通过基于注解的声明式事务实现事务功能~2

//通常情况下，第一二种我们是不进行设置的，因为所有的运行时异常都会被回滚
rollbackFor属性：需要设置一个Class类型的对象
rollbackForClassName属性：需要设置一个字符串类型的全类名
noRollbackFor属性：需要设置一个Class类型的对象
rollbackFor属性：需要设置一个字符串类型的全类名

@Transactional(noRollbackFor = {ArithmeticException.class})

@Transactional(noRollbackForClassName = "java.lang.ArithmeticException")

读未提交：READ UNCOMMITTED
允许Transaction01读取Transaction02未提交的修改
读已提交：READ COMMITTED
要求Transaction01只能读取Transaction02已提交的修改
可重复读：REPEATABLE READ
确保Transaction01可以多次从一个字段中读取到相同的值，即Transaction01执行期间禁止其他事务对这个字段进行更新
串行化：SERIALIZABLE
确保Transaction01可以多次从一个表中读取到相同的行，在Transaction01执行期间，禁止其他事务对这个表进行添加，更新，删除操作，可以避免任何并发问题，但性能十分低下

//一般将其设置为默认值
@Transactional(isolation = Isolation.DEFAULT)

package spring_txAnnotation.Service;
public interface CheckOutService {
    void Checkout(Integer userId, Integer[] bookId);
}

package spring_txAnnotation.Service;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import spring_txAnnotation.Controller.BookController;
@Service
public class CheckOutServiceImpl implements CheckOutService{
    @Autowired
    private ServiceBook serviceBook;
    @Autowired
    private CheckOutService checkOutService;
    @Autowired
    private BookController bookController;
    public void buyBook(Integer userId,Integer bookId){
        serviceBook.buyBook(userId,bookId);
    }
    @Transactional
    @Override
    public void Checkout(Integer userId, Integer[] bookId) {//结账方法
       for(Integer bookIds:bookId){
           serviceBook.buyBook(userId,bookIds);
       }
    }
}

  @Autowired
    private CheckOutService checkOutService;
    public void Checkout(Integer userid, Integer[] integers) {
        checkOutService.Checkout(userid,integers);
    }

import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import spring_txAnnotation.Controller.BookController;
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration("classpath:TXannotation.xml")
public class Test1 {
    @Autowired
    private BookController bookController;
    @Test
    public void testBuyBooks(){
        bookController.Checkout(1,new Integer[] {1,2});
    }
}