Spark

Spark tries to be the Sinatra alternative in Java, providing a lightweight toolkit that developers can use when developing small to medium Web applications.

It was specifically coded to work with Java 8 and focuses on Web development alone, implementing all the basic utilities needed in this domain.

This means no complex XML setup routines, minimal usage of annotations, a built-in server, a routing engine, and a basic session manager.

On top of this, there's also a template engine, a view manager, and the all-needed documentation.

Spark doesn't directly compete for developers with Sinatra, since Sinatra already has a few good years of development behind it, but merely provides a similar alternative for programmers needing to work strictly in Java.

What is new in this release:

• Added Request.bodyAsBytes() (get the body as bytes without having to convert it to String)
• Moved route error info to log (from 404 page)
• Replaced all System.out/System.err with slf4j logging
• body() is now available even if "consumed" by previous filter/route (this also solves some query map related problems)
• Allow overriding of HTTP method using X-HTTP-Method-Override header
• Static resources functionality for other application servers (previously only available for the embedded Jetty)
• Fixed MimeParse Exception

What is new in version 2.2:

• Added Request.bodyAsBytes() (get the body as bytes without having to convert it to String)
• Moved route error info to log (from 404 page)
• Replaced all System.out/System.err with slf4j logging
• body() is now available even if "consumed" by previous filter/route (this also solves some query map related problems)
• Allow overriding of HTTP method using X-HTTP-Method-Override header
• Static resources functionality for other application servers (previously only available for the embedded Jetty)
• Fixed MimeParse Exception

What is new in version 2.1:

• Added Request.bodyAsBytes() (get the body as bytes without having to convert it to String)
• Moved route error info to log (from 404 page)
• Replaced all System.out/System.err with slf4j logging
• body() is now available even if "consumed" by previous filter/route (this also solves some query map related problems)
• Allow overriding of HTTP method using X-HTTP-Method-Override header
• Static resources functionality for other application servers (previously only available for the embedded Jetty)
• Fixed MimeParse Exception