多數據源配置

多數據源配置

/**
*多數據源中只有一個源的配置文件中有@Primary註解，其他的都要刪掉
*每個數據源應該對應test1,2,3...不能相同否則鏈接的是同一個
*
*改變的地方：basePackages對應接口的包的位置
*每一個數據源應該有不同的包，包裏面有接口
*prefix對應數據源的前綴
*注意配置properties時是jdbc-url,driver-class-name
**/
package com.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.jdbc.datasource.DataSourceTransactionManager;

import javax.sql.DataSource;

/**
 * 註釋：
 * 作者：秦盟
 * 時間：2018-08-04 9:57
 */
@Configuration // 註冊到springboot容器中
@MapperScan(basePackages = "com.mapper", sqlSessionFactoryRef = "test1SqlSessionFactory")
public class DataSourceConfig1 {

    @Bean(name = "test1DataSource")
    @Primary
    @ConfigurationProperties(prefix = "spring.datasource.test1")
    public DataSource testDataSource() {
        return DataSourceBuilder.create().build();
    }

    @Bean(name = "test1SqlSessionFactory")
    @Primary
    public SqlSessionFactory testSqlSessionFactory(@Qualifier("test1DataSource") DataSource dataSource)
            throws Exception {
        SqlSessionFactoryBean bean = new SqlSessionFactoryBean();
        bean.setDataSource(dataSource);
//		bean.setMapperLocations(
//				new PathMatchingResourcePatternResolver().getResources("classpath:mybatis/mapper/test1/*.xml"));
        return bean.getObject();
    }

    @Bean(name = "test1TransactionManager")
    @Primary
    public DataSourceTransactionManager testTransactionManager(@Qualifier("test1DataSource") DataSource dataSource) {
        return new DataSourceTransactionManager(dataSource);
    }

    @Bean(name = "test1SqlSessionTemplate")
    public SqlSessionTemplate testSqlSessionTemplate(
            @Qualifier("test1SqlSessionFactory") SqlSessionFactory sqlSessionFactory) throws Exception {
        return new SqlSessionTemplate(sqlSessionFactory);
    }

}