The format type of the media application beginning:
application / XHTML + XML: XHTML format
application / xml: XML data format
application / atom + xml: Atom XML syndication format
application / json: JSON data format
application / pdf: pdf format
application / msword: Word document format
application / octet-stream: a binary stream of data (such as the common file download)
file application / X-WWW-form-urlencoded: <form encType = ""> the default encType, form form data is encoded as a key / value transmission format to the server (the default format of the data submission form)
text / html: HTML format
text / plain: plain text format
text / xml: XML format
image / gif: gif image format
image / jpeg: jpg image format
image / png: png image format
Original: https: //blog.csdn.net/chao88552828/article/details/78830971