Java EE and Java Web

What is a Java Web application?

Java Web applications generate interactive Web pages that contain various types of markup languages (HTML and XML, etc.) and dynamic content. It is typically comprised of WEB components such as JavaServer Pages (JSP), Servlets, and JavaBeans, which can be used to modify and temporarily store data, interact with databases and WEB services, and render content based on client requests.

Because many of the tasks involved in WEB application development can be duplicated or require extra template code, you can apply a web framework to reduce the overhead associated with common activities. For example, many frameworks, such as JavaServer Faces, provide libraries for template pages and session management, and often increase the reuse rate of code.

What is Java EE?

Java EE (Enterprise Edition) is a widely used platform that includes a set of coordinated technologies that can significantly reduce costs and the complexity of developing, deploying, and managing server-centric, multi-tiered applications. Java EE is built on the Java SE platform and provides a set of APIs (application programming interfaces) for developing and running portable, robust, scalable, reliable, and secure server-side applications.

Some of the basic components of Java EE include:

• Enterprise JavaBeans (EJB): a managed, server-side component architecture for encapsulating application business logic. EJB technology accelerates and simplifies the development of distributed, transactional, secure, and portable applications based on Java technology.
• Java Persistence API (JPA): A framework that enables developers to use object-relational mapping (ORM) to manage data in applications built on the Java platform.

JavaScript and Ajax Development

JavaScript is an object-oriented scripting language that is used primarily in the client interface of a WEB application. Ajax (asynchronous JavaScript and XML) is a Web 2.0 technology that enables Web pages to change without having to perform page refreshes. The JavaScript Toolkit can be used to implement AJAX-enabled components and features in a Web page.

Source: Https://netbeans.org/kb/trails/java-ee_zh_CN.html?utm_source=netbeans&utm_campaign=welcomepage

Java EE and Java Web