Web服务交易控制

Question

I'm working on some remote api invoking recently. This is the background.

In a transaction, let's say a payment workflow, after the customer finished his payment successfully through paypal api, I need to update my local db (let's say update order_table, update score_table).

It would be like this:

Whole Transaction
{
invoking paypal api - success
update order_table - success
update score_table - failed
}

If the invoking paypal api is a local method invoking like update xxx_table, it would be very straightforward, the whole transaction will rollback, but in a remote api invoking, I just can't rollback it.

Here comes the question, do we have a universal solutions for this case?

Any suggestion would be appreciated.

Answer 1

If the webservices are under your control you could use something like JBoss WS-Transactions or something similar, depending on your environment.

When accessing third party webservices it depends on whether they provide a functionality like that, if not you'd have to do the rollback yourself.

Besides that distributed transactions might cause more problems than they solve so you should carefully think about whether you really need them.