Why to use Servlet

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To develop a web application we need to handle multiple request and give the particular page, Servlet can handle multiple requests concurrently, and can synchronize requests

Servlets are a key component of Java EE (Enterprise Edition) and are used to develop web applications. Here are several reasons why servlets are used in advanced Java development:

  1. Platform Independence: Servlets are written in Java, making them platform-independent. They can run on any server that supports the Java Servlet specification, providing flexibility and portability.
  2. Server-Side Processing: Servlets enable server-side processing, allowing developers to create dynamic, interactive web applications. They handle requests from clients, process them, and generate responses, often in the form of HTML pages.
  3. Reusability: Servlets support code reuse through the use of Java classes and object-oriented programming principles. Developers can create modular components that can be easily reused in different parts of the application or even in other applications.
  4. Performance: Servlets are efficient in handling multiple requests concurrently. They can be configured to manage a pool of threads to handle incoming requests, improving performance and scalability.
  5. Session Management: Servlets provide built-in support for managing user sessions. This allows developers to create stateful web applications, keeping track of user-specific information across multiple requests.
  6. Integration with Java EE Technologies: Servlets can easily integrate with other Java EE technologies, such as JavaServer Pages (JSP), Enterprise JavaBeans (EJB), and JDBC (Java Database Connectivity), to create robust and feature-rich web applications.
  7. Security: Servlets benefit from the security features of the Java programming language and the Java EE platform. They can be configured to authenticate and authorize users, ensuring secure access to web resources.
  8. Extensibility: Servlets can be extended and customized to meet specific application requirements. Developers can implement interfaces and override methods to add custom functionality.
  9. Mature Ecosystem: Servlets have been a part of the Java EE standard for a long time, resulting in a mature and stable ecosystem. There are numerous libraries, frameworks, and tools available to assist developers in building scalable and maintainable web applications.

In summary, servlets are a fundamental technology for building Java-based web applications, offering platform independence, server-side processing, code reusability, performance, session management, integration with Java EE technologies, security features, extensibility, and a mature ecosystem.