Spring

In this short tutorial, I am going to share with you how to enable CrossOrigin in a RESTful Web Service API built with Spring Boot that also has Spring Security enabled. Enable CrossOrigin for Specific Endpoint  To enable cross-origin AJAX HTTP requests to a specific RESTful Web Service endpoint in our Rest Controller class we can use…

Read More CrossOrigin and CORS in RESTful Web Service

In this tutorial, we will create a Spring Boot application which demonstrates how we can add and use the H2 in-memory database in our application. You will learn how an in-memory database like H2 can be used to develop a Spring boot application without the overhead of doing DB configuration on your machine and without…

Read More Using H2 In-memory Database in Spring Boot

This tutorial will teach you how to build a Spring Boot application and access data in a MongoDB database using the MongoTemplate APIs.   For MongoDB, we will use mLab, which provides MongoDB Database as a Service platform so that you don’t even have to install a MongoDB database on your computer.  Also, at the end…

Read More Spring Boot and MongoTemplate Tutorial with MongoDB

This tutorial will teach you how to implement pagination in your RESTful Web Services application built with Spring Boot. The code example below will demonstrate how to implement pagination for the API endpoint that returns a list of users. I assume you already have your Spring Boot RESTful Web Service built, but if you are…

Read More Pagination Tutorial with Spring Boot REST

With this Spring Boot tutorial, I will share how to handle exceptions in your RESTful Web Service application build with Spring Boot. Read the “Handling Exceptions in Project Reactor” tutorial if you use a project reactor. And to learn how to test your code for Exceptions, read the “Test for Exceptions with the JUnit” tutorial. What…

Read More Handle Exceptions in Spring Boot RESTful Service

Adding logging support to your RESTful Web Service application with Spring Boot is extremely simple. To use Spring Boot logging, you do not need to add any additional dependencies or libraries to your web app project other than the spring-boot-starter-web dependency. If you are working on a Spring Boot Web or a Web Services project, you…

Read More Spring Boot Logging with LoggerFactory

In this blog post, I will share how to create a very simple RESTful Spring Boot Web Service that uses Spring Data JPA to save information to a database. Our Web Service will accept HTTP Post requests with user details and then save these user details into MySQL Database using Spring Data JPA CrudRepository. For code…

Read More Spring Boot REST and JPA – Save to a Database