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Java Servlet Set/Get Example

One of the main challenges for every beginner in the development world is to understand and assimilate how things works internally in a technology in order to create their own code. More than that, make this code working, flexible, standardized and functional for a project that, most of the times, is already running. Servlets are known for their complexities regarding ...

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Java Servlet Hello World Example

Servlets are essentially the first and main technology in Java world capable of dynamic page generation, now in its version 4.0 (released on September 2017). The term suggests a new way to receive HTTP requests, process them and return the proper response to the clients, all of that through the extension of a server or a web container capabilities, such ...

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Java Servlet and JSP Example

In this article we will demonstrate a simple Servlet and JSP example using the maven cargo plugin from the command line. We will also cover, albeit briefly, the functioning of both Servlet and JSP constructs within the Servlet Container in terms of how they are used to satisfy a HTTP request. The sample application will greet you with your name, ...

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Java Servlet Container Example

In this article we will demonstrate deploying and running a simple web application via a servlet container. In addition to demonstrating how to run the sample web application using a servlet container will also show how to run the sample web application using maven from the command line. For this article we will make use of Tomcat 8.5.x both for ...

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Java Servlet File Download and File Upload Example

Hello readers, in this tutorial, we will show you how to set up the File Upload and Download functionality in a Servlet based Java web application. Table Of Contents 1. Introduction 1.1 What is Servlet? 1.2 Servlet File Upload 1.3 Servlet File Download 2. Java Servlet File Download and File Upload Example 2.1 Tools Used 2.2 Project Structure 2.3 Project ...

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Java Servlet Security Example

The @ServletSecurity annotation is used to define the access control or the security constraints to the servlets. In this tutorial, we will see how to configure the Basic Authentication in the servlets. 1. Introduction If developers are planning on using the Basic Authentication they must be aware that if they use the plain HTTP requests, the username, and password can ...

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Java Servlet Session Timeout Configuration Example

In this tutorial, we will show you how to set up the Session Timeout in a Servlet based web application. 1. Introduction Tomcat has a default timeout of 30 minutes but the default timeout depends on different web containers. The default session timeout in a web application can be configurable in two ways: 1.1 Session Timeout in the Deployment Descriptor ...

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Java Servlet Exception Handling Example

When a servlet generates an error developers can handle those exceptions in various ways, let’s say a user tries a URL that does not map to a servlet the user typically gets a 404 page. With the error listing in the deployment descriptor, we can handle those exceptions. In this tutorial, we will see how to tackle these exception handling ...

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Java Servlet ServletConfig vs ServletContext Example

Servlets are modules of the Java code that run in a server application to answer the client requests. ServletContext and ServletConfig are two important interfaces of the Servlet API which is used by Java J2EE programmer during the web application development. In this tutorial, we will see how the ServletContext and ServletConfig are different from each other. 1. Introduction The ...

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Java Servlet Session Management Example

We all know that HTTP is a stateless protocol i.e. all requests and responses are independent. But sometimes developers need to keep track of the client’s activity across the multiple requests. In this tutorial, we will see how to achieve the Session Management in Servlet Java programming. 1. Introduction Session tracking or Session management is an important feature of the ...

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