springboot 详解 (三） 多数据源

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springboot 详解 （一） helloworld                                    下载demo          

springboot 详解 （二） crud                                             下载demo     

springboot 详解 (三） 多数据源                                        下载demo      

springboot 详解 (四）redis & filter                                    下载demo    

springboot 详解 (五）interceptor                                       下载demo     

springboot 详解 (六）servlet & scheduled & listener         下载demo     

springboot 详解（七） dubbox & zookeeper   下载（productor） 下载（constumser）

springboot 同步解耦 异步化  下载demo

springboot 详解（八） springboot & springcloud 

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package com.curiousby.cn.datasources;

import javax.sql.DataSource;

import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.boot.autoconfigure.jdbc.DataSourceBuilder;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;

/**
 * @Type DataSourceConfig.java
 * @Desc 
 * @author cmcc-B100036
 * @date 2016年11月15日 下午5:38:44
 * @version 
 */

@Configuration
public class DataSourceConfig {

    @Bean(name = "primaryDS")
    @Qualifier("primaryDS")
    @Primary
    @ConfigurationProperties(prefix = "datasource.one.mysql")
    public DataSource primaryDataSource() {
        return DataSourceBuilder.create().build();
    }

    @Bean(name = "secondaryDS")
    @Qualifier("secondaryDS")
    @ConfigurationProperties(prefix = "datasource.two.mysql")
    public DataSource secondaryDataSource() {
        return DataSourceBuilder.create().build();
    }

}

@Configuration
@EnableTransactionManagement
@EnableJpaRepositories(entityManagerFactoryRef = "entityManagerFactoryPrimary", transactionManagerRef = "transactionManagerPrimary", basePackages = {
        "com.curiousby.cn.one.dao" }) //设置dao 
public class RepositoryPrimaryConfig {

    @Autowired
    private JpaProperties jpaProperties;

    @Autowired
    @Qualifier("primaryDS")
    private DataSource primaryDS;

    @Bean(name = "entityManagerPrimary")
    @Primary
    public EntityManager entityManager(EntityManagerFactoryBuilder builder) {
        return entityManagerFactoryPrimary(builder).getObject().createEntityManager();
    }

    @Bean(name = "entityManagerFactoryPrimary")
    @Primary
    public LocalContainerEntityManagerFactoryBean entityManagerFactoryPrimary(EntityManagerFactoryBuilder builder) {
        return builder.dataSource(primaryDS).properties(getVendorProperties(primaryDS))
                .packages("com.curiousby.cn.one.entity") //设置实体类所在位置
                .persistenceUnit("primaryPersistenceUnit").build();
    }

    private Map<String, String> getVendorProperties(DataSource dataSource) {
        return jpaProperties.getHibernateProperties(dataSource);
    }

    @Bean(name = "transactionManagerPrimary")
    @Primary
    PlatformTransactionManager transactionManagerPrimary(EntityManagerFactoryBuilder builder) {
        return new JpaTransactionManager(entityManagerFactoryPrimary(builder).getObject());
    }

}

@Configuration
@EnableTransactionManagement
@EnableJpaRepositories(entityManagerFactoryRef = "entityManagerFactorySecondary", transactionManagerRef = "transactionManagerSecondary", basePackages = {
        "com.curiousby.cn.two.dao" })
public class RepositorySecondaryConfig {
    @Autowired
    private JpaProperties jpaProperties;

    @Autowired
    @Qualifier("secondaryDS")
    private DataSource secondaryDS;

    @Bean(name = "entityManagerSecondary")
    public EntityManager entityManager(EntityManagerFactoryBuilder builder) {
        return entityManagerFactorySecondary(builder).getObject().createEntityManager();
    }

    @Bean(name = "entityManagerFactorySecondary")
    public LocalContainerEntityManagerFactoryBean entityManagerFactorySecondary(EntityManagerFactoryBuilder builder) {
        return builder.dataSource(secondaryDS).properties(getVendorProperties(secondaryDS))
                .packages("com.curiousby.cn.two.entity")
                .persistenceUnit("secondaryPersistenceUnit").build();
    }

    private Map<String, String> getVendorProperties(DataSource dataSource) {
        return jpaProperties.getHibernateProperties(dataSource);
    }

    @Bean(name = "transactionManagerSecondary")
    PlatformTransactionManager transactionManagerSecondary(EntityManagerFactoryBuilder builder) {
        return new JpaTransactionManager(entityManagerFactorySecondary(builder).getObject());
    }

}

#multi datasources
datasource.one.mysql.url=jdbc:mysql://localhost:3306/database
datasource.one.mysql.username=root
datasource.one.mysql.password=root
datasource.one.mysql.driverClassName=com.mysql.jdbc.Driver

#DataSource settings for mysql
datasource.two.mysql.url=jdbc:mysql://127.0.0.1:3306/database2
datasource.two.mysql.username=root
datasource.two.mysql.password=root
datasource.two.mysql.driverClassName=com.mysql.jdbc.Driver

#one datasource
#spring.datasource.url=jdbc:mysql://localhost:3306/database
#spring.datasource.username=root
#spring.datasource.password=root
#spring.datasource.driverClassName=com.mysql.jdbc.Driver

 
spring.jpa.database=MYSQL
spring.jpa.show-sql=true
spring.jpa.hibernate.ddl-auto=update
spring.jpa.hibernate.naming-strategy=org.hibernate.cfg.ImprovedNamingStrategy
spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MySQL5Dialect

 

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