“The request sent by the client was syntactically incorrect.” — bad Content-Type
问题 While sending some test requests to a JAX-RS REST server, I got back a 400 - Bad Request The request sent by the client was syntactically incorrect. The request was PUT http://localhost:8080/some/url Content-Type: text-plain foo 回答1: Content-Type: text-plain is a typo and a bad MIME type. It should be Content-type: text/plain This was a bit of a head-scratcher for a while. 来源: https://stackoverflow.com/questions/27929825/the-request-sent-by-the-client-was-syntactically-incorrect-bad-content