Java response bad request

Commonly used status codes defined by HTTP, see HTTP/1.1 documentation for the complete list. Additional status codes can be added by applications by creating an implementation of Response.StatusType .

Nested Class Summary

Enum Constant Summary

Method Summary

Methods inherited from class java.lang.Enum

Methods inherited from class java.lang.Object

Enum Constant Detail

OK

CREATED

ACCEPTED

NO_CONTENT

RESET_CONTENT

PARTIAL_CONTENT

MOVED_PERMANENTLY

FOUND

SEE_OTHER

NOT_MODIFIED

USE_PROXY

TEMPORARY_REDIRECT

BAD_REQUEST

UNAUTHORIZED

PAYMENT_REQUIRED

FORBIDDEN

NOT_FOUND

METHOD_NOT_ALLOWED

NOT_ACCEPTABLE

PROXY_AUTHENTICATION_REQUIRED

public static final Response.Status PROXY_AUTHENTICATION_REQUIRED

REQUEST_TIMEOUT

CONFLICT

GONE

LENGTH_REQUIRED

PRECONDITION_FAILED

REQUEST_ENTITY_TOO_LARGE

REQUEST_URI_TOO_LONG

UNSUPPORTED_MEDIA_TYPE

REQUESTED_RANGE_NOT_SATISFIABLE

public static final Response.Status REQUESTED_RANGE_NOT_SATISFIABLE

EXPECTATION_FAILED

INTERNAL_SERVER_ERROR

NOT_IMPLEMENTED

BAD_GATEWAY

SERVICE_UNAVAILABLE

GATEWAY_TIMEOUT

HTTP_VERSION_NOT_SUPPORTED

public static final Response.Status HTTP_VERSION_NOT_SUPPORTED

Method Detail

values

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (Response.Status c : Response.Status.values()) System.out.println(c);

valueOf

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

getFamily

getStatusCode

getReasonPhrase

toString

fromStatusCode

public static Response.Status fromStatusCode(int statusCode)

Источник

Spring: Best Ways to return HTTP 400 Bad Request

In HTTP requests, a 400 Bad Request response status code indicates that the server cannot process the request due to a client error (eg. malformed request syntax, invalid request message framing, or deceptive request routing).

In Spring controller in most cases, the Spring framework handles most of the syntax and payload validation and responds 400 bad requests. But many times we need to do more validation of the request payload or during processing, our code determines the wrong parameters and returns a Bad request.

To do this first of all you need to change the return type to ResponseEntity<> , and then you can use the below for return 400 status:

@ApiOperation(value = "Add new email and company for 2F authentication",response = TotpResource.class) @PostMapping(consumes = "application/json", produces = "application/json") public ResponseEntity addNew(@Valid @RequestBody TotpResource totpResource) < if(Strings.isStringEmpty(totpResource.getEmailId())< return new ResponseEntity<>(HttpStatus.BAD_REQUEST); > totpResource = this.totpService.addNew(totpResource); return ResponseEntity.created(URI.create("/" + totpResource.getEmailId())).body(totpResource); >

After Spring 4.1 there are helper methods in ResponseEntity util class which could be used as:

@ApiOperation(value = "Add new email and company for 2F authentication",response = TotpResource.class) @PostMapping(consumes = "application/json", produces = "application/json") public ResponseEntity addNew(@Valid @RequestBody TotpResource totpResource) < if(Strings.isStringEmpty(totpResource.getEmailId())< return ResponseEntity.status(HttpStatus.BAD_REQUEST).body(Arrays.asList(new String[])); > totpResource = this.totpService.addNew(totpResource); return ResponseEntity.created(URI.create("/" + totpResource.getEmailId())).body(totpResource); >

It is always good to return a detailed error message in a bad request response body, that will be used to understand the problem by the client.

Another way but not the best ways if you don’t want to change the the return type and other things then you just add HttpServletResponse response in the existing method, if not present already, and set the response status as given below.

@RequestMapping(value = "/matches/", produces = "application/json") @ResponseBody public String matchMethod(@PathVariable String matchId, @RequestBody String body, HttpServletRequest request, HttpServletResponse response) < String json = matchService.getMatchJson(matchId); if (json == null) < response.setStatus( HttpServletResponse.SC_BAD_REQUEST ); >return json; >

Источник