Table of contents
Ease of Use
Spark Framework provides a simple and intuitive API, making it easy to set up and run a web application with minimal configuration.
Lightweight
Spark is very lightweight, which makes it well-suited for small applications and microservices where resource consumption is a concern.
Java 8 Lambda Support
It supports Java 8 lambdas, allowing developers to write clean, readable, and more concise code.
Rapid Development
The framework facilitates rapid development and prototyping, enabling developers to quickly build and iterate on ideas.
Minimal Configuration
With less boilerplate code required, Spark allows developers to focus on business logic rather than intricate configurations.
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The code for serving queries is found in the WebSearch class. We’re using Spark (the web framework, not the big data engine) to serve a simple search form:. - Source: dev.to / over 1 year ago
Get a solid grasp of building web applications with Java either using Spring (using Spring Boot) or Spark (if you're also new to Java learning Java and Spring can be a mouthful). Instead of JSP use something Thymeleaf or build the frontend with HTML and JavaScript (and serve the bundles). Source: almost 2 years ago
So most of the "tech" stack goes out. In our first startup we created our own web-container by using https://sparkjava.com - and then built a JSR-223 scripting support. Source: almost 2 years ago
Stack: Java, Spark (not the Apache Spark but this), Kafka, several other libraries like FasterXML's Jackson. Source: about 2 years ago
The blog is just hugo so it's 100% static files over nginx. The search engine is serverside-rendered mustache templates via handlebars[1], via served via spark[2]. It's basically all vanilla Java. I do raw SQL queries instead of ORM, which makes it quite a bit snappier than most Java applications. The sheer size of the database also mandates that basically every query is a primary key lookup. The code is written... - Source: Hacker News / over 2 years ago
Much better! By the way, how does it compare to Spark? https://sparkjava.com/. - Source: Hacker News / over 2 years ago
It's a Debian server running nginx into a bunch of custom java services that use the spark microframework[1]. I use a MariaDB server for link data, and I've built a bespoke index in Java. [1] https://sparkjava.com/ I don't use springboot or anything like that, besides Spark I'm not using frameworks. - Source: Hacker News / over 2 years ago
If you want just some small web app or something standalone without having to hassle around proper web server, etc., you can have a look at Spark Java: https://sparkjava.com/. Source: over 2 years ago
There are a huge set of web frameworks in Java that have the same example as shown on this site; I have no idea how this differs from, say, https://ratpack.io or https://sparkjava.com. This really needs some key features on the site to sell it. - Source: Hacker News / over 2 years ago
In university I learned a bit of Java, so maybe I could use it professionally I guess?. There were many options to choose from. DropWizard, Spark, Play Framework. But the more documented one in the internet I found was Springboot, besides there were some courses in spanish and some friends that knew something about Springboot, so I give it a chance. - Source: dev.to / over 2 years ago
Annotation style programming (Spring Boot, Quarkus, Micronaut, etc.) are not the only way to write web services in Java if they're not your thing (though they do make things a lot more convenient). Spark and Helidon SE offer a more imperative style of programming for example. Source: over 2 years ago
XML is pretty rare in Java code written this side of 2010. Not that it doesn't exist, but the whole spring mess is not something you really have to touch to set something up in Java. I usually enjoy Spark[1] for bootstrapping a simple REST-like interface. There are other options, but in general, you don't really need glue-languages at all if you stray away from old-fashioned EE-style frameworks. [1]... - Source: Hacker News / almost 3 years ago
I can't stand any magic, it always inevitably feels like a massive liability to me and always bites me in the ass sooner or later. I use http://sparkjava.com in my projects. It's as tiny as web frameworks get, it only handles routing and request/response, and you get to do everything else manually. Only thing I had to hack into it was response streaming. The one most internally convoluted and enterprise-y... - Source: Hacker News / about 3 years ago
I don't know what "ASP.Net-like" implies, but take a look at https://sparkjava.com/ It was quite a pleasure to use. - Source: Hacker News / about 3 years ago
When I first heard of the term "web application", I started trying to download/install and play with GlassFish and Tomcat and JBoss, etc. When one seemed too complicated I'd jump to the next. There were jars and wars and admin panels and endless configuration. Total mind-fuck. I never got the hang of them. The next time I visited web apps, Jetty was around and seemed way smoother in comparison. Microsoft's IIS... - Source: Hacker News / about 3 years ago
I'll use the Spark library to getting a “pong” to every “ping” request. - Source: dev.to / over 3 years ago
Writing integration tests is not always straightforward. By definition, integration tests require interaction between several components, and we need to deal with them in many different ways. Let’s look at some tools that will make writing and reading tests easier. I believe that Testcontainers and the Spark Framework will allow you to write shorter and more descriptive tests. - Source: dev.to / over 3 years ago
I use http://sparkjava.com in my hobby project. It mostly does what I want, but I had to hack it a bit to be able to stream responses. - Source: Hacker News / over 3 years ago
I have used https://sparkjava.com/ when I still did Java some years back. It was as thin as they come and a real joy to get started and going. - Source: Hacker News / over 3 years ago
I'm not sure if you have heard about java spark [1]. Back in the day, around 2-3 years ago we used to implemented all our java service in java spark. [1] https://sparkjava.com. - Source: Hacker News / almost 4 years ago
We use the Spark Java framework for REST API endpoints. In our main method we import the library as static and create endpoints as shown in their getting started guide and declare static handlers for GETs and POSTs, etc inside main. This seems fine to me so far (please let me know if you know of any issues with this). Source: about 4 years ago
The Spark Framework, a lightweight web framework for Java, commands a unique position among its peers in the software development community. Predominantly recognized for its simplicity and efficiency in creating REST APIs, Spark has etched its utility in environments where quick setup and minimal configuration are prioritized. This makes it an attractive choice for developers looking to streamline their processes without compromising on performance.
The framework is favorably mentioned for its ability to get up and running in minutes. Leveraging the Jetty web server by default, Spark provides a modular approach, streamlining the development process for those creating REST APIs or other high-traffic applications. The framework’s choice of an embedded server simplifies deployment, although developers have the flexibility to integrate other Java web servers, should their projects require it.
Spark's lean architecture appeals to developers who prefer to avoid the complexity and "magic" often associated with larger frameworks like Spring Boot. Unlike these heavier counterparts, Spark adheres to an imperative programming style, offering control without the complexities of annotations, dependency injection, or reactive streams. This characteristic is particularly prized by developers desiring straightforward control over request and response handling without intermediary abstractions.
In the broader sphere of Java and web development frameworks, Spark is often juxtaposed with alternatives like Javalin, Micronaut, and Helidon, as well as non-Java frameworks such as Django and ExpressJS. Yet, it maintains its niche by appealing to a segment of developers who value agility and lightweight frameworks. Developers frequently cite its speed and the ease with which novel web applications can be prototyped. However, while the simplicity of the framework is praised, some users have had to extend its functionality manually, particularly for advanced features such as response streaming, illustrating both flexibility and limits.
Integration testing within Spark is noted to be less complex compared to other frameworks, a point underscored by users who have successfully employed tools like Testcontainers for this purpose. The straightforward architecture of Spark is aligned well with these testing methodologies, enabling developers to write concise and interpretable tests without unnecessary complexity.
The framework is also seen as an effective educational tool and a viable starting point for startups. It is frequently mentioned in academic settings and startup circles for its gentler learning curve relative to larger, more feature-rich Java frameworks. The absence of extensive documentation and community support compared to giants like Spring Boot is somewhat mitigated by its minimalistic nature, which reduces the learning burden.
In summary, Spark Framework's minimalist design philosophy and pragmatic approach to web application development mark it as a favorable choice for developers seeking a swift, unencumbered framework. Its appeal lies predominantly in its simplicity, tailored particularly for projects that value direct control and expediency over feature-rich, prescriptive architectures. As software development trends continue to evolve towards microservices and lightweight applications, Spark remains a relevant and compelling option for many Java developers.
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