警告: Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'studentController': Unsatisfied dependency expressed through field 'studentService'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'studentService': Unsatisfied dependency expressed through field 'studentDAO'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'studentDAO': Injection of resource dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in class path resource [applicationContext.xml]: Cannot resolve reference to bean 'dataSource' while setting bean property 'dataSource'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataSource' defined in class path resource [applicationContext.xml]: Error setting property values; nested exception is org.springframework.beans.PropertyBatchUpdateException; nested PropertyAccessExceptions (1) are:
PropertyAccessException 1: org.springframework.beans.MethodInvocationException: Property 'driverClassName' threw exception; nested exception is java.lang.IllegalStateException: Could not load JDBC driver class [com.mysql.jdbc.Driver]
下面说Could not load JDBC driver class [com.mysql.jdbc.Driver]
可能是你的mysql连接的包没有导进来
1.在项目properties->buildPath 的library中看看有没有mysql-connector-java-x.x.x-bin.jar
2.如果没有就下载mysql-connector-java-x.x.x-bin.jar
3. properties->buildPath 的library，在“库”选项卡中，选择“添加外部JAR”，找到下载的mysql-connector-java-5.1.22-bin.jar文件，将其添加进项目。
注意 Error creating bean with name 'studentController': Unsatisfied dependency expressed through field 'studentService'
意思是 通过现场的studentdao表示不满的依赖 由于Struts2+Spring+Hibernate，利用Spring注解进行注入，但是需要扫描基本包下面的接口
和类，**applicationContext.xml** 文件中没有配置 ,另外Dao中的属性没有设置好 依赖注入也没有成功，可以看看配置的地方，希望能給你帮助
数据库驱动类找不到，导致注入datasource数据源失败，
导致dao层注入失败，
导致service层失败，
导致controller层失败，
导致Spring容器注入Bean过程失败。
完毕！！！