具有多租户休眠的 Spring-Data JPA [英] Spring-Data JPA with Multi-Tenancy Hibernate
问题描述
我正在尝试使用自定义 MultiTenantConnectionProvider 使 Spring-Data JPA 与 Hibernate 一起工作.
I am trying to get Spring-Data JPA working with Hibernate with a custom MultiTenantConnectionProvider.
我下面配置中的所有内容似乎都有效.每次尝试调用 Repository 方法时,都会调用我的 MultiTenantConnectionProviderImpl
类.
Everything in my configuration below seems to work. My MultiTenantConnectionProviderImpl
class gets called each time I try to call a Repository method.
主要问题是无法提供租户标识符.Spring-Data 提供的 Repository 接口负责获取 Hibernate Session.
The main problem is that there is no way to provide a tenant identifier. The Repository interfaces provided by Spring-Data take care of getting the Hibernate Session.
有什么办法可以为 Spring-Data 提供租户标识符?或者有什么地方可以拦截 Hibernate Session 的创建,以便我们可以适当地调用sessionFactory.withOptions().tenantIdentifier(itendintifier).openSession();
Is there any way to provide Spring-Data the tenant identifier? Or is there somewhere where we can intercept the creation of the Hibernate Session so we can appropriately call
sessionFactory.withOptions().tenantIdentifier(itendintifier).openSession();
这是我的 Spring 配置 XML 文件.我尽量保持它的基本结构.
Here is my Spring configuration XML file. I tried to keep it as bare-bones as I can.
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:tx="http://www.springframework.org/schema/tx" xmlns:jpa="http://www.springframework.org/schema/data/jpa"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-3.2.xsd http://www.springframework.org/schema/data/jpa http://www.springframework.org/schema/data/jpa/spring-jpa.xsd">
<context:annotation-config/>
<context:component-scan base-package="com.company"/>
<jpa:repositories base-package="com.company.repositories"/>
<bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="packagesToScan" value="com.company.entities"/>
<property name="dataSource" ref="dataSource"/>
<property name="jpaVendorAdapter">
<bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
<property name="showSql" value="true"/>
</bean>
</property>
</bean>
<bean id="transactionManager" class="org.springframework.orm.hibernate4.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory"/>
</bean>
<bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">org.hibernate.dialect.SQLServer2012Dialect</prop>
<prop key="hibernate.format_sql">true</prop>
<prop key="hibernate.multi_tenant_connection_provider">com.company.hibernate.MultiTenantConnectionProviderImpl</prop>
<prop key="hibernate.multiTenancy">DATABASE</prop>
</props>
</property>
</bean>
<tx:annotation-driven transaction-manager="transactionManager"/>
<!--Vendor specific properties here-->
<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="net.sourceforge.jtds.jdbc.Driver"/>
<property name="url" value="jdbc:jtds:sqlserver://localhost:1433/myDatabase"/>
<property name="username" value="username"/>
<property name="password" value="password"/>
</bean>
</beans>
推荐答案
Use CurrentTenantIdentifierResolver
:
<bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<property name="hibernateProperties">
<map>
<entry key="hibernate.dialect" value="org.hibernate.dialect.SQLServer2012Dialect">
<entry key="hibernate.format_sql" value="true">
<entry key="hibernate.multi_tenant_connection_provider" value="com.company.hibernate.MultiTenantConnectionProviderImpl">
<entry key="hibernate.multiTenancy" value="DATABASE">
<!-- tenant resolver as spring bean -->
<entry key="hibernate.tenant_identifier_resolver" value-ref="currentTenantIdentifierResolver"/>
</map>
</property>
</bean>
<bean id="currentTenantIdentifierResolver"
class="com.xxx.CurrentTenantResolver">
</bean>
简单的租户标识符解析器如下所示:
Simple tenant identifier resolver would be like this:
public class CurrentTenantResolver implements CurrentTenantIdentifierResolver {
public String resolveCurrentTenantIdentifier() {
// retrieve tenant from logged in user
User usr = (User) SecurityContextHolder.getContext().getAuthentication().getPrincipal() ;
return usr.getTenantName();
}
public boolean validateExistingCurrentSessions() {
return true;
}
}
记住上面的类是一个 spring bean,所以你可以像普通的 spring bean 一样自动装配任何 spring bean(service/dao).
Remember the above class is a spring bean, so you can autowired any spring bean(service/dao) just like regular spring bean.
每次 spring 需要会话 hibernate 都会从那个 bean 中检索租户标识符.
Every time spring need session hibernate will retrieve the tenant identifier from that bean.
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