Spring+Hibernate功能开发过程碰到的诸多难题！(一)

最近学了Spring之后，想Hibernate来连接数据库，整合过程中碰到了诸多难题！

一开始百度，谷歌了很多资料，始终无法解决问题，

很是懊恼，觉得自己运气怎么这么背，最后，自己一个一个调了出来，心情阔朗，

现将过程写下来，

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beta版的hibernate，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]: Invocation of init method failed; nested exception is java.lang.NoClassDefFoundError: net/sf/ehcache/CacheException
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: net/sf/ehcache/CacheException
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: net/sf/ehcache/CacheException
Caused by:
java.lang.NoClassDefFoundError: net/sf/ehcache/CacheException

甚是苦恼，接下来我下了个ehcache-2.4.5-distribution.tar.gz，导入了ehcache-core-2.4.5.jar，

又运行了一下，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: 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]: Invocation of init method failed; 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]: Invocation of init method failed; nested exception is java.lang.NoClassDefFoundError: org/slf4j/LoggerFactory
Caused by:
java.lang.NoClassDefFoundError: org/slf4j/LoggerFactory

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

又运行了一下，这次很顺利，一次通过，

yes,可是我想用最新的hibernate版本,于是我下了个hibernate最新版的,

又出现了些问题,

详细请看Spring+Hibernate功能开发过程碰到的诸多难题！(二)