使用方式
application.properties中数据库配置
#数据库配置
spring.datasource.db1.jdbc-url=jdbc:mysql://localhost:3306/gds?useUnicode=true&characterEncoding=utf8&serverTimezone=Asia/Shanghai&useSSL=false
spring.datasource.db1.username=root
spring.datasource.db1.password=root
spring.datasource.db1.driver-class-name=com.mysql.cj.jdbc.Driverspring.datasource.db2.jdbc-url=jdbc:mysql://localhost:3306/zkhx?useUnicode=true&characterEncoding=utf8&serverTimezone=Asia/Shanghai&useSSL=false
spring.datasource.db2.username=root
spring.datasource.db2.password=root
spring.datasource.db2.driver-class-name=com.mysql.cj.jdbc.Driver
config文件配置
1、配置 spring.datasource.db1
注：basePackages=“com.zkhx.dao.master”：prefix= “spring.datasource.db1”
绑定master目录下使用的是数据库db1 也就是gds
package com.zkhx.config;
import org.apache.ibatis.session.SqlSessionFactory;
import org.mybatis.spring.SqlSessionFactoryBean;
import org.mybatis.spring.SqlSessionTemplate;
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.core.io.support.PathMatchingResourcePatternResolver;
import javax.sql.DataSource;
@Configuration
// 配置mybatis的接口类放的地方
@MapperScan(basePackages = "com.zkhx.dao.master", sqlSessionFactoryRef = "dbSqlSessionFactory")
public class DataSourceConfig {
@Bean(name = "db")
@Primary
@ConfigurationProperties(prefix = "spring.datasource.db1")
public DataSource getDateSource1() {
return DataSourceBuilder.create().build();
}
@Bean
@ConfigurationProperties(prefix = "mybatis.configuration")
public org.apache.ibatis.session.Configuration configuration() {
return new org.apache.ibatis.session.Configuration();
}
@Bean(name = "dbSqlSessionFactory")
@Primary
public SqlSessionFactory test1SqlSessionFactory(@Qualifier("db") DataSource datasource, org.apache.ibatis.session.Configuration configuration)
throws Exception {
SqlSessionFactoryBean bean = new SqlSessionFactoryBean();
bean.setDataSource(datasource);
bean.setConfiguration(configuration);
bean.setMapperLocations(
// 设置mybatis的xml所在位置
new PathMatchingResourcePatternResolver().getResources("classpath*:mapper/master/*.xml"));
return bean.getObject();
}
@Bean("dbSqlSessionTemplate")
// 表示这个数据源是默认数据源
@Primary
public SqlSessionTemplate test1sqlsessiontemplate(
@Qualifier("dbSqlSessionFactory") SqlSessionFactory sessionfactory) {
return new SqlSessionTemplate(sessionfactory);
}
}2、配置 spring.datasource.db2
package com.zkhx.config;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.context.annotation.Configuration;
import org.apache.ibatis.session.SqlSessionFactory;
import org.mybatis.spring.SqlSessionFactoryBean;
import org.mybatis.spring.SqlSessionTemplate;
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.core.io.support.PathMatchingResourcePatternResolver;
import javax.sql.DataSource;
@Configuration
@MapperScan(basePackages = "com.zkhx.dao.vice", sqlSessionFactoryRef = "db2SqlSessionFactory")
public class DataSourceViceConfig {
@Bean(name = "db2")
@ConfigurationProperties(prefix = "spring.datasource.db2")
public DataSource getDateSource2() {
return DataSourceBuilder.create().build();
}
@Bean(name = "db2SqlSessionFactory")
public SqlSessionFactory test2SqlSessionFactory(@Qualifier("db2") DataSource datasource)
throws Exception {
SqlSessionFactoryBean bean = new SqlSessionFactoryBean();
bean.setDataSource(datasource);
bean.setMapperLocations(
new PathMatchingResourcePatternResolver().getResources("classpath*:mapper/vice/*.xml"));
return bean.getObject();
}
@Bean("db2SqlSessionTemplate")
public SqlSessionTemplate test2sqlsessiontemplate(
@Qualifier("db2SqlSessionFactory") SqlSessionFactory sessionfactory) {
return new SqlSessionTemplate(sessionfactory);
}
}3、截图
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.zkhx.dao.vice.StDBDataDao">
</mapper>
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