mybatis-plus 多数据源配置

<dependency>
    <groupId>mysql</groupId>
    <artifactId>mysql-connector-java</artifactId>
    <version>5.1.37</version>
    <scope>runtime</scope>
</dependency>

<dependency>
    <groupId>org.postgresql</groupId>
    <artifactId>postgresql</artifactId>
    <scope>runtime</scope>
</dependency>

<dependency>
    <groupId>com.baomidou</groupId>
    <artifactId>dynamic-datasource-spring-boot-starter</artifactId>
    <version>3.0.0</version>
</dependency>

<dependency>
    <groupId>com.baomidou</groupId>
    <artifactId>mybatis-plus-boot-starter</artifactId>
    <version>3.3.2</version>
</dependency>

spring:
  datasource:
    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 #设置严格模式,默认false不启动. 启动后在未匹配到指定数据源时候回抛出异常,不启动会使用默认数据源.
      datasource:
        master:
          url: jdbc:mysql://127.0.0.1:3306/hikari-cloud?useUnicode=true&characterEncoding=UTF-8&useLegacyDatetimeCode=false&serverTimezone=GMT%2B8
          username: xxxxx
          password: xxxxx
          driver-class-name: com.mysql.jdbc.Driver
          hikari:
            max-lifetime: 60000
        slave_1:
          url: jdbc:mysql://127.0.0.1:3306/ms-test?useUnicode=true&characterEncoding=UTF-8&useLegacyDatetimeCode=false&serverTimezone=GMT%2B8
          username: xxxxx
          password: xxxxx
          driver-class-name: com.mysql.jdbc.Driver
          hikari:
            max-lifetime: 60000

mybatis-plus:
  mapper-locations: classpath:mapper/*.xml
  type-aliases-package:  com.hikari.cloud.data.entity

这样就配置完了，只需要在调用的mapper添加@DS(“数据库名”)进行指定数据库的查询，主数据库不需要配置

@Repository
@Mapper
@DS("slave_1")
public interface db2Mapper extends BaseMapper<db2> {
    
}