💥 How to build CRUD REST APIs using Spring Boot, JPA/Hibernate, and the PostgreSQL database 💥

In this tutorial, I explained how to build CRUD REST APIs using Spring Boot, JPA/Hibernate, and the PostgreSQL database. We will use the latest version of Spring Boot in this tutorial.
Please make sure that the PostgreSQL database is installed on your machine.
Check out these below links to download and install a PostgreSQL database on your machine.
www.postgresql...
It's very easy to configure Spring Boot to use the PostgreSQL database.
=== Spring Boot ===
. Project Overview
. How we are going to Create Project
. Architecture
. Tool and Technologies
. Steps for Development
. Testing Using Postman
Save API
=====================
URL: localhost:8080/api/save
Method: Post
Find ALL API
=====================
URL: localhost:8080/api/findAll
Method: GET
Find By ID API
=====================
URL: localhost:8080/api/findById
Method: Post
Update API
=====================
URL: localhost:8080/api/update
Method: PUT
Delete API
=====================
URL: localhost:8080/api/deleteById
Method: Delete
Script For Create user_details table
=========================================
CREATE TABLE user_details (
id int,
username varchar(100) DEFAULT NULL,
email varchar(100) DEFAULT NULL,
password varchar(100) DEFAULT NULL,
PRIMARY KEY (id)
);
Source Code: github.com/Jav...
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[@anandalakshmir1273]

One doubt. So the UserRepository we created is an Interface. And in UserService, we are creating it's object. Will this not give an error? Can we create an object for the interface?

[@JavaTechSolutions]

In spring it's a dependency injection

[@sushantabanerjee6901]

❤❤

[@JavaTechSolutions]

Thank

[@razatech22]

Use multiple entities in this project

[@JavaTechSolutions]

What is your need?

[@lenintemp]

Hi sir i downloaded your project from git and executed in my local but when try to save its saving empty record in database and even if manullay inserted the record in database when i tried to fetch its giving empty record only any idea on this

[@JavaTechSolutions]

I can help but I need the logs

[@anandalakshmir1273]

Also, We are not using the @ResponseBody annotation or ResponseEntity as return type in Controller methods. Will this not throw error?

[@JavaTechSolutions]

Response entity bind with rest controller annotation

[@krupad1483]

I am getting error

[@JavaTechSolutions]

This is not sufficient to tell anything

[@divyanshiagrwal5216]

"No static resource Charges/save."

[@JavaTechSolutions]

Not able to understand