WebService中事务的多种控制方法

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public class UpdateBussiness extends HibernateDaoSupport implements Iupdate {?

?????????public String NewBrda(String mzhm,Long brxz,String brxm,Integer brxb,
???String csny,String hkdz,String jtdh,String bxhm,String czgh) {??
?

?//开启一个独立的事务,需独立取得rowid并需将结果马上写回数据库.(手动管理)

?Session session = getHibernateTemplate().getSessionFactory().openSession();

??Transaction tran = session.beginTransaction();

??Long ll_rowid;

??GyIdentity iden = (GyIdentity)session.load(GyIdentity.class,"MS_BRDA",LockMode.UPGRADE);

??ll_rowid = iden.getValue();

??ll_rowid = ll_rowid + 1;

??iden.setValue(ll_rowid);

??try{
???session.saveOrUpdate(iden);
???tran.commit();
??}catch(Exception ex){
???tran.rollback();
???log4j.error(mzhm+","+brxm+":"+errlist.getError_1());
???return "-1";
??}finally{
???session.clear();
???session.close();
??}
??//事务结束
??

??MsYgpjId? pjid = new MsYgpjId();
??pjid.setPjlx(new Long(3));
??pjid.setYgdm(czgh);

??MsYgpj ygpj = (MsYgpj)getHibernateTemplate().get(MsYgpj.class,pjid);

??if(ygpj==null){

???log4j.error(mzhm+","+brxm+":"+errlist.getError_3());

　 //请一定注意以下语句,实现spring框架的自动事务管理时,对于根据需要返回结果，

?? //不进行事务提交时，一定要清空hibernate的缓存，

?? //如不然，webservice成功调用结束后，缓存内的数据仍会写回数据库。
???getHibernateTemplate().clear();?
???return "-3";
??}?

??getHibernateTemplate().update(ygpj);
??MsBrda brda = new MsBrda();
??brda.setBrid(ll_rowid);
??brda.setBrxb(new Long(brxb));
??brda.setBrxm(brxm);
??brda.setBrxz(brxz);
??brda.setBxhm(bxhm);
??brda.setCsny(date1);
??brda.setHkdz(hkdz);
??brda.setJtdh(jtdh);

??getHibernateTemplate().save(brda);?//需进行自动事务管理

??return mzhm_new;;
?}
}

在applicationContext.xml中自动事务管理的配置,如下:

??? <bean id="UpdateBussiness" class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean">

?????? <property name="transactionManager" ref="transactionManager"/>

?????? <property name="target" ref="UpdateHib"/>

?????? <property name="transactionAttributes">

?????????? <props>??????????

?????????? <prop key="*">PROPAGATION_REQUIRED</prop>???????????

?????????? </props>

?????? </property>

??? </bean>