SpringMVC+hibernate获取数据报错??

Question

想使用hibernate来获取数据库里的数据,但是浏览器访问的时候 就报错了.eclipse没有提示语法错误,但是控制台报错了.MvcController.java package qiye.web; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.hibernate.Session; import org.hibernate.SessionFactory; import org.hibernate.Transaction; import org.hibernate.cfg.Configuration; import qiye.entity.Service; @Controller public class MvcController { private static SessionFactory sessionFactory; static{ Configuration configuraction = new Configuration().configure(); sessionFactory = configuraction.buildSessionFactory(); } public static Session getSession(){ return sessionFactory.openSession(); } @RequestMapping("/index") public String index(){ Session session = MvcController.getSession(); Service service = (Service)session.get(Service.class, new Integer(1)); System.out.println(service.getTitle()); return "index"; } } 控制台的错误信息 三月 22, 2017 12:05:58 上午 org.apache.catalina.core.ApplicationContext log 信息: Initializing Spring FrameworkServlet 'qiye' 三月 22, 2017 12:05:58 上午 org.springframework.web.servlet.FrameworkServlet initServletBean 信息: FrameworkServlet 'qiye': initialization started 三月 22, 2017 12:05:58 上午 org.springframework.context.support.AbstractApplicationContext prepareRefresh 信息: Refreshing WebApplicationContext for namespace 'qiye-servlet': startup date [Wed Mar 22 00:05:58 CST 2017]; root of context hierarchy 三月 22, 2017 12:05:58 上午 org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions 信息: Loading XML bean definitions from ServletContext resource [/WEB-INF/qiye-servlet.xml] 三月 22, 2017 12:05:58 上午 org.apache.catalina.core.ApplicationContext log 严重: StandardWrapper.Throwable java.lang.NoClassDefFoundError: org/hibernate/Session at java.lang.Class.getDeclaredMethods0(Native Method) at java.lang.Class.privateGetDeclaredMethods(Class.java:2701) at java.lang.Class.getDeclaredMethods(Class.java:1975) at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:612) at org.springframework.util.ReflectionUtils.doWithMethods(ReflectionUtils.java:524) at org.springframework.util.ReflectionUtils.doWithMethods(ReflectionUtils.java:510) at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.determineCandidateConstructors(AutowiredAnnotationBeanPostProcessor.java:244) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.determineConstructorsFromBeanPostProcessors(AbstractAutowireCapableBeanFactory.java:1069) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1042) 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:197) at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:775) at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:861) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:541) at org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:668) at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:634) at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:682) at org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:553) at org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:494) at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:136) at javax.servlet.GenericServlet.init(GenericServlet.java:158) at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1269) at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1182) at org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:853) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:134) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:505) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:169) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:958) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:452) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1087) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:637) at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:316) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Thread.java:745) Caused by: java.lang.ClassNotFoundException: org.hibernate.Session at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1892) at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1735) ... 43 more 三月 22, 2017 12:05:58 上午 org.apache.catalina.core.StandardWrapperValve invoke 严重: Allocate exception for servlet qiye java.lang.ClassNotFoundException: org.hibernate.Session at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1892) at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1735) at java.lang.Class.getDeclaredMethods0(Native Method) at java.lang.Class.privateGetDeclaredMethods(Class.java:2701) at java.lang.Class.getDeclaredMethods(Class.java:1975) at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:612) at org.springframework.util.ReflectionUtils.doWithMethods(ReflectionUtils.java:524) at org.springframework.util.ReflectionUtils.doWithMethods(ReflectionUtils.java:510) at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.determineCandidateConstructors(AutowiredAnnotationBeanPostProcessor.java:244) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.determineConstructorsFromBeanPostProcessors(AbstractAutowireCapableBeanFactory.java:1069) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1042) 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:197) at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:775) at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:861) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:541) at org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:668) at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:634) at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:682) at org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:553) at org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:494) at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:136) at javax.servlet.GenericServlet.init(GenericServlet.java:158) at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1269) at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1182) at org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:853) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:134) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:505) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:169) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:958) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:452) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1087) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:637) at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:316) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Thread.java:745) 正常来 说应该可以获取的啊.另一个项目没用springMVC,用hibernate获取是正常的.

Answer 1

Caused by: java.lang.ClassNotFoundException: org.hibernate.Session

Answer 2

这个用法有错误，hibernate 是对dao层进行操作，service是操作业务逻辑代码，controller是空气器，这是要明确分工，下面是个简单的小demo

//新建UserDao
package com.purchase.dao;
import com.purchase.domain.User;

public interface UserDao {
    public void addUser(User user);
}



//新建实现类UserDaoImpl
public class UserDaoImpl implements UserDao{

    private SessionFactory sessionFactory;  
    public void setSessionFactory(SessionFactory sessionFactory) {  
        this.sessionFactory = sessionFactory;  
    }  
  
    @Override   
    public void addUser(User user) {//添加用户  
        sessionFactory.getCurrentSession().save(user);  
    }  
}

//新建service类
public interface UserService {  
    public void addUser(User user);  
    }
    
//新建service实现类
public class UserServiceImpl implements UserService {
    public UserDao userDao;
    
    @Override  
    public void addUser(User user) {  
        userDao = new UserDaoImpl();
        userDao.addUser(user);  
    }  
    }

    
//新建controller控制类
@Controller  
@RequestMapping("/user")  
public class UserController {  
    @Resource(name="userService")// 获取spring配置文件中bean的id为userService的，并注入   
    private UserService userService;     
    
    @RequestMapping("/addUser")// 请求url地址映射，类似Struts的action-mapping   
    public String addUser(User user){    
        userService.addUser(user);  
        return "redirect:/user/success";  
    } 
    }