问题描述
大家好， 我今天在整合spring3+hibernate的时候老是被提示找不到session 我获取session的方式是sessionFactory.getCurrentSession()控制台报的错误：严重: Servlet.service() for servlet springmvc threw exceptionorg.hibernate.HibernateException: No Session found for current threadat org.springframework.orm.hibernate4.SpringSessionContext.currentSession(SpringSessionContext.java:97)at org.hibernate.internal.SessionFactoryImpl.getCurrentSession(SessionFactoryImpl.java:978)at cn.ccsu.dao.impl.UserDaoImpl.getSession(UserDaoImpl.java:48)at cn.ccsu.dao.impl.UserDaoImpl.exist(UserDaoImpl.java:22)at cn.ccsu.manager.impl.UserManagerImpl.register(UserManagerImpl.java:20)at cn.ccsu.web.UserAction.register(UserAction.java:27)at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)at java.lang.reflect.Method.invoke(Method.java:597)at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219)at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:746)at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:687)at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:915)at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:822)at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:796)at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)at java.lang.Thread.run(Thread.java:619) applicationContext.xml文件<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:tx="http://www.springframework.org/schema/tx"xmlns:aop="http://www.springframework.org/schema/aop" xmlns:context="http://www.springframework.org/schema/context"xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.2.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.2.xsd"default-autowire="byName"><context:component-scan base-package="cn.ccsu" /><bean id="propertyConfigurer"class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"><property name="locations"><list><value>classpath:config/jdbc.properties</value></list></property></bean><bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"destroy-method="close"><property name="driverClass" value="${hibernate.connection.driver_class}" /><property name="jdbcUrl" value="${hibernate.connection.url}" /><property name="user" value="${hibernate.connection.username}" /><property name="password" value="${hibernate.connection.password}" /></bean><bean id="sessionFactory"class="org.springframework.orm.hibernate4.LocalSessionFactoryBean"><property name="dataSource" ref="dataSource"></property><property name="hibernateProperties"><props><prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop><prop key="hibernate.show_sql">true</prop><prop key="hibernate.format_sql">true</prop><prop key="hibernate.current_session_context_class">org.springframework.orm.hibernate4.SpringSessionContext</prop></props></property><property name="packagesToScan"><value>cn.ccsu.model</value></property></bean><bean id="transactionManager"class="org.springframework.orm.hibernate4.HibernateTransactionManager"><property name="sessionFactory"><ref bean="sessionFactory" /></property></bean><tx:annotation-driven transaction-manager="transactionManager"/></beans> web.xml文件<?xml version="1.0" encoding="UTF-8"?><web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"id="WebApp_ID" version="2.5"><display-name>S3SH</display-name><listener><listener-class>org.springframework.web.context.ContextLoaderListener</listener-class></listener><context-param><param-name>contextConfigLocation</param-name><param-value>classpath:config/applicationContext.xml</param-value></context-param><filter> <filter-name>OpenSessionInViewFilter</filter-name> <filter-class> org.springframework.orm.hibernate4.support.OpenSessionInViewFilter </filter-class> <!-- 指定在spring配置的sessionFactory --> <init-param> <param-name>sessionFactoryBeanName</param-name> <param-value>mysqlSessionFactory</param-value> </init-param> <!-- singleSession默认为true,若设为false则等于没用OpenSessionInView --> <init-param> <param-name>singleSession</param-name> <param-value>true</param-value> </init-param> </filter> <!-- 处理中文乱码问题 start --><filter><filter-name>UTF-Encoding</filter-name><filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class><init-param><param-name>encoding</param-name><param-value>UTF-8</param-value></init-param><init-param><param-name>forceEncoding</param-name><param-value>true</param-value></init-param></filter><filter-mapping><filter-name>UTF-Encoding</filter-name><url-pattern>/*</url-pattern></filter-mapping><!-- 处理中文乱码问题 end --><!-- springmvc start --><servlet><servlet-name>springmvc</servlet-name><servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class><init-param><param-name>contextConfigLocation</param-name><param-value>classpath:config/springmvc-servlet.xml</param-value></init-param><load-on-startup>1</load-on-startup></servlet><servlet-mapping><servlet-name>springmvc</servlet-name><url-pattern>*.do</url-pattern></servlet-mapping><!-- springmvc end --></web-app> UserManagerImpl.javapackage cn.ccsu.dao.impl;import java.util.List;import org.hibernate.Query;import org.hibernate.Session;import org.hibernate.SessionFactory;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.beans.factory.annotation.Qualifier;import org.springframework.stereotype.Component;import cn.ccsu.dao.UserDao;import cn.ccsu.model.UserBean;@SuppressWarnings("unchecked")@Component("userDao")public class UserDaoImpl implements UserDao {@Overridepublic boolean exist(UserBean userBean) {String hql = "from UserBean userBean where userBean.username=:key";Query q = getSession().createQuery(hql);q.setParameter("key", userBean.getUsername());if (q.list().size() > 0) {return true;}return false;}@Overridepublic UserBean addUser(UserBean userBean) {getSession().save(userBean);return userBean;}@Overridepublic List<UserBean> getAllUserList() {return getSession().createQuery("from UserBean").list();}@Autowired@Qualifier("sessionFactory")private SessionFactory sessionFactory;public Session getSession() {return sessionFactory.getCurrentSession();}} 以上就是这个项目的主要代码了 请各位大神帮我瞧瞧 多谢
解决方案
<prop key="hibernate.current_session_context_class">org.springframework.orm.hibernate4.SpringSessionContext</prop> 注掉试试
解决方案二：
<prop key="hibernate.current_session_context_class">org.springframework.orm.hibernate4.SpringSessionContext</prop>改为：<prop key="hibernate.current_session_context_class">thread</prop>这个试试
解决方案三：
在你测试的类上或方法上加@Transactional
解决方案四：
http://blog.csdn.net/loveyout/article/details/4193894