J**a EE (J**A Platform, Enterprise Edition) and J**a Web are two related but distinct concepts in the J**A programming language. Each of them is aimed at different development needs and application scenarios.
J**A EE is an enterprise-level application development platform based on J**A SE (Standard Edition). It provides a more comprehensive set of APIs and runtime environments for developing large, distributed, multi-layered web applications. J**a EE includes the following features:
Multi-tier architecture: supports the development of enterprise-level applications at the presentation layer (web layer), business logic layer, and persistence layer.
Componentization: Includes a variety of component models, such as EJB (Enterprise J**Abeans).
Service integration: provides a series of services and APIs, including JMS (J**A Message Service), JPA (J**A Persistence API), JTA (J**A Transaction API), Jax-RS (J**A API for RESTful Web Services), etc.
Containers and services: Uses servers or containers (e.g., Wildfly, Glassfish, WebLogic, etc.) that provide services such as transaction management, security, and concurrency processing.
Applicable scenarios: Suitable for large-scale enterprise-level applications, such as banking, insurance, and large-scale e-commerce systems.
J**a Web generally refers to the development of browser-based web applications using J**A technology. It can be part of the J**A EE or independent of the J**A EE. Key features of J**a Web include:
web center: Focus on developing client-side and server-side web interactive applications.
Core technology: Servlets, JSP (j**aserver pages), jsf (j**aserver faces), etc.
Lightweight framework: Various lightweight J**A web frameworks such as Spring MVC can be used.
Deployments and containers: It is usually deployed on a web container (such as Tomcat) or an application server.
Applicable scenarios: Suitable for web application development of all sizes, from small** to enterprise-level applications.
j**a eeIt is a comprehensive enterprise-level application development platform that includes a variety of technologies and services for developing large-scale enterprise applications.
j**a webMore to web application development, which can be part of the J**a EE, but can also be used independently, especially in lightweight application development.
While there is overlap (e.g., web application development), J**a EE offers a broader range of enterprise-level features and services, while J**a Web is more focused on web-based applications. With the popularity of frameworks such as Spring, many J**a web applications now tend to use these lightweight frameworks rather than relying on the full J**a EE platform.