It's been postponed for a long time, and now I can start it. Complete your own SCEA second part of the exam with the help of the architecture and source code to study the PetStore. PetStore is divided into four separate subroutines, each of which is a J2EE application. 1. PetStore e-commerce website (PetStore): This is a web application that allows users to purchase goods through browsers. 2. PetStore Admin Programs: It is also a web application that allows enterprise administrators to count sales data and manually accept or reject orders. But it is a fat customer program using XML instead of using a browser. 3. Order Processing Center (OPC): This is a service to handle orders and serve other corporate collaborators. A. With JMS, accept and process an XML document containing PetStore order information. B. Provide order data to PetStoreAdmin with XML. C. Send an order related to the customer with JavaMail. D. Send an XML order document to the supplier. E. Maintain the order database. 4. Supplier: A application responsible for sending a product to a customer, provides a service: a. Receive an XML order document from the OPC via JMS. B. Send goods to customers. C. Provide manual inventory management through the web page. D. Maintain the inventory database.
