eclipse中搭建springboot學習（12）---多資料來源
pom.xml新增依賴
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>
spring-boot-configuration-processor
</artifactId>
<optional>true</optional>
</dependency>
連線兩個不同的資料庫
spring.datasource.primary.driver-class-name=oracle.jdbc.driver.OracleDriver
spring.datasource.primary.jdbc-url=jdbc:oracle:thin:@192.168.200.61:1521:XXX
spring.datasource.primary.username=XXX
spring.datasource.primary.password=XXX
spring.datasource.secondary.driver-class-name=oracle.jdbc.driver.OracleDriver
spring.datasource.secondary.jdbc-url=jdbc:oracle:thin:@192.168.200.61:1521:XXX
spring.datasource.secondary.username=XXX
spring.datasource.secondary.password=XXX
DataSourceConfig配置說明有兩個資料來源
package com.example.config;
import javax.sql.DataSource;
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;/**
* Created by Administrator on 2017/8/11.
*
* 資料來源的配置
*
*/
@Configuration
public class DataSourceConfig {@Bean(name = "primaryDataSource")
@Qualifier("primaryDataSource")
@Primary
@ConfigurationProperties(prefix = "spring.datasource.primary")
public DataSource primaryDataSource() {
return DataSourceBuilder.create().build();
}@Bean(name = "secondaryDataSource")
@Qualifier("secondaryDataSource")
@ConfigurationProperties(prefix = "spring.datasource.secondary")
public DataSource secondaryDataSource() {
return DataSourceBuilder.create().build();
}}
PrimaryConfig
package com.example.config;
import java.util.Map;
import javax.persistence.EntityManager;
import javax.sql.DataSource;import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.boot.autoconfigure.orm.jpa.HibernateSettings;
import org.springframework.boot.autoconfigure.orm.jpa.JpaProperties;
import org.springframework.boot.orm.jpa.EntityManagerFactoryBuilder;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;
import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
import org.springframework.orm.jpa.JpaTransactionManager;
import org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean;
import org.springframework.transaction.PlatformTransactionManager;
import org.springframework.transaction.annotation.EnableTransactionManagement;@Configuration
@EnableTransactionManagement
@EnableJpaRepositories(entityManagerFactoryRef = "entityManagerFactoryPrimary", transactionManagerRef = "transactionManagerPrimary", basePackages = {
"com.example.demo1029" }) // 設定Repository所在位置
public class PrimaryConfig {@Autowired
@Qualifier("primaryDataSource")
private DataSource primaryDataSource;@Primary
@Bean(name = "entityManagerPrimary")
public EntityManager entityManager(EntityManagerFactoryBuilder builder) {
return entityManagerFactoryPrimary(builder).getObject().createEntityManager();
}@Primary
@Bean(name = "entityManagerFactoryPrimary")
public LocalContainerEntityManagerFactoryBean entityManagerFactoryPrimary(EntityManagerFactoryBuilder builder) {
return builder.dataSource(primaryDataSource).properties(getVendorProperties()).packages("com.example.demo1029") // 設定實體類所在位置
.persistenceUnit("primaryPersistenceUnit").build();
}@Autowired
private JpaProperties jpaProperties;private Map<String, Object> getVendorProperties() {
HibernateSettings settings = new HibernateSettings();
return jpaProperties.getHibernateProperties(settings);
}@Primary
@Bean(name = "transactionManagerPrimary")
public PlatformTransactionManager transactionManagerPrimary(EntityManagerFactoryBuilder builder) {
return new JpaTransactionManager(entityManagerFactoryPrimary(builder).getObject());
}}
SecondaryConfig
package com.example.config;
import java.util.Map;
import javax.persistence.EntityManager;
import javax.sql.DataSource;import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.boot.autoconfigure.orm.jpa.HibernateSettings;
import org.springframework.boot.autoconfigure.orm.jpa.JpaProperties;
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.orm.jpa.JpaTransactionManager;
import org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean;
import org.springframework.transaction.PlatformTransactionManager;
import org.springframework.transaction.annotation.EnableTransactionManagement;@Configuration
@EnableTransactionManagement
@EnableJpaRepositories(entityManagerFactoryRef = "entityManagerFactorySecondary", transactionManagerRef = "transactionManagerSecondary", basePackages = {
"com.example.demo1025" }) // 設定Repository所在位置
public class SecondaryConfig {@Autowired
@Qualifier("secondaryDataSource")
private DataSource secondaryDataSource;@Bean(name = "entityManagerSecondary")
public EntityManager entityManager(EntityManagerFactoryBuilder builder) {
return entityManagerFactorySecondary(builder).getObject().createEntityManager();
}@Bean(name = "entityManagerFactorySecondary")
public LocalContainerEntityManagerFactoryBean entityManagerFactorySecondary(EntityManagerFactoryBuilder builder) {
return builder.dataSource(secondaryDataSource).properties(getVendorProperties())
.packages("com.example.demo1025") // 設定實體類所在位置
.persistenceUnit("secondaryPersistenceUnit").build();
}@Autowired
private JpaProperties jpaProperties;private Map<String, Object> getVendorProperties() {
HibernateSettings settings = new HibernateSettings();
return jpaProperties.getHibernateProperties(settings);
}@Bean(name = "transactionManagerSecondary")
PlatformTransactionManager transactionManagerSecondary(EntityManagerFactoryBuilder builder) {
return new JpaTransactionManager(entityManagerFactorySecondary(builder).getObject());
}}
