如何配置jpa-config.xml文件，使entityManageFactory能够同时自动扫描两个包?

Question

我试图将一个库集成到另一个库，以下代码是jpa-config.xml中的内容:

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
    <bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
        <property name="entityManagerFactory" ref="entityManagerFactory" />
    </bean>
    <bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
        <property name="packagesToScan" value="com.example1" />
        <property name="persistenceProviderClass" value="org.eclipse.persistence.jpa.PersistenceProvider" />
        <property name="dataSource" ref="dataSource" />
        <property name="jpaVendorAdapter" ref="jpaAdapter" />
        <property name="jpaPropertyMap">
            <map>
                <entry key="eclipselink.weaving" value="false" />
                <entry key="eclipselink.logging.level" value="INFO" />
                <entry key="eclipselink.logging.level.sql" value="INFO" />
                <entry key="eclipselink.cache.shared.default" value="false" />
            </map>
        </property>
    </bean>
</beans>

我想知道我是否可以这样做:

<property name="packagesToScan">
    <list>
        <value>com.example1</value>
        <value>com.example2</value>
    </list>
</property>

Answer 1

您可以在下面指定多个要扫描的包(包含在您的问题中):

<property name="packagesToScan">
   <list>
     <value>com.example1</value>
     <value>com.example2</value>
  </list>
</property>

packagesToScan属性用于xml较少的配置。没有persistence . xml…当使用持久性xml时，它遵循JPA规范。