import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import javax.annotation.Resource;

@Service
public class TryCatchTransaction {
 @Resource
 private ServiceA serviceA;
 @Resource
 private ServiceB serviceB;

 @Transactional
 public void exchange(){
 //一次操作1000个用户
 for(int i=0;i<1000;i++) {

 serviceA.doExchangeA();
 try {
 serviceB.doExchangeB();
 //抛出某个异常
 throw new IllegalArgumentException("抛出某个异常");
 } catch (Exception e) {

 }

 }

 }
}


@Service
class ServiceA{
 @Transactional
 public void doExchangeA(){
 //发送兑换劵,一张100元
 }

}

@Service
class ServiceB{
 @Transactional
 public void doExchangeB(){
 //记录数据到B表
 }
}