ElasticSearch似乎使用了这个: https://www.elastic.co/guide/en/elasticsearch/reference/5.x/search-request-scroll.html#_clear_scroll_api

也就是说妮蒂支持这个。

就像评论中提到的那样，情况可能不再是这样了

有些版本的Tomcat和Jetty似乎会忽略存在的实体体。如果你想要收到它，那就麻烦了。

在我看来，RFC 2616并没有规定这一点。

从第4.3节开始:

The presence of a message-body in a request is signaled by the inclusion of a Content-Length or Transfer-Encoding header field in the request's message-headers. A message-body MUST NOT be included in a request if the specification of the request method (section 5.1.1) does not allow sending an entity-body in requests. A server SHOULD read and forward a message-body on any request; if the request method does not include defined semantics for an entity-body, then the message-body SHOULD be ignored when handling the request.

9.7节:

The DELETE method requests that the origin server delete the resource identified by the Request-URI. This method MAY be overridden by human intervention (or other means) on the origin server. The client cannot be guaranteed that the operation has been carried out, even if the status code returned from the origin server indicates that the action has been completed successfully. However, the server SHOULD NOT indicate success unless, at the time the response is given, it intends to delete the resource or move it to an inaccessible location. A successful response SHOULD be 200 (OK) if the response includes an entity describing the status, 202 (Accepted) if the action has not yet been enacted, or 204 (No Content) if the action has been enacted but the response does not include an entity. If the request passes through a cache and the Request-URI identifies one or more currently cached entities, those entries SHOULD be treated as stale. Responses to this method are not cacheable.c

因此，它没有显式地允许或禁止，并且代理可能会删除消息体(尽管它应该读取并转发它)。

ElasticSearch似乎使用了这个: https://www.elastic.co/guide/en/elasticsearch/reference/5.x/search-request-scroll.html#_clear_scroll_api

也就是说妮蒂支持这个。

就像评论中提到的那样，情况可能不再是这样了

2014年更新的HTTP 1.1规范(RFC 7231)明确地允许在DELETE请求中使用实体:

DELETE请求消息中的有效负载没有定义的语义;在DELETE请求上发送有效负载主体可能会导致某些现有实现拒绝该请求。

只是一个提示，如果你在你的DELETE请求中提供了一个主体，并且使用了谷歌云HTTPS负载均衡器，它将拒绝你的请求，错误为400。我的头撞到墙上，然后发现谷歌，不管出于什么原因，认为一个带有主体的DELETE请求是一个畸形的请求。