Spring Web MVC: no request body possible for HTTP DELETE anymore
I have a question for the developers of Spring Web MVC.
In a nutshell: previously it was possible to send a request body in an HTTP DELETE message, but now it is not possible anymore. Why?
In detail:
We are using spring-webmvc-4.2.4.RELEASE .
@RestController
public class Controller {
@RequestMapping(value = "/{pathVariable}/deleteAnything", method = RequestMethod.DELETE)
public ResponseEntity<?> deleteAnything(@PathVariable String pathVariable,
@Valid @RequestBody Set<Pojo> pojoSet) {
...
We send
DELETE /anything/deleteAnything HTTP/1.1
Content-Type: application/json
Host: example.com
[ {
"any field" : "Any value"
} ]
and get the exception
m.m.a.RequestResponseBodyMethodProcessor : Read [java.util.Set<packagename.Pojo>] as "application/json;charset=UTF-8" with [org.springframework.http.converter.json.MappingJackson2HttpMessageConverter@333825a3]
.w.s.m.m.a.ServletInvocableHandlerMethod : Error resolving argument [1] [type=java.util.Set]
HandlerMethod details:
Controller [packagename.Controller]
Method [public org.springframework.http.ResponseEntity<?> packagename.Controller.deleteAnything(java.lang.String,java.util.Set<packagename.Pojo>)]
org.springframework.http.converter.HttpMessageNotReadableException: Required request body is missing: public org.springframework.http.ResponseEntity<?> packagename.Controller.deleteAnything(java.lang.String,java.util.Set<packagename.Pojo>)
at org.springframework.web.servlet.mvc.method.annotation.RequestResponseBodyMethodProcessor.readWithMessageConverters(RequestResponseBodyMethodProcessor.java:151)
at org.springframework.web.servlet.mvc.method.annotation.RequestResponseBodyMethodProcessor.resolveArgument(RequestResponseBodyMethodProcessor.java:125)
...
It seems that the request body has been removed.
If we use HTTP POST instead of HTTP DELETE everywhere, it works fine.
Previously it worked fine (sorry that I cannot specify previously because our dependencies are very complicated. If it helps you, I can post an old build.gradle ).
Why is it not possible anymore?
You probably should redesign your API, as payloads within DELETE requests should be ignored.
From http://tools.ietf.org/html/rfc7231#section-4.3.5:
A payload within a DELETE request message has no defined semantics.
From https://www.w3.org/Protocols/rfc2616/rfc2616-sec4.html#sec4.3:
If the request method does not include defined semantics for an entity-body, then the message-body SHOULD be ignored when handling the request.
It seems to be a problem with zuul. Without zuul it works. Spring has nothing to do with it.
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