Question

我有以下持久性

有一段代码：

<?xml version="1.0" encoding="UTF-8"?>
<persistence version="2.1" xmlns="http://xmlns.jcp.org/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence http://xmlns.jcp.org/xml/ns/persistence/persistence_2_1.xsd">
<persistence-unit name="ProcedimientosAlmacenados">
    <jta-data-source>java:/jdbc/DesaAppDS</jta-data-source>
    <properties> 
        <property name="hibernate.show_sql" value="false" />
        <property name="hibernate.format_sql" value="true" />
        <property name="hibernate.dialect" value="org.hibernate.dialect.Oracle10gDialect" />
        <property name="hibernate.hbm2ddl.auto" value="validate" />
        <property name="hibernate.ejb.entitymanager_factory_name" value="ProcedimientosAlmacenados" />
        <property name="hibernate.transaction.jta.platform" value="org.hibernate.service.jta.platform.internal.JBossAppServerJtaPlatform" />
        <property name="hibernate.connection.driver_class" value="oracle.jdbc.driver.OracleDriver"/>
        <property name="openjpa.TransactionMode" value="managed" />
        <property name="openjpa.ConnectionFactoryMode" value="managed" />
        <property name="openjpa.jdbc.DBDictionary" value="db2" />
        <property name="eclipselink.jdbc.batch-writing" value="JDBC"/>
    </properties>
</persistence-unit>
</persistence>

调用持久化跟随

EntityManagerFactory enfactory = Persistence.createEntityManagerFactory("ProcedimientosAlmacenados");
    EntityManager enmanager = enfactory.createEntityManager();

我跳转了以下错误

Caused by: javax.persistence.PersistenceException: Invalid persistence.xml.
Error parsing XML (line-1 : column -1): cvc-elt.1: Cannot find the declaration of element 'persistence'.

请帮帮我!!!

Answer 1

这个问题已经回答here

这是摘要。问题是你混合了JPA 2.0和JPA 2.1表示法

这个

<persistence xmlns="http://xmlns.jcp.org/xml/ns/persistence"
             xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence
                                 http://xmlns.jcp.org/xml/ns/persistence/persistence_2_1.xsd"
  version="2.1">

适用于JPA 2.1或此

<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
                      http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd"
  version="2.0">

对于JPA 2，但不是其混合。

有关详细信息，请参阅http://www.oracle.com/webfolder/technetwork/jsc/xml/ns/persistence/index.html。

Answer 2

你的命名空间声明是错误的。

<persistence xmlns="http://xmlns.jcp.org/xml/ns/persistence"
             xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence
             http://xmlns.jcp.org/xml/ns/persistence/persistence_2_1.xsd"
             version="2.1">
    ...
</persistence>

来源：JSR-338

找不到元素的声明＆＃39;持久性＆＃39;

2 个答案: