はてなブックマーク

Hot on the heels of the latest Spring Framework 4.3 mainteance release, Spring Boot 1.5.9 is now available from repo.spring.io and Maven Central. Spring Boot 1.5.9 includes over 40 fixes, improvements and dependency updates. Thanks to all that have contributed with issue reports and pull requests. How can you help? If you're interested in helping out, check out the "ideal for contribution" tag in

Dear Spring community, It is my pleasure to announce that, after more than a year of milestones and RCs and almost two years of development overall, Spring Framework 5.0 is finally generally available as 5.0.0.RELEASE from repo.spring.io and Maven Central! This brand-new generation of the framework is ready for 2018 and beyond: with support for JDK 9 and the Java EE 8 API level (e.g. Servlet 4.0),

Introduction Spring Vault provides familiar Spring abstractions and client-side support for accessing, storing and revoking secrets. It offers both low-level and high-level abstractions for interacting with Vault, freeing the user from infrastructural concerns. With HashiCorp’s Vault you have a central place to manage external secret data for applications across all environments. Vault can manage

This tutorial shows a collection of apps that use Spring Data REST and its powerful backend functionality, combined with React’s sophisticated features to build an easy-to-understand UI. Spring Data REST provides a fast way to build hypermedia-powered repositories. React is Facebook’s solution to efficient, fast, and easy-to-use views in JavaScript.

Update: a comprehensive Spring Boot + Kotlin tutorial is now available. Following the Kotlin support on start.spring.io we introduced a few months ago, we have continued to work to ensure that Spring and Kotlin play well together. One of the key strengths of Kotlin is that it provides a very good interoperability with libraries written in Java. But there are ways to go even further and allow writi

Getting started with Spring Cloud can be daunting. If you have seen the great Josh Long give his Cloud Native Java presentation, you will notice that you need to create several supporting applications before you can see your application at work. Spring Cloud CLI Launcher As part of the transition from Spring XD to Spring Cloud Dataflow, one of the extracted projects is called the Spring Cloud Depl

As mentioned yesterday in Juergen's blog post, the second milestone of Spring Framework 5.0 introduced a new functional web framework. In this post, I will give more information about the framework. Keep in mind the functional web framework is built on the same reactive foundation that we provided in M1 and on which we also support annotation-based (i.e. @Controller, @RequestMapping) request handl

This article will explain in depth how to tackle issues related to database compatibility and the deployment process. We will present what can happen with your production applications if you try to perform such a deployment unprepared. We will then walk through the steps in the lifecycle of an application that are necessary to have zero downtime. The result of our operations will be applying a bac

One of the nice things about working for Pivotal is that they have a great agile development division called Pivotal Labs. The teams within Labs are big proponents of Lean and XP software methodologies such as pair programming and test-driven development. Their love of testing has had a particular impact on Spring Boot 1.4 as we've started to get great feedback on things that could be improved. Th

Update: a comprehensive Spring Boot + Kotlin tutorial is now available. Just in time for Kotlin 1.0 release, we are adding support for Kotlin language to https://start.spring.io in order to make it easier to start new Spring Boot projects with this language. This blog post is also an opportunity for me to explain why I find this language interesting, to show you a sample project in detail and to g

This guide shows you how to build a sample app doing various things with "social login" using OAuth 2.0 and Spring Boot. It starts with a simple, single-provider single-sign on, and works up to a client with a choice of authentication providers: GitHub or Google. The samples are all single-page apps using Spring Boot and Spring Security on the back end. They also all use plain jQuery on the front

Like most Spring Getting Started guides, you can start from scratch and complete each step or you can bypass basic setup steps that are already familiar to you. Either way, you end up with working code.

It has sometimes been suggested that Spring and Spring Boot are "heavyweight", perhaps just because they allow apps to punch above their weight, providing a lot of features for not very much user code. In this article we concentrate on memory usage and ask if we can quantify the effect of using Spring? Specifically we would like to know more about the real overhead of using Spring compared to othe

This guide walks you through building a simple iOS client that consumes a Spring MVC-based RESTful web service. You will build an iOS client that consumes a Spring-based RESTful web service. Specifically, the client will consume the service created in Building a RESTful Web Servce. The iOS client will be accessed through the iOS Simulator, and will consume the service accepting requests at:

One behalf of the Spring Boot team, and everyone that has contributed, I am pleased to announce that Spring Boot 1.3.0 has been released and is available now from repo.spring.io, Maven Central and Bintray. This release adds a significant number of new features and improvements and builds on the latest release of the Spring Framework. For full upgrade instructions and "new and noteworthy" features

In this article we look at how to bind a Spring Boot application to data services (JDBC, NoSQL, messaging etc.) and the various sources of default and automatic behaviour in Cloud Foundry, providing some guidance about which ones to use and which ones will be active under what conditions. Spring Boot provides a lot of autoconfiguration and external binding features, some of which are relevant to C

This guide walks you through the process of creating a server application that can receive HTTP multi-part file uploads. You will create a Spring Boot web application that accepts file uploads. You will also build a simple HTML interface to upload a test file.

This is the first of several blog entries. In this session, you will see how to get a bare-bones Spring Data REST application up and running quickly. Then you will build a simple UI on top of it using Facebook’s React.js toolset.

Introduction NOTE: Revised July 2019 A simple example of setting up a microservices system using Spring, Spring Boot and Spring Cloud. Microservices allow large systems to be built up from a number of collaborating components. It does at the process level what Spring has always done at the component level: loosely coupled processes instead of loosely coupled components. For example imagine an onli

This guide walks you through creating asynchronous queries to GitHub. The focus is on the asynchronous part, a feature often used when scaling services. You will build a lookup service that queries GitHub user information and retrieves data through GitHub’s API. One approach to scaling services is to run expensive jobs in the background and wait for the results by using Java’s CompletableFuture in