Introduction Here I am going to show you how to change context path of web application in Tomcat server. So, basically web applications are deployed into Tomcat server and meaningful, memorable context paths are assigned for web applications. Even if you do not want to set any context path for an application, you can do…

Introduction Here I am going to show you how to create users in Tomcat server to manage applications, server status, etc. When you deploy application into Tomcat server, generally you put the war archive files under webapps folder of the Tomcat server. You can easily access the application once it is successfully deployed through its…

Table of Contents Introduction Prerequisites Project Setup MySQL Table DataSource Config Entity Class Repository Interface Service Class Spring Web Controller Spring Boot Main Class UI (User Interface) Testing Multi Steps Form Source Code Introduction In this example I am going to show you how to build multisteps form using Spring Boot thymeleaf jquery. Multi steps…

Table of Contents Introduction Prerequisites Project Setup Setup ngx-lightbox App Module Configuration Update Title App Component App HTML App Styles Testing Angular Photo Gallery Source Code Introduction In this example I am going to show you how to create photo gallery in Angular application. Photo gallery also known as image gallery or media gallery or…

Table of Contents Introduction Prerequisites Angular Project Settings Gradle Properties Spring Boot Project Build App Testing Angular Spring Boot Integration Source Code Introduction In this tutorial I will show you how to integrate Angular into Spring Boot using Gradle build tool. So, let’s say you have two different projects – Angular application and Spring Boot…

Table of Contents Introduction Prerequisites Angular App In Existing Folder Introduction In this example I am going to tell you how to create Angular project in existing folder. So, when you create a new Angular application using ng new angular-app command, where angular-app is the application’s or project’s name, then a new folder angular-app gets…

Table of Contents Introduction Prerequisites Project Setup Install okta-auth-js Service Auth Service Token Service Auth Guard Components Implementing Okta Auth Role Based Access Environment Variables App Modules Routing Module Token Service Auth Service Auth Guard Expired Component Unauthorized Component Login Component App Component Dashboard Component Protected Component Update Page Testing Okta SSO Role Based Access…

Table of Contents Introduction Why Does 404 Error Occur Solution Introduction Here in this tutorial I am going to show you how to redirect to context path for 404 error in Angular Spring Boot application. Context path basically is the same path for home page or root URL. It is assumed that your frontend application…

Introduction Here I am going to tell you how to setup multiple environments for Angular applications. Multiple environments are required for your Angular application when you want to ensure the stability and integrity of the application when it goes live on the production environment where your application’s end users access it. Your application’s development workspace…

What is integrity attribute? You might have seen the integrity attribute as well as crossorigin attribute in web page source code. The integrity and crossorigin attributes are used in the <script> and <link> tags. This is also called subresource integrity because it is included into the third party resources which are parts of the HTML…

Introduction In this example I am going to show you how to call REST APIs using javax.net.ssl.HttpsURLConnection. So, I am using plain Java code to send or receive data to or from the REST APIs. I am also going to show you how to send authentication token in the HTTP header. I am also going to…

Introduction In this tutorial I am going to show you how to build Spring Boot Angular CRUD Application. CRUD is an acronym and stands for Create, Read, Update and Delete operations performed through an application or APIs. Using Spring Boot application I will build REST APIs which will be used to perform CRUD operations on…