Some Notes About Converting Your Java Spring MVC App to SpringBoot

In the last years Spring MVC has quickly lost ground to it's younger brother - SpringBoot.

The major changes are incode annotations instead of XML configurations, as well as embedding an internal application server instead of creating a war which you can throw into an existing external application server (like tomcat). - So it still will use tomcat, it will just be an embedded-internal one.

As I see it those are the main advantages.

So after migrating my own Spring mvc application to be a Springboot one, here are my notes.


  • All I needed was the embedded server - the migration did the job and I am highly satisfied as I don't need to install/maintain another part of the system (the tomcat server), which is very good as now my application has one less complexity.
  • Now instead of creating a war file, I create (Maven) a Jar file and run in using java -jar
  • The migration was easier than I thought!
  • Everything runs faster now - the tomcat is somehow more optimized which is nice
  • SpringBoot is a kind of wrapper to Spring mvc, so you don't lose anything from the migration
  • Springboot way of thinking is using an opiniated view of things, so it tries to automatically configure anything it finds. - which surprisingly works really well
  • The above leads to less code which makes me happier as less is more
  • The move from centralized XML configurations to incode annotations is not surely better, I kind of liked the centralized control using the dispatcher-servlet.xml, now in order to find all controllers I need to commence a search for @Controller etc, I am really not sure it is better.
  • The way to upgrade the application is going to the dispatcher-servlet and finding how to convert all xml properties to Java annotations
  • Go over the WebContent folder and delete all files there (find substitutions to them when needed)
  • The POM file should be totally refactored as basically almost all of its entries will be inherited from its parent and using the springboot starter packs, so start by adding the spring boot starter parent then add the the other starter-springboot-artifacts you will need

That's it for now, I will update this post as I find more advantages/disadvantages to springboot

Comments

Post a Comment

Popular posts from this blog

Profiling Java @ 2019

A good profiler can really help you in your work while coding Java (I assume while coding any coding language but I am referring to Java here) It can find memory leaks (Which object and how many of it takes the most of your limited memory?), CPU bottlenecks and other surprising data like the time consumed by each network call / DB query etc. Thus it is not so surprising to find many different java profilers around. I will try to map here the Java profiling tools lying around My short list of requirements will include the following: Profiler Requirements Constantly updated profiler (how a profiler built to profile Java6 will behave with Java11?) Clear GUI - As I will want to dive into the profiling data - it will be much simpler using UI Free (With a big advantage to the open sourced ones) (Optional) Remote profiling List of Profilers Dead Profilers (At least 5 years without an update) JIP - Java Interactive Profiler  - Last update 2010 Profiler4J - Last Updat
Read more

Shared/Pro/Managed Hosting for your site - which to choose ? (NO AFFILIATE LINKS!)

 You buy a domain and want to start your site running, time to find your perfect hosting. This is one of our first steps, and might be your most crucial one. I won't tell you which hosting company to choose, I will attempt just to clarify the picture. What are your Hosting options ? Shared Hosting You can choose shared hosting - obviously this one will be the cheapest option. In this category you might even find free hosting options, with or without ads on your site. Although this option sounds great for beginners as it is cheap and is comes with many promises from the hosting company (unlimited bandwidth, unlimited disk space etc.), there are no free meals, and as you are not alone on this server ( shared hosting), you don't really know who your neighbors are. So nothing is guaranteed, you might have a neighbor which takes lots of bandwidth, so you will actually have less to use etc. You might have a malicious neighbor which will attempt to hack your site using the common host
Read more

ZVR converter

Yesterday, a friend asked me to find him a ZVR sound file converter. What's the problem? I asked... Give me 5 minutes and i'll google it out. Well, I was wrong, finding a decent converter isn't an easy task, it took me at least 7 minutes (kidding). What's a ZVR file? It's a dictation recorder output file, used by the korean SAFA company, their recording machine is used mainly to capture sound files using its microphone during class lessons or whenever one wants. I just don't get it, why each company comes up with its own sound format?  grab a good and free existing audio format and stick to it! The ZVR files are very small hence their low quality... Anyway, a nice ZVR to WAV file converter was found. It's an incredibly small file (140kb). Download ZVR sound file converter  Enjoy, Avi.
Read more