spring 框架@Transactional 不回滚 解决办法

参照路径

http://stackoverflow.com/questions/17224887/java-spring-transactional-method-not-rolling-back-as-expected

简单说明一下：

public class Service {
    MyDAO dao;

    public void insertCollection(RecordCollection collection){
        while (collection.size() > 1){
            Record1 record1 = collection.removeFirst();
            Record2 record2 = collection.removeFirst();
            doBoth(record1, record2);
        }
    }

    @Transactional (rollbackFor = Exception.class, propagation = Propagation.REQUIRES_NEW)
    public void doBoth(Record1 record1, Record2 record2){
        method1(record1);
        method2(record2);
    }

    @Transactional(propagation = Propagation.REQUIRED)
    public void method1(Record1 record){
        dao.insertIntoA(record);
    }

    @Transactional(propagation = Propagation.REQUIRED)
    public void method2(Record2 record){
        dao.insertIntoB(record);
    }

    public void setMyDAO(final MyDAO dao) {
        this.dao = dao;
    }
}

就是，如果 @Transactional 在一个类里面，是不好用的。也就是同一个类里面，没有@Transactional的方法调用有@Transactional的方法，不会实现事务功能。

要改成如下（两个类分开写）。

public class Foo {
    public void insertCollection(RecordCollection collection){
        Service myService = new Service();
        while (collection.size() > 1){
            Record1 record1 = collection.removeFirst();
            Record2 record2 = collection.removeSecond();
            myService.doBoth(record1, record2);
        }
    }
}

public class Service {
    MyDAO dao;

    @Transactional (rollbackFor = Exception.class, propagation = Propagation.REQUIRES_NEW)
    public void doBoth(Record1 record1, Record2 record2){
        method1(record1);
        method2(record2);
    }

    @Transactional(propagation = Propagation.REQUIRED)
    public void method1(Record1 record){
        dao.insertIntoA(record);
    }

    @Transactional(propagation = Propagation.REQUIRED)
    public void method2(Record2 record){
        dao.insertIntoB(record);
    }

    public void setMyDAO(final MyDAO dao) {
        this.dao = dao;
    }
}

也就是要另外写一个类，调用含有@Transactional的方法。这样就好用了。