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我是 Spring 和 Glassfish 世界的新手。我一直在与使用这些主题的一个应用程序的配置作斗争，但我没有创建应用程序。任何人都可以帮助我吗？

我想创建一个具有一个 persistence.xml、jndi 数据源、通用 dao 配置的应用程序。

谢谢你的帮助！

这是我的代码，但我认为与配置存在一些冲突。

持久性.xml

<?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="spartanPU" transaction-type="JTA">
    <provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>
    <jta-data-source>jdbc/__spartanDS</jta-data-source>

    <class>com.spartan.model.entities.SourceEntity</class>

    <properties>
        <property name="eclipselink.logging.level.sql" value="FINE" />
        <property name="eclipselink.logging.parameters" value="true" />
        <property name="eclipselink.logging.level" value="FINE" />
        <property name="javax.persistence.jdbc.driver" value="com.mysql.jdbc.Driver" />
        <property name="eclipselink.ddl-generation" value="none" />
        <property name="eclipselink.target-database" value="MySQL" />
        <property name="eclipselink.jdbc.native-sql" value="true" />
        <property name="eclipselink.jdbc.cache-statements" value="true" />
    </properties>

</persistence-unit>

dao-bean.xml

<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"
xsi:schemaLocation="
    http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
    http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd
    http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.2.xsd"
    default-lazy-init="true" default-autowire="no">

<tx:annotation-driven />

<bean id="sourceDao" class="com.spartan.model.daos.SourceDao">
    <property name="entityClass" >
        <bean class="com.spartan.model.entities.SourceEntity" />
    </property>
</bean>

应用程序上下文.xml

<?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:jee="http://www.springframework.org/schema/jee"
xmlns:context="http://www.springframework.org/schema/context" 
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="
    http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
    http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd
    http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-3.2.xsd
    http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.2.xsd"
    default-autowire="no">

<tx:annotation-driven transaction-manager="transactionManager" />

<context:annotation-config />

<jee:jndi-lookup id="dataSource" jndi-name="jdbc/__spartanDS" />

<import resource="classpath:com/spartan/model/spring/dao-beans.xml" />    

<bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
    <property name="persistenceXmlLocation" value="classpath:META-INF/persistence.xml" />
    <property name="dataSource" ref="dataSource" />
    <property name="persistenceUnitName" value="spartanPU" />
    <property name="jpaVendorAdapter">
        <bean class="org.springframework.orm.jpa.vendor.EclipseLinkJpaVendorAdapter">
            <property name="showSql" value="true" />
            <property name="generateDdl" value="false" />
            <property name="databasePlatform" value="org.hibernate.dialect.MySQLDialect" />
        </bean>
    </property>
    <property name="jpaDialect">
        <bean class="org.springframework.orm.jpa.vendor.EclipseLinkJpaDialect"/>
    </property>
        <property name="loadTimeWeaver">
            <bean class="org.springframework.instrument.classloading.ReflectiveLoadTimeWeaver"/>
        </property>
</bean>

<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
    <property name="entityManagerFactory" ref="entityManagerFactory" />
</bean>

<bean class="org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor" />

<!-- Exception translation bean post processor -->
<bean class="org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor" />

<bean class="org.springframework.aop.framework.autoproxy.DefaultAdvisorAutoProxyCreator" /> 

<bean class="org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor"/>

BaseDao.java

import java.lang.reflect.ParameterizedType;

import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;

import org.springframework.stereotype.Repository;
import org.springframework.transaction.annotation.Transactional;

@Repository
@Transactional
public abstract class BaseDao<PK, T> implements IBaseDao<PK, T> {

protected T entityClass;

@PersistenceContext 
protected EntityManager entityManager;

@SuppressWarnings({ "unchecked" })
public BaseDao() {
    ParameterizedType genericSuperclass = (ParameterizedType) getClass()
        .getGenericSuperclass();
    this.entityClass = ((T) genericSuperclass.getActualTypeArguments()[0]);
}

@Transactional
public T create(T entity) {
    this.entityManager.persist(entity);
    this.entityManager.flush();
    return entity;
}

public T read(PK id) {
    return null;
}

public T update(T entity) {
    this.entityManager.merge(entity);
    this.entityManager.flush();     
    return entity;
}

public void delete(T entity) {
    this.entityManager.remove(entity);
}

public void setEntityClass(T entityClass) {
    this.entityClass = entityClass;
}

}

实际上，当我尝试保留某些内容时，使用此配置，glassfish 服务器会为我提供下一个堆栈跟踪。

堆栈跟踪

javax.persistence.TransactionRequiredException:
Exception Description: No transaction is currently active
    at org.eclipse.persistence.internal.jpa.transaction.EntityTransactionWrapper.throwCheckTransactionFailedException(EntityTransactionWrapper.java:113)
    at org.eclipse.persistence.internal.jpa.transaction.EntityTransactionWrapper.checkForTransaction(EntityTransactionWrapper.java:50)
    at org.eclipse.persistence.internal.jpa.EntityManagerImpl.checkForTransaction(EntityManagerImpl.java:1776)
    at org.eclipse.persistence.internal.jpa.EntityManagerImpl.flush(EntityManagerImpl.java:780)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:601)
    at org.springframework.orm.jpa.ExtendedEntityManagerCreator$ExtendedEntityManagerInvocationHandler.invoke(ExtendedEntityManagerCreator.java:366)
    at $Proxy329.flush(Unknown Source)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:601)
    at org.springframework.orm.jpa.SharedEntityManagerCreator$SharedEntityManagerInvocationHandler.invoke(SharedEntityManagerCreator.java:241)
    at $Proxy327.flush(Unknown Source)
    at com.spartan.model.daos.BaseDao.create(BaseDao.java:35)
    at com.spartan.web.controllers.MovieController.getMovie(MovieController.java:23)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:601)
    at org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:176)
    at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:440)
    at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:428)
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)
    at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:827)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:668)
    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:770)
    at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1550)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:281)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
    at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:655)
    at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:595)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:161)
    at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:331)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:231)
    at com.sun.enterprise.v3.services.impl.ContainerMapper$AdapterCallable.call(ContainerMapper.java:317)
    at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:195)
    at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:860)
    at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:757)
    at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1056)
    at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:229)
    at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137)
    at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104)
    at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90)
    at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79)
    at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54)
    at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59)
    at com.sun.grizzly.ContextTask.run(ContextTask.java:71)
    at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532)
    at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513)
    at java.lang.Thread.run(Thread.java:722)
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1 回答 1

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我注意到您的配置有几件事

  1. 您有多个<tx:annotation-driven ../>标签，这至少令人困惑
  2. <context:annotation-driven ../>已经暗示PersistenceAnnotationBeanPostProcessor,PersistenceExceptionTranslationPostProcessor和utowiredAnnotationBeanPostProcessor.
  3. DefaultAdvisorAutoProxyCreator也已经存在（您的配置可能会导致代理代理）
  4. 你想要什么 JTA？您的 persistence.xml 给人的印象是您想要 JTA，但是您没有配置 a JtaTransactionManager，您有一个JpaTransactionManager用于本地事务的。从 persistence.xml 中删除 JTA 或配置 JtaTransactionManager。
  5. 当您需要 JtaTransaction 时，您需要设置jtaDataSource属性，LocalContainerEntityManagerFactoryBean并且您可能还需要为 EclipseLink 进行一些额外的配置。
  6. 在您的 dao 中不要调用 flush，persist 应该已经直接进入数据库，旁边的刷新通常应该留给 ORM 提供程序本身。
于 2013-09-14T08:45:34.607 回答