Springboot spring data jpa 多数据源的配置01

Springboot spring data jpa 多数据源的配置 (说明:这只是引入了多个数据源,他们各自管理各自的事务,并没有实现统一的事务控制)

例: user数据库   global 数据库 

 

1 .application.properties

#database edi configuration

datasource.edi.jdbc-url=jdbc:mysql:///:3306/Bookings?autoReconnect=true&rewriteBatchedStatements=true&zeroDateTimeBehavior=convertToNull&useUnicode=true&characterEncoding=utf8&characterSetResults=utf8
datasource.edi.driverClassName=com.mysql.cj.jdbc.Driver
datasource.edi.username=root
datasource.edi.password=root
datasource.edi.sql-script-encoding=UTF-8
datasource.edi.validation-query=SELECT 1
datasource.edi.initial-size=2

#database edi configuration
datasource.bookings.jdbc-url=jdbc:mysql:///:3306/Bookings?autoReconnect=true&rewriteBatchedStatements=true&zeroDateTimeBehavior=convertToNull&useUnicode=true&characterEncoding=utf8&characterSetResults=utf8
datasource.bookings.driverClassName=com.mysql.cj.jdbc.Driver
datasource.bookings.username=root
datasource.bookings.password=root
datasource.bookings.sql-script-encoding=UTF-8
datasource.bookings.validation-query=SELECT 1
datasource.bookings.initial-size=2


# Show all queries
spring.jpa.show-sql=true
spring.jpa.properties.hibernate.format_sql=true

spring.jpa.properties.hibernate.dialect = org.hibernate.dialect.MySQL5InnoDBDialect
spring.jpa.hibernate.naming.physical-strategy =com.icil.milestone.push.query.strategy.UpperTableStrategy

2.配置:  (下面为bookings数据库的配置)

import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.boot.jdbc.DataSourceBuilder;
import org.springframework.boot.orm.jpa.EntityManagerFactoryBuilder;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.orm.jpa.JpaTransactionManager;
import org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean;
import org.springframework.transaction.PlatformTransactionManager;
import org.springframework.transaction.annotation.EnableTransactionManagement;

import javax.persistence.EntityManagerFactory;
import javax.sql.DataSource;

@Configuration
@EnableTransactionManagement
@EnableJpaRepositories(entityManagerFactoryRef = "bookingsEntityManagerFactory",
    transactionManagerRef = "bookingsTransactionManager",
    basePackages = {"com.icil.elsa.collection.repository.bookings"})//repository的路径,给个数据源,务必单独一个文件夹
public class BookingsDbConfig {
    
    @Qualifier("bookingsDataSource")
    @Bean(name = "bookingsDataSource")
    @ConfigurationProperties(prefix = "datasource.bookings") //指定数据源的配置
    public DataSource bookingsDataSource() {
        return DataSourceBuilder.create().build();
    }

    /*protected Map<String, Object> jpaProperties() {
        Map<String, Object> props = new HashMap<>();
        props.put("hibernate.physical_naming_strategy", SpringPhysicalNamingStrategy.class.getName());
        props.put("hibernate.implicit_naming_strategy", SpringImplicitNamingStrategy.class.getName());
        return props;
    }*/

    @Bean("bookingsEntityManagerFactory")
    public LocalContainerEntityManagerFactoryBean entityManagerFactory(
            EntityManagerFactoryBuilder builder, @Qualifier("bookingsDataSource") DataSource dataSource) {
        return builder
                .dataSource(dataSource)
                .packages("com.icil.elsa.collection.entries.bookings") ////指定实体对象的路径,给个数据源,务必单独一个文件夹
                .persistenceUnit("bookings")
                .build();
    }

    @Bean(name = "bookingsTransactionManager")
    public PlatformTransactionManager transactionManager(
            @Qualifier("bookingsEntityManagerFactory") EntityManagerFactory entityManagerFactory) {
        return new JpaTransactionManager(entityManagerFactory);
    }

    
    @Bean(name = "bookingJdbcTemplate")
    public JdbcTemplate bookingJdbcTemplate(@Qualifier("bookingsDataSource") DataSource dataSource) {
        return new JdbcTemplate(dataSource);
    }
    

}

配置:  (下面为EDI数据库的配置--和上面一样)  booking 改为EDI