#数据库配置

#数据源类型

spring.datasource.type=com.alibaba.druid.pool.DruidDataSource

#我用的是springBoot 2.1 不需要配置驱动，配置驱动的话反而会出现警告

#spring.datasource.url=jdbc:mysql://192.168.238.130:3306/dev?useUniode=true&characterEncoding=utf-8

#spring.datasource.username=root

#spring.datasource.password=123

#把前缀替换成自定义的，后缀不能变

#在方法中根据特定的前缀获取数据源连接信息

data1.url=jdbc:mysql://192.168.238.130:3306/dev?useUniode=true&characterEncoding=utf-8

data1.username=root

data1.password=123

data2.url=jdbc:mysql://192.168.238.130:3306/dev_1?useUniode=true&characterEncoding=utf-8

data2.username=root

data2.password=123

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.beans.factory.annotation.Value;

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;

@Configuration

@MapperScan(basePackages={"com.sc.myboot.dao"},sqlSessionFactoryRef = "MySqlSessionFactory1")

public class DataBaseConfig {

    @Value("${spring.datasource.type}")

    private Class<? extends DataSource> dataSourceType;

    @Bean(name = "MyDataSource1")

    @ConfigurationProperties(prefix = "data2")

    public DataSource getDataSource(){

        return DataSourceBuilder.create().type(dataSourceType).build();

    }

    @Bean(name = "MySqlSessionFactory1")

    public SqlSessionFactory masterSqlSessionFactory(@Qualifier("MyDataSource1") DataSource masterDataSource)

            throws Exception {

        final SqlSessionFactoryBean sessionFactory = new SqlSessionFactoryBean();

        sessionFactory.setDataSource(masterDataSource);

        return sessionFactory.getObject();

    }

}