Introduction Here I am going to show you an example on how to return different data formats from REST API using Spring Boot framework. You may have a requirement that you need to return multiple formats, such as XML, JSON, etc., from the REST response, then this example may help you. This example will return…

Introduction Here I am going to write Junit test case for testing multiple files upload in Spring REST Controller. I have already created how to upload multiple files using Spring REST API and I also had shown how to test it through REST client tool – Postman. In this tutorial I am going to use…

Introduction Here in this tutorial I am going to show you how to upload multiple files using Spring Boot REST API. I had also shown you in my another example how to upload single file using Spring Boot REST API framework. For uploading file(s) you can use any client, for example, browser or any REST…

Introduction I am going to discuss here how to perform asynchronous request processing via Spring’s DeferredResult class. A DeferredResult can be used when the application wants to produce the return value from a thread of its own choice. A DeferredResult is what is possibly not-yet-finished computation that will be available in future. Spring MVC 3.2…

Introduction In this tutorial, I will show you how to delete multiple rows from HTML table as well as from database server at one go. You might have seen tutorial how to display data from server to client side and how to select multiple rows on HTML table. I will put checkbox against each row…

Introduction Here I will create an example on how to check/uncheck individual/all checkbox on HTML table rows. You might have seen how to display data from server using Angular and alternate row color using CSS. I will put checkbox against each row on the table so that user will be able to select a particular…

Introduction In this tutorial I am going to show you how to display data from server using Angular 9 and how to apply two different colors on alternate rows using css (cascading style sheet). I will use Spring Boot REST API to send data on client side and consume using client side technology Angular 9….

Introduction In this example you will see how to work with IN clause with WHERE condition in SQL statement in Spring Data JPA. I will use MySQL server for this example. I will fetch selected rows or multiple rows selection as well as I will delete selected rows or multiple rows deletion from the table…

Introduction This tutorial will show you an example on how to document REST APIs using OpenAPI 3. When creating a REST API, good documentation is instrumental. Here we will use OpenAPI 3 in Spring application for creating documentation for REST APIs. We create and deploy REST services but we do not have an option to…

Introduction The tutorial, REST over HTTPS with client certificate authentication, will show you how we can use client certificate to handshake with server along with basic authentication for consuming the service. Even you can use header authentication along with client certificate to make more secure. I will create Spring Boot application on Spring REST API…

Introduction We will see the use of @WebMvcTest annotation in Spring MVC applications. The Spring MVC application may be Spring Boot application as well. The @WebMvcTest annotation can be used not only to test Spring Controllers but also Spring REST Controllers. We will build the applications using both maven and gradle tools. @WebMvcTest annotation is…

Introduction Here we will create Spring Boot Security Angular Login Logout Example which will show you how to integrate Spring Security with Angular 8 to login to the application. We will redirect user to the login page if user is not already logged in. Similarly we will redirect user to the home page if user…