在service类前加上@Transactional,声明这个service所有方法需要事务管理。

解决方案 »

  1.   

    <?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:context="http://www.springframework.org/schema/context"
    xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
    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/aop
       http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
        http://www.springframework.org/schema/tx
       http://www.springframework.org/schema/tx/spring-tx-3.0.xsd">
    <context:annotation-config />
    <context:component-scan base-package="edu.cs.tnt.sim..*">
    <context:exclude-filter type="annotation"
    expression="org.springframework.stereotype.Controller" />
    </context:component-scan>
    <context:property-placeholder location="classpath*:jdbc.properties" />
    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
    destroy-method="close">
    <property name="driverClassName" value="${jdbc.driverClassName}" />
    <property name="url" value="${jdbc.url}" />
    <property name="username" value="${jdbc.username}" />
    <property name="password" value="${jdbc.password}" />
    </bean> <bean id="sessionFactory"
    class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
    <property name="dataSource" ref="dataSource" />
    <property name="packagesToScan" value="edu.cs.tnt.sim"></property> <property name="mappingLocations">
    <list>
    </list>
    </property> <property name="hibernateProperties">
    <props>
    <prop key="hibernate.dialect">org.hibernate.dialect.MySQL5Dialect</prop>
    <prop key="hibernate.show_sql">true</prop>
    <prop key="hibernate.hbm2ddl.auto">update</prop>
    <!-- <prop key="current_session_context_class">thread</prop> -->
      
    </props>
    </property>
    </bean>
    <!-- 事务配置 -->
    <bean id="txManager"
    class="org.springframework.orm.hibernate4.HibernateTransactionManager">
    <property name="sessionFactory" ref="sessionFactory"></property>
    </bean>
    <tx:advice id="txAdvice" transaction-manager="txManager">
    <tx:attributes>
    <tx:method name="save*" propagation="REQUIRED" />
    <tx:method name="add*" propagation="REQUIRED" />
    <tx:method name="create*" propagation="REQUIRED" />
    <tx:method name="insert*" propagation="REQUIRED" />
    <tx:method name="update*" propagation="REQUIRED" />
    <tx:method name="del*" propagation="REQUIRED" />
    <tx:method name="remove*" propagation="REQUIRED" />
    <tx:method name="put*" propagation="REQUIRED" />
    <tx:method name="get*" propagation="REQUIRED" />
    <tx:method name="count*" propagation="REQUIRED" />
    <tx:method name="find*" propagation="REQUIRED" />
    <tx:method name="list*" propagation="REQUIRED" />
    </tx:attributes>
    </tx:advice>
    <aop:config>

    <aop:pointcut id="daoMethods"
    expression="execution(* edu.cs.tnt.sim..*Dao.*(..))" />

    <aop:advisor advice-ref="txAdvice" pointcut-ref="daoMethods" />
    </aop:config>
    </beans>  
      

  2.   


    只是觉得java里面能正常运行,配置应该没什么问题,,所以就没上配置。。
      

  3.   


    只是觉得java里面能正常运行,配置应该没什么问题,,所以就没上配置。。
    <?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" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
      
      <display-name>Archetype Created Web Application</display-name>
      <context-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>
                classpath*:Beans.xml
            </param-value>
        </context-param>    <listener>
            <listener-class>
                org.springframework.web.context.ContextLoaderListener
            </listener-class>
        </listener>
        <!-- Spring配置文件结束 -->
        
        
        <filter>
    <filter-name>Encoding</filter-name>
    <filter-class>
    org.springframework.web.filter.CharacterEncodingFilter
    </filter-class>
    <init-param>
    <param-name>encoding</param-name>
    <param-value>utf8</param-value>
    </init-param>
    </filter>
    <filter-mapping>
    <filter-name>Encoding</filter-name>
    <url-pattern>/*</url-pattern>
    </filter-mapping>
        
        
        
        
     
        <!-- Spring MVC配置开始 -->
        <servlet>
            <servlet-name>spring</servlet-name>
            <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
            <init-param>
                <param-name>contextConfigLocation</param-name>
                <param-value>classpath:spring-servlet.xml</param-value>
            </init-param>
            <load-on-startup>1</load-on-startup>
        </servlet>    <servlet-mapping>
            <servlet-name>spring</servlet-name>
            <url-pattern>*.html</url-pattern>
        </servlet-mapping>
        <!-- Spring MVC配置结束-->
    </web-app>
      

  4.   

    你的事务切面为*Dao,service并没有配置事务
      

  5.   

    这是controller:@Controller
    public class UserController {
    @Autowired
    UserService userService; @RequestMapping("login")
    public String Login(@RequestParam("username") String username,
    @RequestParam("pwd") String pwd, HttpServletRequest request) {
    if(userService.Login(username, pwd)){
    return "loginsuccess";
    }
    else {
    return "loginfail";
    }
    }

    }jsp页面中表单(没有其他代码):<form action="login.html" method="post">请输入姓名:<input type="text" name="username" />
    请输入密码:<input type="text" name="pwd" /><input type="submit" value="提交" /><br /></form>这样的话就会报 no session。如果controller中不涉及数据访问部分就可以正常运行。测试代码:
    public class test { public static void main(String[] args){
    BeanFactory factory=new ClassPathXmlApplicationContext("classpath*:Beans.xml");
    UserService userService=(UserService) factory.getBean("userServiceImpl");
    // User user=new User();
    // user.setClazz("软件115");
    // user.setEmail("[email protected]");
    // user.setPwd("zp1228");
    // user.setSuperuser(1);
    // user.setUsername("zp1");
    // System.out.println(userService.Register(user));
    System.out.println(userService.Login("zp", "zp1228"));
    }
    }java代码可以正常的得出结果,不会no session。
      

  6.   


    我试了一下,切面不指定dao的话,还是会有这样的错误。而且指定了用java代码还是可以正常使用service,不会no session。可以看看楼上我贴的代码,,实在是搞不懂怎么回事了
      

  7.   


    错误报的是No Session found for current thread,终点是不是current thread?是不是在tomcat中就是其他thread了?
      

  8.   

    错误报的是No Session found for current thread,重点是不是current thread?是不是在tomcat中就是其他thread了?
      

  9.   

    把异常贴出来,你试试在sessionFactory里面加上    <prop key="current_session_context_class">thread</prop>    
      

  10.   


    dao里面的getCurrentSession()这一句报错。
      

  11.   

    一开始就是有这一句的,不行,然后我去掉了,还是不行。
    严重: Servlet.service() for servlet [spring] in context with path [/sim_web] threw exception [Request processing failed; nested exception is org.hibernate.HibernateException: No Session found for current thread] with root cause
    org.hibernate.HibernateException: No Session found for current thread
    at org.springframework.orm.hibernate4.SpringSessionContext.currentSession(SpringSessionContext.java:97)
    at org.hibernate.internal.SessionFactoryImpl.getCurrentSession(SessionFactoryImpl.java:988)
    at edu.cs.tnt.sim.user.dao.UserDao.getSession(UserDao.java:20)
    at edu.cs.tnt.sim.user.dao.UserDao.findByName(UserDao.java:31)
    at edu.cs.tnt.sim.user.service.impl.UserServiceImpl.Login(UserServiceImpl.java:19)
    at edu.cs.tnt.sim.user.controller.UserController.Login(UserController.java:21)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:176)
    at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:440)
    at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:428)
    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:953)
    at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:855)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:646)
    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:829)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
    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:241)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1040)
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607)
    at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:315)
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)
      

  12.   

    那你在web.xml配置org.springframework.orm.hibernate4.support.OpenSessionInViewFilter试试。
      

  13.   

    这个 <context:component-scan base-package="edu.cs.tnt.sim..*"> 改成
     <context:component-scan base-package="edu.cs.tnt.sim">试试
      

  14.   


    嘿嘿,我这也是才开始学这个,所以也不知道这个问题是不是有点小白。
    .OpenSessionInViewFilter这东西我一开始就没见过。
      

  15.   

    总之还是谢谢了,只是当时一时激动分全给光了不好意思Hibernate4 和Spring整合的时候这个过滤器好像很重要:
    http://docs.spring.io/spring/docs/4.0.3.RELEASE/javadoc-api//org/springframework/orm/hibernate4/support/OpenSessionInViewFilter.html