https://www.jianshu.com/p/ff5af6c59365
多数据源配置,在我们集成多个系统或者对接的时候经常会用到,结合springboot、druid提供了比较方便的集成方案。
思路:
1、yml中配置多个数据源信息
2、通过AOP切换不同数据源
3、配合mybatis plus使用
1、yml配置
spring:
aop:
proxy-target-class: true
auto: true
datasource:
druid:
db1:
url: jdbc:mysql://localhost:3306/eboot
username: root
password: root
driver-class-name: com.mysql.jdbc.Driver
initialSize: 5
minIdle: 5
maxActive: 20
db2:
url: jdbc:oracle:thin:@192.168.136.222:ORCL
username: sa
password: sa123456
driver-class-name: oracle.jdbc.OracleDriver
initialSize: 5
minIdle: 5
maxActive: 20
db3:
url: jdbc:oracle:thin:@192.168.136.223:ORCL
username: sb
password: sb123456
driver-class-name: oracle.jdbc.OracleDriver
initialSize: 5
minIdle: 5
maxActive: 20
2、启动加载多个数据源
下面mybatis plus的全局配置被注掉了,因为同样可以在yml中配置也可以
package com.df.openapi.config;
import com.alibaba.druid.spring.boot.autoconfigure.DruidDataSourceBuilder;
import com.baomidou.mybatisplus.MybatisConfiguration;
import com.baomidou.mybatisplus.entity.GlobalConfiguration;
import com.baomidou.mybatisplus.mapper.LogicSqlInjector;
import com.baomidou.mybatisplus.plugins.PaginationInterceptor;
import com.baomidou.mybatisplus.spring.MybatisSqlSessionFactoryBean;
import com.df.openapi.config.db.DBTypeEnum;
import com.df.openapi.config.db.DynamicDataSource;
import com.df.openapi.config.db.MyMetaObjectHandler;
import org.apache.ibatis.plugin.Interceptor;
import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibatis.type.JdbcType;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;
import org.springframework.transaction.annotation.EnableTransactionManagement;
import javax.sql.DataSource;
import java.util.HashMap;
import java.util.Map;
/**
* @author 小尘哥
*/
@EnableTransactionManagement
@Configuration
@MapperScan("com.df.openapi.**.mapper.db*")
public class MybatisPlusConfig {
@Bean
public PaginationInterceptor paginationInterceptor() {
PaginationInterceptor paginationInterceptor = new PaginationInterceptor();
paginationInterceptor.setLocalPage(true);
return paginationInterceptor;
}
@Bean(name = "db1")
@ConfigurationProperties(prefix = "spring.datasource.druid.db1")
public DataSource db1() {
return DruidDataSourceBuilder.create().build(