Data Binding - Full Stack tech walk through|| Data Transfer Object in Spring MVC || @ModelAttribute

[@SeleniumExpress]

Hi Guys, I was down with a fever while recording this. I hope you guys can hear me well. Please do post a comment in case of any confusion.

[@prakashkoppal2614]

How are you now sir ?

[@rishabhjain4326]

Sir please make a video on integration of spring with hibernate

[@shaileshbritia9050]

Hey Abhilash, I would like to thank you from the bottom of my heart. I was put into testing as a fresher with 2 years bond and I was looking for profile change to Java. But had lost confidence to switch profile. Your videos are so good that I am gaining the confidence. Thanks a lot buddy.

[@eatsamulhaq4084]

Hey Abhilash, at 1:19:30 you have set the default values as Mr x and Miss y.... But we could also do this default value by using Then why did you use all of that model stuff🤔 Also, please reply to the comments and E-mails. I have asked many questions but you have not replied any one of them. Please reply to the questions as they make me more confused. Thanks

[@jessedarwin7615]

You prolly dont care but does someone know of a tool to get back into an instagram account?? I was dumb lost the account password. I appreciate any tips you can offer me!

[@AK-tt7fc]

You are genius , i never saw any one explain DTO so clearly as you did . keep doing .

[@chathurakawshalya]

You have put more effort to make this video understandable to everyone, really appreciate mate! 🇱🇰

[@prashantmore8489]

Bro you are just awesome . Can find enough words to say how much thankful I am . Whoever reading this comment just trust this man you will crack any interview .

[@vanigupta9622]

You are amazing Abhilash....till now my concepts were not cleared this much. This tutorial is really helpful !!. Thanks a lot for delivering such amazing content.

[@hareeshjp]

Really Really super explanation layman can also understand. Gr8 effort and it helped alot to understand concepts with Cristal clear.

[@Hopewithhopeless]

Hatts of to u ...me dear.... trainer .wow just wow ...what a beautiful way u teach @modelattribute

[@sajalsharma6774]

Aap bahut mast kaam karte hai Abhilash Bhai. Thank You.

[@prakashkoppal2614]

I was very confused with dto.. Now I got it. Why to use and how to use.. Thank you so much Abhilash

[@samiduraig4069]

Excellent Abhilash.. Thanks for teaching us.

[@random9414]

Your knowledge and effort is great ,I have never seen any content like yours .

[@computerscience8025]

Today, this was my first tutorial on this channel and I am a fan of Abhilash now. I just started learning Spring MVC two days ago and I found this video very helpful because it is very detailed, well planned and very well explained. Thank you.

[@lalik777]

Very good explanation of @ModelAttribute 👍

[@sdmj730]

you got one more subscriber....congo....Awesome explanation.....loved it. crystal clear explanation

[@niranjanpadhi4897]

Hey Abhilash, Thank you so much to share videos. I am a php developer but am preparing for java full stack developer. Luckily got your video link during searching best spring tutorial. Almost 40 videos I watched and parallel doing practice. Explanation is really awesome. Same videos watched many times to clear concept. I respect and love to your passionate towards java that's why your crush is "Java". Keep it up and again many many thanks for your support

[@GuruPrasad-jc6py]

You're an underrated Gem 💎

[@rajasekharreddy587]

Grate work sir.. Understand with clear picture..

[@prof_as]

sir before i was confused with the work of @modelAttribute i am using both modelAttribute and model object ,now it is all cleared,thankyou very much sir

[@mujifattar7294]

thank you Bhai....my all doubts are clear.....

[@thirumaniraj5988]

Thanks for the awesome explanations dude!! And those theme musics in between are really good!

[@anirudramaharjan8087]

Thank you for this very useful video

[@krishnamurthysuripka6774]

Excellent Bro.. U r explanation always awesome

[@waseemkhan-wj5rt]

@Abhilash,Your voice is perfectly fine and clear. Please do take care of your health. This is actually a very interesting and knowledgeable session,got to know a lot of things. Thanks for enlightening us with your teaching.

[@md.shafiqulislam6808]

We are eagerly waiting for your next video.plz upload as soon as possible.#stay_safe

[@fatmao99]

Thank you for explanation now everything is much more clear

[@gokulm6299]

Your great video made me to more comfortable with spring mvc concepts. I would like to say thank you and also no one give such good explanation like you. Keep making us confident by your video. 👍

[@rajpandey-jl3jl]

Bro...All the session are very cool..

[@aakashdetwal9950]

very very very much helpful thank you

[@jaykishankeshri1516]

Simply awesome and waiting for the next ....

[@ayoubtasnaoui9819]

thank you very much you help me a lot i undrstand juste from your explication i hope you do a lot of videos Spring with JPA, spring security, spring boot and Web Services REST for coming days. thank you again

[@sreekrishnan7617]

You are doing it great bro! Keep going

[@priyabiradar9299]

superb explanation... every point explained clearly...

[@susantdash]

Sir, Nanaskar. Apana nija dehara jagrata niautu. Satere sir apanakar video mote nischaya chakiri deba.

[@MrYp-ds7sz]

Hey bro, Apart from spring mvc I want to know about the music used in starting of this video. It is also as beautiful as spring mvc. I found this course as a best spring course on KZbin. I really appreciate your work and the best part of this course is that it is free of cost and well maintained.

[@s.keerthanakeerthana7143]

Very nice explanation anna. Tq very much

[@SeleniumExpress]

You are welcome 😊

[@ajaypardeshi5459]

hi bro ..your videos are really helping me to clear my concepts. I request you to please upload a video on spring mvc exception handling and spring security

[@sohelsamrat5711]

Sir your teaching technique And voice are really awesome . I have SUBSCRIBED your channel and also share to my friend for SUBSCRIBED, Thank you Sir .

[@gauravverma-xs2sl]

Thank you sir..very well explaination.....sir plz make a E commerce website project using spring boot...this will help for everyone I think.....thank u in advance

[@vinodbandari977]

thank you for a Job well done

[@sohelsamrat5711]

you are just awesome #Bro

[@tammamdarwish4298]

Hi..there .First of all thank you for this greate video.How can Spring create an object for DTO class

[@RiteshSingh-gq6hh]

Awesome video bro can you please make video on response entity in spring mvc

[@vinayyadav-qr7rb]

perfect clearity....wow

[@SeleniumExpress]

Thank You, Vinay.

[@nehaAwasthi_366]

Thanku so much for tutorial N take care

[@SeleniumExpress]

Thanks, Neha, You too.

[@santhoshkoduri223]

Where are you working neha

[@nehaAwasthi_366]

Whose this ?

[@nehaAwasthi_366]

Actually m not working m fresher ..on the last leg of my full stack course so preparing for interviews

[@slavesofallah8709]

Ur a good teacher

[@SeleniumExpress]

Thank you, for your kind words.

[@ericorabello]

Your explanation method is great! Thank you for all the effort you had put in these videos. One question: How in the showResultPage() method the URL query parameters are automatically set to the UserInfoDTO object? I've put sysout() messages in the UserInfoDTO set methods, and I really see they're called on the request of the result-page. But I don't understand how that's possible... Would you or anyone shed some light on this subject please?

[@razermanVal]

I dont know how exactly it is working internally, but I do know that it uses the UserInfoDTO class members' setter methods to set them only if these members have the same name as in the .jsp where we get the inputs( if, input name == class member name, then map them using setters if available).

[@PradeepKumar-sx6ms]

Below are my true lines : I feel happy about the way you do in-depth teaching but I feel some completeness can you please do like tutorials on spring core, spring MVC, and spring security even if it's paid course in your blog no issues

[@prasadt2930]

it's helpful to me tq..bro

[@SeleniumExpress]

Hi Durga, I am glad to know that it helped.

[@rokkohunter6551]

how did the fields in the home page get mapped to UserInfoDTO class so as to be able to read the values of UserInfoDTO class' properties/variables ? From what I understood, Spring instantiated UserInfoDTO after the "/process-homepage" call was made from the home-page. If so, then how were getter methods on UserInfoDTO called whilst home-page was loaded ? Is there something that I misunderstood ? 🤔

[@tuberhsieh34]

For home-page, fields are mapped because of using Spring form tags basiclly means Spring will * set text to username textbox using the string returned by userInfo.getUserName() * set text to crushname textbox using the string returned by userInfo.getCrushName() To pass a UserInfoDTO object into home-page view to use, inside showHomePage() we can either (1) new UserInfoDTO() and model.addAttribute() by ourself OR (2) using @ModelAttribute to tell Spring to do for us. After clicking calculate button of home-page, before calling showResultPage(), Spring will (1) create UserInfoDTO object (2) fetch query parameters and call UserInfoDTO's setters to set the UserInfoDTO object (3) pass the UserInfoDTO object as a func argument of showResultPage() and this is done bacause we write UserInfoDTO as an function argument of showResultPage(), i.e. public String showResultPage(UserInfoDTO userInfo). Then again, if we want to pass the UserInfoDTO object to result-page view, we can either model.addAttribute() by ourself OR using @ModelAttribute. The UserInfoDTO object created when doing showHomePage() and the UserInfoDTO object created before calling showResultPage() are two different objects. If sysout inside UserInfoDTO's contructor and at some points inside showHomePage() and showResultPage(), we will see (1) constructor is called when doing showHomePage() (2) constructor is called by Spring before calling showResultPage() OR print UserInfoDTO objects without overriding it's toString() method to see they are different objects. Besides, when we write showHomePage() in @ModelAttribute way: @RequestMapping("/") public String showHomePage(@ModelAttribute("userInfo") UserInfoDTO userInfoDTO) { System.out.println(userInfoDTO.getUserName() + userInfoDTO.getCrushName()); return "home-page"; } Although we are intending to let Spring only create object and set attribute for us, but since we write UserInfoDTO as an function argument of showHomePage(), Spring will also try to fetch query parameters into UserInfoDTO object for us. You can try to access "/spring-love-calculator/?userName=XXX&crushName=YYY" and UserInfoDTO object will be set correspodingly.

[@hariprasathnarayanan.k2011]

Hi sir, Is there any specific reason for declaring Model class in argument instead of creating the object in method definition ? 1:06:03

[@hurrit]

Allah senden razi olsun gardas.

[@random9414]

Please make video on multithreading concept .

[@BabaBabaji]

Bhai ,what a transformation 2017-2020 your body drastically changed , can you share what's your diet ,workout 😉

[@SeleniumExpress]

Ha ha.. It was easy for me. step 1: Do not go to GYM. step 2: Do not sleep. step 3: Order food from Swiggy and Zomato. step 4:Sit in front of the system and work. Confirmed transformation in a year.

[@BabaBabaji]

@@SeleniumExpress So should i follow this 😜😁😁,thanks to subscribers because of them you got this, joke apart .thanks bro for motivate us

[@priyabiradar9299]

@@SeleniumExpress Superb diet ...we will defiantly follow..

[@rahulbarua2784]

hey, selenium you taught very good .but I have a doubt how it read the dto package because we do not mention this package in spring configuration file how dit it possible.

[@chandniladola9112]

can u post any video for many to many relationship in hibernate + mvc + jsp

[@prakashkoppal2614]

Hi sir.. When you will upload rest of the videos... Plz tell me

[@thetechthirsty713]

Sheldon having crush on penny 😂😂😂. Anyways thanks for the tutorial its in depth and very helpful.

[@SeleniumExpress]

😂

[@thecatleo]

Hi bro, is it possible to send these values to frontend technology like angular? and how it is done? please help me answer this bro.

[@AmazingVWorld]

One Doubt I have--> How userInfoDTO object is getting created by Spring as we have not used @Component inside DTO class.? Also DTO object is getting created 2 times as constructor is being called twice. If number of controllers are there then that many times object will be created? Thanks for this descriptive and very well explained video.

[@jagannathrao1715]

please share some examples on Oath implementation with spring boot.

[@santhoshchandran6952]

Thank you

[@OdiaMadBiker]

Superb bro!!!

[@SeleniumExpress]

Thank you, Akash.

[@samuelmanukonda286]

Hi, Which java version are you using, I am having issues with java 11.

[@sivakrishnat5471]

getting jstl uri not found error, tried all tips from stackoverflow

[@rajeevranjan575]

the video helped me with few of my doubts , can you add a tutorial on adding resources such as CSS, JS,Images to our projects with java config. I know about xml but it would be great if you do so.

[@doraswamy7005]

bro pls do the videos on orm tool with java based configuraion approches

[@Loveournation]

Hi bro.ur videos r awesome bro.really enjoyed and learn lot.. .I tried to fullstack developer..so could you please do one video for interview based questions and answers on fullstack developer.. thanks in advance..

[@SeleniumExpress]

I will surely work in your suggestion.

[@Loveournation]

@@SeleniumExpress bro please upload ii nterview questions and answers on fullstack developer please..now so many calls and requirements there..so i request u ,i want realtime experience questions and answers.. thanks in advance. May be this week u will upload,i will get good opportunity and credit goes to only for you.. once again thanks in advance...

[@rajpandey-jl3jl]

Could you take a session where Using RestController and JSP using AJAX call will make a Registration form not only data binding data want to bind using AJAX calls?Please take session on this.

[@omit_krish]

DTO wasn't create an object then how we calll to set and get data..?

[@prakashkoppal2614]

Please upload rest of videos sir

[@shubhi2648]

can 'modelAttribute' be only used with form:form element? For example in our resultPage.jsp, we are using ${userInfo.userName}.. any way to use modelAttribute here ?

[@meghadeysarkar6730]

in am in the video no 6, my project worked absolutely fine but now i am getting an error mark on my project itself. there are no errors in any of my java classes or jsp files. Even maven build is successful. how should i solve the error?

[@SeleniumExpress]

Please Do a maven > update project Followed by Run as > maven install If it doesnt work, post a Scrernshot on seleniumexpress-support facebook group.

[@susantdash]

Sir, Please tell me how much more video required to cover up Spring MVC. Kindly Upload all video by this month So that I will start to face interview by next month.

[@ksaikumarnaik271]

Help me anyone ...i have stuck at Error: no mapping Get .....path description how to solve these..there are no errors in console ....

[@BagaleChetan]

Please make tutorials on REST and Micro Services

[@SeleniumExpress]

Hi Chetan, Spring REST I am going to cover soon.

[@susantdash]

Sir, How much video required to cover up Entire Spring MVC. ?

[@santhoshkoduri223]

Any online classes

[@swamisimhadri.vtalent5930]

${ } not working in jsp page........can anyone solve?

[@SeleniumExpress]

Add in page attribute isElIgnored = false

[@AmanGupta-ll1dv]

@@SeleniumExpress thank you sir..you saved me i was also stuck in this problem

[@saradagollamudi5620]

@@SeleniumExpress thank you! added the following line and it worked -->>

[@divyeshakabari]

@@saradagollamudi5620 this line giving me warning

[@FasakJokes]

tq sir

[@randhirverma8042]

get well soon Abhilash

[@adicide9070]

is this actually from 2020?

[@santhoshkoduri223]

In which institute you working

[@SeleniumExpress]

Hi Santhosh, I am not working in any institute.

[@rahulbarua2784]

he is the one

[@susantdash]

Sir, May I expect next video very soon. No doubt my pressure to upload video not justified but without job i am forced to do so.

[@SeleniumExpress]

Hi Susant, If everything goes well, You will get a new one next weekend.

[@sharanr6066]

1:30

[@ashtaashta9069]

😍

[@sagarmeena0210]

you have good knowledge, but you repeat a lot when explaining....we can rewatch you video, try not to repeat. Half an hour video becomes an hour long

[@VISHALKUMAR-ec3re]

Shammy

[@superalad]

You have talent, but talking a lot This video can ce easily done with in 15 mins. Create more videos, talk less

[@yashisheetal-q1b]

if i use UserDto ,Model and @ModelAttribute it's working fine but if i use @RequestParam annotation to bind data in result-page.jsp . it will give me error jakarta.servlet.ServletException: Request processing failed: java.lang.IllegalArgumentException: Name for argument of type [java.lang.String] not specified, and parameter name information not available via reflection. Ensure that the compiler uses the '-parameters' flag. How it resolve plz tell me

[@kalaimaranmadhavan4182]

can I use @RequestParam rather than @ModelAttribute on the result page?

[@sachinsinha6154]

By using variable name is jsp like ${userinfo.Username} i am getting error , but when i call method ${userinfo.getUsername()} i am getting correct answer , can anyone guide me on this.

[@santhoshchandran6952]

Thank You