java 多数据源以及多数源事务控制

需要导入jar包

<!-- JPA -->
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-jta-atomikos</artifactId>
</dependency>

我使用的是springboot yml文件配置数据库

appwms:
  datasource:
   driverClassName: oracle.jdbc.OracleDriver
   url: jdbc:oracle:thin:@127.1.1.1:1521:ORCL
   username: test
   password: 121212

platform:
  datasource:
    driverClassName: com.mysql.jdbc.Driver
    url: jdbc:mysql://127.1.1.1:1521:3306/test?useUnicode=true&characterEncoding=utf8
    username: test
    password: 121212

最主要的类

package com.creditall.innavotion.credit.reporting.config;

import com.alibaba.druid.pool.xa.DruidXADataSource;
import com.atomikos.icatch.jta.UserTransactionImp;
import com.atomikos.icatch.jta.UserTransactionManager;
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.jta.atomikos.AtomikosDataSourceBean;
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 org.springframework.transaction.jta.JtaTransactionManager;

import javax.sql.DataSource;
import javax.transaction.UserTransaction;


@Configuration
@MapperScan(value = "mapper地址", sqlSessionFactoryRef = "appwmsDataSourceFactory")
public class AppwmsDataSourceConfig {

    @Value("${appwms.datasource.url}")
    private String url;

    @Value("${appwms.datasource.username}")
    private String user;

    @Value("${appwms.datasource.password}")
    private String password;

    @Value("${appwms.datasource.driverClassName}")
    private String driverClass;

    @Bean(name = "appwmsDataSource")
    @Primary
    public DataSource masterDataSource() {
        DruidXADataSource druidXADataSource = new DruidXADataSource();
        druidXADataSource.setUrl(url);
        druidXADataSource.setUsername(user);
        druidXADataSource.setPassword(password);

        AtomikosDataSourceBean atomikosDataSourceBean = new AtomikosDataSourceBean();
        atomikosDataSourceBean.setXaDataSource(druidXADataSource);
        atomikosDataSourceBean.setUniqueResourceName("appwmsDataSource");
        atomikosDataSourceBean.setPoolSize(5);
        return atomikosDataSourceBean;
    }

    /*使用这个来做总事务 后面的数据源就不用设置事务了*/
    @Bean(name = "transactionManager")
    @Primary
    public JtaTransactionManager regTransactionManager() {
        UserTransactionManager userTransactionManager = new UserTransactionManager();
        UserTransaction userTransaction = new UserTransactionImp();
        return new JtaTransactionManager(userTransaction, userTransactionManager);
    }

    @Bean(name = "appwmsDataSourceFactory")
    @Primary
    public SqlSessionFactory masterSqlSessionFactory(@Qualifier("appwmsDataSource") DataSource masterDataSource)
            throws Exception {
        final SqlSessionFactoryBean sessionFactory = new SqlSessionFactoryBean();
        sessionFactory.setDataSource(masterDataSource);
        sessionFactory.setMapperLocations(new PathMatchingResourcePatternResolver()
                .getResources("classpath:mapping/appwms/*.xml"));
        return sessionFactory.getObject();
    }
}

package com.creditall.innavotion.credit.reporting.config;

import com.alibaba.druid.pool.xa.DruidXADataSource;

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.jta.atomikos.AtomikosDataSourceBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.io.support.PathMatchingResourcePatternResolver;

import javax.sql.DataSource;

@Configuration
// // 扫描 Mapper接口
@MapperScan(value ="mapper地址" ,sqlSessionFactoryRef = "platformDataSourceFactory")
public class PlatformDataSourceConfig {


    @Value("${platform.datasource.url}")
    private String url;

    @Value("${platform.datasource.username}")
    private String user;

    @Value("${platform.datasource.password}")
    private String password;

    @Bean(name = "platformDataSource")
    public DataSource masterDataSource() {
        DruidXADataSource druidXADataSource = new DruidXADataSource();
        druidXADataSource.setUrl(url);
        druidXADataSource.setUsername(user);
        druidXADataSource.setPassword(password);

        AtomikosDataSourceBean atomikosDataSourceBean = new AtomikosDataSourceBean();
        atomikosDataSourceBean.setXaDataSource(druidXADataSource);
        atomikosDataSourceBean.setUniqueResourceName("platformDataSource");
        atomikosDataSourceBean.setPoolSize(5);
        return atomikosDataSourceBean;
    }


    @Bean(name = "platformDataSourceFactory")
    public SqlSessionFactory masterSqlSessionFactory(@Qualifier("platformDataSource") DataSource masterDataSource)
            throws Exception {
        final SqlSessionFactoryBean sessionFactory = new SqlSessionFactoryBean();
        sessionFactory.setDataSource(masterDataSource);
        sessionFactory.setMapperLocations(new PathMatchingResourcePatternResolver()
                .getResources("classpath:mapping/platform/*.xml"));
        return sessionFactory.getObject();
    }

}

service方法不用添加注解就可以实现事务控制