JPA Hibernate整合错误~

JPA配置<?xml version="1.0"?>
<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_1_0.xsd" version="1.0">
  <persistence-unit name="library" transaction-type="RESOURCE_LOCAL">
   <provider>org.hibernate.ejb.HibernatePersistence</provider>
<properties>
         <property name="hibernate.dialect" value="org.hibernate.dialect.MySQL5Dialect"/>
         <property name="hibernate.connection.driver_class" value="org.gjt.mm.mysql.Driver"/>
         <property name="hibernate.connection.username" value="root"/>
         <property name="hibernate.connection.password" value="123456"/>
         <property name="hibernate.connection.url" value="jdbc:mysql://localhost:3306/library?useUnicode=true&amp;characterEncoding=UTF-8"/>

         <property name="hibernate.max_fetch_depth" value="3"/>
         <property name="hibernate.hbm2ddl.auto" value="update"/>
     <property name="hibernate.jdbc.fetch_size" value="3"/>
     <property name="hibernate.jdbc.batch_size" value="10"/>
     <property name="hibernate.show_sql" value="true"/>
     <property name="hibernate.format_sql" value="false"/>
      </properties>
  </persistence-unit>
</persistence>Spring  配置<context:component-scan base-package="edu.jmu"/>
  
  <bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalEntityManagerFactoryBean">
      <property name="persistenceUnitName" value="library"/>
  </bean>    <bean id="txManager" class="org.springframework.orm.jpa.JpaTransactionManager">
   <property name="entityManagerFactory" ref="entityManagerFactory"/>
  </bean>
  
  <tx:annotation-driven transaction-manager="txManager"/>
@Entity
public class User implements Serializable{
/**
 * 
 */
private static final long serialVersionUID = -2491807508669383375L;
private int id;
private String name;
private String password;
private Set<BorrowBook> borrowBooks;

@Id
@GeneratedValue(strategy = GenerationType.AUTO)
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
@Column(length = 10)
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
@Column(length = 10)
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
@OneToMany(cascade={CascadeType.PERSIST,CascadeType.MERGE},mappedBy="user",fetch = FetchType.LAZY )
public Set<BorrowBook> getBorrowBooks() {
return borrowBooks;
}
public void setBorrowBooks(Set<BorrowBook> borrowBooks) {
this.borrowBooks = borrowBooks;
}

}
package edu.jmu.bean;import java.util.Date;import javax.persistence.Column;
import javax.persistence.FetchType;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.ManyToOne;
import javax.persistence.OneToOne;
import javax.persistence.Temporal;
import javax.persistence.TemporalType;public class BorrowBook implements java.io.Serializable{
/**
 * 
 */
private static final long serialVersionUID = -6773524592176308024L;
private int id;
private User user;
private int bookId;
private Date date;

private Book book;

@Id
@GeneratedValue(strategy = GenerationType.AUTO)
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}

@Column()
public int getBookId() {
return bookId;
}
public void setBookId(int bookId) {
this.bookId = bookId;
}
@Temporal(TemporalType.DATE)
public Date getDate() {
return date;
}
public void setDate(Date date) {
this.date = date;
}

@ManyToOne(fetch=FetchType.LAZY)
@JoinColumn(name = "userId", nullable = false)
public User getUser() {
return user;
}
public void setUser(User user) {
this.user = user;
}

public Book getBook() {
return book;
}
public void setBook(Book book) {
this.book = book;
}
}

解决方案 »

  1.   

    log4j:WARN No appenders could be found for logger (org.springframework.context.support.ClassPathXmlApplicationContext).
    log4j:WARN Please initialize the log4j system properly.
    2011-10-25 11:47:51 org.hibernate.cfg.annotations.Version <clinit>
    信息: Hibernate Annotations 3.4.0.GA
    2011-10-25 11:47:51 org.hibernate.cfg.Environment <clinit>
    信息: Hibernate 3.3.1.GA
    2011-10-25 11:47:51 org.hibernate.cfg.Environment <clinit>
    信息: hibernate.properties not found
    2011-10-25 11:47:51 org.hibernate.cfg.Environment buildBytecodeProvider
    信息: Bytecode provider name : javassist
    2011-10-25 11:47:51 org.hibernate.cfg.Environment <clinit>
    信息: using JDK 1.4 java.sql.Timestamp handling
    2011-10-25 11:47:51 org.hibernate.annotations.common.Version <clinit>
    信息: Hibernate Commons Annotations 3.1.0.GA
    2011-10-25 11:47:51 org.hibernate.ejb.Version <clinit>
    信息: Hibernate EntityManager 3.4.0.GA
    2011-10-25 11:47:51 org.hibernate.cfg.AnnotationBinder bindClass
    信息: Binding entity from annotated class: edu.jmu.bean.Book
    2011-10-25 11:47:51 org.hibernate.cfg.annotations.EntityBinder bindTable
    信息: Bind entity edu.jmu.bean.Book on table Book
    2011-10-25 11:47:51 org.hibernate.cfg.AnnotationBinder bindClass
    信息: Binding entity from annotated class: edu.jmu.bean.User
    2011-10-25 11:47:51 org.hibernate.cfg.annotations.EntityBinder bindTable
    信息: Bind entity edu.jmu.bean.User on table User
    出现错误了~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
    org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userServiceBean': Injection of persistence fields failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [applicationContext.xml]: Invocation of init method failed; nested exception is javax.persistence.PersistenceException: [PersistenceUnit: library] Unable to configure EntityManagerFactory
    at org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor.postProcessAfterInstantiation(PersistenceAnnotationBeanPostProcessor.java:311)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:959)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:472)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409)
    at java.security.AccessController.doPrivileged(Native Method)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:429)
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:728)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:380)
    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139)
    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:83)
    at junit.test.UserServiceBeanTest.setUpBeforeClass(UserServiceBeanTest.java:20)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
    at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
    at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:27)
    at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:49)
    at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
    Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [applicationContext.xml]: Invocation of init method failed; nested exception is javax.persistence.PersistenceException: [PersistenceUnit: library] Unable to configure EntityManagerFactory
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1338)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:473)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409)
    at java.security.AccessController.doPrivileged(Native Method)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164)
    at org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor.findDefaultEntityManagerFactory(PersistenceAnnotationBeanPostProcessor.java:507)
    at org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor.findEntityManagerFactory(PersistenceAnnotationBeanPostProcessor.java:473)
    at org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor$PersistenceElement.resolveEntityManager(PersistenceAnnotationBeanPostProcessor.java:599)
    at org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor$PersistenceElement.getResourceToInject(PersistenceAnnotationBeanPostProcessor.java:570)
    at org.springframework.beans.factory.annotation.InjectionMetadata$InjectedElement.inject(InjectionMetadata.java:180)
    at org.springframework.beans.factory.annotation.InjectionMetadata.injectFields(InjectionMetadata.java:105)
    at org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor.postProcessAfterInstantiation(PersistenceAnnotationBeanPostProcessor.java:308)
    ... 31 more
    Caused by: javax.persistence.PersistenceException: [PersistenceUnit: library] Unable to configure EntityManagerFactory
    at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:265)
    at org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory(HibernatePersistence.java:125)
    at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:78)
    at org.springframework.orm.jpa.LocalEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalEntityManagerFactoryBean.java:91)
    at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:291)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1369)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1335)
    ... 47 more
    Caused by: org.hibernate.AnnotationException: Use of @OneToMany or @ManyToMany targeting an unmapped class: edu.jmu.bean.User.borrowBooks[edu.jmu.bean.BorrowBook]
    at org.hibernate.cfg.annotations.CollectionBinder.bindManyToManySecondPass(CollectionBinder.java:1071)
    at org.hibernate.cfg.annotations.CollectionBinder.bindStarToManySecondPass(CollectionBinder.java:602)
    at org.hibernate.cfg.annotations.CollectionBinder$1.secondPass(CollectionBinder.java:543)
    at org.hibernate.cfg.CollectionSecondPass.doSecondPass(CollectionSecondPass.java:66)
    at org.hibernate.cfg.Configuration.secondPassCompile(Configuration.java:1163)
    at org.hibernate.cfg.AnnotationConfiguration.secondPassCompile(AnnotationConfiguration.java:329)
    at org.hibernate.cfg.Configuration.buildMappings(Configuration.java:1148)
    at org.hibernate.ejb.Ejb3Configuration.buildMappings(Ejb3Configuration.java:1226)
    at org.hibernate.ejb.EventListenerConfigurator.configure(EventListenerConfigurator.java:173)
    at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:854)
    at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:191)
    at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:253)
    ... 53 more
      

  2.   

    具体的就是下面这几个错误了 org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userServiceBean': Injection of persistence fields failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [applicationContext.xml]: Invocation of init method failed; nested exception is javax.persistence.PersistenceException: [PersistenceUnit: library] Unable to configure EntityManagerFactoryCaused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [applicationContext.xml]: Invocation of init method failed; nested exception is javax.persistence.PersistenceException: [PersistenceUnit: library] Unable to configure EntityManagerFactory
    Caused by: javax.persistence.PersistenceException: [PersistenceUnit: library] Unable to configure EntityManagerFactory
    Caused by: org.hibernate.AnnotationException: Use of @OneToMany or @ManyToMany targeting an unmapped class: edu.jmu.bean.User.borrowBooks[edu.jmu.bean.BorrowBook]
      

  3.   

    。每次都是发帖之后 突然发现 问题 我晕了~~原来是刚刚修改东西的时候  吧 Entity 注解给删除了~~
    所以找不到 我的那个 BorrowBook 实体  所以报错了~~~  送分中~~~~