Spring Boot, MySQL, JPA, Hibernate Restful CRUD API Tutorial

In this video tutorial, we’ll build a Restful CRUD API for a simple user management application. We’ll first build the APIs to create, retrieve, update and delete a user, and then test them using postman.
GitHub link at github.com/RameshMF/springboo....
Read the blog post at www.javaguides.net/2020/04/sp....
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[@JavaGuides]

Spring Boot REST API Exception Handling at kzbin.info/www/bejne/rojRhmmuaqerr6M Spring Boot Rest API Validation with Hibernate Validator at kzbin.info/www/bejne/ppukaoOZbMaHn8U

[@vishalakshin1840]

I am a beginner of spring boot, Please arrange the playlist from basics and topic wise so that we can follow the playlist.

[@JavaGuides]

@@vishalakshin1840 please check spring boot for beginners playlist on my youtube channel. It has ordered videos and I made it for spring boot beginners.

[@igoerche]

Mister! I started several weeks ago with your tutorials and now want to thank you from the bottom of my heart for all your help! Its so great to have you! Thank you very very much!

[@randhirverma8042]

hey Ramesh, Thanks for this video, I have waited long for this

[@SureshBabu-jq9su]

I am a beginner and was able to create rest API in first go itself. Great Explanation. Thank you so much

[@wlodekkkr-refactoring]

Very nice and very simple tutorial for beginners. Very well explained and easy to follow. Thank You!

[@javatechnology4481]

Very nicely explained with great presentation. Very useful with lots of spring boot information.

[@ramagarimidi]

Very helpful and useful. Thank you!

[@ariannehernandez9680]

great tutorial! JPA is working.

[@marciocostadeoliveira2271]

Thanks, Java Guides!

[@siamakd]

Learning throught your training course is like finding a Gold ! You are genius man! Excelent Job!

[@JavaGuides]

Glad you enjoy it!

[@jilanishaik8791]

Super explanation and Thank you so much ,Ramesh

[@aanchalsathyanarayanan9223]

Really useful video and the explanation was very clear which helped a lot! Its very helpful for any newbie like me! Thanks for this video.

[@JavaGuides]

I am glad that you found this video tutorial useful

[@mahendranr8934]

👍Great work of knowledge sharing🙏

[@mcskrishna]

Very good. Thanks

[@JITENDRAPAL21]

Covered full CRUD in a nice way. Great !!!!!!!

[@ayushkumarsone4401]

{ "timestamp": "2021-05-19T13:04:08.834+00:00", "status": 404, "error": "Not Found", "message": "", "path": "/api/users/" } please help

[@johndoedoejohn]

@@ayushkumarsone4401 add this into application.properties file server.error.include-message=always _ Then check if message is passed into () -> new UserNotFoundExceotion(->here

[@stephanihova808]

Hi! Best video. I would like to know how to manage the pagination (previous and next) for the display of data. Thank you Java Guide!

[@ChanoTSG]

you are the best.......

[@prudhvialagola9677]

what a tutorial superrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr

[@koushikmaruvada5927]

hey Ramesh, it was a neat and clean explanation even a beginner can understand, can you please explain the testing phase as well.

[@thanos9704]

Best tutorial broooo

[@tannubajpai4782]

thnx u for for ur serives keep it up bro

[@kishorkamlu392]

Very good explanation. Thanks bro.

[@JavaGuides]

Thank you!

[@denahornsby3043]

Thank you. Could you kindly say what you are clicking in the pop up boxes? Not sure how you were getting pop up boxes sometimes or what you were clicking. On the first page you can not see what was added as its up above the view. Maybe something like "Im going to click ...." for the auto loads would of been very helpful. With that this video is something I needed and I appreciate what you have done here. Just that one addition for the UI would of made it like so much easier to follow. Thank you.

[@qamarislam274]

Thanks for this nice tutorial. Those who are facing the issue of not getting error message from ResourceNotFound exception, just add the following line in your .properties file: server.error.include-message = always It is changed behavior in Spring Boot 2.3.0

[@user-wy4el6zu1f]

Thank you! :)

[@jamuna5181]

Man you saved my time🎉, thank you!!

[@ralphhuzz31]

If your messages doesnt appear on the Exception just add this into application.properties file server.error.include-message=always

[@raviravi-gg5ck]

thank you so much!

[@ascar66]

Thank you Sir, everything is pretty clear

[@someshsahu4638]

very nice explanation sir thankyou so much 🙏🏼🙏🏼🙏🏼, i am your new subscriber, and i really loves your videos

[@parthpatidar976]

How to resolve this error?? { "timestamp": "2023-04-28T07:25:31.041+00:00", "status": 500, "error": "Internal Server Error", "message": "not-null property references a null or transient value : com.example.demo.model.Employee.firstname", "path": "/api/employees" here is the code: package com.example.demo.model; import jakarta.persistence.Column; import jakarta.persistence.Entity; import jakarta.persistence.GeneratedValue; import jakarta.persistence.GenerationType; import jakarta.persistence.Id; import jakarta.persistence.Table; @Entity @Table(name="employees") public class Employee { @Id @GeneratedValue(strategy = GenerationType.IDENTITY) public long id; @Column(name = "first_name",nullable=false) public String firstname; @Column(name="last_name") public String lastname; @Column(name="email") public String email; public Employee(long id, String firstname, String lastname, String email) { super(); this.id = id; this.firstname = firstname; this.lastname = lastname; this.email = email; } public long getId() { return id; } public void setId(long id) { this.id = id; } public String getFirstname() { return firstname; } public void setFirstname(String firstname) { this.firstname = firstname; } public String getLastname() { return lastname; } public void setLastname(String lastname) { this.lastname = lastname; } public String getEmail() { return email; } public void setEmail(String email) { this.email = email; } }

[@sreedharbabu4969]

This really good. could you also provide sample spring batch example

[@vishalakshin1840]

Hi Ramesh, please arrange the playlist order in topic-wise as on the website.

[@johndoedoejohn]

Amazing video, thanks a lot Ramesh! :) @Everyone - Please leave thumbs ups after watching, guy is sharing this valuable knowledge for you so you can watch it for free.

[@shivanishivu32]

Getting error mentioned below. Can you please help? com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Could not create connection to database server.

[@hemanthcse1]

Hi i am getting this error while creating new user, can anyone help me out "error performing isolated work; SQL [n/a]; nested exception is org.hibernate.exception.SQLGrammarException: error performing isolated work" Thanks in advance

[@shyamsoni5389]

Extremly helpful videos. Can you make one video on O-auth google or facebook authentication with react js/ boot application ?

[@bhaskarvallapu1285]

Iam getting first name and last name values inserted as null

[@vyshnavivyshu4975]

How to write if for id column as uuid type

[@PrinceJeniFX]

please which app do you use for your screen recording ?

[@JavaGuides]

Camtesia

[@vasilisnikolaou4633]

Great tutorial..but what about hateoas? I think it's one of the architectural constraints when building restful apis.

[@JavaGuides]

I will plan to create video tutorial on hateoas with continuation of this tutorial.

[@raviravi-gg5ck]

how to do bean validation

[@manojhargude7192]

Parameter 0 of constructor in com.springboot.blog.security.CustomUserDetailsService required a bean of type 'com.springboot.blog.repository.UserRepository' that could not be found. The injection point has the following annotations: - @org.springframework.beans.factory.annotation.Autowired(required=true) Action: Consider defining a bean of type 'com.springboot.blog.repository.UserRepository' in your configuration. Can anyone help me with this bean configuration issue

[@irckdwrld]

Thanks for the nice tutorial. I've one doubt regarding why we are using spring.jpa.properties.hibernate.dialect property?

[@JavaGuides]

dialect property hibernate uses to identify the underlying database and generates the SQL queries.

[@irckdwrld]

@@JavaGuides Thank you so much for clarifying this quickly, you're the best :)

[@SantoLucasST]

ok? great

[@warehouseofhospitality]

private UserRepository userRepository; what is the grammer in Java?

[@punamrupanavar6785]

I am getting Error while connecting to DB " java.sql.SQLException: Access denied for user ''@'localhost' (using password: NO)"

[@JavaGuides]

Configure database username and password as per your MySQL installation in application.properties file.

[@victor8888]

i have an error in console. im using gradle instead of mavan---- Resolved [org.springframework.web.HttpRequestMethodNotSupportedException: Request method 'POST' not supported]

[@victor8888]

I got a response in postman { "timestamp": "2020-06-30T09:00:34.310+00:00", "status": 405, "error": "Method Not Allowed", "message": "", "path": "/api/users" }

[@JavaGuides]

@@victor8888 select POST http method in postman

[@victor8888]

@@JavaGuides its working fine now. I had made a mistake in entity class I do not create a default super constructor. thnx for your amazing tutorial. :)

[@victor8888]

now my data save in DB but I now I want to add swagger in my application. have you any suggestion for me because I'm new for swagger my friend.

[@JavaGuides]

@@victor8888 check out my website for swagger API documentation tutorial or I have uploaded video as well ( video voice is little low but you can check out)

[@sherazdaawataza2869]

Very good Please Speak loudly very low volume

[@ngoquangtruong3849]

you are building api with spring boot use 3 layer architecture, right?

[@JavaGuides]

This is a simple Spring boot CRUD project and doesn't have business logic so I haven't created a service layer. If you want to create a service layer then check out my same another video tutorial at kzbin.info/www/bejne/gaDIaKJ5ZrikZsU.

[@saddamkhalid1091]

i have an error in Jpa repository how can i resolve?

[@JavaGuides]

Provide error details?

[@saddamkhalid1091]

@@JavaGuides In userRepository when you extend jparepository so jparepository give me an error of configuring build path

[@vijaykumar-wu9jc]

I followed same steps am getting error as Error:Could not find or load main class caused by java.lang.ClassNotFoundException Pls help me make one video on this how to resolve this issue in STS

[@JavaGuides]

Are you able build maven project successful?

[@anantjain1263]

Hey ramesh exception is not working I am not getting any message or anything

[@JavaGuides]

Spring Boot REST API Exception Handling at kzbin.info/www/bejne/rojRhmmuaqerr6M

[@Satyaprakash-xs4jx]

Hibernate Validator not working in spring Boot ...what to do?

[@JavaGuides]

To use hibernate validator, Starting with spring Boot 2.3, we need to explicitly add the spring-boot-starter-validation dependency: org.springframework.boot spring-boot-starter-validation

[@Satyaprakash-xs4jx]

Thank you so much

[@SurajSoni-qs8st]

to {GET [/api/username]}: There is already 'userController' bean method Caused by: java.lang.IllegalStateException: Ambiguous mapping. Cannot map 'userController' method org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'requestMappingHandlerMapping' defined in class path resource [org/springframework/boot/autoconfigure/web/servlet/WebMvcAutoConfiguration$EnableWebMvcConfiguration.class]: Invocation of init method failed; nested exception is java.lang.IllegalStateException: Ambiguous mapping. Cannot map 'userController' method com.springweb.controller.UserController#getallUsers() got 3 types of error please resolve it

[@asuvanikumar]

Where is service layer??

[@JavaGuides]

This is simple Spring boot project and don't have business logic so I haven't created service layer. If you want to create service layer then check out my same another video tutorial at kzbin.info/www/bejne/gaDIaKJ5ZrikZsU.

[@ayushkumarsone4401]

Sir help me WHat should I do ? { "timestamp": "2021-05-19T13:04:08.834+00:00", "status": 404, "error": "Not Found", "message": "", "path": "/api/users/" }

[@JavaGuides]

Pass id in URL. which REST api, you are calling?

[@ayushkumarsone4401]

@@JavaGuides sir post localhost:8080/api/users

[@JavaGuides]

@@ayushkumarsone4401 share the request JSON

[@ayushkumarsone4401]

Now it is working .. Downloaded your file from github... and did copy paste it is working...

[@JavaGuides]

@@ayushkumarsone4401 okay 👍

[@JavaGuides]

Free course - Angular + Spring Boot CRUD Full Stack Application at kzbin.info/aero/PLGRDMO4rOGcNzi3CpBWsCdQSzbjdWWy-f Free Course - ReactJS + Spring Boot CRUD Full Stack Application at kzbin.info/aero/PLGRDMO4rOGcNLnW1L2vgsExTBg-VPoZHr

[@kirankumarkondapally237]

while running getting error as org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaConfiguration.class]: Unknown access type record could you help us ..The version of STS iam using as Spring Tool Suite4 Version 4.22.0.Release17