springboot 不同类型多数据源配置及使用

springboot多数据源配置：

datasource.master.jdbc=jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=UTF-8&useSSL=true
         datasource.master.username=root
         datasource.master.password=123456
         datasource.master.driver-class-name=com.mysql.jdbc.Driver

datasource.master.url=jdbc:oracle:thin:@localhost:1521:test
        datasource.master.username=acct
        datasource.master.password=123456
        datasource.master.driver-class-name=oracle.jdbc.driver.OracleDriver
        datasource.master.max-idle=10
        datasource.master.max-wait=10000
        datasource.master.min-idle=5
        datasource.master.initial-size=5
        datasource.master.validation-query=SELECT 1
        datasource.master.test-on-borrow=false
        datasource.master.test-while-idle=true
        datasource.master.time-between-eviction-runs-millis=18800

第一个数据源实现：

import javax.sql.DataSource;

import org.apache.ibatis.session.SqlSessionFactory;
import org.mybatis.spring.SqlSessionFactoryBean;
import org.mybatis.spring.annotation.MapperScan;
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.context.annotation.PropertySource;
import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
import org.springframework.jdbc.datasource.DataSourceTransactionManager;
/**
* 主数据源配置
* @author zyl
*
*/
@Configuration
//读取自定义配置文件 datasource.properties
@PropertySource("classpath:config/datasource.properties")
//扫描 Mapper 接口并容器管理
@MapperScan(basePackages = MasterDataSourceConfig.PACKAGE, sqlSessionFactoryRef = "masterSqlSessionFactory")
public class MasterDataSourceConfig {

// 精确到 master 目录，以便跟其他数据源隔离
static final String PACKAGE = "com.acct.dao.master";
static final String TYPE_ALIASES_PACKAGE = "com.acct.domain.entity.master";
static final String MAPPER_LOCATION = "classpath:mapper/master/*.xml";

@Bean(name = "masterDataSource")
@Primary   
@ConfigurationProperties(prefix = "datasource.master")
public DataSource masterDataSource() {
return DataSourceBuilder.create().build();
}

@Bean(name = "masterTransactionManager")
@Primary
public DataSourceTransactionManager masterTransactionManager() {
return new DataSourceTransactionManager(masterDataSource());
}

@Bean(name = "masterSqlSessionFactory")
@Primary
public SqlSessionFactory masterSqlSessionFactory(@Qualifier("masterDataSource") DataSource masterDataSource)
throws Exception {
final SqlSessionFactoryBean sessionFactory = new SqlSessionFactoryBean();
sessionFactory.setDataSource(masterDataSource);
sessionFactory.setTypeAliasesPackage(MasterDataSourceConfig.TYPE_ALIASES_PACKAGE);
sessionFactory.setMapperLocations(
new PathMatchingResourcePatternResolver().getResources(MasterDataSourceConfig.MAPPER_LOCATION));
return sessionFactory.getObject();
}

}

@Primary 注解默认为第一个数据源

第二个数据源实现：

import javax.sql.DataSource;

import org.apache.ibatis.session.SqlSessionFactory;
import org.mybatis.spring.SqlSessionFactoryBean;
import org.mybatis.spring.annotation.MapperScan;
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.PropertySource;
import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
import org.springframework.jdbc.datasource.DataSourceTransactionManager;

/**
* 从数据源配置
* @author zyl
*
*/
@Configuration
//读取自定义配置文件 datasource.properties
@PropertySource("classpath:config/datasource.properties")
// 扫描 Mapper 接口并容器管理
@MapperScan(basePackages = ClusterDataSourceConfig.PACKAGE, sqlSessionFactoryRef = "clusterSqlSessionFactory")
public class ClusterDataSourceConfig {
// 精确到 cluster 目录，以便跟其他数据源隔离
static final String PACKAGE = "com.acct.dao.cluster";
static final String TYPE_ALIASES_PACKAGE = "com.acct.domain.entity.cluster";
static final String MAPPER_LOCATION = "classpath:mapper/cluster/*.xml";
@Bean(name = "clusterDataSource")
@ConfigurationProperties(prefix = "datasource.cluster")
public DataSource clusterDataSource() {
return DataSourceBuilder.create().build();
}

@Bean(name = "clusterTransactionManager")
public DataSourceTransactionManager clusterTransactionManager() {
return new DataSourceTransactionManager(clusterDataSource());
}

@Bean(name = "clusterSqlSessionFactory")
public SqlSessionFactory clusterSqlSessionFactory(@Qualifier("clusterDataSource") DataSource clusterDataSource)
throws Exception {
final SqlSessionFactoryBean sessionFactory = new SqlSessionFactoryBean();
sessionFactory.setDataSource(clusterDataSource);
sessionFactory.setTypeAliasesPackage(ClusterDataSourceConfig.TYPE_ALIASES_PACKAGE);
sessionFactory.setMapperLocations(
new PathMatchingResourcePatternResolver().getResources(ClusterDataSourceConfig.MAPPER_LOCATION));
return sessionFactory.getObject();
}
}

目录结构:

如有问题：请看我的下一篇文章：https://www.cnblogs.com/haoliyou/p/9604241.html

启动正常，ok！