Why SpringMVC Request method 'GET' not supported?

Question

I trying @RequestMapping(value = "/test", method = RequestMethod.POST) but is error

Code is

 @Controller
 public class HelloWordController {
 private Logger logger = LoggerFactory.getLogger(HelloWordController.class);

 @RequestMapping(value = "/test", method = RequestMethod.POST)
 public String welcome() {
  logger.info("Spring params is welcome");
  return "/WEB-INF/jsp/welcome";
 }

}

web.xml is

<servlet>
<description>This is Spring MVC DispatcherServlet</description>
<servlet-name>SpringMVC DispatchServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
  <description>SpringContext</description>
  <param-name>contextConfigLocation</param-name>
  <param-value>classpath*:springmvc.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>

  <servlet-mapping>
<servlet-name>SpringMVC DispatchServlet</servlet-name>
<url-pattern>/</url-pattern>

and springmvc.xml is

index.jsp is

<form action="<%=request.getContextPath() %>/test" method="post">
<input type="submit" value="submit"> 
</form>

I input submit botton brower is error

HTTP Status 405 - Request method 'GET' not supported type Status report

message Request method 'GET' not supported

description The specified HTTP method is not allowed for the requested resource (Request method 'GET' not supported).

Wagner

Do you see the log message in the welcome() method? – Fighterbomber

I'm still unclear about how to resolve this, there is no good answer here. No one explained why we can't do RequestMethod.POST. Can someone follow up? I don't understand any of the comments. – Macbeth

Answer 1

Change

@RequestMapping(value = "/test", method = RequestMethod.POST)

To

@RequestMapping(value = "/test", method = RequestMethod.GET)

Stimulate

Why does method=RequestMethod.POST not work? The form method is POST and the action URL is /test, so I would have thought it will work. – Watercolor

@WebUser it is a myth, some says tomcat disables it by default, so they have to apply filter in web.xml but what if a dev is making an API with SPRING Boot framework, even today in 2016/March it is giving same error, but Using GET works clean and perfect in address bar.! Answer would be that one has to make whole panel then write Ajax calls to Delete/Put/Post to work.! – Cotemporary

Answer 2

method = POST will work if you 'post' a form to the url /test.

if you type a url in address bar of a browser and hit enter, it's always a GET request, so you had to specify POST request.

Google for HTTP GET and HTTP POST (there are several others like PUT DELETE). They all have their own meaning.

Wellfounded

this is by far the cleanest explanation of why my Spring API gives 'GET' not supported when i am using RequestMethod.DELETE in my Controller.! – Cotemporary

This does not solve the issue, it just explains basic knowledge. The "Resolved [org.springframework.web.HttpRequestMethodNotSupportedException: Request method 'GET' not supported]" always appears when sending a form via POST. – Safier

Answer 3

Apparently some POST requests looks like a "GET" to the server (like Heroku...)

So I use this strategy and it works for me:

@RequestMapping(value = "/salvar", method = { RequestMethod.GET, RequestMethod.POST })

Brambly

Could this cause any security issue to add RequestMethod.GET to a RequestMethod.POST form (i.e. login form) ? – Cultch

method = { RequestMethod.GET, RequestMethod.POST } is considered as security hotspot in SonarQube. Its betted to use GET or POST at a time. Avoid to use both together. – Manutius

Answer 4

For me the problem was that I forgot to add a protocol to baseUrl in my postman request. After I've added "https://", it worked like a charm.

Heulandite

Answer 5

I solved this error by including a get and post request in my controller: method={RequestMethod.POST, RequestMethod.GET}

Morganne

Answer 6

Are you working with Angular? I had the same problem and it was because I was using subscribe and they changed their implementation (This deprecation was introduced in RxJS 6.4.) It worked for me using it like this:

import { of } from 'rxjs';

// recommended of([1,2,3]).subscribe((v) => console.info(v));

Harry

Answer 7

I also had the same issue. I changed it to the following and it worked.

Java :

@RequestMapping(value = "/test", method = RequestMethod.GET)

HTML code:

  <form action="<%=request.getContextPath() %>/test" method="GET">
    <input type="submit" value="submit"> 
    </form>

By default if you do not specify http method in a form it uses GET. To use POST method you need specifically state it.

Hope this helps.

Willingham

so why do you specifically state "GET"? – Salty

Answer 8

if You are using browser it default always works on get, u can work with postman tool,otherwise u can change it to getmapping.hope this will works

Slyke

Answer 9

I solved this error by including json data into postman body part and then hit the postmapping url

Rostov

Answer 10

For me dosn't work I put solution abowe, You have to implement whole path like it's on pictures. Good luck

As well don't forget use:

@Service
@Transactional
public class RoomService {

    @RequestMapping(value = "/{roomId}/status/{status}", method = RequestMethod.GET)
    public ResponseEntity<String> changeRoomStatus(
            @PathVariable int roomId,
            @PathVariable RoomStatus status) {

        try {
            roomService.changeRoomStatus(roomId, status);
            return ResponseEntity.ok("Room status changed successfully.");
        } catch (RoomNotFoundException e) {
            return ResponseEntity.status(HttpStatus.NOT_FOUND).body("Room not found.");
        } catch (Exception e) {
            return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR)
                    .body("Error changing room status: " + e.getMessage());
        }
    }

Primine