注解：实现事务配置

1.配置事务作用策略不再在applicationContext.xml配置文件中设置，而是在EmpBizImpl类中通过注解的方式实现（切面、切入点的配置不再需要）

<!-- 添加事务管理器 -->        <bean id="txManager"            class="org.springframework.orm.hibernate3.HibernateTransactionManager">            <property name="sessionFactory" ref="sessionFactory"></property>        </bean>        <tx:annotation-driven transaction-manager="txManager"/>        <!-- 配置事务作用策略（基于对目标方法名进行通配符匹配） -->    <!--    <tx:advice id="txAdvice" transaction-manager="txManager">            <tx:attributes>                <tx:method name="add*" propagation="REQUIRED" />                <tx:method name="insert*" propagation="REQUIRED" />                <tx:method name="update*" propagation="REQUIRED" />                <tx:method name="modify*" propagation="REQUIRED" />                <tx:method name="delete*" propagation="REQUIRED" />                <tx:method name="del*" propagation="REQUIRED" />                <tx:method name="find*" read-only="true" />                <tx:method name="get*" read-only="true" />            </tx:attributes>        </tx:advice> -->        <!-- 指定切入点，织入切面 -->        <!-- <aop:config>            <aop:pointcut expression="execution(* biz.*.*(..))" id="myPoint" />            <aop:advisor advice-ref="txAdvice" pointcut-ref="myPoint" />        </aop:config> -->

2.EmpBizImpl类

//数据库查询：@Transactional(readOnly=true)//数据库update：@Transactional(propagation=Propagation.REQUIRED,rollbackFor={SQLException.class})package biz.impl;import java.sql.SQLException;import java.util.List;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.beans.factory.annotation.Qualifier;import org.springframework.stereotype.Repository;import org.springframework.stereotype.Service;import org.springframework.transaction.annotation.Propagation;import org.springframework.transaction.annotation.Transactional;import biz.EmpBiz;import dao.DeptDao;import dao.EmpDao;import entity.Emp;@Service("empBiz")public class EmpBizImpl implements EmpBiz {    @Autowired    @Qualifier("edi")    private EmpDao edi;    private DeptDao deptDao;    public EmpBizImpl() {        super();    }    public EmpDao getEdi() {        return edi;    }    public void setEdi(EmpDao edi, DeptDao deptDao) {        this.edi = edi;        this.deptDao = deptDao;    }    public EmpBizImpl(EmpDao edi) {        super();        this.edi = edi;    }    @Override    @Transactional(readOnly=true)    public List<Emp> findAllEmp() {        return edi.findAllEmp();    }    @Override    @Transactional(readOnly=true)    public List<Emp> findEmpByCondition(Emp e) {        // TODO Auto-generated method stub        return edi.findEmpByCondition(e);    }    @Override       @Transactional(readOnly=true)    public List<Emp> findEmpByNameParam(Emp e) {        // TODO Auto-generated method stub        return null;    }    @Override    @Transactional(readOnly=true)    public List<Emp> findEmpByExemple(Emp e) {        // TODO Auto-generated method stub        return null;    }    @Override    @Transactional(readOnly=true)    public Emp findEmpById(int id) {        // TODO Auto-generated method stub        return null;    }    @Override    @Transactional(propagation=Propagation.REQUIRED,rollbackFor={SQLException.class})    public int addEmp(Emp e) {        return edi.addEmp(e);    }    @Override    @Transactional(propagation=Propagation.REQUIRED,rollbackFor={SQLException.class})    public void modifyEmp(Emp e) {        edi.modify(e);    }    @Override    @Transactional(readOnly=true)    public List<Emp> findEmpbyPage(int pageNo, int pageSize) {        // TODO Auto-generated method stub        return edi.findEmpByPage(pageNo, pageSize);    }    @Override    @Transactional(propagation=Propagation.REQUIRED,rollbackFor={SQLException.class})    public void updateBatchEmpSal(double sal) {        edi.updateBatchEmpSal(sal);    }}