Returning different status codes in Spring Boot - Cheat Sheet & Quick Revision

Recall & Review

beginner

How do you return a 200 OK status with a response body in Spring Boot?

Use ResponseEntity.ok(body) to return a 200 OK status with the given response body.

beginner

What class in Spring Boot helps you customize HTTP status codes in responses?

The <code>ResponseEntity</code> class allows you to set the HTTP status code, headers, and body in your response.

beginner

How can you return a 404 Not Found status when a resource is missing?

Return ResponseEntity.notFound().build() to send a 404 Not Found status without a body.

intermediate

What annotation can you use to set the HTTP status code directly on a controller method?

Use <code>@ResponseStatus(HttpStatus.CODE)</code> on a method or exception class to set the HTTP status code.

intermediate

How do you return a 201 Created status with a location header in Spring Boot?

Use ResponseEntity.created(URI).body(body) to return 201 Created with a Location header pointing to the new resource.

Which Spring Boot class lets you set HTTP status codes in responses?

A HttpServletRequest

B RequestMapping

C RestController

D ResponseEntity

ResponseEntity is used to customize HTTP status codes, headers, and body in Spring Boot responses.

How do you return a 404 Not Found status without a body?

A return new ResponseEntity<>(HttpStatus.OK);

B return ResponseEntity.notFound().build();

C return ResponseEntity.ok().build();

D return ResponseEntity.badRequest().build();

ResponseEntity.notFound().build() returns a 404 status with no body.

Which annotation sets a fixed HTTP status code on a controller method?

A @ResponseStatus

B @RestController

C @GetMapping

D @RequestMapping

@ResponseStatus sets the HTTP status code for the method or exception.

What status code is typically returned when a new resource is created?

A 200 OK

B 404 Not Found

C 201 Created

D 500 Internal Server Error

201 Created indicates a new resource was successfully created.

How do you include a Location header pointing to a new resource in the response?

A ResponseEntity.created(URI).body(body)

B ResponseEntity.ok().header("Location", url).body(body)

C ResponseEntity.badRequest().build()

D ResponseEntity.notFound().build()

ResponseEntity.created(URI).body(body) sets the Location header and returns 201 Created.

Explain how to return different HTTP status codes from a Spring Boot controller method.

Think about ResponseEntity methods and the @ResponseStatus annotation.

Describe how to return a 201 Created status with a Location header in Spring Boot.

Focus on ResponseEntity.created and URI usage.