Web development Using Java

🔷 Step-by-Step Guide: Employee Management System Using Java (Spring Boot & MySQL)

1️⃣ Project Setup

✅ Install Required Tools

JDK 17 or later – Java Development Kit
Spring Boot – Backend framework
MySQL – Database
Maven – Dependency management
Postman – API testing tool (Optional)
IDE (IntelliJ IDEA, VS Code, Eclipse, or STS)

✅ Create a New Spring Boot Project

Use Spring Initializr (https://start.spring.io/) and select:

Spring Boot Version: Latest stable release
Dependencies:

Spring Web (for REST API)
Spring Data JPA (for database interactions)
MySQL Driver (for MySQL connectivity)
Lombok (to reduce boilerplate code)
Thymeleaf (if using JSP/HTML frontend)

Download the project and import it into your IDE.

🔹 What is JDK 17 or Later?

JDK (Java Development Kit) is a software development kit required to write, compile, and run Java applications. JDK 17 is a Long-Term Support (LTS) version of Java, meaning it will receive updates and support for an extended period.

🔹 Why Use JDK 17?

Performance Improvements: Faster startup and execution.
Security Updates: More secure than older versions.
Modern Features: Includes new Java features like records, pattern matching, and sealed classes.
LTS Support: JDK 17 is a Long-Term Support (LTS) version, meaning it's stable and recommended for enterprise applications.

🔹 How to Install JDK 17

1️⃣ Download & Install JDK 17

Go to the Oracle JDK Download Page.
Download the JDK 17 version for your operating system (Windows, macOS, or Linux).
Install it by following the instructions.

Alternatively, you can install OpenJDK 17, which is a free, open-source version:

On Windows (using Chocolatey):

choco install openjdk17

On Ubuntu (using APT):

sudo apt update

sudo apt install openjdk-17-jdk

On macOS (using Homebrew):

brew install openjdk@17

2️⃣ Verify Installation

After installation, check if JDK 17 is installed correctly by running:

java -version

Expected output:

java version "17.0.1" 2021-09-14 LTS

Java(TM) SE Runtime Environment (build 17.0.1+12-LTS-39)

Java HotSpot(TM) 64-Bit Server VM (build 17.0.1+12-LTS-39, mixed mode)

3️⃣ Set Up JAVA_HOME (Environment Variable)

Some tools (like Maven and Spring Boot) need JAVA_HOME to be set.

Windows

Open Command Prompt and run:

echo %JAVA_HOME%

If it's empty, set it manually:

Go to System Properties → Advanced → Environment Variables.
Click New under System Variables and add:

Variable Name: JAVA_HOME

Variable Value: C:\Program Files\Java\jdk-17

Restart the terminal and run:

echo %JAVA_HOME%

Expected output: C:\Program Files\Java\jdk-17

Linux / macOS

Open the terminal and add this to ~/.bashrc or ~/.zshrc:

export JAVA_HOME=/usr/lib/jvm/java-17-openjdk

export PATH=$JAVA_HOME/bin:$PATH

Apply changes:

source ~/.bashrc

Verify:

echo $JAVA_HOME

🔹 How JDK 17 is Used in Our Project

1. Compile & Run Java Code

o JDK 17 is required to compile our Employee Management System.

o When you run mvn spring-boot:run, it uses JDK 17.

2. Spring Boot Compatibility

o Spring Boot 3 requires Java 17 or later.

o Using Java 8 or 11 will not work for the latest Spring Boot versions.

3. Building JAR Files

o When you run mvn package, JDK 17 compiles the project and generates an executable JAR file.

🎯 Conclusion

JDK 17 is mandatory for running modern Spring Boot applications.
It provides better performance, security, and long-term support.
You must install JDK 17 and set up JAVA_HOME for Maven and Spring Boot to work properly.

🔹 What is Spring Boot?

Spring Boot is a powerful backend framework for building Java-based web applications and RESTful APIs. It is an extension of the Spring Framework that simplifies the development process by reducing boilerplate code and configuration effort.

✅ Key Features of Spring Boot:

Auto Configuration – Automatically configures necessary components.
Embedded Servers – Comes with Tomcat, Jetty, and Undertow, so no external deployment is needed.
Spring Boot Starter Packs – Pre-configured dependencies to speed up development.
Production-Ready – Built-in monitoring, logging, and security features.
Microservices Ready – Perfect for developing scalable enterprise applications.

🔹 Why Use Spring Boot for Web Development?

1. Rapid Development – No need for complex XML configurations.

2. Enterprise-Grade – Used in large-scale, high-performance applications.

3. REST API Support – Easily create APIs for web and mobile apps.

4. Integration with Databases – Supports MySQL, PostgreSQL, MongoDB, and more.

5. Secure – Built-in support for authentication and authorization (Spring Security).

🔹 How Spring Boot is Used in Our Employee Management System

In the Employee Management System, Spring Boot will handle the backend logic:

Expose REST APIs to perform CRUD operations (Create, Read, Update, Delete).
Connect to a MySQL database to store employee data.
Use Spring MVC for handling web requests.
Use JPA (Java Persistence API) for database operations.

✅ Technologies Used

Technology	Purpose
Spring Boot	Backend framework
Spring MVC	Handles HTTP requests
Spring Data JPA	Database interaction
Hibernate	ORM (Object Relational Mapping)
MySQL	Database storage
Spring Security	Authentication & Authorization

🔹 How to Set Up a Spring Boot Project (Step by Step)

1️⃣ Create a Spring Boot Project using Spring Initializr

Go to Spring Initializr
Select:

Project: Maven
Language: Java
Spring Boot Version: 3.1+ (Requires JDK 17+)
Dependencies:

Spring Web – To create REST APIs
Spring Data JPA – To interact with MySQL
MySQL Driver – To connect to MySQL database
Spring Boot DevTools – For auto-reloading during development

Click Generate and download the project.

2️⃣ Open the Project in an IDE

Extract the downloaded ZIP file.
Open it in IntelliJ IDEA, Eclipse, or VS Code.
Run:

mvn clean install

3️⃣ Configure the Database (application.properties)

Modify src/main/resources/application.properties:

spring.datasource.url=jdbc:mysql://localhost:3306/employee_db

spring.datasource.username=root

spring.datasource.password=yourpassword

spring.jpa.hibernate.ddl-auto=update

spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MySQL8Dialect

server.port=8080

📌 Make sure MySQL is running and replace yourpassword with your actual MySQL password.

4️⃣ Create the Employee Model (JPA Entity)

Create a new Java class inside com.example.model:

package com.example.model;

import jakarta.persistence.*;

@Entity

@Table(name = "employees")

public class Employee {

@Id

@GeneratedValue(strategy = GenerationType.IDENTITY)

private Long id;

private String name;

private String department;

private double salary;

// Getters and Setters

}

5️⃣ Create the Repository Layer

Create EmployeeRepository.java inside com.example.repository:

package com.example.repository;

import com.example.model.Employee;

import org.springframework.data.jpa.repository.JpaRepository;

public interface EmployeeRepository extends JpaRepository<Employee, Long> {

}

✅ Spring Data JPA provides built-in database methods like findAll(), save(), deleteById(), etc.

6️⃣ Create the Service Layer

Create EmployeeService.java inside com.example.service:

package com.example.service;

import com.example.model.Employee;

import com.example.repository.EmployeeRepository;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.stereotype.Service;

import java.util.List;

@Service

public class EmployeeService {

@Autowired

private EmployeeRepository repository;

public List<Employee> getAllEmployees() {

return repository.findAll();

}

public Employee saveEmployee(Employee employee) {

return repository.save(employee);

}

public void deleteEmployee(Long id) {

repository.deleteById(id);

}

7️⃣ Create the Controller Layer

Create EmployeeController.java inside com.example.controller:

package com.example.controller;

import com.example.model.Employee;

import com.example.service.EmployeeService;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.web.bind.annotation.*;

import java.util.List;

@RestController

@RequestMapping("/employees")

public class EmployeeController {

@Autowired

private EmployeeService employeeService;

@GetMapping

public List<Employee> getAllEmployees() {

return employeeService.getAllEmployees();

}

@PostMapping

public Employee createEmployee(@RequestBody Employee employee) {

return employeeService.saveEmployee(employee);

}

@DeleteMapping("/{id}")

public void deleteEmployee(@PathVariable Long id) {

employeeService.deleteEmployee(id);

}

✅ This provides a REST API for managing employees.

8️⃣ Run the Spring Boot Application

Run the main class EmployeeManagementApplication.java:

package com.example;

import org.springframework.boot.SpringApplication;

import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication

public class EmployeeManagementApplication {

public static void main(String[] args) {

SpringApplication.run(EmployeeManagementApplication.class, args);

}

Now, start the project using:

mvn spring-boot:run

✅ Your application will run on http://localhost:8080/employees.

🔹 Testing the APIs

Use Postman or cURL to test the APIs.

1️⃣ Get All Employees

curl -X GET http://localhost:8080/employees

2️⃣ Create a New Employee

curl -X POST http://localhost:8080/employees -H "Content-Type: application/json" -d '{

"name": "John Doe",

"department": "IT",

"salary": 50000

3️⃣ Delete an Employee

curl -X DELETE http://localhost:8080/employees/1

🎯 Conclusion

🔹 Spring Boot makes Java web development easier by handling backend logic, database connectivity, and REST APIs.
🔹 In the Employee Management System, Spring Boot provides a scalable and maintainable architecture.
🔹 We used Spring Data JPA, MySQL, and Spring Web to build the backend.

🔹 What is MySQL?

MySQL is a popular relational database management system (RDBMS) used for storing and managing structured data. It is open-source, fast, and reliable, making it ideal for web applications and enterprise systems.

✅ Key Features of MySQL

Scalability – Handles large datasets efficiently.
ACID Compliance – Ensures data integrity and transaction safety.
High Performance – Optimized for speed and efficiency.
Cross-Platform – Works on Windows, macOS, and Linux.
Secure – Provides user authentication and access control.

🔹 Why Use MySQL in Employee Management System?

In the Employee Management System, MySQL is used to:

Store employee data (name, department, salary, etc.).
Handle CRUD operations (Create, Read, Update, Delete).
Work with Spring Boot and JPA for seamless database integration.

🔹 Setting Up MySQL for Spring Boot Project

1️⃣ Install MySQL

Download from MySQL Official Website
Install MySQL Server and MySQL Workbench (optional for GUI management).
Start the MySQL service.

2️⃣ Create a New Database

Run the following SQL command in MySQL Workbench or the command line:

CREATE DATABASE employee_db;

📌 Ensure MySQL is running on port 3306 (default).

3️⃣ Configure MySQL in Spring Boot

Edit src/main/resources/application.properties:

spring.datasource.url=jdbc:mysql://localhost:3306/employee_db

spring.datasource.username=root

spring.datasource.password=yourpassword

spring.jpa.hibernate.ddl-auto=update

spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MySQL8Dialect

📌 Replace yourpassword with your actual MySQL password.

4️⃣ Create Employee Table (Automatically Handled by JPA)

Spring Boot auto-generates tables based on the Employee entity:

@Entity

@Table(name = "employees")

public class Employee {

@Id

@GeneratedValue(strategy = GenerationType.IDENTITY)

private Long id;

private String name;

private String department;

private double salary;

}

📌 No need to manually create tables if spring.jpa.hibernate.ddl-auto=update is set.

5️⃣ Verify MySQL Connection

Run the project:

mvn spring-boot:run

Check in MySQL Workbench:

SELECT * FROM employees;

✅ Employee records should be visible in the database!

🎯 Conclusion

MySQL stores and manages structured employee data.
It integrates seamlessly with Spring Boot using Spring Data JPA.
CRUD operations in Spring Boot directly interact with MySQL.

🔹 What is Maven?

Apache Maven is a build automation and dependency management tool for Java projects. It helps developers manage project builds, dependencies, and plugins efficiently.

✅ Key Features of Maven

Dependency Management – Automatically downloads required libraries from a central repository.
Build Automation – Simplifies compiling, packaging, and deploying Java applications.
Project Structure Standardization – Uses a convention-over-configuration approach.
Plugins & Extensions – Supports additional tools for testing, documentation, and deployment.

🔹 Why Use Maven in Employee Management System?

In the Employee Management System, Maven helps to:

Manage dependencies like Spring Boot, MySQL Connector, and JPA.
Automate the build process (compile, test, package, and run the project).
Ensure project portability and consistency across different environments.

🔹 How to Use Maven in the Project?

1️⃣ Install Maven (If Not Installed)

Windows: Download from Maven Official Website and add it to the system PATH.
Linux/macOS: Install via package manager:

sudo apt install maven # Ubuntu/Debian

brew install maven # macOS

Verify installation:

mvn -version

2️⃣ Create a Spring Boot Project with Maven

Use Spring Initializr (recommended) to generate a Maven-based project:

Go to Spring Initializr
Select:

Project: Maven
Language: Java
Spring Boot Version: Latest stable
Dependencies: Spring Web, Spring Data JPA, MySQL Driver

Click Generate and extract the ZIP file.

3️⃣ Understanding the pom.xml File (Maven Configuration)

The pom.xml file defines:

Project metadata (name, version, description).
Dependencies (external libraries like Spring Boot, MySQL).
Plugins (for build and testing).

Example pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0"

xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

xsi:schemaLocation="http://maven.apache.org/POM/4.0.0

http://maven.apache.org/xsd/maven-4.0.0.xsd">

<groupId>com.example</groupId>

<artifactId>employee-management</artifactId>

<groupId>org.springframework.boot</groupId>

<artifactId>spring-boot-starter-web</artifactId>

</dependency>

<groupId>org.springframework.boot</groupId>

<artifactId>spring-boot-starter-data-jpa</artifactId>

</dependency>

<groupId>mysql</groupId>

<artifactId>mysql-connector-java</artifactId>

</dependency>

<groupId>org.springframework.boot</groupId>

<artifactId>spring-boot-starter-test</artifactId>

</dependency>

</dependencies>

<build>

<groupId>org.apache.maven.plugins</groupId>

<artifactId>maven-compiler-plugin</artifactId>

</configuration>

</plugin>

</plugins>

</build>

</project>

📌 Key Sections in pom.xml:

<dependencies> – Defines libraries needed for the project.
<build> – Specifies compilation and plugins.
<version> – Defines the Java version compatibility.

4️⃣ Running the Project Using Maven

Once dependencies are configured:

Compile the project:

mvn clean compile

Run the Spring Boot Application:

mvn spring-boot:run

Package into a JAR file:

mvn clean package

Run the JAR file:

java -jar target/employee-management-1.0.0.jar

🎯 Conclusion

Maven simplifies dependency management and builds in Java projects.
It automates compiling, testing, and packaging.
Spring Boot projects use Maven to fetch required libraries effortlessly.

🔹 What is Postman?

Postman is a powerful API testing tool that helps developers build, test, and document APIs efficiently. It provides an easy-to-use interface to send requests to APIs and inspect responses.

🔹 Why Use Postman in Employee Management System?

When developing a Spring Boot-based Employee Management System, the backend exposes REST APIs for operations like:

Adding an employee (POST /employees)
Fetching employees (GET /employees)
Updating employee details (PUT /employees/{id})
Deleting an employee (DELETE /employees/{id})

Postman helps by: ✅ Testing APIs without writing a frontend.
✅ Validating request and response formats.
✅ Debugging backend issues faster.

🔹 How to Use Postman for API Testing?

1️⃣ Install Postman

Download from Postman Official Website
Install it on Windows, macOS, or Linux.

2️⃣ Test APIs in Postman

Once your Spring Boot application is running (mvn spring-boot:run), test the APIs:

🔹 Example: Testing Employee Management APIs

1️⃣ Test POST /employees (Create an Employee)

Open Postman.
Select POST.
Enter URL: http://localhost:8080/employees
Go to Body → Select raw → Choose JSON.
Enter the request body:

{

"name": "John Doe",

"email": "john.doe@example.com",

"position": "Software Engineer"

}

Click Send.
If successful, it returns a 201 Created response.

2️⃣ Test GET /employees (Fetch Employees)

Select GET.
Enter URL: http://localhost:8080/employees
Click Send.
It returns a list of employees.

3️⃣ Test PUT /employees/{id} (Update Employee)

Select PUT.
Enter URL: http://localhost:8080/employees/1
Go to Body → Select raw → Choose JSON.
Enter:

{

"name": "John Doe",

"email": "john.doe@company.com",

"position": "Senior Developer"

}

Click Send.

4️⃣ Test DELETE /employees/{id} (Delete Employee)

Select DELETE.
Enter URL: http://localhost:8080/employees/1
Click Send.

🎯 Conclusion

Postman simplifies API testing in your Employee Management System.
It helps validate API requests and responses without needing a frontend.
You can save requests for future testing and debugging.

🔹 What is an IDE?

An IDE (Integrated Development Environment) is a software application that provides a complete environment for coding, debugging, and managing software projects. It includes:
✅ A code editor (for writing code)
✅ A compiler/interpreter (for running code)
✅ Debugging tools (to find and fix errors)
✅ Version control support (e.g., Git)

🔹 Popular IDEs for Java Development

When developing a Spring Boot Employee Management System, you can use any of the following IDEs:

1️⃣ IntelliJ IDEA (Recommended for Spring Boot)

✔Developed by: JetBrains
✔ Best for: Java & Spring Boot development
✔ Features:

Smart code suggestions
Built-in Spring Boot support
Advanced debugging tools
Integrated Maven and Gradle
✔ Download: IntelliJ IDEA

2️⃣ Eclipse (Popular for Java)

✔ Developed by: Eclipse Foundation
✔ Best for: General Java development
✔ Features:

Open-source and free
Supports Java EE, Spring, and Maven
Customizable with plugins
✔ Download: Eclipse

3️⃣ Spring Tool Suite (STS)

✔ Developed by: VMware
✔ Best for: Spring Boot development
✔ Features:

Preconfigured for Spring Boot
Built-in support for Spring projects
Integrated Maven support
✔ Download: Spring Tool Suite (STS)

4️⃣ Visual Studio Code (VS Code)

✔ Developed by: Microsoft
✔ Best for: Lightweight Java development
✔ Features:

Fast and lightweight
Requires Java extensions (e.g., "Extension Pack for Java")
Supports Java, Node.js, and more
✔ Download: VS Code

🔹 Which IDE Should You Choose?

For beginners → STS or Eclipse (simple setup, Spring support).
For professional Java development → IntelliJ IDEA (best for large projects).
For lightweight development → VS Code (requires extensions).

🎯 Conclusion

An IDE helps you write, debug, and manage your Java code efficiently. If you’re developing a Spring Boot-based Employee Management System, I recommend using IntelliJ IDEA or STS for the best experience.

How to Use IntelliJ IDEA (Community Edition) for Spring Boot Development 🚀

Since you're developing an Employee Management System using Spring Boot, JSP, and MySQL, IntelliJ IDEA is a great choice. Here’s a step-by-step guide to setting up and running your Spring Boot project.

🔹 Step 1: Download and Install IntelliJ IDEA

1️⃣ Download IntelliJ IDEA (Community Edition)

Go to IntelliJ IDEA Download Page
Download Community Edition (FREE)

2️⃣ Install IntelliJ IDEA

Run the installer and follow the setup instructions
During installation, select:

✅ Java Development
✅ Maven & Gradle (for dependency management)
✅ Spring Boot Plugin (optional, but useful)

🔹 Step 2: Install Java Development Kit (JDK 21)

Since your Java version is 21.0.1 (LTS), you don't need to install a new JDK.
If you haven't installed Java, download it from:
🔗 JDK 21 Download

🔹 Step 3: Create a New Spring Boot Project in IntelliJ IDEA

Method 1: Using Spring Initializr (Recommended)

1️⃣ Open IntelliJ IDEA
2️⃣ Click on "New Project"
3️⃣ Select Spring Initializr
4️⃣ Configure project settings:

Project SDK: Select Java 21
Language: Java
Spring Boot Version: Choose latest stable (e.g., 3.x.x)
Project Name: employee-management
Group ID: com.example
Artifact ID: employee-management

5️⃣ Click Next and add dependencies:

✅ Spring Web (for REST APIs & Controllers)
✅ Spring Data JPA (for database interaction)
✅ MySQL Driver (for database connection)
✅ Spring Boot Dev Tools(Provide Live reload for first development.
✅ Lombok (to reduce boilerplate code)
✅ Tomcat Embed Jasper (to support JSP)
✅ JSTL (for JSP tag library)

6️⃣ Click Finish → IntelliJ IDEA will download and set up your project 🚀

Method 2: Import an Existing Spring Boot Project

If you created your project using Spring Initializr online (start.spring.io):
1️⃣ Open IntelliJ IDEA
2️⃣ Click Open Project
3️⃣ Select your project folder (employee-management)
4️⃣ IntelliJ will detect pom.xml and ask to import dependencies → Click Import
5️⃣ Wait for dependencies to load and start coding! ✅

🔹 Step 4: Configure MySQL Database in application.properties

1️⃣ Open src/main/resources/application.properties
2️⃣ Add your MySQL database connection details:

spring.datasource.url=jdbc:mysql://localhost:3306/employee_db

spring.datasource.username=root

spring.datasource.password=yourpassword

spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver

# JPA settings

spring.jpa.database-platform=org.hibernate.dialect.MySQL8Dialect

spring.jpa.hibernate.ddl-auto=update

spring.jpa.show-sql=true

📌 Note: Replace yourpassword with your actual MySQL password.

🔹 Step 5: Run the Spring Boot Application

1️⃣ Open EmployeeManagementApplication.java (inside src/main/java/com/example/employee-management/)
2️⃣ Click Run ▶ or use Shift + F10
3️⃣ If successful, you’ll see:

nginx

CopyEdit

Tomcat started on port 8080

Application started successfully!

🚀 Now, your Spring Boot project is running at:
🔗 http://localhost:8080

🔹 Step 6: Create Employee Entity & Repository

Create an Entity Class: Employee.java
📂 src/main/java/com/example/employee-management/model/Employee.java

java

CopyEdit

package com.example.employee_management.model;

import jakarta.persistence.*;

import lombok.Data;

@Entity

@Data

@Table(name = "employees")

public class Employee {

@Id

@GeneratedValue(strategy = GenerationType.IDENTITY)

private Long id;

@Column(nullable = false)

private String name;

@Column(nullable = false, unique = true)

private String email;

@Column(nullable = false)

private String department;

}

Create Repository Interface: EmployeeRepository.java
📂 src/main/java/com/example/employee-management/repository/EmployeeRepository.java

java

CopyEdit

package com.example.employee_management.repository;

import org.springframework.data.jpa.repository.JpaRepository;

import com.example.employee_management.model.Employee;

public interface EmployeeRepository extends JpaRepository<Employee, Long> {

}

🔹 Step 7: Create Controller and JSP View

Create Controller: EmployeeController.java
📂 src/main/java/com/example/employee-management/controller/EmployeeController.java

java

CopyEdit

package com.example.employee_management.controller;

import org.springframework.stereotype.Controller;

import org.springframework.ui.Model;

import org.springframework.web.bind.annotation.GetMapping;

import com.example.employee_management.repository.EmployeeRepository;

@Controller

public class EmployeeController {

private final EmployeeRepository employeeRepository;

public EmployeeController(EmployeeRepository employeeRepository) {

this.employeeRepository = employeeRepository;

}

@GetMapping("/employees")

public String listEmployees(Model model) {

model.addAttribute("employees", employeeRepository.findAll());

return "employees";

}

Create JSP File for Display: employees.jsp
📂 src/main/webapp/WEB-INF/views/employees.jsp

jsp

CopyEdit

<%@ page contentType="text/html;charset=UTF-8" language="java" %>

<html>

<head>

<title>Employee List</title>

</head>

<body>

<h2>Employee List</h2>

<tr>

<th>Email</th>

<th>Department</th>

</tr>

<c:forEach var="employee" items="${employees}">

<tr>

<td>${employee.id}</td>

<td>${employee.name}</td>

<td>${employee.email}</td>

<td>${employee.department}</td>

</tr>

</c:forEach>

</table>

</body>

</html>

🔹 Step 8: Restart and Test the Application

1️⃣ Run the Application (Shift + F10)
2️⃣ Go to Browser:

📌 http://localhost:8080/employees → Shows Employee List

🎯 Summary: What We Did

✅ Installed IntelliJ IDEA (Community Edition)
✅ Created a Spring Boot Project with JSP & MySQL
✅ Configured MySQL Database
✅ Created Employee Entity & Repository
✅ Created Employee Controller & JSP View
✅ Successfully Ran the Application 🚀

💡 Next Steps

1️⃣ Add Create, Update, Delete Operations
2️⃣ Add Bootstrap for Better UI
3️⃣ Use Spring Security for Login (Optional)

Would you like me to help with CRUD operations next? 😊

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