Are there any significant disadvantages of java spring,spark?

Question

Java

Good afternoon everyone 8)
I plan to transfer a very large collection of developments to
vue + rest and as a java + spring || spark
server The server will serve rest, websocket and other connections
Now I am sculpting a prototype on Node.js but its syntax, promises and almost complete uselessness ide terrifies me. I am silent about the low quality of some libraries and drivers.
I would be extremely grateful if people with similar experience shared pointers to large and thick stumps.

Answer 1

for the same reason, I dumped it on java after six months of playing in node.js
at about the moment when I felt like doing a medium-scale refactoring.
I realized that ide would not help me in any way in this, I was very upset and uncovered the spring boot.
I'm not complaining, the flight is normal, ide (idea ultimate) works to the fullest;)
ps: no, I'm not against the node, it's "nothing like that". especially after I discovered bluebird (yes, it was even before the advent of es6 and other encampments), but meow! ..

Answer 2

Right now I'm running away with python + flask back to reality. As a frontend, I recommend looking at jooby.org
Just about java8 + everything in the style of sinatra + MVC and a bunch of modules. Under the hood, it has netty and all this asynchronous stuff. I use pebble as a template engine - www.mitchellbosecke.com/pebble/home (there is a module)
Performance and performance are very pleasing. Yes, there is a good DI through guava.
Well, a brief introduction, note - https://medium.com/@espina.edgar/java-micro-framew...