Spring Tutorials

Failed to start bean ‘documentationPluginsBootstrapper’; nested exception is java.lang.NullPointerException

You might encounter the “Failed to start bean 'documentationPluginsBootstrapper'; nested exception is java.lang.NullPointerException” error while upgrading Spring Boot and Swagger […] Continue reading »

Spring Boot- Disable Spring banner at startup

In your Spring Boot application, you can disable the Spring logo banner at the startup of the application. It can […] Continue reading »

How to change default banner text in Spring Boot

In this tutorial, you will learn how to change the default Spring Boot banner text with your own custom banner […] Continue reading »

Spring Boot Cookies Example

In this article, we’ll explore how to use cookies in the Spring Boot application. A cookie is a small piece […] Continue reading »

Generate QR Code using Spring Boot REST API

This tutorial will help you to expose REST API to generate the QR Code using the Spring Boot framework. QRGen library […] Continue reading »

Spring Boot + MongoDB CRUD Example

In this article, we’ll build a Spring Boot REST API which performs the create, read, update, and delete (CRUD) operation […] Continue reading »

Spring Data MongoRepository Interface Methods Example

In this article, we’ll explore the methods available in the MongoRepository interface provided by Spring Data in the package org.springframework.data.mongodb.repository. […] Continue reading »

How to connect Spring Boot application with MongoDB

This guide will help you to establish a database connection bridge between the Spring Boot application and MongoDB database. You […] Continue reading »

Getting Started with Spring Boot and MongoDB

In this article, we’ll learn how to connect the Spring Boot application with the MongoDB database and access data from […] Continue reading »

Spring Boot – Handling Errors in WebClient

In this guide, we’ll learn how to handle WebClient errors. The retrieve() method in WebClient throws a WebClientResponseException whenever the […] Continue reading »

Spring Boot– Consuming a REST Services with WebClient

In this guide, we’ll show how to consume REST services with WebClient. Spring WebFlux includes a reactive, non-blocking (asynchronous) WebClient […] Continue reading »

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