servlets

Servlet

• A servlet is a class that extends HttpServlet class that you will use to receive HTTP requests as methods and reply back with stuff (usually HTML)
• A servlet container  is an application server that implements some version of the Java Servlet Specification.
• https://www.wikiwand.com/en/articles/Web_container
• Examples:
  • Apache Tomcat
  • Jetty
  • Glassfish
  • Wildfly

Jersey

• Java library for both serving and calling REST (or mainly HTTP, since not everything is REST) APIs
• It’s build on JAX-RS specification, and it can be used on any server that implements these specifications, e.g. Tomcat

Netty

• Netty is an NIO client server framework which enables quick and easy development of network applications such as protocol servers and clients
• It greatly simplifies and streamlines network programming such as TCP and UDP socket server

Reactor Netty

• Suited for Microservices Architecture, Reactor Netty offers non-blocking and backpressure-ready TCP/HTTP/UDP/QUIC clients & servers based on Netty framework
• dependencies on:
  • reactive core
  • reactive streams
  • netty