Web Application Server(WAS)

HTTP

all web browsers communicate through HTTP client -> internet -> server

Server vs WAS(web application server)

  1. Web Server - HTTP, static content(HTML, CSS, JS, IMAGES, VIDEO), etc….
  • in simple terms, it’s a server that hosts and serves content to the client, used for simple tasks like serving static files, managing client connections, and handling basic request-response. ex: NGINX, APACHE
  1. WAS - Web Server + dynamic content, runs application logic code to provide dynamic HTML, API (JSON), SERVLET, JSP, SPRING MVC
  • WAS provides an environment where developers can build, deploy, and run applications that process and generate dynamic content. KEY FEATURES
  • middleware services: security, transaction management, messaging, etc..
  • Application Deployment: deploying and managing web applications.
  • Scalability: load balancing and distributing application load across multiple instances.
  • Database Connectivity: connect to databases to fetch and update data ex: Apache Tomcat, Jetty, Undertow, Oracle WebLogic.
  1. DIFFERENCE
  • static (web server) vs dynamic(was)
  • terminology is used interchangeably in java, we call something as WAS if it has a servlete container(although some modern exceptions exist)
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