终于解决了:No Session found for current thread

使用Spring+Hibernate,获取数据库Session时,总是抛出异常:No Session found for current thread。

在网卡找了好几天,终于解决

http://blog.csdn.net/greensurfer/article/details/8982876


现将我自己的配置贴出来

Spring配置文件spring.xml内容如下:

<?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:aop="http://www.springframework.org/schema/aop"
	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:tx="http://www.springframework.org/schema/tx"
	xsi:schemaLocation="http://www.springframework.org/schema/beans 
    http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
    http://www.springframework.org/schema/aop
    http://www.springframework.org/schema/aop/spring-aop-4.0.xsd
    http://www.springframework.org/schema/context
    http://www.springframework.org/schema/context/spring-context-4.0.xsd
    http://www.springframework.org/schema/tx 
    http://www.springframework.org/schema/tx/spring-tx-4.0.xsd">

	<context:annotation-config />
	<context:component-scan base-package="th05" />
	
	<!-- 配置数据源 -->
	<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
		<property name="driverClassName" value="com.mysql.jdbc.Driver" />
		<property name="url" value="jdbc:mysql://192.168.93.200:3306/kangpy" />
		<property name="username" value="admin_kangpy" />
		<property name="password" value="admin123" />
	</bean>

	<bean id="jdbcTemplate" class="org.springframework.jdbc.core.simple.SimpleJdbcTemplate">
		<constructor-arg ref="dataSource" />
	</bean>

	<!-- 配置session工厂 -->
	<bean id="sessionFactory"
		class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">

		<!-- 这里需要注意在hibernate3中,使用 org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean -->
		<property name="dataSource" ref="dataSource" /> <!-- session所依赖的数据源 -->

		<!-- 定义持久化类所在的包 -->
		<!--<property name="packagesToScan" value="th05.hibernate" /> 这是一种方法 -->
		<!-- 以下是另一种方式 -->
		<property name="packagesToScan">
		<!-- 定义了此,但双没有任何实际的类,会抛出异常:
		java.lang.ClassNotFoundException: org.hibernate.cfg.Configuration -->
			<list>
				<value>th05.hibernate</value>
			</list>
		</property>

		<property name="hibernateProperties">
			<props>
				<prop key="dialect">org.hibernate.dialect.HSQLDialect</prop>
				
				<!-- 
				抛出此异常时,No Session found for current thread
				需要进行添加以下这一句,另外,还需要
				tx:annotation-driven transaction-manager="transactionManager 
				
				 -->
				 <prop key="<span style="color:#FF0000;">hibernate.current_session_context_class</span>">org.springframework.orm.hibernate4.SpringSessionContext</prop>  
			</props>
		</property>
	</bean>

	<!-- 事务配置 ,此不是必须的,只有需要支持事务控制的工程在才需要,不过一般都需要,所以一般都需要配置这个 -->
	<bean id="transactionManager"
		class="org.springframework.orm.hibernate4.HibernateTransactionManager">
		<property name="sessionFactory" ref="sessionFactory" /> <!-- 事务中获取session时,是从这里获取的 -->
	</bean>
	
	<!-- 定义事务管理器,此是告诉Spring检查上下文中所有的Bean并查找使用@Transactional注解的Bean,而不管这个注解是用在类级别还是方法级别上
	对每一个使用@Transactional注解的Bean,<tx:annotation-driven>会自动 为它添加事务通知。
	在类级别上使用@Transactional注解,表示所有的方法都支持事务并且是只读的 
	-->
	<<span style="color:#FF0000;">tx:annotation-driven transaction-manager</span>="transactionManager"/>
	
	
	<bean id="aaabbb" class="th05.hibernate.CustomerDao" />
	
	<bean id="aaabbb1" class="th05.hibernate.CustomerDao1" />
</beans> 

//测试代码如下
package th05.hibernate;

import java.util.List;

import kpy.SpringInAction.LogWriter;

import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.orm.hibernate4.support.HibernateDaoSupport;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

@Service
public class CustomerDao1{
	
	private SessionFactory sessionFactory;
	
	@Autowired  
    public void setMySessionFactory(SessionFactory sessionFactory){  
		LogWriter.trace(LogWriter.getMethodName(this.getClass().getName()));
		
		//System.out.println("sssssssssssssssssssss   " + (Object)sessionFactory);
		
		this.sessionFactory = sessionFactory;
    }
	private Session currentSession (){
		return this.sessionFactory.getCurrentSession();
	}

	@Transactional
	public Customers getObjById (String id) {
		LogWriter.trace(LogWriter.getMethodName(this.getClass().getName()));
		

		Customers c = null;
		try{
			
			Session session = this.currentSession();
			// get的第二个参数为表的主键
			c = (Customers)session.get(Customers.class, new String("32363240"));
			c.show();
			
		}catch(Exception e) {
			System.out.println(e);
		}
		return c;
	}
}



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转载自blog.csdn.net/lijing_lj928/article/details/50592808