J2EE is generally divided into the client, presentation layer, business layer, persistent layer, and EAI layer. the main mode involved is the intermediate three layers (presentation layer, business layer, and persistence layer). The following layers describe the corresponding mode. i. The presentation layer design mainly takes into account the scalability and maintainability of the presentation layer. there are mainly the following modes 1. interpreter filter 2. front-end controller mode (Front Controller) 3. context object mode (context object) 4. application controller 5. view helper mode (view helper) 6. composite view 7. server to worker Mode 8. distribution view mode (dispatcher view) 2: business layer design mainly takes into account the Business Objects, business processing and performance layer, and persistent layer calls each other. there are mainly the following modes: 1. business Delegate 2. service locator 3. session Facade mode (Session Facade) 4. business Object 5. composite entity 6. transmission object mode (transfer object) 7. encapsulation transmission object mode (transfer object receiver) 8. value List hanlder 9. application Service Mode 3: The persistence layer design mainly includes the following modes. DAO mode (Data Access Object) 2. service activator 3. domain store 4.web service broker has just begun to study the above model. Please pay more attention and criticize it. join in the J2EE mode...
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.
