springboot

1. 多数据源配置

1.1 pom依赖

 <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.0.5.RELEASE</version>
    </parent>

    <properties>
        <junit.version>4.12</junit.version>
        <mybatis.boot.version>1.3.2</mybatis.boot.version>
        <druid.version>1.1.10</druid.version>
        <mysql.connector.java.version>5.1.43</mysql.connector.java.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>${junit.version}</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>${mybatis.boot.version}</version>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>${druid.version}</version>
        </dependency>

        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>${mysql.connector.java.version}</version>
        </dependency>
    </dependencies>

1.2 datasource-config

@Configuration
@MapperScan(basePackages = "com.db1.mapper", sqlSessionTemplateRef = "baseSqlSessionTemplate")
public class DB1DataSourceConfig {
    @Bean(name = "baseDataSource")
    @ConfigurationProperties(prefix = "spring.datasource.db1")
    @Primary
    public DataSource setDataSource() {
        return DataSourceBuilder.create().build();
    }

    @Bean(name = "baseTransactionManager")
    @Primary
    public DataSourceTransactionManager setTransactionManager(@Qualifier("baseDataSource") DataSource dataSource) {
        return new DataSourceTransactionManager(dataSource);
    }

    @Bean(name = "baseSqlSessionFactory")
    @Primary
    public SqlSessionFactory setSqlSessionFactory(@Qualifier("baseDataSource") DataSource dataSource) throws Exception {
        SqlSessionFactoryBean bean = new SqlSessionFactoryBean();
        bean.setDataSource(dataSource);
        bean.setMapperLocations(new PathMatchingResourcePatternResolver().getResources("classpath:db1/mapper/*.xml"));
        return bean.getObject();
    }

    @Bean(name = "baseSqlSessionTemplate")
    @Primary
    public SqlSessionTemplate setSqlSessionTemplate(@Qualifier("baseSqlSessionFactory") SqlSessionFactory sqlSessionFactory) throws Exception {
        return new SqlSessionTemplate(sqlSessionFactory);
    }
}

1.3 yml-config

spring:
  datasource:
    type: com.alibaba.druid.pool.DruidDataSource
    db1:
      type: com.alibaba.druid.pool.DruidDataSource
      driver-class-name: com.mysql.jdbc.Driver
      initialize: true #指定初始化数据源，是否用data.sql来初始化，默认: true
      name: db1
      jdbc-url: jdbc:mysql://127.0.0.1:3306/db1
      username: root
      password: 123456
    db2:
      type: com.alibaba.druid.pool.DruidDataSource
      driver-class-name: com.mysql.jdbc.Driver
      initialize: true
      name: db2
      jdbc-url: jdbc:mysql://127.0.0.1:3306/db2
      username: root
      password: 123456

2. AOP的使用

2.1 pom依赖

<dependency>
    <groupId>org.aspectj</groupId>
    <artifactId>aspectjweaver</artifactId>
    <version>1.9.0</version>
</dependency>