tailieunhanh - ColdFusion Developer’s Guide phần 10

Để biết thêm thông tin, xem "nhiệm vụ báo cáo thông thường và kỹ thuật" trên trang 823 và Trợ giúp trực đảm bảo một báo cáo thành công, bạn nên có kế hoạch sau đây trước khi xác định trong Báo cáoBáo cáo thiết kế các vấn đề: Đối tượng: | 106 Chapter 56 Using Event Gateways Adobe ColdFusion provides event gateways which you can use when writing applications. You configure an event gateway for an application and deploy the application. To use event gateways you should have a thorough knowledge of ColdFusion development concepts and practices including ColdFusion components CFCs . To write applications for custom gateways that are not provided in ColdFusion you must also know the details of the event gateway you are using including its requirements. Contents About event Event gateway facilities and Structure of an event gateway Configuring an event gateway Developing an event gateway Deploying event gateways and Using the CFML event gateway for asynchronous Using the example event gateways and gateway applications . 1077 About event gateways ColdFusion event gateways are ColdFusion elements that let ColdFusion react to or generate external events or messages in an asynchronous manner. Event gateways let a ColdFusion application handle information that does not come through an HTTP request. For example you can use event gateways to handle instant messages short messages from mobile devices or messages sent to a TCP IP port. The event gateway mechanism has the following major features ColdFusion event gateways do not require HTTP requests. ColdFusion developers can write ColdFusion gateway applications without using any CFM pages just CFCs . ColdFusion CFCs can use event gateways to listen for and respond directly to external events. Event gateways operate asynchronously. A gateway typically gets a message and dispatches it for processing without requiring or waiting for a response. ColdFusion developers can create event gateways to handle any kind of event that a Java application can receive. ColdFusion includes several product-level event gateways such as a gateway for the XMPP Extensible Messaging and