问题
I am trying to carry JSON data in an HTTP GET request message, but my Spring MVC server can't seem to retrieve the JSON data from the GET request body.
回答1:
HTTP's GET method does not include a request body as part of the spec. Spring MVC respects the HTTP specs. Specifically, servers are allowed to discard the body. The request URI should contain everything needed to formulate the response.
If you need a request body, change the request type to POST, which does include the request body.
来源：https://stackoverflow.com/questions/34956899/does-spring-requestbody-support-the-get-method