This tutorial describes how to install a single SSL certificate on multiple Tomcat nodes. 1. Generate CSR The first thing you should do before generating an SSL certificate is to...
In order to access a web application deployed on Tomcat, it is required by default to write the application name in the URL. However, getting rid of the application name...
In this tutorial, we describe 2 ways for deploying Java web applications on Tomcat application server. 1. War file The typical way for deploying a Java web application on Tomcat...
Jackson library is used with most REST/JSON applications in order to dynamically convert JSON to POJO and POJO to JSON. This tutorial explains how to solve the common exception raised...
XML is usually used to store light configuration that controls the business flow or the layout of an application, it’s meant to be managed by business users in the production...
Eclipse doesn’t provide a direct way to convert a Maven web project to a non-maven structure. In this tutorial, we provide an easy 2-steps way to do this. 1- Generate...
By default, web applications are deployed under this path: “WORKSPACE/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps” . Here below we define the needed steps to change the default deploy directory of Tomcat in Eclipse. 1- Custom Deploy Directory...
When developing a web application in eclipse, the default deploy path of java classes is “WEB-INF/classes” and every folder defined under WebContent is automatically deployed under the root path of the application....
In any web application, there exists a folder named WebContent that automatically holds .class and jar files. When running a web application in eclipse or when deploying a war file to an...
Internet of Things is continuously changing the way we work or handle the businesses. The impacts are so powerful and fascinating that nobody can decline them. The connectivity is becoming...
This tutorial shows several ways to write content to a text file in Java. The techniques used below are pure JDK and don’t use external libraries. 1- BufferedWriter The most...
This tutorial shows several ways for reading plain text files in Java. The techniques we use here are totally JDK built-in and don’t depend on external libraries. 1- BufferedReader The...
This tutorial shows several ways for reading input from a console in Java. Before listing the ways, it’s worth to define System.in as it’s used by most reading ways. System.in...
Although the main purpose of XML documents is to store lightweight data for faster processing, they are still used in some small applications as a data store which requires dynamic...
STAX is yet another parser for reading and parsing XML documents in Java, it is very similar to SAX where they both parse the XML document on call and provide...
In the previous article we talked about DOM parser and provided different examples for parsing and reading elements of an XML document. SAX parser is yet another XML parser provided...
In this tutorial, we show how to create a new XML file using DOM parser provided by JDK. We’re going to create an XML called students.xml which lists students along...
In this tutorial, we show how to read and parse an XML file using DOM parser provided by JDK. If you’re interested in SAX or STAX parser, please refer to these tutorials: SAX parser, STAX...
ClassNotFoundException and NoClassDefFoundError occur when a required class is not found in the classpath at runtime. In this tutorial, we resolve the conflict between these 2 exceptions and explain the different...
This tutorial shows several ways for iterating a Map in Java. 1- Entry Set The common way for iterating a Map in Java is through entrySet() method as the following:...
