Spark (software)
Spark is a free and open-source software web application framework and domain-specific language written in Java. It is an alternative to other Java web application frameworks such as JAX-RS, Play framework and Spring MVC. It runs on an embedded Jetty web server by default, but can be configured to run on other webservers.
Original author(s) | Per Wendel |
---|---|
Initial release | 2011 |
Stable release | 2.9.3[1]
/ 8 October 2020 |
Repository | Spark Repository |
Written in | Java |
Operating system | Cross-platform (Java Virtual Machine) |
Type | Web application framework |
License | Apache License 2.0 |
Website | sparkjava |
Inspired by Sinatra, it does not follow the model–view–controller pattern used in other frameworks, such as Spring MVC. Instead, Spark is intended for "quickly creating web-applications in Java with minimal effort."[2]
Spark was created and open-sourced in 2011 by Per Wendel, and was completely rewritten for version 2 in 2014. The rewrite was hugely centered on the Java 8 lambda philosophy, so Java 7 is officially not supported in version 2 and above.
Example (Hello World)
import static spark.Spark.*;
public class HelloWorld {
public static void main(String[] args) {
get("/hello", (request, response) -> "Hello World!");
}
}
Supported template engines
Spark supports these template engines:[3]
- Apache Velocity
- FreeMarker
- Mustache
- Handlebars
- Jade
- Thymeleaf
- Pebble
- Water
- jTwig
- Jinjava
- Jetbrick
References
- "Release 2.9.3". 8 October 2020. Retrieved 18 October 2020.
- Spark Framework: An expressive web framework for Kotlin and Java
- Views and Templates - Documentation - Spark Framework: An expressive web framework for Kotlin and Java