Difference between @RestController and @Controller.

Best Full Stack Java Training Institute in Hyderabad with Live Internship Program

Are you aiming to build a strong foundation in software development and land your dream job in the IT industry? Look no further than Quality Thought, the best Full Stack Java training institute in Hyderabad, known for its industry-focused training and valuable live internship program.

Quality Thought’s Full Stack Java course is designed for both beginners and professionals who want to master the skills required to develop real-world web applications. The course covers everything from Core Java, Advanced Java, JDBC, Servlets, JSP, Spring, Spring Boot, Hibernate, to front-end technologies like HTML, CSS, JavaScript, Bootstrap, Angular, and React.

What makes this training truly effective is the live internship, which provides hands-on experience on real-time projects. Students work in a simulated industry environment, dealing with actual coding tasks, debugging, deployment, version control, and team collaboration. This practical exposure helps learners build confidence and problem-solving skills—critical assets in any software job.

Program Highlights:

Comprehensive Full Stack Java Curriculum

Real-Time Projects with Live Internship

Mentorship from Industry Experts

Daily Practice, Assignments & Project Work

Resume Preparation, Mock Interviews & Placement Assistance

Internship Certificate & Career Guidance

Whether you're a fresher just out of college or a working professional planning a career switch, Quality Thought offers the best platform to become a skilled Full Stack Java Developer. With a focus on practical learning and job readiness, many of our students are now placed in top IT companies across India.

Join Quality Thought today – Get trained, get certified, gain real-world experience, and step confidently into the IT industry!

The key difference is what they return: @Controller is designed to return views (like HTML pages), while @RestController is designed to return data (like JSON or XML).

@RestController is simply a convenience annotation that combines @Controller and @ResponseBody.

@Controller 🧑‍🏫

Think of @Controller as the director of a traditional web application. Its main job is to handle a user's request and then point them to the correct webpage.

• Primary Use: Building classic web applications where the server renders and sends HTML pages to the browser.

• How it Works: A method in a @Controller typically returns a string, which is the name of a view template (e.g., "user-dashboard"). Spring then finds that template, fills it with data, and sends the final HTML page back to the user.

• Returning Data: If you want a method in a @Controller to return raw data instead of a view, you have to explicitly tell it to do so by adding another annotation called @ResponseBody.

@RestController 🤖

Think of @RestController as a data provider for modern applications. Its only job is to handle a request and send back raw data, not a full webpage.

• Primary Use: Building REST APIs that serve data to other clients, such as a mobile app, a JavaScript front-end (like React or Angular), or another backend service.

• How it Works: It automatically includes the @ResponseBody behavior for all its methods. This means whatever object a method returns is automatically converted into a data format like JSON and sent back in the response. You don't need to add any extra annotations.

Summary

• Use @Controller when your application is responsible for building and displaying HTML pages.

• Use @RestController when you are building an API that just needs to provide data to another application.

Read more :

What is the purpose of @Autowired annotation?

What is REST API? How do you build it using Spring Boot?

Visit  Quality Thought Training Institute in Hyderabad