springboot有多个模块（子工程），主工程调用需要模块的3处扫描手动加载

主工程调用需要模块的3处扫描手动加载

第一处，@ComponentScan：该注解默认会扫描该类所在的包下所有的配置类，相当于之前的 <context:component-scan>。

第二处，@MapperScan：指定要变成实现类的接口所在的包，然后包下面的所有接口在编译之后都会生成相应的实现类。

第三处，mapper-locations：指定sql所在包。

主工程启动类BackOfficeApplication.java

"jp.co.pia.ticket.sports.hawks.seasonseat.backoffice"：主工程组件扫描地址。

"jp.co.pia.ticket.sports.hawks.seasonseat.common"：模块组件扫描地址。

"jp.co.pia.ticket.sports.hawks.seasonseat.backoffice.mapper"：主工程mapper扫描地址。

"jp.co.pia.ticket.sports.hawks.seasonseat.common.util.mapper"：模块mapper扫描地址。

import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.MessageSource;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.support.ReloadableResourceBundleMessageSource;
import org.springframework.transaction.annotation.EnableTransactionManagement;

@EnableTransactionManagement
@ComponentScan(basePackages = {"jp.co.pia.ticket.sports.hawks.seasonseat.backoffice","jp.co.pia.ticket.sports.hawks.seasonseat.common"})
@SpringBootApplication
@MapperScan({"jp.co.pia.ticket.sports.hawks.seasonseat.backoffice.mapper","jp.co.pia.ticket.sports.hawks.seasonseat.common.util.mapper"})
public class BackOfficeApplication {

    public static void main(String[] args) {
        SpringApplication.run(BackOfficeApplication.class, args);
    }

	@Bean
	public MessageSource messageSource() {
		ReloadableResourceBundleMessageSource messageSource = new ReloadableResourceBundleMessageSource();
		messageSource.setBasename("classpath:messages_backend");
		messageSource.setDefaultEncoding("UTF-8");
		return messageSource;
	}
}

工程配置文件

application.yml

classpath:/jp/co/pia/ticket/sports/hawks/seasonseat/backoffice/sql/*.xml：主工程sql扫描地址。

classpath:/jp/co/pia/ticket/sports/hawks/seasonseat/common/util/sql/*.xml：子工程sql扫描地址。

server:
  servlet:
    session:
      timeout: 1800

spring:
  datasource:
    driver-class-name: org.postgresql.Driver
    url: jdbc:postgresql://localhost:5432/iij
    username: postgres
    password: 11111111
  jpa:
    open-in-view: false
    properties:
      hibernate:
        temp:
          use_jdbc_metadata_defaults: false
        dialect: org.hibernate.dialect.PostgreSQLDialect
  main:
    allow-bean-definition-overriding: true

mybatis:
  configuration:
    map-underscore-to-camel-case: true
  mapper-locations: classpath:/jp/co/pia/ticket/sports/hawks/seasonseat/backoffice/sql/*.xml,classpath:/jp/co/pia/ticket/sports/hawks/seasonseat/common/util/sql/*.xml