多个数据源与spring boot jpa

时间：2017-02-07 10:05:21

标签： jpa spring-boot multiple-databases

尝试使用spring boot设置双数据源，但它看起来比较初想的要难得多，

尝试按照大量的教程和指南进行操作，但不断收到我的回购错误。

应用程序属性

# Primary DataSource
datasource.primary.url=url
datasource.primary.username=user
datasource.primary.password=pw
datasource.primary.driver-class-name=com.microsoft.sqlserver.jdbc.SQLServerDriver

# Secondary DataSource
datasource.secondary.url=url
datasource.secondary.username=user
datasource.secondary.password=pw
datasource.secondary.driver-class-name=com.microsoft.sqlserver.jdbc.SQLServerDriver

# hibernate strategy (create/update)
spring.jpa.hibernate.ddl-auto=update

# name strategy
spring.jpa.hibernate.naming.physical-strategy=org.hibernate.boot.model.naming.PhysicalNamingStrategyStandardImpl

第一个db config 

    package com.anders.cphbusiness.db;

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

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

    @Configuration
    @EnableTransactionManagement
    @EnableJpaRepositories(
            basePackages = {"com.anders.cphbusiness.repositories"},
            entityManagerFactoryRef = "primaryEM")

    public class LoadDataSourceConfig {
        @Bean(name = "primaryDS")
        @Primary
        @ConfigurationProperties(prefix = "datasource.primary")
        public DataSource loadingDataSource() {
            return DataSourceBuilder.create().build();
        }

        @PersistenceContext(unitName = "primaryPU")
        @Primary
        @Bean(name = "primaryEM")
        public LocalContainerEntityManagerFactoryBean loadingEntityManagerFactory(
                EntityManagerFactoryBuilder builder, @Qualifier("primaryDS") DataSource primaryDS) {
            return builder
                    .dataSource(primaryDS)
                    .persistenceUnit("primaryPU")
                    .packages("com.anders.cphbusiness.entitiesModel")
                    .build();
        }

        @Primary
        @Bean(name = "primaryTM")
        public PlatformTransactionManager transactionManager(
                @Qualifier("primaryEM") EntityManagerFactory entityManagerFactory) {
            return new JpaTransactionManager(entityManagerFactory);
        }

    }

第二次db config 

package com.anders.cphbusiness.db;

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

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

@Configuration
@EnableTransactionManagement
@EnableJpaRepositories(
        basePackages = "com.anders.cphbusiness.secondRepo",
        entityManagerFactoryRef = "secondaryEM",
        transactionManagerRef = "secondaryTransactionManager")

public class StoreDataSourceConfig {

    @Bean(name = "secondaryDS")
    @ConfigurationProperties(prefix = "datasource.secondary")
    public DataSource storingDataSource() {
        return DataSourceBuilder.create().build();
    }

    @PersistenceContext(unitName = "secondaryPU")
    @Bean(name = "secondaryEM")
    public LocalContainerEntityManagerFactoryBean storingEntityManagerFactory(
            EntityManagerFactoryBuilder builder, @Qualifier("secondaryDS") DataSource secondaryDS) {
        return builder
                .dataSource(secondaryDS)
                .packages("com.anders.cphbusiness.storingModel")
                .persistenceUnit("secondaryPU")
                .build();
    }

    @Bean(name = "secondaryTM")
    public PlatformTransactionManager secondaryTransactionManager(
            @Qualifier("secondaryEM") EntityManagerFactory secondaryEM) {
        return new JpaTransactionManager(secondaryEM);
    }
}

回购示例

package com.anders.cphbusiness.repositories;

import com.anders.cphbusiness.entitiesModel.WagerBoard;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.stereotype.Repository;

import javax.persistence.PersistenceContext;

@Repository
@PersistenceContext(name = "primaryEM")
public interface WagerBoardRepo extends JpaRepository<WagerBoard, String> {

}

storeDbEntRepo：

package com.anders.cphbusiness.secondRepo;

import com.anders.cphbusiness.entitiesModel.WagerBoard;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.stereotype.Repository;

import javax.persistence.PersistenceContext;

@Repository
@PersistenceContext(name = "secondaryEM")
public interface StoreDbEntRepo extends JpaRepository<WagerBoard, String> {

}

错误

2017-02-07 10:57:54.222 ERROR 7176 --- [           main] o.s.boot.SpringApplication               : Application startup failed

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'storeDbEntRepo': Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: Not a managed type: class com.anders.cphbusiness.entitiesModel.WagerBoard
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1628) ~[spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:555) ~[spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483) ~[spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) ~[spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE]
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) ~[spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) ~[spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) ~[spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:742) ~[spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:866) ~[spring-context-4.3.6.RELEASE.jar:4.3.6.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:542) ~[spring-context-4.3.6.RELEASE.jar:4.3.6.RELEASE]
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122) ~[spring-boot-1.5.1.RELEASE.jar:1.5.1.RELEASE]
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:737) [spring-boot-1.5.1.RELEASE.jar:1.5.1.RELEASE]
    at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:370) [spring-boot-1.5.1.RELEASE.jar:1.5.1.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:314) [spring-boot-1.5.1.RELEASE.jar:1.5.1.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1162) [spring-boot-1.5.1.RELEASE.jar:1.5.1.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1151) [spring-boot-1.5.1.RELEASE.jar:1.5.1.RELEASE]
    at com.anders.cphbusiness.DsRngCheckerApplication.main(DsRngCheckerApplication.java:18) [main/:na]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_111]
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_111]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_111]
    at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_111]
    at com.intellij.rt.execution.application.AppMain.main(AppMain.java:147) [idea_rt.jar:na]
Caused by: java.lang.IllegalArgumentException: Not a managed type: class com.anders.cphbusiness.entitiesModel.WagerBoard
    at org.hibernate.jpa.internal.metamodel.MetamodelImpl.managedType(MetamodelImpl.java:210) ~[hibernate-entitymanager-5.0.11.Final.jar:5.0.11.Final]
    at org.springframework.data.jpa.repository.support.JpaMetamodelEntityInformation.<init>(JpaMetamodelEntityInformation.java:70) ~[spring-data-jpa-1.11.0.RELEASE.jar:na]
    at org.springframework.data.jpa.repository.support.JpaEntityInformationSupport.getEntityInformation(JpaEntityInformationSupport.java:67) ~[spring-data-jpa-1.11.0.RELEASE.jar:na]
    at org.springframework.data.jpa.repository.support.JpaRepositoryFactory.getEntityInformation(JpaRepositoryFactory.java:152) ~[spring-data-jpa-1.11.0.RELEASE.jar:na]
    at org.springframework.data.jpa.repository.support.JpaRepositoryFactory.getTargetRepository(JpaRepositoryFactory.java:99) ~[spring-data-jpa-1.11.0.RELEASE.jar:na]
    at org.springframework.data.jpa.repository.support.JpaRepositoryFactory.getTargetRepository(JpaRepositoryFactory.java:81) ~[spring-data-jpa-1.11.0.RELEASE.jar:na]
    at org.springframework.data.repository.core.support.RepositoryFactorySupport.getRepository(RepositoryFactorySupport.java:199) ~[spring-data-commons-1.13.0.RELEASE.jar:na]
    at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.initAndReturn(RepositoryFactoryBeanSupport.java:277) ~[spring-data-commons-1.13.0.RELEASE.jar:na]
    at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.afterPropertiesSet(RepositoryFactoryBeanSupport.java:263) ~[spring-data-commons-1.13.0.RELEASE.jar:na]
    at org.springframework.data.jpa.repository.support.JpaRepositoryFactoryBean.afterPropertiesSet(JpaRepositoryFactoryBean.java:101) ~[spring-data-jpa-1.11.0.RELEASE.jar:na]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1687) ~[spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1624) ~[spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE]
    ... 21 common frames omitted

1 个答案:

答案 0 :(得分：1)

您的主要问题是：not a managed type: class com.anders.cphbusiness.entitiesModel.WagerBoard

您的StoreDbEntRepo正在使用＆＃34; secondaryEM＆＃34;，但正在使用WagerBoard实体创建回购。

WagerBoard实体属于entitiesModel包。如果要将该实体用于StoreDbEntRepo，则需要扫描EntityManager中的正确包，从

进行更新 
.packages("com.anders.cphbusiness.storingModel")

到

.packages("com.anders.cphbusiness.storingModel","com.anders.cphbusiness.entitiesModel").

但是，如果您不这样做，请使用属于storedModel包的实体来创建StoreDbEntRepo。

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