Content type 'application/x-www-form-urlencoded;charset=UTF-8' not supported for @RequestBody MultiValueMap

Question

Based on the answer for problem with x-www-form-urlencoded with Spring @Controller

I have written the below @Controller method

@RequestMapping(value = "/{email}/authenticate", method = RequestMethod.POST
            , produces = {"application/json", "application/xml"}
            ,  consumes = {"application/x-www-form-urlencoded"}
    )
     public
        @ResponseBody
        Representation authenticate(@PathVariable("email") String anEmailAddress,
                                    @RequestBody MultiValueMap paramMap)
                throws Exception {


            if(paramMap == null || paramMap.get("password") == null) {
                throw new IllegalArgumentException("Password not provided");
            }
    }

the request to which fails with the below error

{
  "timestamp": 1447911866786,
  "status": 415,
  "error": "Unsupported Media Type",
  "exception": "org.springframework.web.HttpMediaTypeNotSupportedException",
  "message": "Content type 'application/x-www-form-urlencoded;charset=UTF-8' not supported",
  "path": "/users/usermail%40gmail.com/authenticate"
}

[PS: Jersey was far more friendly, but couldn't use it now given the practical restrictions here]

Solution 1

The problem is that when we use application/x-www-form-urlencoded, Spring doesn't understand it as a RequestBody. So, if we want to use this we must remove the @RequestBody annotation.

Then try the following:

@RequestMapping(value = "/{email}/authenticate", method = RequestMethod.POST,
        consumes = MediaType.APPLICATION_FORM_URLENCODED_VALUE, 
        produces = {MediaType.APPLICATION_ATOM_XML_VALUE, MediaType.APPLICATION_JSON_VALUE})
public @ResponseBody  Representation authenticate(@PathVariable("email") String anEmailAddress, MultiValueMap paramMap) throws Exception {
   if(paramMap == null && paramMap.get("password") == null) {
        throw new IllegalArgumentException("Password not provided");
    }
    return null;
}

Note that removed the annotation @RequestBody

answer: Http Post request with content type application/x-www-form-urlencoded not working in Spring

Solution 2

It seems that now you can just mark the method parameter with @RequestParam and it will do the job for you.

@PostMapping( "some/request/path" )
public void someControllerMethod( @RequestParam Map<String, String> body ) {
  //work with Map
}

Solution 3

Add a header to your request to set content type to application/json

curl -H 'Content-Type: application/json' -s -XPOST http://your.domain.com/ -d YOUR_JSON_BODY

this way spring knows how to parse the content.

Solution 4

In Spring 5

@PostMapping( "some/request/path" )
public void someControllerMethod( @RequestParam MultiValueMap body ) {

    // import org.springframework.util.MultiValueMap;

    String datax = (String) body .getFirst("datax");
}

Solution 5

@RequestBody MultiValueMap paramMap

in here Remove the @RequestBody Annotaion

@RequestMapping(value = "/signin",method = RequestMethod.POST)
public String createAccount(@RequestBody LogingData user){
    logingService.save(user);
    return "login";
}




@RequestMapping(value = "/signin",method = RequestMethod.POST)
public String createAccount( LogingData user){
    logingService.save(user);
    return "login";
} 

like that

View more solutions

Comments

[kholofelo Maloma]

Thank you! Solves the problem. Now I wonder how do we explicitly remove the application/x-www-form-urlencoded ?

[razvanone]

You might need to also add an Accept header to your command: 'curl -vk -H "Accept: application/json" -H "Content-Type: application/json" ' etc.

[Osama Al-Banna]

can you please explain how to add this setting to my HTML form ?

[Douglas Ribeiro]

it is not necessary @kholofeloMaloma

[NemanjaT]

Yeah, with inclusion of consumer=MediaType.APPLICATION_FORM_URLENCODED_VALUE in mapping, you deserve more points sir! thank you! @RequestParam seams to be required now for picking up MultiValueMap from the request

[bluemind]

If anyone wondered why this works without any annotation, it seems Spring handles any non annotated arguments as if they have @ModelAttribute, even though this behaviour is (sadly) not documented. And @ModelAttribute does understand x-www-form-urlencoded

[withoutOne]

public ResponseEntity<?> getToken(MultiValueMap paramMap) IllegalArgumentException: argument type mismatch

[torez233]

Thanks for the info! As a newbie, I am wondering what's the reason behind this little odd behaviour for Spring to parse the payload and bind it to object?

[Yunnosch]

While this code may solve the question, including an explanation of how and why this solves the problem would really help to improve the quality of your post, and probably result in more up-votes. Remember that you are answering the question for readers in the future, not just the person asking now. Please edit your answer to add explanations and give an indication of what limitations and assumptions apply.

[mending3]

this is valid on Spring Boot 2.4.2

[Hermann Steidel]

This is the simplest answer; works for me on Spring Boot 2.6.0 on a @RestController.

[MarkAddison]

I believe that should be OR as opposed to AND (if paraMap is null the get will produce NPE ` if(paramMap == null || paramMap.get("password") == null) { throw new IllegalArgumentException("Password not provided"); } `