关于No Hibernate Session bound to thread, and configuration does not解决的历程

最新推荐文章于 2020-05-26 23:09:01 发布

街头小小张

最新推荐文章于 2020-05-26 23:09:01 发布

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本文链接：https://blog.youkuaiyun.com/u013529766/article/details/85242871

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这是我第一次做ssh框架整合，但这次的整合No Hibernate Session bound to thread, and configuration does not allow creation of non-transactional one here这个问题。让我花费了巨大的精力和时间才最终解决。

首先感谢博主:王奕然,是他的博客让我的问题得已解决，文章博客地址:https://blog.youkuaiyun.com/macrohui2017/article/details/56666739

现在说说我的整合过程，希望能给后面遇到此问题的行业伙伴给个借鉴。

首先贴上我的java代码及spring hibernate的配置。

package com.inn.zl.hibernate.test;

import com.alibaba.fastjson.JSON;
import com.inn.zl.hibernate.model.entities.TestEntity_HI;
import org.hibernate.Query;
import org.hibernate.SessionFactory;
import org.junit.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.FileSystemXmlApplicationContext;
import org.springframework.orm.hibernate3.HibernateTemplate;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;
import org.springframework.stereotype.Component;
import org.springframework.transaction.annotation.Transactional;

import javax.annotation.Resource;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;

@Component
public class HibernateTest extends HibernateDaoSupport {

    @Autowired
    private HibernateTemplate hibernateTemplete;

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


    @Test
    public void saveTest(){
        ApplicationContext context = new FileSystemXmlApplicationContext("classpath:spring.hibernate.cfg.xml");

        TestEntity_HI t = new TestEntity_HI();
        t.setClassName("test");

        HibernateTemplate hibernateTemplate = (org.springframework.orm.hibernate3.HibernateTemplate) context.getBean("hibernateTemplete");
        hibernateTemplate.save(t);




    }

    public static void main(String[] args) {
        HibernateTest t = new HibernateTest();
        t.findTest();
    }

    @Test
    public void test1(){
        ApplicationContext context = new FileSystemXmlApplicationContext("classpath:spring.hibernate.cfg.xml");
        HibernateTest h = (HibernateTest) context.getBean("hibernateTest");
        h.findTest();
    }

    @Test
    public void findTest(){
        ApplicationContext context = new FileSystemXmlApplicationContext("classpath:spring.hibernate.cfg.xml");

        TestEntity_HI t = new TestEntity_HI();
        t.setClassName("test");

        Map<String, Object> map = new HashMap<String,Object>();


        StringBuilder hql = new StringBuilder();
        hql.append("from  " + t.getClass().getSimpleName());
        if (!map.isEmpty()) {
            Iterator<String> it = map.keySet().iterator();
            String key = (String)it.next();
            hql.append(" where  " + key + "=:" + key);

            while(it.hasNext()) {
                key = (String)it.next();
                hql.append(" and  " + key + "=:" + key);
            }
        }

        HibernateTemplate hibernateTemplate = (org.springframework.orm.hibernate3.HibernateTemplate) context.getBean("hibernateTemplete");
        System.out.println(JSON.toJSONString(hql));
        Query query = hibernateTemplate.getSessionFactory().getCurrentSession().createQuery(hql.toString());
//        Query query = hibernateTemplate.getSessionFactory().openSession().createQuery(hql.toString());
        query = this.setParameter(query, map);
//        this.querySQL = this.getQuerySql(query.getQueryString());
//        return query.list();

        System.out.println(JSON.toJSONString(query.list()));







//        hibernateTemplate.getSessionFactory().getCurrentSession().createQuery("")
//        hibernateTemplate.

//        System.out.println(JSON.toJSONString(hibernateTemplate.findByExample("className",t)));

    }


    private static Query setParameter(Query query, Map<String, Object> parameterMap) {
        String[] namedParameters = query.getNamedParameters();
        if (null != namedParameters && namedParameters.length > 0) {
            if (null != parameterMap) {
                Iterator iterator = parameterMap.keySet().iterator();

                while(iterator.hasNext()) {
                    String key = (String)iterator.next();
                    Object tempObject = parameterMap.get(key);
                    if (tempObject instanceof List) {
                        query.setParameterList(key, (List)tempObject);
                    } else {
                        query.setParameter(key, parameterMap.get(key));
                    }
                }
            }

            return query;
        } else {
            return query;
        }
    }


}

spring.hibernate配置文件

<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-3.2.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 ">

    <context:annotation-config/>
    <context:component-scan base-package="com.inn.zl.hibernate.test"/>
    <!--<context:component-scan base-package="com.inn.zl.hibernate.test.*.*" />-->

    <bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
        <property name="locations">
            <value>classpath:db_jdbc.properties</value>
        </property>
    </bean>

    <bean id="dataSource" destroy-method="close" class="org.apache.commons.dbcp.BasicDataSource">
        <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.hibernate3.annotation.AnnotationSessionFactoryBean">
        <property name="dataSource" ref="dataSource"/>
        <property name="packagesToScan">
            <list>
                <value>com.inn.zl.hibernate.model.entities</value>
            </list>
        </property>
        <property name="hibernateProperties">
            <props>
                <prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
                <prop key="hibernate.show_sql">true</prop>
                <prop key="javax.persistence.validation.mode">none</prop>
            </props>
        </property>
    </bean>

    <bean id="hibernateTemplete" class="org.springframework.orm.hibernate3.HibernateTemplate">
        <property name="sessionFactory" ref="sessionFactory"></property>
    </bean>
    <bean id="transactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager">
        <property name="sessionFactory" ref="sessionFactory"></property>
    </bean>
    <tx:annotation-driven transaction-manager="transactionManager"/>
    <!-- 配置事务的传播特性 -->
    <tx:advice id="txAdvice" transaction-manager="transactionManager">
        <tx:attributes>
            <tx:method name="insert*" propagation="REQUIRED" rollback-for="Exception"/>
            <tx:method name="save*" propagation="REQUIRED" rollback-for="Exception"/>
            <tx:method name="update*" propagation="REQUIRED" rollback-for="Exception"/>
            <tx:method name="delete*" propagation="REQUIRED" rollback-for="Exception"/>
            <tx:method name="find*" read-only="true"/>
            <tx:method name="*" propagation="SUPPORTS"/>
        </tx:attributes>
    </tx:advice>
    <!-- 那些类的哪些方法参与事务 -->
    <aop:config>
        <aop:pointcut id="businessService" expression="execution(* com.inn.zl.hibernate.test.*.*(..))"/>
        <aop:advisor advice-ref="txAdvice" pointcut-ref="businessService"/>
    </aop:config>
</beans>

我使用的是junit测试和王奕然是一样的，所以关键的地方就在这里。
网上的解决方案很多如 :

1、配置文件添加<tx:annotation-driven proxy-target-class="true" transaction-manager="transactionManager"/>或者

<tx:annotation-driven transaction-manager="txManager"/>等

2、hibernate配置文件添加<pro name="current_session_context_class">thread</pro >

等等都不行。

其实我的配置一开始就是对的，只是关键地方在于使用junit和aop:config的使用理解不够。

好，现在说说关键的代码在哪里。

 @Test
    public void test1(){
        ApplicationContext context = new FileSystemXmlApplicationContext("classpath:spring.hibernate.cfg.xml");
        HibernateTest h = (HibernateTest) context.getBean("hibernateTest");
        h.findTest();
    }

    @Test
    public void findTest(){
        ApplicationContext context = new FileSystemXmlApplicationContext("classpath:spring.hibernate.cfg.xml");

        TestEntity_HI t = new TestEntity_HI();
        t.setClassName("test");
        Map<String, Object> map = new HashMap<String,Object>();
        StringBuilder hql = new StringBuilder();
        hql.append("from  " + t.getClass().getSimpleName());
        if (!map.isEmpty()) {
            Iterator<String> it = map.keySet().iterator();
            String key = (String)it.next();
            hql.append(" where  " + key + "=:" + key);

            while(it.hasNext()) {
                key = (String)it.next();
                hql.append(" and  " + key + "=:" + key);
            }
        }
        HibernateTemplate hibernateTemplate = (org.springframework.orm.hibernate3.HibernateTemplate) context.getBean("hibernateTemplete");
        System.out.println(JSON.toJSONString(hql));
        Query query = hibernateTemplate.getSessionFactory().getCurrentSession().createQuery(hql.toString());
        query = this.setParameter(query, map);
        System.out.println(JSON.toJSONString(query.list()));

以上代码中findTest方法是我开始做的junit，就是在该方法内运行会一直报:No Hibernate Session bound to thread, and configuration does not allow creation of non-transactional one here。

其中test()方法是我看了王奕然写的，通过test方法调用findTest()方法是能成功查询数据的。复制一段王奕然的说法: