Spring Framework is a powerful, lightweight, and widely used Java framework for building enterprise applications.
ByVed Maurya
Updated
Learn how to implement Redis caching in Spring Boot microservices. Includes a complete working example with step-by-step guide, TTL, cache eviction, and performance boost. This post includes ✅ How to cache data in Spring Boot microservices✅ How to use Redis as a distributed cache✅ How to implement TTL (time-to-live), eviction,…
ByVed Maurya
Updated
In a microservices environment, a single failing service can cascade and cause other services to fail. To prevent this, we use Resilience4j to implement Circuit Breaker patterns that provide graceful degradation and stability. Service Resilience — ensuring that your system remains responsive and fault-tolerant under failure conditions In this tutorial,…
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…
ByVed Maurya
Updated
Java interview preparation should focus on core concepts like OOP principles (encapsulation, inheritance, polymorphism, abstraction), data types, control structures, exception handling, and collections. Understand JVM internals, memory management, garbage collection, and Java 8+ features like streams, lambdas, and functional interfaces. Be confident with multithreading, synchronization, and concurrency utilities. Master important…
![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…