Spring Boot Custom 404 Response - Spring-boot Typing CST Test

Spring Boot Custom 404 Response — Spring-boot Code

Custom error handling for 404 requests.

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.http.HttpStatus;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.servlet.NoHandlerFoundException;

@SpringBootApplication
public class ErrorApplication {
	public static void main(String[] args) {
		SpringApplication.run(ErrorApplication.class, args);
	}
}

@RestController
@ControllerAdvice
class ErrorController {
	@ExceptionHandler(NoHandlerFoundException.class)
	@ResponseStatus(HttpStatus.NOT_FOUND)
	public String handle404() {
		return "Custom 404 Not Found";
	}
}

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Spring Boot is a Java-based framework that simplifies building production-ready Spring applications. It provides convention-over-configuration, embedded servers, and production-grade features for microservices and web applications.

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