Spring+Hibernate功能开发过程碰到的诸多难题！(二)

Spring整合Hibernate来连接数据库(二)，过程中碰到了诸多难题！

现想将过程写下来，

1、第一个异常，

ERROR - Context initialization failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'loginAction' defined in ServletContext resource [/WEB-INF/applicationContext.xml]: Cannot resolve reference to bean 'userDAO' while setting bean property 'userDAO'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userDAO' defined in ServletContext resource [/WEB-INF/applicationContext.xml]: Cannot resolve reference to bean 'sessionFactory' while setting bean property 'sessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in ServletContext resource [/WEB-INF/applicationContext.xml]: Invocation of init method failed; nested exception is java.lang.NoClassDefFoundError: org/hibernate/ConnectionReleaseMode
Caused by:
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userDAO' defined in ServletContext resource [/WEB-INF/applicationContext.xml]: Cannot resolve reference to bean 'sessionFactory' while setting bean property 'sessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in ServletContext resource [/WEB-INF/applicationContext.xml]: Invocation of init method failed; nested exception is java.lang.NoClassDefFoundError: org/hibernate/ConnectionReleaseMode
Caused by:
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in ServletContext resource [/WEB-INF/applicationContext.xml]: Invocation of init method failed; nested exception is java.lang.NoClassDefFoundError: org/hibernate/ConnectionReleaseMode
Caused by:
java.lang.NoClassDefFoundError: org/hibernate/ConnectionReleaseMode

这个问题困惑了我很久，原来我到hibernate官网下载的hibernate-3.0.zip里面的hibernate3.jar少了一个class，

之后我重新下了个最新版本的hibernate-distribution-3.6.7.Final-dist.zip，把里面的hibernate3.jar替换了，

可是接下来又出现问题，问题还是跟上面的一样，

接下来我把整个工程复制出来，把工程删了，重新建了一个，

再把原先项目里面的文件复制过来，运行了一下，又出现问题，

2、第二个异常，

ERROR - Context initialization failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'loginAction' defined in ServletContext resource [/WEB-INF/applicationContext.xml]: Cannot resolve reference to bean 'userDAO' while setting bean property 'userDAO'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userDAO' defined in ServletContext resource [/WEB-INF/applicationContext.xml]: Cannot resolve reference to bean 'sessionFactory' while setting bean property 'sessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in ServletContext resource [/WEB-INF/applicationContext.xml]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [org.springframework.orm.hibernate3.LocalSessionFactoryBean]: Constructor threw exception; nested exception is java.lang.NoClassDefFoundError: org/slf4j/LoggerFactory
Caused by:
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userDAO' defined in ServletContext resource [/WEB-INF/applicationContext.xml]: Cannot resolve reference to bean 'sessionFactory' while setting bean property 'sessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in ServletContext resource [/WEB-INF/applicationContext.xml]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [org.springframework.orm.hibernate3.LocalSessionFactoryBean]: Constructor threw exception; nested exception is java.lang.NoClassDefFoundError: org/slf4j/LoggerFactory
Caused by:
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in ServletContext resource [/WEB-INF/applicationContext.xml]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [org.springframework.orm.hibernate3.LocalSessionFactoryBean]: Constructor threw exception; nested exception is java.lang.NoClassDefFoundError: org/slf4j/LoggerFactory
Caused by:
org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [org.springframework.orm.hibernate3.LocalSessionFactoryBean]: Constructor threw exception; nested exception is java.lang.NoClassDefFoundError: org/slf4j/LoggerFactory
Caused by:
java.lang.NoClassDefFoundError: org/slf4j/LoggerFactory

出现错误了，接下来我下个了slf4j-1.6.2.zip，导入了slf4j-api-1.6.2.jar，

运行了一下，哎呀，又出错了，

3、第三个异常

ERROR - Context initialization failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'loginAction' defined in ServletContext resource [/WEB-INF/applicationContext.xml]: Cannot resolve reference to bean 'userDAO' while setting bean property 'userDAO'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userDAO' defined in ServletContext resource [/WEB-INF/applicationContext.xml]: Cannot resolve reference to bean 'sessionFactory' while setting bean property 'sessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in ServletContext resource [/WEB-INF/applicationContext.xml]: Invocation of init method failed; nested exception is java.lang.NoClassDefFoundError: javax/persistence/EntityListeners
Caused by:
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userDAO' defined in ServletContext resource [/WEB-INF/applicationContext.xml]: Cannot resolve reference to bean 'sessionFactory' while setting bean property 'sessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in ServletContext resource [/WEB-INF/applicationContext.xml]: Invocation of init method failed; nested exception is java.lang.NoClassDefFoundError: javax/persistence/EntityListeners
Caused by:
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in ServletContext resource [/WEB-INF/applicationContext.xml]: Invocation of init method failed; nested exception is java.lang.NoClassDefFoundError: javax/persistence/EntityListeners
Caused by:
java.lang.NoClassDefFoundError: javax/persistence/EntityListeners

又出现错误了，接下来我下个了ejb3-persistence.jar.zip，导入了ejb3-persistence.jar，

又运行了一下，哎呀，又出错了，苦恼，

4、第四个异常

Caused by:
org.hibernate.HibernateException: Unable to instantiate default tuplizer [org.hibernate.tuple.entity.PojoEntityTuplizer]

接下来，我下了个javassist-3.11.GA.zip，导入了javassist.jar，

再运行一下，这次很顺利，一次通过，yes，睡觉去...