver-class-name: com.mysql.jdbc.Driver
        slave_2:
          url: mpw:dNjT0C8R2vh972whSGklO69WmcQZH494voJk38q/JmfDVhJi8IkUYln5KNoyZqSOKZXC0FiZKBGg46AYzRk1lRv6ZdJdSRi/hSoxPoph5VI=
          username: mpw:3IAJ/lzGvlG5+CSXhe2S2g==
          password: mpw:3IAJ/lzGvlG5+CSXhe2S2g==
          driver-class-name: com.mysql.jdbc.Driver
mybatis-plus:
  type-aliases-package: com.example.entity  #实体类别名
  mapper-locations: classpath:mapper/*.xml   # 扫描的xml
  configuration:
    map-underscore-to-camel-case: true  #开启驼峰命名
    cache-enabled: false
  check-config-location: true # 检查xml是否存在
  type-enums-package: com.example.enumpackage  #通用枚举开启

使用切换数据源

package com.example.controller;

import com.baomidou.dynamic.datasource.annotation.DS;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.List;
import java.util.Map;

/**
 * @description: mybatisPlus多数据源
 * @author: GuoTong
 * @createTime: 2021-08-21 22:53
 * @since JDK 1.8 OR 11
 **/
@RestController
public class MoreDataSource {

    @Autowired
    private JdbcTemplate jdbcTemplate;

    @RequestMapping("/datasource01")
    @DS("master")
    public Object datasource01() {
        List<Map<String, Object>> list = jdbcTemplate.queryForList("select * from user");
        return list;
    }

    @RequestMapping("/datasource02")
    @DS("slave_1")
    public Object datasource02() {
        List<Map<String, Object>> list = jdbcTemplate.queryForList("select * from user");
        return list;
    }

    @RequestMapping("/datasource03")
    @DS("slave_2")
    public Object datasource03() {
        List<Map<String, Object>> list = jdbcTemplate.queryForList("select * from user");
        return list;
    }
}