When comparing Spring-boot vs CaptainCasa Enterprise Client, the Slant community recommends Spring-boot for most people. In the question“What are the best Java web frameworks?” Spring-boot is ranked 2nd while CaptainCasa Enterprise Client is ranked 6th. The most important reason people chose Spring-boot is:
Boot is just a thin configuration layer over Spring Framework, as such it inherits all the strengths of Spring.
Specs
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Pros
Pro Inherits all of Spring's strengths
Boot is just a thin configuration layer over Spring Framework, as such it inherits all the strengths of Spring.
Pro Preconfigured starters
Pro Fast prototyping
Spring boot is built for fast prototyping.
Pro Kick down to Spring
Pro Easy clustering
Pro Very fast dialogs
Very fast even with many controls. CaptainCasa Enterprise client is much faster than Vaadin when writting similar programs.
Pro Fast and powerful
Pro Longlife framework
Pro CDI via EL
Separation of the backend code and the creation of the pages / Injection of the code (CDI) into the pages via expression language (EL).
Pro High security
Pro Server development with Java
No javascript is needed, everything is developed on the server with Java. Optimized roundtrip.
Pro Free use
Pro Good scalability
In addition to the extremely good performance, which already ensures that the system can be scaled well, clustering of the system is already provided for in the software architecture.
Cons
Con Lacking in UI development
While actually very good and with a very complete and rich feature set to develop and maintain code on the server side, it still doesn't provide any rich framework for building good user interfaces.