org.hibernate.HibernateException: No Session found for current thread

我是在做spring3.2.1与hibernate4.2Final整合的时候出的这个bug,在网上找了很多资料仍然解决不了

我的这个项目只是想测试在Service层上加上一事务,当向数据库存入一个User的时候,在log里面加上记录

下面给出我的相关代码,实体类User、Logo以及相应的接口类UserDAO与LogDAO就不给出了,对于逻辑没有什么影响:

用于处理User的DAO层的类UserDAOImpl:

package com.edu.hpu.impl;

import javax.annotation.Resource;

import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.springframework.stereotype.Component;

import com.edu.hpu.dao.UserDAO;
import com.edu.hpu.model.User;

@Component(value="u")
public class UserDAOImpl implements UserDAO {
    
    private SessionFactory sessionFactory;

    public void save(User user) {
        Session s = sessionFactory.getCurrentSession();
        s.save(user);
    }

    public SessionFactory getSessionFactory() {
        return sessionFactory;
    }

    @Resource(name="sessionFactory")
    public void setSessionFactory(SessionFactory sessionFactory) {
        this.sessionFactory = sessionFactory;
    }

}

 用于处理Log的DAO层的类LogDAOImpl:

package com.edu.hpu.impl;

import javax.annotation.Resource;

import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.springframework.stereotype.Component;

import com.edu.hpu.dao.LogDAO;
import com.edu.hpu.model.Log;

@Component(value="logDAO")
public class LogDAOImpl implements LogDAO {
    
    private SessionFactory sessionFactory;

    @Override
    public void save(Log log) {
        Session s = sessionFactory.getCurrentSession();
        s.save(log);
    }

    public SessionFactory getSessionFactory() {
        return sessionFactory;
    }

    @Resource
    public void setSessionFactory(SessionFactory sessionFactory) {
        this.sessionFactory = sessionFactory;
    }

}

 用于联合处理User与Log的Service层次的类UserService类:

package com.edu.hpu.service;

import javax.annotation.Resource;

import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Component;
import org.springframework.transaction.annotation.Transactional;

import com.edu.hpu.dao.LogDAO;
import com.edu.hpu.dao.UserDAO;
import com.edu.hpu.model.Log;
import com.edu.hpu.model.User;

@Component(value="userService")
@Scope(value="singleton")
public class UserService {
    
    private UserDAO userDAO;
    private LogDAO logDAO;
    
    @Transactional
    public void save(User user) {
        userDAO.save(user);
        Log log = new Log();
        log.setMsg("a user been add into database");
        logDAO.save(log);
    }

    public UserDAO getUserDAO() {
        return userDAO;
    }
    
    @Resource(name="u")
    public void setUserDAO(UserDAO userDAO) {
        this.userDAO = userDAO;
    }

    public LogDAO getLogDAO() {
        return logDAO;
    }

    @Resource(name="logDAO")
    public void setLogDAO(LogDAO logDAO) {
        this.logDAO = logDAO;
    }
}

 beans.xml里面的配置信息:

<?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.xsd
           http://www.springframework.org/schema/context
           http://www.springframework.org/schema/context/spring-context.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-3.2.xsd">
    <context:annotation-config />
    <context:component-scan base-package="com.edu.hpu" />
    
    <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>
    <context:property-placeholder location="jdbc.properties" />

    <bean id="sessionFactory"
        class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
        <!-- 声明可以使用Annotation,而不是使用LocalSessionFactoryBean -->
        
        <property name="dataSource" ref="dataSource" />
        <!-- 指定数据库的连接信息,即指定数据连接池 -->
        
        <property name="annotatedClasses">
        <!-- 指定数据库中的实体 -->
            <list>
                <value>com.edu.hpu.model.User</value>
                <value>com.edu.hpu.model.Log</value>
            </list>
        </property>
        
        <property name="hibernateProperties">
        <!-- 指定方言等属性 -->
            <props>
                <prop key="hibernate.dialect">org.hibernate.dialect.MySQL5Dialect</prop>
                <prop key="hibernate.show_sql">true</prop>
                <prop key="hibernate.format_sql">true</prop>
            </props>
        </property>
        
    </bean>

    <bean id="transactionManager"
        class="org.springframework.orm.hibernate4.HibernateTransactionManager">
        <property name="sessionFactory" ref="sessionFactory" />
    </bean>
    
    <tx:annotation-driven transaction-manager="transactionManager"/>
</beans>

 用于测试的Junit类:

package com.edu.hpu.sevice;

import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import com.edu.hpu.model.User;
import com.edu.hpu.service.UserService;

public class TestUser {

    @Test
    public void testSave() {
        ApplicationContext acx = new ClassPathXmlApplicationContext("beans.xml");
        
        UserService service = (UserService)acx.getBean("userService");
        
        service.save(new User());
        
    }
    
}

 出现的问题情况如下,bug信息:

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:980)
    at com.edu.hpu.impl.UserDAOImpl.save(UserDAOImpl.java:18)
    at com.edu.hpu.service.UserService.save(UserService.java:23)
    at com.edu.hpu.sevice.TestUser.testSave(TestUser.java:18)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:601)
    at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
    at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
    at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
    at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
    at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
    at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:46)
    at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)

 出现bug的地点,是在getCurrentSession()这个地方。。求指教。。。

blueskyzs
blueskyzs 这位兄弟在看马士兵的视频
6 年多之前 回复

1个回答

at com.edu.hpu.impl.UserDAOImpl.save(UserDAOImpl.java:18)

at com.edu.hpu.service.UserService.save(UserService.java:23)

at com.edu.hpu.sevice.TestUser.testSave(TestUser.java:18)

UserService没有被事务切面代理

加上

而且需要cglib包

chinrui
qchery 成功了,谢谢……
6 年多之前 回复
chinrui
qchery 好的,谢谢,我先去试试……
6 年多之前 回复
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