SringBoot整合Druid+Mybatisplus实现多数据源

<dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-boot-starter</artifactId>
            <version>3.4.2</version>
        </dependency>
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>dynamic-datasource-spring-boot-starter</artifactId>
            <version>2.5.6</version>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <scope>runtime</scope>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid-spring-boot-starter</artifactId>
            <version>1.2.4</version>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

server:
  port: 8080
spring:
  datasource:
    dynamic:
      primary: db1 #配置默认数据库
      datasource:
        db1: # 数据源1配置
          url: jdbc:mysql://localhost:3306/yogurt?characterEncoding=utf8&useUnicode=true&useSSL=false&serverTimezone=GMT%2B8
          username: root
          password: creation
          driver-class-name: com.mysql.cj.jdbc.Driver
        db2: # 数据源2配置
          url: jdbc:mysql://localhost:3306/db01?characterEncoding=utf8&useUnicode=true&useSSL=false&serverTimezone=GMT%2B8
          username: root
          password: creation
          driver-class-name: com.mysql.cj.jdbc.Driver
      durid:
        initial-size: 1
        max-active: 20
        min-idle: 1
        max-wait: 60000
  autoconfigure:
    exclude:  com.alibaba.druid.spring.boot.autoconfigure.DruidDataSourceAutoConfigure # # 去除druid配置

mybatis-plus:
  configuration:
    log-impl: org.apache.ibatis.logging.stdout.StdOutImpl #

@SpringBootApplication(exclude = DruidDataSourceAutoConfigure.class)
public class Application {
  public static void main(String[] args) {
    SpringApplication.run(Application.class, args);
  }
}

@Repository
@DS("db2")
public interface User2Mapper extends BaseMapper<User2> {

}

@Select("SELECT * FROM user")
@DS("db2")
List<User> selectAll();