最近做项目，被一个问题烦恼了很久。使用Spring MVC+Spring +Hibernate开发项目，在使用注解配置事务管理，刚开始发现无论如何数据库都无法更新，但是可以从数据库查询到数据。怀疑是配置文件的问题，但是反复确认，配置文件没有问题。后来将注解配置事务变更为注解配置事务，同样无法入库。
后来在dao层方法里面添加了session.flush()数据可以入库，但是不能回滚。正常的情况下，配置事务成功的话，事务会自动提交，session会自动flush。于是怀疑配置的事务根本就没有起到作用。在网上查找资料，终于发现问题症结所在。
引起问题原因：spring初始化时优先component-scan bean,注入Web Controller 的Service直接拿了上下文中的@Service("someService"),这个时候@Transactional (readOnly=false, isolation = Isolation.READ_COMMITTED) 还没有被处理.所以Web Controller 的Service是SomeServiceImpl而不是AOP的$ProxyNO.
解决途径：不让spring扫描到ServiceImpl类,直接写在xml文件,其它的配置和annotation照用,这样事务就起作用了.
按照上述配置，发现事务起作用了，自动提交，并且在出现异常的时候自动回滚。
工程具体配置：
<?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>SMS</display-name> <context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath*:school-spring-*.xml</param-value>
</context-param> <listener>
<!-- 负责加载spring的配置文件 -->
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener> <!-- 直接使用spring的encodingFilter-->
<filter>
<filter-name>encodingFilter</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
<init-param>
<param-name>forceEncoding</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>encodingFilter</filter-name>
<url-pattern>*</url-pattern>
</filter-mapping> <!-- 集成使用Spring MVC -->
<servlet>
<servlet-name>defaultDispatcher</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param>
<param-name>contextConfigLocation</param-name>
<!-- Spring XML 文件 -->
<param-value>classpath*:school-springmvc.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>defaultDispatcher</servlet-name>
<url-pattern>/school/*</url-pattern>
</servlet-mapping> <!-- 验证码生成 -->
<servlet>
<servlet-name>image_code</servlet-name>
<servlet-class>cn.com.yinuo.common.web.util.RandomCode</servlet-class>
</servlet> <servlet-mapping>
<servlet-name>image_code</servlet-name>
<url-pattern>/imgCode</url-pattern>
</servlet-mapping> <!-- 解决hibernate延迟加载问题 -->
<!--
<filter>
<filter-name>openSession</filter-name>
<filter-class>org.springframework.orm.hibernate3.support.OpenSessionInViewFilter</filter-class>
</filter> <filter-mapping>
<filter-name>openSession</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
-->
<!-- session超时定义,单位为分钟 -->
<session-config>
<session-timeout>30</session-timeout>
</session-config> <!-- 欢迎界面 -->
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>
web.xml
<?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:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:jee="http://www.springframework.org/schema/jee"
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/jee
http://www.springframework.org/schema/jee/spring-jee-3.2.xsd"> <!-- Spring管理配置文件 -->
<bean id="propertyConfigurer"
class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="locations">
<list>
<value>classpath*:school_config.properties</value>
</list>
</property>
<!-- 可注入中文 -->
<property name="fileEncoding" value="UTF-8"/>
</bean> <!-- 注解扫描包 会扫描school包下面所有的类文件以及包 待确认-->
<context:component-scan base-package="cn.com.yinuo.school">
<context:exclude-filter type="regex" expression="cn.com.yinuo.*.web.*"/>
<context:exclude-filter type="regex" expression=".*ServiceImpl$" />
</context:component-scan> <!-- 配置multipartResolver处理器 -->
<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
<property name="defaultEncoding" value="utf-8" />
<property name="maxUploadSize" value="10485760000" />
<property name="maxInMemorySize" value="40960" />
</bean>
<bean name="informationService" class="cn.com.yinuo.school.InformationMaintenance.biz.service.impl.InformationServiceImpl">
</bean>
</beans>
school-spring-core.xml
<?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:p="http://www.springframework.org/schema/p"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:jee="http://www.springframework.org/schema/jee"
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/mvc
http://www.springframework.org/schema/mvc/spring-mvc-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/jee
http://www.springframework.org/schema/jee/spring-jee-3.2.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-3.2.xsd"> <!-- 注解扫描包 会扫描school包下面所有的类文件以及包 待确认-->
<context:component-scan base-package="cn.com.yinuo.school">
<!-- <context:include-filter type="regex" expression="cn.com.yinuo.*.web.*"/> -->
</context:component-scan>
<!-- 开启注解 -->
<mvc:annotation-driven/>
<!-- 上面开启注解的方式是下面开启注解方式的优化，下面的方式在3之后就过时了 -->
<!--
<bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter" />
<bean class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping"></bean>
-->
<!-- 访问静态资源 -->
<mvc:resources location="/js/" mapping="/js/**"/>
<mvc:resources location="/img/" mapping="/img/**"/>
<mvc:resources location="/css/" mapping="/css/**"/> <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/"></property>
<property name="suffix" value=".jsp"></property>
</bean>
</beans>
school-springmvc.xml
<?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:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:jee="http://www.springframework.org/schema/jee"
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/jee
http://www.springframework.org/schema/jee/spring-jee-3.2.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-3.2.xsd">
<!-- Spring管理 Hibernate -->
<!-- 配置DataSource -->
<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}"/>
<property name="initialSize" value="${initialSize}"/>
<property name="maxActive" value="${maxActive}"/>
<property name="maxIdle" value="${maxIdle}"/>
<property name="minIdle" value="${minIdle}"/>
</bean> <bean id="sessionFactory" class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
<property name="dataSource" ref="dataSource"/>
<property name="packagesToScan">
<list>
<value>cn.com.yinuo.school.model.domain</value>
</list>
</property>
<property name="mappingResources">
<list>
<value>../resources/${resource.mapping.sql}</value>
</list>
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">${hibernate.dialect}</prop>
<prop key="hibernate.show_sql">${hibernate.show_sql}</prop>
<prop key="hibernate.generate_statistics">${hibernate.generate_statistics}</prop>
<prop key="hibernate.format_sql">${hibernate.format_sql}</prop>
<prop key="hibernate.use_sql_comments">${hibernate.use_sql_comments}</prop>
<prop key="hibernate.hbm2ddl.auto">${hibernate.hbm2ddl.auto}</prop>
<!--
<prop key="hibernate.connection.autocommit">${hibernate.connection.autocommit}</prop>
-->
<prop key="hibernate.cache.provider_class">org.hibernate.cache.HashtableCacheProvider</prop>
<prop key="hibernate.cache.use_second_level_cache">true</prop>
<prop key="Hibernate.current_session_context_class">thread</prop>
<prop key="hibernate.cache.use_query_cache">false</prop>
<prop key="hibernate.connection.release_mode">after_transaction</prop>
</props>
</property>
</bean> <bean id="transactionManager"
class="org.springframework.orm.hibernate3.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory"/>
</bean> <context:annotation-config/> <aop:aspectj-autoproxy proxy-target-class="true"/> <aop:config proxy-target-class="true">
</aop:config>
<!-- 注解配置事务-->
<tx:annotation-driven transaction-manager="transactionManager" proxy-target-class="true" /> <!--
<tx:advice id="txAdvice" transaction-manager="transactionManager">
<tx:attributes>
<tx:method name="add*" propagation="REQUIRED" read-only="false" rollback-for="Exception" />
<tx:method name="update*" propagation="REQUIRED" read-only="false"/>
<tx:method name="insert*" propagation="REQUIRED" read-only="false"/>
<tx:method name="modify*" propagation="REQUIRED" read-only="false"/>
<tx:method name="delete*" propagation="REQUIRED" read-only="false"/>
<tx:method name="get*" propagation="REQUIRED" />
<tx:method name="save*" propagation="REQUIRED" read-only="false"/>
</tx:attributes>
</tx:advice> <aop:config>
<aop:pointcut id="interceptorPointCuts"
expression="execution(* cn.com.yinuo.school.InformationMaintenance.biz.service.impl.InformationServiceImpl.*(..))" />
<aop:advisor advice-ref="txAdvice"
pointcut-ref="interceptorPointCuts" />
</aop:config>
-->
</beans>
school-spring-hibernate.xml
package cn.com.yinuo.school.InformationMaintenance.web; import java.io.IOException;
import java.io.PrintWriter;
import java.util.List; import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse; import net.sf.json.JSONObject; import org.apache.log4j.Logger;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping; import cn.com.yinuo.school.InformationMaintenance.biz.service.InformationService;
import cn.com.yinuo.school.model.domain.Student;
import cn.com.yinuo.school.util.Json; @Controller
@RequestMapping("/information")
public class InformationController {
@Autowired
private InformationService informationService; private static Logger logger=Logger.getLogger(InformationController.class); @RequestMapping("/toRegister")
public String toRegister(){
return "JSP/imformation/register";
}
@RequestMapping("/addUser")
public Json addUser(HttpServletRequest request,HttpServletResponse response){
Student student=new Student();
student.setName("阿享");
student.setClassId("001001");
student.setCreditId("4365671235678931");
student.setMailBox("591137758@qq.com");
student.setGender(0);
student.setPassword("janeyloveachris");
student.setType(1);
informationService.addUser(student);
Json json=new Json();
json.setSuccess(true);
json.setMsg("新增成功");
response.setCharacterEncoding("UTF-8");
response.setContentType("application/json; charset=utf-8");
PrintWriter pw=null;
JSONObject jsonObject =JSONObject.fromObject(json);
try {
pw=response.getWriter();
pw.append(jsonObject.toString());
logger.debug("返回到前台的对象是"+jsonObject.toString());
} catch (IOException e) {
e.printStackTrace();
}finally{
if(pw!=null){
pw.close();
}
}
return null;
}
}
InformationController.java
package cn.com.yinuo.school.InformationMaintenance.biz.service.impl; import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Propagation;
import org.springframework.transaction.annotation.Transactional; import cn.com.yinuo.school.InformationMaintenance.biz.dao.InformationDao;
import cn.com.yinuo.school.InformationMaintenance.biz.service.InformationService; @Transactional
@Service
public class InformationServiceImpl implements InformationService { @Autowired
private InformationDao informationDao; @Transactional(propagation=Propagation.REQUIRED,rollbackFor=java.lang.Exception.class,readOnly=false)
@Override
public void addUser(Object object) {
informationDao.addUser(object);
} @Override
public Object getAllUsers() {
return informationDao.getAllUsers();
} }
InformationServiceImpl.java
package cn.com.yinuo.school.InformationMaintenance.biz.dao.impl; import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Repository; import cn.com.yinuo.school.InformationMaintenance.biz.dao.InformationDao;
import cn.com.yinuo.school.model.domain.Student;
import cn.com.yinuo.school.model.domain.Teacher; @Repository
public class InformationDaoImpl /*extends HibernateDaoSupport */implements InformationDao { @Autowired
private SessionFactory sessionFactory; private Logger logger=LoggerFactory.getLogger(InformationDaoImpl.class); @Override
public void addUser(Object object) {
/*Session session=sessionFactory.openSession();
Transaction tc=session.beginTransaction();*/
Session session=sessionFactory.getCurrentSession();
//tc.begin();
if(object instanceof Student){
//getHibernateTemplate().save((Student)object);
//sessionFactory.getCurrentSession().save((Student)object);
session.saveOrUpdate((Student)object);
}else if(object instanceof Teacher){
//getHibernateTemplate().save((Teacher)object);
session.save((Teacher)object);
}
//tc.commit();
//session.flush();
System.out.println((1/0));
} @Override
public Object getAllUsers() {
//super.getHibernateTemplate().find("");
Student st=new Student();
Query query=sessionFactory.openSession().createQuery("from "+st.getClass().getName());
logger.debug(query.getQueryString());
return query.list();
} }
InformationDaoImpl.java
后来师父找到了我的问题所在：在springmvc.xml在扫描包的时候缺少了：use-default-filters="false"
<context:component-scan base-package="cn.com.yinuo.school" use-default-filters="false" >
<context:include-filter type="regex" expression="cn.com.yinuo.*.web.*Controller$"/>
</context:component-scan>
添加之后，去掉spring-core.xml中的
<context:component-scan base-package="cn.com.yinuo.school">
<context:exclude-filter type="regex" expression="cn.com.yinuo.*.web.*Controller$"/>
<!-- <context:exclude-filter type="regex" expression=".*ServiceImpl$" /> -->
</context:component-scan>
以及service的配置执行发现事务同样起到作用了。
去掉我的其他配置，同时不加use-default-filters="false"，会报错 session没有绑定。
师父参照的博客文章地址：http://blog.****.net/shuwei003/article/details/7281792