Top 5 Java Web Application Technologies You Should Master in 2023

Web Development in Java

Java is a commonly used language for web development, especially on the server-side. Java web applications are distributed applications that run on the internet. Web development with Java allows us to create dynamic web pages where users can interact with the interface.

There are various ways through which you can create dynamic web pages in Java. The Java EE (Enterprise Edition) platform provides various Java technologies for web development to developers. Services like distributed computing, web services, etc. are provided by Java EE. Applications can be developed in Java without using any additional scripting language. Let us see how web applications are made via Java.

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Java Web Application 

A web application helps clients to interact with the server and access information. Java is perfect for developing large web applications too because of its ability to communicate with a large number of systems. Services like peer-web services, database connectivity, and back-end services can also be accessed via Java web development.

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There are many platforms in Java for web development. Let us see some of the prominent Java web application technologies, which are used to create Java web applications.

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Java Web Application Technologies

1. Servlet API 

The javax.servlet package comes with many interfaces like servlet, filter, filter chain, servletconfig, etc. Servlet increases the capability of servers that are used to host applications. The web applications developed via servlet in Java follow the request-response model. A servlet has a life cycle starting from being initialized to getting collected by the garbage collector.

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Servlets provide a platform-independent service to its users for web development. Besides building dynamic web pages, servlets also help in many other processes like collecting input via web page forms, presenting data from a database or any third-party source, etc.

The servlets are Java programs that run on a web application and transfer the request coming from clients to the databases/ servers. The servlets help in processing the client’s request and then providing results after communicating with the database.

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2. JSP

JavaServer Pages (JSP) technology is used by developers to create web content rapidly, which is platform and server independent. Instead of having separate CGI (Common Gateway Interface) files for embedding dynamic elements in HTML pages, one can use JSP technology, which has access to the entire family of Java APIs.

Web development can be done easily with the help of special JSP tags, which helps in inserting a Java code in HTML pages. A JSP page contains static data that can be written in HTML, WML, XML, etc. and JSP technology elements, which govern the dynamic movement of web content. You can add snippets of servlet code directly in a text-based document via the JSP technology. JSP is a prominent technology provided by Java EE, which helps developers to build complex dynamic web pages rapidly.

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Java Database Connectivity (JDBC) contains methods and queries for accessing the database. Clients can update any information in the database via web applications that contain JDBC drivers. The four types of JDBC drivers are JDBC-ODBC Bridge Driver, Native Driver, Network Protocol Driver, and Thin Driver, are used to connect to the database.

Clients can connect to the database via applications made via JDBC API and can update, delete, save, and access data. JDBC is capable of reading any database and automatically creates an XML format of the data from the database.

Both synchronous and asynchronous processing can be done via JDBC API. The processed results are shown in a very simple way to the clients via JDBC. It supports many SQL statements and queries that can be used to connect to the database.

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4. Java Persistence API

Java Persistence API (JPA) uses object-relational mapping to connect an object-oriented model to the database. Relational data in Java applications can be easily managed via Java Persistence. It helps in the storage or retrieval of a large amount of data in/ from the database persistently.

You don’t have to use lots of code, proprietary frameworks, etc. for interacting with the database, JPA will provide you with simple means of communication with the database using an object-relational approach. JPA is a collection of efficient classes and methods that can connect you to the database. 

5. JavaServer Faces Technology

JavaServer Faces (JSF) Technology is a UI framework to create web-based interfaces. JSF provides a simple model for yielding components in various scripting/ markup languages. The UI widgets are connected with the data sources and server-side event handlers. Existing standard UI components can be reused and extended in the construction of interfaces via JSF. JSF helps in reducing the efforts in creating and maintaining web applications

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What Next?

If you wish to improve your Java skills, you need to get your hands on java projects. If you’re interested to learn more about Java, full stack development, check out upGrad & IIIT-B’s Executive PG Programme in Software Development- Specialisation in Full Stack Development which is designed for working professionals and offers 500+ hours of rigorous training, 9+ projects, and assignments, IIIT-B Alumni status, practical hands-on capstone projects & job assistance with top firms.

What are the two types of Java?

Java Stand-Alone Applications and Java Applets are the two types of Java programs. The Java Stand-Alone Application is a Java program that can operate independently on a computer. It is further distributed into two categories: Console-based and Graphical User Interface-based applications. The Acrobat Reader is the perfect example of this. The Java Applets are the applications which operate within the web browser. They are majorly used for Internet programming to perform various tasks such as playing sounds, displaying graphics, accepting user input, and more.

How is Java used in advanced technologies?

Java is divided into two parts: Core Java and Advanced Java. The latter is designed to create web-based, network or enterprise applications. These include concepts such as Server, JDBC, RMI, JSP, Socket Programming and more. The applications which are developed by advanced Java utilize two-tier architecture. By using advanced Java, you simplify the complexity of creating an application. The server and containers also provide framework services. You can also work with Apache Tomcat and Glassfish using this.

What are Microservices in Java?

The set of software applications that are written in the Java programming language that works with each other to construct a bigger solution is called Java microservices. Every microservice can do very minimally to create a pretty modularized architecture. The microservice behaves like a station in an assembly line as each station is responsible for a single specific task. This creates a quality workflow, consistency, efficiency and outputs. This leads us to believe that each microservice is one small piece of a bigger overall system. The tasks are simple such as counting the number of words in the text or calculating the standard deviation of the input data set.

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