你好我是hibernate的新手，我正在使用它与Spring框架，我得到一个错误，我无法弄明白。我认为它在我的服务或我的DAO文件
HTTP状态500 - 内部服务器错误类型异常报告
消息处理程序处理失败;嵌套异常是 java.lang.ExceptionInInitializerError
description服务器遇到阻止它的内部错误 满足要求。
例外
org.springframework.web.util.NestedServletException：处理程序 处理失败;嵌套异常是 java.lang.ExceptionInInitializerError org.springframework.web.servlet.DispatcherServlet.triggerAfterCompletionWithError （DispatcherServlet.java:1284） org.springframework.web.servlet.DispatcherServlet.doDispatch （DispatcherServlet.java:965） org.springframework.web.servlet.DispatcherServlet.doService （DispatcherServlet.java:876） org.springframework.web.servlet.FrameworkServlet.processRequest （FrameworkServlet.java:961） org.springframework.web.servlet.FrameworkServlet.doGet （FrameworkServlet.java:852)javax.servlet.http.HttpServlet.service （HttpServlet.java:634） org.springframework.web.servlet.FrameworkServlet.service （FrameworkServlet.java:837)javax.servlet.http.HttpServlet.service （HttpServlet.java:741） org.apache.tomcat.websocket.server.WsFilter.doFilter （WsFilter.java:53）母亲原因
java.lang.ExceptionInInitializerError util.HibernateUtil。 （HibernateUtil.java:29）DAO.RoomDAO.getAllroom（RoomDAO.java:19） service.RoomService.getAllroom（RoomService.java:21） controller.HomepageController.roomlist （HomepageController.java:31） 我的dispatcher-servlet.xml
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd">
<!-- declaring base package -->
<context:annotation-config />
<context:component-scan base-package="controller" />
<context:component-scan base-package="org.jasig.portlet" />
<!-- adding view resolver to show jsp's on browser -->
<bean id="viewResolver"
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/" />
<property name="suffix" value=".jsp" />
</bean>
<bean id="rDAO" class="DAO.RoomDAO" />
<bean id="rService" class="service.RoomService" />
<mvc:resources mapping="/resources/**" location="/resources/" cache-period="31556926"/>
<mvc:annotation-driven />
</beans>
我的hibernate.cfg.xml
<hibernate-configuration> <session-factory>
<property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
<property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="hibernate.connection.url">jdbc:mysql://localhost:3306/project</property>
<property name="hibernate.connection.username">root</property>
<property name="hibernate.connection.password">1234</property>
<property name="show_sql">true</property>
<mapping resource="model/User.hbm.xml"/>
<mapping resource="model/Calendars.hbm.xml"/>
<mapping resource="model/Notifications.hbm.xml"/>
<mapping resource="model/Room.hbm.xml"/>
<mapping resource="model/NotificationEvents.hbm.xml"/>
<mapping resource="model/Events.hbm.xml"/> </session-factory> </hibernate-configuration>
我的RoomDAO文件
> public class RoomDAO {
> public ArrayList<Room> getAllroom(){
> Session session = HibernateUtil.getSessionFactory().getCurrentSession();
> Transaction transaction = session.beginTransaction();
> Query query = (Query)session.createQuery("from room");
> ArrayList<Room> list = (ArrayList<Room>) query.list();
> transaction.commit();
> return list; }
> public static void main(String[] args) {
> System.out.println(new RoomDAO().getAllroom().size());
> } }
我的主页控制器
@Controller
@RequestMapping(value="/home")
public class HomepageController {
@Autowired
RoomService roomservice;
@RequestMapping(value="/index")
public String index(ModelMap mm){
return "jsp/index";
}
@RequestMapping(value="/roomlist")
public String roomlist(ModelMap mm){
mm.put("listRoom",roomservice.getAllroom());
return "jsp/roomlist";
}
}
我的RoomService.java
public class RoomService {
@Autowired
RoomDAO RoomDAO;
public ArrayList<Room> getAllroom(){
return RoomDAO.getAllroom();
}
}
我的web.xml
<web-app version="3.1" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd">
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/applicationContext.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<servlet>
<servlet-name>dispatcher</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>2</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>dispatcher</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<session-config>
<session-timeout>
30
</session-timeout>
</session-config>
<welcome-file-list>
<welcome-file>redirect.jsp</welcome-file>
</welcome-file-list>
</web-app>
我的HibernateUtil.java
public class HibernateUtil {
private static final SessionFactory sessionFactory;
static {
try {
// Create the SessionFactory from standard (hibernate.cfg.xml)
// config file.
sessionFactory = new AnnotationConfiguration().configure().buildSessionFactory();
} catch (Throwable ex) {
// Log the exception.
System.err.println("Initial SessionFactory creation failed." + ex);
throw new ExceptionInInitializerError(ex);
}
}
public static SessionFactory getSessionFactory() {
return sessionFactory;
}
}
我想在JSP文件中输出的任何数据
<tr>
<c:forEach var="room" items="${listRoom}">
<th scope="row"><c:out value="${room.room_id}"/></th>
<td>
<button type="button" class="btn btn-primary" data-toggle="modal" data-target="#exampleModal">${room.room_name}
</button>
</td>
<td><c:out value="${room.address}"/></td>
<td><c:out value="${room.description}"/></td>
<td><c:out value="${room.device}"/></td>
<td>
<a href="add_room.html" title=""><label class="btn btn-xs btn-success margin-top-1"><span class="fa fa-plus-square" title="add"></span></label></a>
<a href="edit_room.html" title=""><label class="btn btn-xs btn-info margin-top-1"><span class="fa fa-pencil-square-o" title="edit"></span></label></a>
<label class="btn btn-xs btn-danger margin-top-1"><span class="fa fa-times" title="Cancel"></span></label>
</td>
</c:forEach>
</tr>
答案 0 :(得分：0)
应用程序上下文初始化失败。这种失败有几个原因。请将代码推送到github并分享链接。
您是否在web.xml中配置了DispatcherServlet？
您是否在web.xml中为dispaycher-servlet xml文件添加了contextConfigLocation？
验证hibernate.cg.xml是否正在加载？