Is your backend designed to receive HTTP request with JSON header ? If it only accepts form-data, you have your answer. ... <看更多>

Postman allows you to submit a form-data request where in one key you send a file and in the other key you ... ... <看更多>

Since the request sent from PostMan doesn't contain content type for JSON form data parameter, Jersey read it as String rather than a JSON ... ... <看更多>