spring事务应用方式

今天有同事问一个j2ee事务的问题，做个小的总结：
   1、基于注解的事务
     在类和方法上配置类似
     

 @Transactional(propagation=Propagation.SUPPORTS,readOnly=true)

代码的
   2、基于配置文件的事务
      在xml文件配置类似

<tx:advice id="txAdvice" transaction-manager="transactionManager">
        <tx:attributes>
            <tx:method name="save*" propagation="REQUIRED"/>
            <tx:method name="insert*" propagation="REQUIRED"/>
            <tx:method name="update*" propagation="REQUIRED"/>
            <tx:method name="delete*" propagation="REQUIRED"/>
            <tx:method name="remove*" propagation="REQUIRED"/>
            <tx:method name="clean*" propagation="REQUIRED"/>
            <tx:method name="batch*" propagation="REQUIRED"/>
            <tx:method name="*" read-only="true"/>
        </tx:attributes>
    </tx:advice>
    <aop:config>
        <aop:pointcut id="allManagerMethod" expression="execution( * org.crazystone.car.service.*.*(..))"/>
        <aop:advisor advice-ref="txAdvice" pointcut-ref="allManagerMethod"/>
    </aop:config>

配置的
   3、硬编码的事务
    这种也是我同事需要的那种，希望硬编码控制的类似
  

 /**
 * CardRecordService.java
 * org.crazystone.car.service
 *
 * Function： TODO 
 *
 *   ver     date      		author
 * ──────────────────────────────────
 *   		 2012-8-30 		zhangzenglun
 *
 * Copyright (c) 2012, TNT All Rights Reserved.
*/

package org.crazystone.car.service;

import org.crazystone.car.dao.CarRecordDAO;
import org.crazystone.car.util.model.CarRecord;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.PlatformTransactionManager;
import org.springframework.transaction.TransactionStatus;

/**
 * ClassName:CardRecordService
 *
 * @author   zhangzenglun
 * @version  1.0
 * @since    v1.0
 * @Date	 2012-8-30 下午6:37:38 
 */


@Service
public class CardRecordService  {
	@Autowired
	CarRecordDAO carRecordDAO;
	@Autowired
	PlatformTransactionManager transactionManager;


	public void batchSave() {
		
		//DefaultTransactionDefinition definition = new DefaultTransactionDefinition();
		TransactionStatus transactionStatus = transactionManager.getTransaction(null);
		try {
			CarRecord record = null;
			
			//record = new CarRecord();
			record.setCarid("131");
			record.setCartype("d");
			record.setCollectionAuthority("d");
			record.setDealSign("");
			this.carRecordDAO.insertNoPk(record);
			record = new CarRecord();
			record.setCarid("121");
			record.setCartype("d");
			record.setCollectionAuthority("d");
			record.setDealSign("");
			this.carRecordDAO.insertNoPk(record);
			transactionManager.commit(transactionStatus);
		} catch (Exception e) {
			e.printStackTrace();
			transactionManager.rollback(transactionStatus);
		}
		
		
	}

	public void batchSave2() {
		//DefaultTransactionDefinition definition = new DefaultTransactionDefinition();
			TransactionStatus globalTransactionStatus = transactionManager.getTransaction(null);
			try {
				
				CarRecord record = null;
				record = new CarRecord();
				record.setCarid("131");
				record.setCartype("d");
				record.setCollectionAuthority("d");
				record.setDealSign("");
				this.carRecordDAO.insertNoPk(record);
				
				
				TransactionStatus localTransactionStatus = transactionManager
						.getTransaction(null);
				record = new CarRecord();
				record = null;
				record.setCarid("121");
				record.setCartype("d");
				record.setCollectionAuthority("d");
				record.setDealSign("");
				this.carRecordDAO.insertNoPk(record);
				transactionManager.commit(localTransactionStatus);
				
				transactionManager.commit(globalTransactionStatus);
				
				
			} catch (Exception e) {
				transactionManager.rollback(globalTransactionStatus);
			}
			
		
		
		
	}
	
}

这种代码的