Roy Tutorials

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 Inheritance/Override Testing The Application Source Code Introduction In this example I am going to show you how to inherit values from application.properties into different environments. So, if you have an application.properties file under class path folder src/main/resources and if you have different environment specific application-{env}.properties files, then you csan inherit key/value pairs from application.properties file. Even you…

Table of Contents Introduction Callback Queue Message Properties Correlation Id Prerequisites Project Setup Application Properties Configuration Server Client Main Class Output – Testing RPC Source Code Introduction In this tutorial, I am going to show you how to create Spring Boot RabbitMQ RPC Example. RPC is an acronym which stands for Remote Procedure Call, in…

Table of Contents Introduction Example Prerequisites Junit Test Case Source Code Introduction Here in this example I am going to show you how to mock super class method in Junit test class. A class that extends another class is called a child class and a class that is extended by another class is called a…

Table of Contents Introduction Topic Exchange Prerequisites Project Setup Application Properties Sender Receiver Configuration Main Class Testing Message Pattern Source Code Introduction In this tutorial I am going to show you how to build Spring Boot RabbitMQ message pattern example with TopicExchange. FanoutExchange is only capable to broadcast messages to all receivers and it has limitations to send…

Table of Contents Introduction Direct Exchange Prerequisites Project Setup Application Properties Configuration Sender Receiver Spring Boot Main Class Testing RabbitMQ Routing Application Source Code Introduction In this Spring RabbitMQ Routing example I am going to show you how to route messages to particular subscribers. Therefore, all receivers are not going to receive all messages, but…

Table of Contents Introduction Exchanges Prerequisites Project Setup Sender Receiver Exchange Name Configurations Spring Boot Main Class Testing Rabbitmq Publish Subscribe Source Code Introduction Here I am going to build an example about publish subscribe model using Spring Boot and RabbitMQ message broker. In publish subscribe model the messages will be delivered to multiple consumers….

Table of Contents Introduction Prerequisites Application Properties Producer Consumer Configuration Spring Boot Main Class Testing Work Queues Task Queues Source Code Introduction Here in this example I am going to show you how to build work queues or task queues using Spring Boot framework and RabbitMQ broker. Work queues are used to distribute time-consuming tasks…

Table of Contents Introduction Prerequisites Include Non-classpath Jars In Gradle Script Introduction Here in this example I am going to tell you how to include non-classpath jars in gradle based Java project. You may need to include non-classpath jar files in order to make your application run. Non-classpath jars are those jar files which are not included in your classpath through dependency…

Table of Contents Introduction Prerequisites CRUD Application Using CodeIngiter 4 and MongoBD MongoDB Config MongoDB Library Model Class Controller Class Views List Records Style Create Record Update Record Route Config Testing CodeIgniter 4 MongoDB CRUD Example Source Code Introduction In this example I am going to build CodeIgniter 4 MongoDB CRUD example. CRUD is an…

Table of Contents Introduction Why do you need to create Gradle project in CLI Prerequisites Create Gradle Project in CLI Introduction Here I am going to show you how to create a new Gradle in CLI (command line interface). Command line interface is basically a command prompt in Windows system and Shell terminal in Unix…