Spring Beans Showdown: Unraveling the Mystery of @Component vs @Bean!
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- Опубліковано 16 кві 2023
- Join me as we dive deep into the world of Spring Beans and explore the key differences between @Component and @Bean annotations. In this comprehensive guide, we'll break down their unique features, use cases, and best practices, empowering you to make informed decisions when developing your next Spring application. Don't miss this opportunity to enhance your Spring Framework expertise and take your skills to the next level!
🔗Resources & Links mentioned in this video:
Blog Post: www.danvega.dev/blog/2017/05/...
Spring Boot Crash Course: • Spring Boot Tutorial f...
Dependency Injection in Spring: • Dependency Injection S...
Constructor Injection: • Spring Constructor Inj...
👋🏻Connect with me:
Website: www.danvega.dev
Twitter: / therealdanvega
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LinkedIn: / danvega
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SUBSCRIBE TO MY CHANNEL: bit.ly/2re4GH0 ❤️ - Наука та технологія
Can you make a crash course on Microservices too ?
Really love to learn from your experience and way of explaining things. You really inspire me to teach others. Thank you for being there Mr. Vega.
This is an ABSOLUTE banger
Finally i have no misunderstandings on beans, components and even spring container
Finally! Finally a video that explains this without ramming meaningless jargon down my ears 😁 You've got yourself a new subscriber!
I absolutely love your videos, please don’t stop making!
Hi Dan, this is fantastic!! A lot of of these detailed information is hard to be found easily. With most of the tutorials and examples online, they only tell you what/how to do, but not why. Thank you!!
I feel the same way and I am often trying to answer the questions that I have as well. Really glad you enjoyed it and thank you for the kind words.
This is THE explanation. Like you explained everything in a much simpler way than all the other sources I have referred to. Thanks for such a wonderful tutorial!
Excellent explanation, got some things cleared
Finally!!! Thank you, Dan. You're the best✌
As always, very valuable content for free. Much Appreciated!
This is gold, brilliant Dan, you are amazing.
Incredibly illuminating. Thank you!
You are a true hero Dan!! You’ve just breakdown it so understandable that I’m very impressive.. thank you thank you
Great content Dan! I was pretty familiar with all the concepts mentioned here, still the content was refreshing. Love the way you dive into things. Keep it up!
Thank you so much. I’m just getting started with Spring and Spring Boot and this video helped me confirm some things I suspected! I will start your Spring training video 🎉
Thank you. Best explanation. I've been hearing those terms and using them, but I never took the time to understand what they mean. Beans put methods in the application context, mostly used with the @Configuration annotation. @Component put classes into the application context. You are awesome!
Thank you, Dan!! So helpful 💪
Thank you Dan! Quality content!!!
Thanks Dan, these are very helpful.👍
You're great Dan, thank you and happy coding! 😃
It's really helpful explanation. Thanks Dan!
Thank's a lot ! Your explanations really helped me to understand how Spring Beans work :D
Thank you for the video!
Thanks Dan, it was helpful!
Thanks @dan, i find it useful. Thanks
Very good and dense content! Thx
Nicely done!
Great video. Thanks for making!
Thanks for watching
Thanks , it is really helpful.
no joke this tutorial of bean and component 100% clear than water.
Nice job!
Awesome explanation!
Thank you!
Thank you, really helped
Thanks ❤️
Very Cool video @Dan ! For anyone who can't see spring plugin, Spring plugin is available in Ultimate Edition , not the free one.
Nice shirt, I got mine from Devnexus!
Dude, you explain it so well, that when I have questions about Spring, I go to your channel. Thanks for your work!
Dan! Thank you for your content! It helps me to understand Springboot a lot better! Would you recommend goign through the documentation? I always seem to have trouble with creating queries to retrieve data from mysql.
Nice job. A couple of quick comments:
1. I had no idea that IntellIJ had a Spring view. Seems obvious in retrospect, but thanks for that.
2. I'm surprised you didn't autowire the `RestTemplateBuilder` into the `@Bean` method rather than instantiate it yourself. The builder is available in the application context already, so make it an argument to your configuration method and it'll be autowired in automatically.
3. Even though autowiring works as long as you have only a single constructor in a class, I usually add `@Autowired` anyway, partly as documentation, and partly as protection in case someone else adds a default constructor, at which point the automatic autowiring wouldn't work any more.
Just a thought. :)
Wow! It is Ken! 😮
@@DineshkumarPuli Snicker. No, it's Dan :-)
thank you, Dan! would you please tell about @component vs @repository. Both annotations are used in infrastructure layer of any REST app (storage or repository packages). I'm slightly confused by such diversity.
Good Tutorial
Not going to lie, this example about beans only confused me more. How does Spring make that vague connection to the Resttemplate method? That seems like dark magic to me...
I have been working on Spring projects and gathered some valuable knowledge! Spring basically has the so-called IoC container, which is associated with the dependency injection system it has been integrated with. In simple words, instead of trying to make new objects with the keyword "new" like "new User();", Spring will automatically inject this dependency for you. This can be done in 3 ways: through field, constructor or setter injection. That's it. Also, by default, the instances provided by spring are singleton, namely, only one instance is provided for the entire application context, which of course can be changed if you want.
Nice video ! how do i get spring in tool window . Is it only on ultimate edition ?
Can you cover spring beans and concurrency?
How about factories? Is there a way to register a factory that will return a bean when needed. Say a bean with generics. Is there such a way to easily register a bean factory?
Can you create a spring security crash course as well please ?
My goodness yes! This would be so helpful.
He has a playlist on spring security
also he recommended Laur Spilca on that particular topic
Thanks for the great content! Could you share the font you're using?
i think it's cascadia-code font of microsoft
Thak you for the tutorial. I have a question. How can i get the same UI of the Intellij IDEA like yours?
Hey Dan what's the theme you are using?
Which theme are you using in your IntelliJ?
should we not use "new" keyword in classes even if they are just regular classes and not beans or components? let's say I have a helper class for math operations, shouldn't I use "new" keyword in its dependencies? (since you said you should stay away from using "new" keyword 6:54)
Hello Dan,
defining beans with @Bean annotation isn't truly an inversion of control, since we are returning a new bean explicitly with the "new" keyword like so:
@Bean
public SomeObject myBean(){
return NEW SomeObject()
}
Please correct my understanding.
Thanks
Hi, I like your videos. I found a mistake on your Recent Articles page on your blog. You put "I like to write about anything thta I am currently working or something new that interests me." You misspelled the word "that". Thanks.
what is the shortcut for emoji please? 😄
Why does @Bean doesn't work if you are returning a Collection type and you have to use @Resource?
Why do you use a CommandLineRunner instead of just running System.out.println()
I like this video, but I think you cold update it with more clarification on best use cases for each. Like, when is it better to use @Component vs. @Bean?
He literally explained it in this video. It's not rocket science.
Wait why don't we just make all the methods in Controler and Service static and then we don't need beans for them? I mean why even initialize a Controller class?
You didn't show how to get that spring view tool
我不会英语，但是通过字幕我学习的很慢但是我会坚持的
What's wrong with your camera? Adjust the focus before recording a video
spring boot and all that thing of beans are bullshit dude it isn't declarative, I builded an application with jax-rs and it hasn't all this "magic things" of the spring runtime handling all the instances in the limbo, jax-rs (now called jakarta-rs) gives you more freedom.
/krch dsk bean < R'(4''tvk''btx ruch)< ~tmp2''kf(2 inch 824x) @ rdsk~II tmp p''TdDxn gml rul txt tun//J namz krch 4''Rtvk abv + 2''UI' kol rul vd sim LN'' < rdacht~tmp p''2'(xvtn) rtun bean/
/rbean dsk~tmp snd ruch vF8''btz dach txt tn R2''p~ K' rch + frch vktd rbean rul~tmp < txt tun ad cmd~gml + wn ml//+ hlf ruch < 28''frch contnt fiji kalchz rdsk - 4''tvk - fz 2''UI' id - txt tun - verifcate/