Building web applications in Java with Spring Boot 3 - Tutorial

[@sugoi5240]

this course touches the basic of spring framework, its actually crazy how huge the spring ecosystem is

[@drexex0f]

yes

[@drewintech9257]

I'm transitioning from front-end development and have a basic understanding of Java. I decided to dive into learning the Spring framework, and I must admit, it's been quite challenging to grasp.

[@drexex0f]

@@drewintech9257 bro that's tough and also do DSA bro through Java

[@diasutsman]

@@drexex0f Why though, just use python

[@amansingh.h716]

@@drewintech9257 so whats the status now , have u learned spring ??

[@Jake295A]

It's hard to find a spring boot tutorial that goes over the basics and the foundations like this one does. Many tutorials out there jump writing into writing code which is very frustrating when you are new and don't understand what the purpose of everything is.. This is massively helpful! Thanks!

[@thegeeekynerd]

Are there any prerequisites for this course?

[@bobHAYES21]

​@@thegeeekynerdAverage knowledge of Java. Like Classes, Arraylist, Objects....Nothing too much, but you definitely need a couple of months of Java practice

[@bailieb123]

@@thegeeekynerd I started learning java from complete scratch, granted i have decent to advanced skills on python as a college student, i started learning on monday it is now thursday and ive comfortably built 2 web apps hooked one up to thymeleaf for ui, still not 100% on the beans and components etc but enough to get by. It depends how quick you pick it up

[@tinayetsinakwadi8906]

Wow this tutorial is really great for starting out. It gives you all the information you need to start using Spring. After this tutorial you'll become more confident to find your own flow and create your own new apps

[@albertmabo5322]

spring is so huge its overwhelming

[@vaisakh_km]

Somehow it's less overwhelming in telisko's videos

[@andiuptown1711]

*Literally was watching this dude’s channel yesterday and been researching Springboot all week …. I’m scared 💀*

[@potaetoupotautoe7939]

same here dude

[@DanVega]

What are you scared of? Feel free to reach out if you have questions.

[@aammssaamm]

They tracked your search. 😂

[@andiuptown1711]

@@DanVegathat KZbin is stalking me 😂😂

[@Seb0927]

Same

[@mohammedjaouni-lw9dw]

Thank you for this huge amount of information, and I hope that you will develop a launcher or map to master back-end using Java.

[@bogdogun5675]

For those who can't get past the "Web server failed to start. Port 8080 was already in use." error, go to application.settings and add server.port=8090 After you did this you will be working on port 8090. (You can add whatever port you like)

[@chirayumishra1185]

@danvega is one if the great pioneer in Java Spring space. He has been long here from the time of blog writting to podcasts. Good to see him again and that too on my one if favourite channel @freecodecamporg

[@DanVega]

Thank you so much!

[@jerichiyo]

I hope you also add java or springboot curriculum on your website

[@Nemomaycarry]

Thanks for introducing Spring Boot 3 to us!

[@theogenembonimpaishimwe1567]

This tutorial arrived at the perfect moment. Regards

[@bj2185]

I appreciate it, but this tutorial is a 2/5. You cannot use SQL highlighting or built in databases or automated HTTP requests on Community IntelliJ. You shouldn't use copilot in tutorials to generate large blocks of code without explaining them. It's a good thing I was able to work out postgre and docker on my own else I would have had no chance. I had to refactor the huge chunks of code you just paste in multiple times because it didn't work on my end. Theres no description of what beans, config, dependency injection or containers are, and tests that don't work? "I'll just fix this in the final repo" (It's not fixed in the final repo). For the delete test you can fix it (and I think this is the right thing to do but who knows) by adding a "when" mocking line that returns an optional, seen further up the test class. Also, the json pulled in for one of the final tests has been changed and the test will no longer work.

[@Reversd2u]

These issues pose a good challenge for the learner. You must have learned quite well to be able to criticize the tutorial, which is a win in itself. This is a decent tutorial, which is saying a lot considering it's free.

[@vaisakh_km]

​​@@Reversd2u it was really hard to follow along... :( tomorrow i have a interview telusko's ~5h tut i completed in 2x speed in 3h, and impliment myself, but this took whole day... still parts are not clear.. but telusko don't show many best practices like using Constructor based deoendency injection instead of Autowiring or properly setting http status.. so in that regards this is good, hence i watched this

[@tinayetsinakwadi8906]

Considering its free of charge, and being taught by a world class developer, id be a little more respectful with the comments. If you did not like it, that's fine, you can move on and let others enjoy

[@garv1202]

Please please post more content of spring

[@frank0_0]

Thank you for this amazing course,as a beginner in spring framework i learned alot and i wish you can upload more courses like this

[@z00lus]

Nice to see even java champion also produce red stack traces sometimes 😀 Thanks for very useful video, learned some new spring boot 3 things from it.

[@nikobelich5470]

These days I should fast switch from Node.js to Java. And this tutorial is really useful 4 me. Thanks a lot!

[@lonleybeer]

just started learning Spring, the possibilities are huge

[@King_houssin]

you think spring is gonna stay for a while in the market ??

[@lonleybeer]

@@King_houssin i believe so

[@thedapperfoxtrot]

Another one added to the "Coding" playlist I've yet to truly tap into. 😂😂 Edit: I've never wrapped my head around making web apps outside of JS though, so I'm genuinely curious!

[@Dr_Larken]

You’re missing out then, Mistakenly, I spent the first couple years of coding focusing on one language. Building literally everything with it! However, it annoyed everyone when they would see my contribution to whatever project we were working on. Perplexed on why I did it only in ArnoldC!

[@WristGameShardee]

Ive been focused on dotnet buf i want a better arsenal cuz dotnet is just easier on windows. I want something even more portable

[@vaisakh_km]

Yes, truly missing out... :) don't wanna thinking in deathbed should have tried out php... i felt really awesome writing servers anything other than js...

[@jixuanchong4744]

Thanks for the such a wonderful tutorial. Hope there more spring boot tutorial in the future

[@tracynnnn]

Module 5 - Creating a REST Client that makes calls to another service * Web Clients for Spring Boot was created to use as part of Spring Web Flux. Easier to understand and learn compared to other APIs * Create records that represent the User and any needed custom fields * Create RestClient and implement requests using restClient * Create HttpClient interface Module 6 - Testing

[@ShaunRust]

A great introduction to the Spring Framework. Worth watching !

[@justindouglas3659]

can we have a tutorial where before yous tart with spring you first learn to work with jax-rs and tomcat and then build restful services with things like jersey or the jakarta servlet api??? thnx again for the tutorial.

[@nathan_Eth]

I have successfully completed this course. Spent about 6 hours with follow-up coding. Thank you .

[@bkbkbkkkk2471]

U didn't get any error in it ??

[@nathan_Eth]

@@bkbkbkkkk2471 it has every where. there are some outdated part. but try to copy and the error and refer with CHATGPT. you will find the error fast

[@Atpataang]

U had made the project

[@Akaneyesolution]

Proctored exams, uh, and so, uh, I at this point I recommend that you try to go to a test center. But um, if you just want to get even certified and you really excited, uh, definitely go take it online. All right. Now, we just have some uh remaining questions here. So what does it cost to take this exam? It's $100 USD is the most inexpensive native assertification. Um, it's going to take 90 minutes. Oh, that's the time that you're allocated during the uh, the example. It doesn't actually take that long. You could probably get a done in under an hour again. It's not a very hard certification but I do recommend that when you go to the exam you maximize, um all of your time and review questions, uh, because it is a very good habit to get into when you take exam. There are 65

[@k4nishkk]

Few Keywords: (1st hour) Annotations Context Record Module Controllers Build tools

[@dses6611]

Just finished the course today and it is so awesome to gain a briefly concept about SpringBoot, thanks man!

[@bkbkbkkkk2471]

Hey dude u did it on windows or mac??

[@dses6611]

@@bkbkbkkkk2471 Mac w/ M1 chip

[@zb2747]

Coming from node and deno. Spring Boot makes building REST APIs even more of breeze. Most definitely an enterprise/production ready solution

[@kalouskm]

Thank u so much for this valuable content that u shared, i hope to see another

[@ouadalissifou1786]

another banger😮

[@ukcodes]

Thanks for this great lesson!!!

[@sudipchakraborty3901]

It's a great course indeed! Thanks Dan!

[@arnoldtuber]

Big respect to Dan Vega

[@coderprakash]

Thanks for bringing for springboot please bring it same for React Frontend

[@davidalex684]

Nice, this is entertaining for us programmers and developers.its just fun learning this would ya. Pls who agrees

[@Akaneyesolution]

uh, and so uh, uh before the only way you could take this exam you had to go in person to a test center, but now uh that Pearson view is part of

[@danielwilkowski5899]

Near 1:00:00, when the author tells you that you should not use "new", because Spring is an "inversion of control framework". That's kind of a sad irony. Because normally Inversion of Control means that the flow of control goes agains the flow of the dependency (hence the "inversion"). That's supposed to reduce coupling to frameworks and libraries. The irony here is, that by not using "new" but instead injecting the class into the controller, you're actually coupling your design to spring.

[@albertmabo5322]

Thanks

[@aguelejoseph5753]

Thank you. Thank you and Thank you for this course. I am absolutely grateful

[@namminh4336]

Thanks for great lesson ❤

[@Ann-learns]

1:11:44 Creating various CRUD OPERATIONS

[@JSH1994]

@DanVega you're a great teacher!

[@terrificfrogg8377]

Thanks for the amazing tutorial also Spring Boot is OP...i love it

[@brooklynwright7109]

This was a great tutorial, thanks Dan!

[@thefabffgamer3245]

good tutorial, it's just my mind can't comprehend it and now i am getting error and thus i left it after database part. thanks tho

[@koolam5158]

Sir thanks so much!

[@seasn5553]

Bruh I was talking today about this in a project proposal for my class

[@H_G2013]

Great video - can you do a video on how to create integration tests

[@MindIsLikeFullMoonInFall]

Love the tutorial, thank you! I want to ask, in Module 3: REST API, you mentioned using creating new RunRepository() in constructor could lead to millions of instantiation due to requests, but isn't @RestController a singleton? Won't the same controller always be called for all the requests and the constructor will only instantiated once?

[@lazarokabira2945]

Another video added to my endless list😂

[@xtccy]

How are your logs beautified with colors? Please explain, It makes a HUGE difference to readability 🙏

[@raghuvamsi27]

Op❤

[@andredearaujorodrigues7725]

After you create a course about spring security, i can't understand security in spring. Thanks.

[@saipavand4064]

time stamp 40:00 discussion about code structures 50:00 discussion about controlleer 52:00 annotaions 1:01:13 dependency injections expalined all the get and post how to do it from her on wards contine from here 1:17:16

[@ynnkh2116]

this course got me up and running, easy to follow, thank you :), Still looks like a black box to me and have to dig deeper

[@dreamisover9813]

Great one!

[@ChevaliersombreJVC18-25]

Thank you vert much for your course/

[@rizkysiregar]

thanks dan for sharing

[@solnone]

Thank you

[@rafiquemohammed3029]

I appreciate and thanks for the efforts and helping others to learn but the example "Run" and CommandLineRunner etc are quite confusing. A simple ToDo example is alot more simpler to understand for the beginner or ppl coming from other programming language. Thread.run(). CommandLine.run() and the example Run all these are difficult to understand while you explain it and whenever u use the word "Run". All i am hearing constantly in this video are Run, Runnerz, Runner, Runner.run, runRepository, run this and run that 🙂

[@Abazigal100]

Tutorial is good. One question: Is there a way to generate views (using Thymeleaf maybe)? The @RestController doesn't help render webpage. You can use @Controller but then you might need some refactoring to get REST API functionality

[@sammyalyooi8777]

Thanks!

[@utkarshjain5984]

He looks like toby from The office, I had a hard time concentrating 😅

[@ShipWreck68]

I get what you are saying in this video but there needs to be an outline maybe of the process. Then describe why each part is used and how its wired together. Watching this video I can see there is so much "assumed" understanding of what is needed to make the project. Its very hard to follow. Its clear this guy knows what he's talking about, but its very difficult to follow.

[@matthewerwine8333]

great video

[@n7c]

Good tutorial, but using autopilot is not helpful at all. I just end up going to the repo and copying code, which sort of defeats the purpose of a tutorial.

[@thefabffgamer3245]

same, the only setback but he gotta promote so he gets paid

[@aasiksihaab46]

What is the copilot you are using?

[@Skiamakhos]

I've been looking for anything on creating a website that uses either a document oriented nosql database or a headless CMS to create a componentised website - which is to say, an author creates a page in the CMS and assigns components in a particular order or layout. The back end gets the initial layout for the page from the CMS (or database) based on the URL given & if there's a page authored with that address it'll then fetch the content for the components - body text, CTA labels, titles etc. Does such a video exist on FCC yet?

[@padsundar]

What is AI plugin used in intellij. Is it Jetbrains?

[@duermes]

github copilot

[@cyberchef8344]

No judgement question - purely curious. For those of you just starting down the programming and/or web dev path… what made you choose Java over something like Python, JavaScript, C#, etc…

[@Flyrin_OG]

It's like when you chose a gamertag on XBOX at 12 years old. Java is the language I chose, and the language I became the strongest with. Now I am learning spring boot.

[@cromuelbarut9859]

awesome

[@waveEdu]

Truly first

[@KaznarahAndrinarivo]

I'm waiting for spring security💀

[@iamdushyanta]

How are you starting your spring boot application in less than a second? What are the config changes that are required to achieve this?

[@bogdogun5675]

This course is decent but it goes through concepts without defining them properly. It's like you'd say : Do this because you have to. Decorate with this annotation because you have to. I'mma write this code quickly and I will run it (Why tho?) Explain what are you are doing briefly. If I want to learn a framework I want to understand why are things done in a certain way, not getting them shoved down my throat like a Foie Gras duck.

[@CodingWithClapper]

Great tutorial. If you use IntelliJ IDEA Community Edition version 2024.1.2, the auto build does not work. At least, it doesn't work for me and I have found no fixes

[@alphamutuma3743]

I literally stopped from there but I am going to find another way

[@BecauseZiko]

Hey Great Tutorial, for me it is not clear how to operate over multiple tables in my rational database.

[@amaanullah13]

Sir 40 minutes in it and everything looks so tough, even though I fairly know SpringBoot.

[@jyotiramkamble1842]

Don't use paid version it difficult to use because we have community's version

[@rooreg4611]

At what point do you show the end application?

[@k4nishkk]

Model view controller Bean - Spring controls its lifecycle Repository Interfaces

[@Daniel1977B]

I learned a lot with this tutorial, @DanVega is an amazing teacher!

[@BattleFieldGalaxy]

Anyone else got an error (Application run failed) after launching docker and tried to rerun the application? 02:07:30 in the video.

[@thesarfo1]

yes

[@CodingWithClapper]

@BattleFieldGalaxy Yes. I was stuck on this for a few days. This was the error that was really messing me up: "Caused by: com.fasterxml.jackson.databind.exc.InvalidDefinitionException: Java 8 date/time type `java.time.LocalDateTime` not supported by default: add Module "com.fasterxml.jackson.datatype:jackson-datatype-jsr310" to enable handling" I'm running a newer version of Spring Boot than Dan and needed to add the jackson-datatype-jsr310 dependency to my pom.xml and then add it to the RunJsonDataLoader by adding this line to the constructor: "this.objectMapper.registerModule(new JavaTimeModule());" I'm not sure if that was your error too but I hope it helps!

[@SergiosKolios]

The issue for me was that spring framework was not picking up the `docker.yaml` file. After installing and uninstalling everything twice, restarting the IDE (Intellij) solved it for me.

[@h.k3260]

What kind of extension did Dan use to get the JSON formated that way

[@philfrei1]

Does this course cover Spring Security? I'm looking for a nice example with both user registration and user login pages.

[@mahendranath2504]

Wow thank you so much for sharing the knowledge 👌👋🫡👍😊🙏

[@TuanAnh-iw4mq]

any one else got stuck at module 4 after downloading postgreSql, docker and the system got the exception for 'UnsatisfiedDependencyException, Error creating bean with name: ' for the RunController? (for my case it's HealthController) and I followed this tutorial pretty closely

[@hipolit2200]

too chaotic

[@na_co1165]

Min 1:57:21 Sorta sums it up for me, autogenerates about 7 lines of code with Copilot, and explains none of it, and moves on: Id rate this course a weak 3/5 or 2/5

[@codexamofficial]

Although the video is so informative and good, it would be nice if you used a dark theme

[@DanVega]

I actually prefer dark theme but If I would have used that I would have gotten comments that they wish I used light theme. I prefer dark when coding but I think for presentations light theme works best. Hopefully you can dim the brightness and survive light mode.

[@paullim9386]

Personal timestamps: 49:46

[@finnianthehuman]

Thanks for the great video. I don't understand why the DB continues to be accesible through port 8080 when the local machine connects to the docker container through port 5432? Or, why is it not possible to make GET requests to port 5432 on my local machine? Is it just because the port 5432 is only the port used to connect the app to the database, but the app itself is still handling HTTP through 8080? So an incoming request hits 8080, then goes through 5432 to get to the database?

[@veereshmangalore006]

Hi guys Should i learn java dev or mern

[@lopamudramohapatra7354]

❤

[@abdulbasitsalah2918]

Thank you 😊 for this awesome course

[@uzornwachukwu3395]

Please how do we enable auto complete for custom queries like the findAllByLocation? Mine does not auto complete

[@stepbystepcoding4113]

it got really complicated real fast when he transitioned to getting stuff from the JDBC stuff, he lost me, I'm gonna have to look at some other simpler things -.-

[@djhi-tek9249]

After second hour , its full of bugs and eroors

[@ProgrammingWithRabbani]

Please someone mention Prerequisites of this tutorial.

[@Mirtguitar]

Everithing was good, until i got to the part of docker, and then nothing worked. I guess is not a toturial for beginners.

[@SamuelMuto]

the white screen is killing