小弟新手,学习spring没有多长时间,求高手帮忙~
spring整合了hibernate之后能正常插入数据,但是出现异常之后不能回滚。
首先,测试代码:
spring整合了hibernate之后能正常插入数据,但是出现异常之后不能回滚。
首先,测试代码:
public void testOne(){ ApplicationContext context=new ClassPathXmlApplicationContext("com/kdyzm/spring/hibernate/xml/applicationContext.xml"); CourseService courseService=(CourseService) context.getBean("courseService"); Course course = new Course(); // course.setCid(11L); course.setCname("赵日天"); courseService.addCourse(course); course =new Course(); course.setCname("王大锤"); //通过/0的异常测试事务回滚! int a=1/0; courseService.addCourse(course); }
运行结果:
com.kdyzm.spring.hibernate.xml.applicationContext.xml配置文件:
<?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: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-2.5.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-2.5.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd "> <!-- 将hibernate.cfg.xml配置文件导入进来 --> <bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean"> <property name="configLocation"> <value>classpath:hibernate.cfg.xml</value> </property> </bean> <!-- 程序员做的事情 --> <bean id="hibernateTemplate" class="org.springframework.orm.hibernate3.HibernateTemplate"> <property name="sessionFactory" ref="sessionFactory"></property> </bean> <bean id="courseDao" class="com.kdyzm.spring.hibernate.xml.CourseDaoImpl"> <property name="hibernateTemplate"> <ref bean="hibernateTemplate"/> </property> </bean> <bean id="courseService" class="com.kdyzm.spring.hibernate.xml.CourseServiceImpl"> <property name="courseDao"> <ref bean="courseDao"/> </property> </bean> <!-- Spring容器做的事情 --> <!-- 定义事务管理器 --> <bean id="hibernateTransactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager"> <property name="sessionFactory" ref="sessionFactory"></property> </bean> <!-- 哪些通知需要开启事务模板 --> <tx:advice id="advice" transaction-manager="hibernateTransactionManager"> <tx:attributes> <tx:method name="add*" isolation="DEFAULT" propagation="REQUIRED" read-only="false"/> </tx:attributes> </tx:advice> <!-- 配置切面表达式和通知 --> <aop:config> <aop:pointcut expression="execution(* com.kdyzm.spring.hibernate.xml.*ServiceImpl.*(..))" id="perform"/> <aop:advisor advice-ref="advice" pointcut-ref="perform"/> </aop:config> </beans>
com.kdyzm.spring.hibernate.CourseDaoImpl.java
package com.kdyzm.spring.hibernate.xml; import org.springframework.orm.hibernate3.HibernateTemplate; public class CourseDaoImpl implements CourseDao{ //这里使用HibernateTemplate,而不是使用JdbcTemplate private HibernateTemplate hibernateTemplate; public HibernateTemplate getHibernateTemplate() { return hibernateTemplate; } public void setHibernateTemplate(HibernateTemplate hibernateTemplate) { this.hibernateTemplate = hibernateTemplate; } @Override public Course getCourse(Long cid) { return (Course) this.hibernateTemplate.get(Course.class, cid); } @Override public Course updateCourse(Course course) { this.hibernateTemplate.update(course); return course; } @Override public Course deleteCourse(Course course) { this.hibernateTemplate.delete(course); return course; } @Override public Course addCourse(Course course) { this.hibernateTemplate.saveOrUpdate(course); return course; } }
hibernate.cfg.xml配置文件:
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD 3.0//EN" "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd"> <hibernate-configuration> <session-factory> <property name="connection.driver_class"> com.mysql.jdbc.Driver </property> <property name="connection.username">root</property> <property name="connection.password">5a6f38</property> <property name="connection.url"> jdbc:mysql://localhost:3306/test </property> <property name="show_sql">true</property> <property name="hbm2ddl.auto">update</property> <property name="dialect"> org.hibernate.dialect.MySQLDialect </property> <property name="javax.persistence.validation.mode">none</property> <mapping resource="com/kdyzm/spring/hibernate/xml/Course.hbm.xml" /> </session-factory> </hibernate-configuration>
解决方案:20分
對的,你配置的事務是在Service層,因此你的業務層抛出異常并不影響事務的成功與否(當Service層方法返回之後,事務就已經完成),因此你的測試應該將抛異常移到Service層,或將你的測試類的方法加入到事務中。