Spring Boot mybatis多データソースを実現

package com.dfj.config;

import com.alibaba.druid.spring.boot.autoconfigure.DruidDataSourceBuilder;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.jdbc.datasource.DriverManagerDataSource;

import javax.sql.DataSource;

@Configuration
public class DataSourceConfig {

    @Bean
    @ConfigurationProperties(prefix = "spring.mg-rw-datasource")
    public DataSource mgDataSource() {
        return DruidDataSourceBuilder.create().build();
    }

    @Bean
    @ConfigurationProperties(prefix = "spring.ex-ro-datasource")
    public DataSource exDataSource() {
        return DruidDataSourceBuilder.create().build();
    }

}

mg         

package com.dfj.config;


import org.apache.ibatis.session.SqlSessionFactory;
import org.mybatis.spring.SqlSessionFactoryBean;
import org.mybatis.spring.SqlSessionTemplate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
import org.springframework.jdbc.datasource.DataSourceTransactionManager;
import org.springframework.transaction.PlatformTransactionManager;
import org.springframework.transaction.annotation.EnableTransactionManagement;
import tk.mybatis.spring.annotation.MapperScan;

import javax.sql.DataSource;

@Configuration
@EnableTransactionManagement
@MapperScan(basePackages = "com.itranswarp.crypto.manage.mapper.mg",sqlSessionTemplateRef = "mgSqlSessionTemplate")
public class MgDataSourceConfig {

    @Autowired
    @Qualifier("mgDataSource")
    private DataSource mgDS;

    @Bean
    public SqlSessionFactory mgSqlSessionFactory() throws Exception {
        SqlSessionFactoryBean bean = new SqlSessionFactoryBean();
        tk.mybatis.mapper.session.Configuration configuration = new tk.mybatis.mapper.session.Configuration();
        configuration.setMapUnderscoreToCamelCase(true);
        bean.setConfiguration(configuration);
        bean.setDataSource(mgDS);
        bean.setTypeAliasesPackage("com.itranswarp.crypto.manage.web.mvc.bean.model.mg");
        bean.setMapperLocations(new PathMatchingResourcePatternResolver().getResources("classpath:*.xml"));
        return bean.getObject();
    }

    @Bean
    public PlatformTransactionManager mgTransactionManager() {
        return new DataSourceTransactionManager(mgDS);
    }

    @Bean
    public SqlSessionTemplate mgSqlSessionTemplate(@Qualifier("mgSqlSessionFactory") SqlSessionFactory sqlSessionFactory) {
        return new SqlSessionTemplate(sqlSessionFactory);
    }

}

package com.dfj.config;

import org.apache.ibatis.session.SqlSessionFactory;
import org.mybatis.spring.SqlSessionFactoryBean;
import org.mybatis.spring.SqlSessionTemplate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
import org.springframework.jdbc.datasource.DataSourceTransactionManager;
import org.springframework.transaction.PlatformTransactionManager;
import org.springframework.transaction.annotation.EnableTransactionManagement;
import tk.mybatis.spring.annotation.MapperScan;

import javax.sql.DataSource;

@Configuration
@EnableTransactionManagement
@MapperScan(basePackages = "com.itranswarp.crypto.manage.mapper.ui",sqlSessionTemplateRef = "uiSqlSessionTemplate")
public class UiDataSourceConfig {

    @Autowired
    @Qualifier("uiDataSource")
    private DataSource uiDS;

    @Bean
    public SqlSessionFactory uiSqlSessionFactory() throws Exception {
        SqlSessionFactoryBean bean = new SqlSessionFactoryBean();
        bean.setDataSource(uiDS);
        bean.setTypeAliasesPackage("com.itranswarp.crypto.manage.web.mvc.bean.model.ui");
        bean.setMapperLocations(new PathMatchingResourcePatternResolver().getResources("classpath:*.xml"));
        return bean.getObject();
    }

    @Bean
    public PlatformTransactionManager uiTransactionManager() {
        return new DataSourceTransactionManager(uiDS);
    }

    @Bean
    public SqlSessionTemplate uiSqlSessionTemplate(@Qualifier("uiSqlSessionFactory") SqlSessionFactory sqlSessionFactory) {
        return new SqlSessionTemplate(sqlSessionFactory);
    }

}