Spring+JPA+MySQL的配置文件

    一直在整合spring+hibernate，今天整合一下JPA +Spring

    persistence.xml 默认放在 META-INF 目录下

    Xml代码
    <persistence xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://java.sun.com/xml/ns/persistence persistence_1_0.xsd" version="1.0">
    <persistence-unit name="java2000" transaction-type="RESOURCE_LOCAL">
    <provider>org.hibernate.ejb.HibernatePersistence</provider>
    <class>MyClass</class>
    <properties>
    <property name="hibernate.cache.provider_class" value="org.hibernate.cache.EhCacheProvider" />
    <property name="show_sql" value="true" />
    <property name="hibernate.cache.use_second_level_cache" value="true" />
    <property name="hibernate.cache.use_query_cache" value="false" />
    </properties>
    </persistence-unit>
    </persistence>
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    <persistence xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://java.sun.com/xml/ns/persistence persistence_1_0.xsd" version="1.0">
    <persistence-unit name="java2000" transaction-type="RESOURCE_LOCAL">
    <provider>org.hibernate.ejb.HibernatePersistence</provider>
    <class>MyClass</class>
    <properties>
    <property name="hibernate.cache.provider_class" value="org.hibernate.cache.EhCacheProvider" />
    <property name="show_sql" value="true" />
    <property name="hibernate.cache.use_second_level_cache" value="true" />
    <property name="hibernate.cache.use_query_cache" value="false" />
    </properties>
    </persistence-unit>
    </persistence>

    <persistence xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://java.sun.com/xml/ns/persistence persistence_1_0.xsd" version="1.0">
    <persistence-unit name="java2000" transaction-type="RESOURCE_LOCAL">
    <provider>org.hibernate.ejb.HibernatePersistence</provider>
    <class>MyClass</class>
    <properties>
    <property name="hibernate.cache.provider_class" value="org.hibernate.cache.EhCacheProvider" />
    <property name="show_sql" value="true" />
    <property name="hibernate.cache.use_second_level_cache" value="true" />
    <property name="hibernate.cache.use_query_cache" value="false" />
    </properties>
    </persistence-unit>
    </persistence>
     applicationContext.xml

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