NoClassDefFoundExpetion: javax/PersistenceContext和Hibernate

Question

我对春天很陌生。我从javapoint那里学习javapoint。在从javapoint和春季医生学习了一些关于spring的基本知识之后，我转向使用spring学习hibernate，但在第一次尝试(例如)中，我使用了expception：NoClassDefFoundExpetion: javax/persistence/PersistenceContext。为了解决这个异常，我在这和这上搜索并查找类似的情况(及其解决方案)，但没有任何帮助。

Here是我的异常的完整stacktrace:

    Exception in thread "main" org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.context.annotation.internalPersistenceAnnotationProcessor': Instantiation of bean failed; nested exception is java.lang.NoClassDefFoundError: javax/persistence/PersistenceContext
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:1105)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1050)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:510)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)
    at org.springframework.context.support.PostProcessorRegistrationDelegate.registerBeanPostProcessors(PostProcessorRegistrationDelegate.java:207)
    at org.springframework.context.support.AbstractApplicationContext.registerBeanPostProcessors(AbstractApplicationContext.java:697)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:526)
    at org.springframework.context.annotation.AnnotationConfigApplicationContext.<init>(AnnotationConfigApplicationContext.java:84)
    at test.Test.main(Test.java:15)
Caused by: java.lang.NoClassDefFoundError: javax/persistence/PersistenceContext
    at org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor.<clinit>(PersistenceAnnotationBeanPostProcessor.java:172)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
    at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:142)
    at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:89)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:1098)
    ... 12 more

我使用的是eclipse-neon IDE、spring-framework 4.3.2 RELEASE、Hibernate-5.2.2 Final和Oracle 10G(数据库).There是我的数据库中的一个学生表，有4-5个条目。此外，我编写了spring代码，使用简单(控制台) java project和，而不是使用任何构建工具的。Here是我目前使用的完整代码和库列表：

Student.java

public class Student {

    private Integer rollNo;
    private String name;
    /**
     * @param rollNo
     * @param name
     */
    public Student(Integer rollNo, String name) {
        super();
        this.rollNo = rollNo;
        this.name = name;
    }

//Getter and setter ....

StudentDAO.java

public class StudentDAO {

    private HibernateTemplate hibernateTemplate;

    public StudentDAO(HibernateTemplate hibernateTemplate) {
        this.hibernateTemplate = hibernateTemplate;

    }

    public void setHibernateTemplate(HibernateTemplate template) {
        this.hibernateTemplate = template;
    }

    public void saveStudent(Student student) {
        hibernateTemplate.save(student);
    }

    public List<Student> readAll() {
        return hibernateTemplate.loadAll(Student.class);
    }
}

我使用的是基于java注释的配置，所以我的AppConfig.java是：

@Configuration
public class AppConfig {

    @Bean
    public DriverManagerDataSource dataSource() {
        DriverManagerDataSource dataSource = new DriverManagerDataSource("jdbc:oracle:thin:@localhost:1521/xe", "user", "password");
        dataSource.setDriverClassName("oracle.jdbc.driver.OracleDriver");
        return dataSource;
    }

    @Bean 
    public LocalSessionFactoryBean sessionFactoryBean() {
        LocalSessionFactoryBean bean = new LocalSessionFactoryBean();
        bean.setDataSource(dataSource());
        bean.setMappingResources("xml/student.hbm.xml");
        Properties prop = new Properties();
        prop.setProperty("hibernate.dialect", "org.hibernate.dialect.Oracle9Dialect");
        prop.setProperty("hibernate.hbm2ddl.auto", "update");
        prop.setProperty("hibernate.show_sql", "true");
        bean.setHibernateProperties(prop);
        return bean;
    }

    @Bean
    public HibernateTemplate hibernateTemplate() {
        HibernateTemplate template = new HibernateTemplate((SessionFactory) sessionFactoryBean());
        return template;
    }

    @Bean
    public StudentDAO DAO() {
        return new StudentDAO(hibernateTemplate());
    }

}

Student.hbm.xml XML文件：

<?xml version='1.0' encoding='UTF-8'?>  
<!DOCTYPE hibernate-mapping PUBLIC  
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"  
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">

<hibernate-mapping>
                <class name="bean.Student" table="student">
                                <rollNo name="rollNo">
                                                <generator class="assigned"></generator>
                                </rollNo>
                                <property name="name"></property>
                </class>

</hibernate-mapping>

这是我的Main-Method类

public class Test {

    public static void main(String[] args) {
            ApplicationContext context = new AnnotationConfigApplicationContext(AppConfig.class);
            StudentDAO dao = context.getBean(StudentDAO.class);
            List<Student> list = dao.readAll();
            for(Student s: list) 
                System.out.println(s);
    }

}

下面是我在我的项目中包含的自由主义者列表(带有jar文件)：

弹簧

​

​

HIBERNATE

​

​

Commons 和ORALCE 10G驱动程序

​

还有一些，其他的

​

如何解决上面提到的异常，我必须添加/删除哪个library，或者我还可以尝试解决什么问题。为长期的问题感到遗憾

示例参考

此示例基于源代码，可在javapoint上获得。

Answer 1

我在我的例子中做了一些小小的改变。我没有使用AppConfig.java，而是使用了ApplicationContext.xml。这是文件的代码

<?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:p="http://www.springframework.org/schema/p"
                xsi:schemaLocation="http://www.springframework.org/schema/beans  
        http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">


                <bean id="dataSource" class="org.apache.commons.dbcp2.BasicDataSource">
                                <property name="driverClassName" value="oracle.jdbc.driver.OracleDriver"></property>
                                <property name="url" value="jdbc:oracle:thin:@localhost:1521:xe"></property>
                                <property name="username" value="sachin"></property>
                                <property name="password" value="sachin476"></property>
                </bean>

                <bean id="mysessionFactory"
                                class="org.springframework.orm.hibernate5.LocalSessionFactoryBean">
                                <property name="dataSource" ref="dataSource"></property>

                                <property name="mappingResources">
                                                <list>
                                                                <value>student.hbm.xml</value>
                                                </list>
                                </property>

                                <property name="hibernateProperties">
                                                <props>
                                                                <prop key="hibernate.dialect">org.hibernate.dialect.Oracle9Dialect
                                                                </prop>
                                                                <prop key="hibernate.hbm2ddl.auto">update</prop>
                                                                <prop key="hibernate.show_sql">true</prop>

                                                </props>
                                </property>
                </bean>

                <bean id="template" class="org.springframework.orm.hibernate5.HibernateTemplate">
                                <property name="sessionFactory" ref="mysessionFactory"></property>
                </bean>

                <bean id="d" class="bean.dao.StudentDao">
                                <property name="template" ref="template"></property>
                </bean>
</beans>  

并添加了两个更多的 jar文件：

>commons-dbcp2-2.1.1.jar
>commons-pool2-2.4.2.jar

对于BasicDataSource类。

现在它给了我Exception:

Exception in thread "main" org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'mysessionFactory' defined in class path resource [xml/ApplicationContext.xml]: Initialization of bean failed; nested exception is java.lang.NoClassDefFoundError: org/hibernate/SessionFactory
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:553)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:757)
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:861)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:541)
    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139)
    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:83)
    at test.Test.main(Test.java:15)
Caused by: java.lang.NoClassDefFoundError: org/hibernate/SessionFactory
    at java.lang.Class.getDeclaredMethods0(Native Method)
    at java.lang.Class.privateGetDeclaredMethods(Class.java:2701)
    at java.lang.Class.privateGetPublicMethods(Class.java:2902)
    at java.lang.Class.getMethods(Class.java:1615)
    at org.springframework.beans.ExtendedBeanInfoFactory.supports(ExtendedBeanInfoFactory.java:54)
    at org.springframework.beans.ExtendedBeanInfoFactory.getBeanInfo(ExtendedBeanInfoFactory.java:46)
    at org.springframework.beans.CachedIntrospectionResults.<init>(CachedIntrospectionResults.java:270)
    at org.springframework.beans.CachedIntrospectionResults.forClass(CachedIntrospectionResults.java:189)
    at org.springframework.beans.BeanWrapperImpl.getCachedIntrospectionResults(BeanWrapperImpl.java:173)
    at org.springframework.beans.BeanWrapperImpl.getLocalPropertyHandler(BeanWrapperImpl.java:226)
    at org.springframework.beans.BeanWrapperImpl.getLocalPropertyHandler(BeanWrapperImpl.java:63)
    at org.springframework.beans.AbstractNestablePropertyAccessor.getPropertyHandler(AbstractNestablePropertyAccessor.java:725)
    at org.springframework.beans.AbstractNestablePropertyAccessor.isWritableProperty(AbstractNestablePropertyAccessor.java:557)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1483)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1226)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:543)
    ... 11 more

但是我窥探到了hibernate-core-5.2.2-Final.jar，它在org.hibernate包中定义了SessionFectory.class，即有名为org.hibernate.SessionFactory.class的类条目。现在我想知道为什么会有这样的例外

在谷歌上搜索了很多次之后，我发现hibernate 5不支持oracle10g驱动程序。所以我已经把ojdbc14.jar更新为ojdbc6.jar了，它对我很有用

Answer 2

如前所述，由于2.1.是jpa支持的hibernate4.3+版本，所以这里升级了hibernate jpa-jar