When the control reaches the catch block, a SOAP request is prepared using a cached body, and a Web service is invoked.
当执行到 catch 块时,将使用缓存的主体准备 SOAP 请求,并随后调用 Web 服务。
3
If it is just seconds you are talking about (and not minutes or hours), and you control the server-side, you can have the request processing block until the file is created.