Spring Boot 多数据源配置
作者：互联网
1.1. 手动切换数据源
application.properties
# Order
# 如果用Druid作为数据源，应该用url属性，而不是jdbc-url
spring.datasource.order.jdbc-url=jdbc:mysql://localhost:3306/order?useUnicode=true&characterEncoding=utf8&allowMultiQueries=true&useSSL=false
spring.datasource.order.username=root
spring.datasource.order.password=123456
spring.datasource.order.driver-class-name=com.mysql.cj.jdbc.Driver
# Stock
spring.datasource.stock.jdbc-url=jdbc:mysql://localhost:3306/stock?useUnicode=true&characterEncoding=utf8&allowMultiQueries=true&useSSL=false
spring.datasource.stock.username=root
spring.datasource.stock.password=123456
spring.datasource.stock.driver-class-name=com.mysql.cj.jdbc.Driver
# Account
spring.datasource.account.jdbc-url=jdbc:mysql://localhost:3306/account?useUnicode=true&characterEncoding=utf8&allowMultiQueries=true&useSSL=false
spring.datasource.account.username=root
spring.datasource.account.password=123456
spring.datasource.account.driver-class-name=com.mysql.cj.jdbc.Driver
配置数据源
DataSourceConfig.java
package com.cjs.example.config;
import com.alibaba.druid.pool.DruidDataSource;
import com.baomidou.mybatisplus.extension.spring.MybatisSqlSessionFactoryBean;
import com.zaxxer.hikari.HikariDataSource;
import org.mybatis.spring.SqlSessionFactoryBean;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.boot.jdbc.DataSourceBuilder;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;
import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
import javax.sql.DataSource;
import java.util.HashMap;
import java.util.Map;
@Configuration
public class DataSourceConfig {
@Bean("orderDataSource")
@ConfigurationProperties(prefix = "spring.datasource.order")
public DataSource orderDataSource() {
// return new HikariDataSource();
// return new DruidDataSource();
return DataSourceBuilder.create().build();
}
@Bean("accountDataSource")
@ConfigurationProperties(prefix = "spring.datasource.account")
public DataSource accountDataSource() {
// return new HikariDataSource();
// return new DruidDataSource();
return DataSourceBuilder.create().build();
}
@Bean("stockDataSource")
@ConfigurationProperties(prefix = "spring.datasource.stock")
public DataSource stockDataSource() {
// return new HikariDataSource();
// return new DruidDataSource();
return DataSourceBuilder.create().build();
}
@Primary
@Bean("dynamicDataSource")
public DataSource dynamicDataSource(@Qualifier("orderDataSource") DataSource orderDataSource,
@Qualifier("accountDataSource") DataSource accountDataSource,
@Qualifier("stockDataSource") DataSource stockDataSource) {
Map<Object, Object> dataSourceMap = new HashMap<>(3);
dataSourceMap.put(DataSourceKey.ORDER.name(), orderDataSource);
dataSourceMap.put(DataSourceKey.STOCK.name(), stockDataSource);
dataSourceMap.put(DataSourceKey.ACCOUNT.name(), accountDataSource);
DynamicRoutingDataSource dynamicRoutingDataSource = new DynamicRoutingDataSource();
dynamicRoutingDataSource.setDefaultTargetDataSource(orderDataSource);
dynamicRoutingDataSource.setTargetDataSources(dataSourceMap);
return dynamicRoutingDataSource;
}
/* https://baomidou.com/pages/3b5af0/ */
@Bean
public MybatisSqlSessionFactoryBean sqlSessionFactoryBean(@Qualifier("dynamicDataSource") DataSource dataSource) {
MybatisSqlSessionFactoryBean sqlSessionFactoryBean = new MybatisSqlSessionFactoryBean();
sqlSessionFactoryBean.setDataSource(dataSource);
// sqlSessionFactoryBean.setMapperLocations(new PathMatchingResourcePatternResolver().getResources("classpath:mappers/*.xml"));
return sqlSessionFactoryBean;
}
}
由于是MyBatsi-Plus，所以配的是MybatisSqlSessionFactoryBean，如果是MyBatis，则应该是SqlSessionFactoryBean