Explore the best job-oriented courses to boost your career in today’s competitive market. From technical programs like AI, Data Science, and Full Stack Development to soft skills and certification courses, this category covers everything freshers and professionals need to land high-paying jobs and stay industry-relevant in 2025 and beyond.
ByVed Maurya
Updated
In a microservices architecture, each service usually has its own endpoint. Managing all these endpoints manually is tedious and error-prone. That’s where Spring Cloud Gateway steps in as a powerful, scalable, and simple solution for routing requests to various services via a single entry point. In this article, you will:…
ByVed Maurya
Updated
In a microservices architecture, services must locate each other without hardcoded URLs. Service Discovery solves this by registering each service with a centralized registry. One of the most popular tools for this in the Spring ecosystem is Netflix Eureka. In this tutorial, you will: Let’s build it step-by-step. 📦 Project…
![Building REST APIs with Spring MVC [Java Spring Boot Mastery Series – Part 3]](https://seoinfotech.com/wp-content/uploads/2025/06/jav-spring-boot-mastery--300x200.png)
ByVed Maurya
Updated
🎯 Objective In this section, you will learn how to: 🔧 Step 1: Create a Model Class 🔍 Explanation 📦 Step 2: Create a Repository 🔍 Explanation 🧠 Step 3: Create a Service Layer 🔍 Explanation 🌐 Step 4: Create a REST Controller 🔍 Explanation 🚫 Optional: Custom Exception Handling…
ByVed Maurya
Updated
🎯 Objective Learn to validate incoming data using annotations and handle exceptions globally for consistent and informative error responses. ✅ Add Validation Dependency (if not already included) In pom.xml: This enables Java Bean Validation using annotations like @NotNull, @Size, etc. 🧾 Update Product Entity with Validation 🔍 Explanation 🔁 Update…
ByVed Maurya
Updated
🎯 Objective Separate internal models from external API contracts using DTOs (Data Transfer Objects) and simplify object mapping using ModelMapper. 📦 Step 1: Create a ProductDTO Class 🔍 Explanation 🔧 Step 2: Add ModelMapper Bean 🔍 Explanation 🔁 Step 3: Update Service to Use DTOs 🔍 Explanation 🌐 Step 4:…
ByVed Maurya
Updated
🎯 Objective Understand how to model relationships between entities in a Spring Boot application using JPA annotations, including: 🧱 Example Domain Let’s model a simple domain with the following: 1️⃣ One-to-One: User and Profile 🔍 Notes: 2️⃣ One-to-Many and Many-to-One: User and Orders 🔍 Notes: 3️⃣ Many-to-Many: Order and Product…
ByVed Maurya
Updated
Spring Data JPA allows you to define custom queries using method names or the @Query annotation. 🛠️ 1. Derived Query Methods Spring Data JPA can derive queries based on method names: 🔍 Description: 💡 Tip: Use descriptive method names for clarity. 📜 2. Custom Queries with @Query You can write…
ByVed Maurya
Updated
To use MySQL with Spring Boot, you’ll configure the database connection, define entities, and use Spring Data JPA repositories. 🧰 1. Add MySQL & JPA Dependencies (Maven) Description: ⚙️ 2. Configure application.properties Description: 🧱 3. Define Entity Example Description: 📦 4. Repository Interface 🧪 5. Load Sample Data (Optional) Use…
ByVed Maurya
Updated
Swagger helps developers explore and test REST APIs directly from a browser. Spring Boot integrates Swagger through the Springfox or springdoc–openapi libraries. 🧰 1. Add Swagger Dependency (Spring Boot 3+ with springdoc-openapi) Description: ⚙️ 2. Access Swagger UI Once you start your Spring Boot app, navigate to: You’ll see a…
ByVed Maurya
Updated
Spring Security provides a robust authentication and authorization framework for securing Spring Boot applications. 1️⃣ Basic Authentication Basic Auth is the simplest way to protect endpoints using HTTP headers. ✅ Dependencies Already included in spring-boot-starter-security: 🔐 Security Configuration (Spring Boot 3+) 🔍 Explanation: 2️⃣ JWT (JSON Web Tokens) JWT is…
ByVed Maurya
Updated
Monitoring and logging are vital for observing the health and behavior of your Spring Boot application. 📝 1. Logging with Spring Boot (SLF4J + Logback) Spring Boot uses SLF4J with Logback by default. Example: 📌 Explanation: ⚙️ 2. Customize Logging Level in application.properties Explanation: 🔍 3. Actuator for Monitoring Spring…
ByVed Maurya
Updated
Testing ensures the reliability and maintainability of your codebase. ✅ 1. Unit Testing with JUnit and Mockito Dependency (Maven) Sample Unit Test (Service Layer) Explanation: 🔄 2. Integration Testing with TestRestTemplate Sample Test Explanation: 🧹 3. Best Practices for Testing ➡️ Next Up: Part 13 – Spring Boot with Docker…