Common request headers for HTTP protocols

Accept (*): text/html,image/*: Browser tells the server which data types are supported
MIME type: Large type/small type
File type: JPG-image/jpg
HTML file: HTML-text/html
CSS files: css->-text/css
TXT file: txt-> Text/plain
......
View Tomcat/conf/web.xml

Accept-charset: iso-8859-1: Tell the server that the browser supports encoding

accept-encoding (*):Gzip,compress: Tell the Server Browser which Web page compression format is supported
Common compression formats: gzip
The server first compresses the data and then compresses it to the browser (in order to save bandwidth)

Accept-language:EN-US,ZH-CN: Tell the server Browser the language priority (which languages are supported)

HOST:WWW.IT315.ORG:80: Access to hosts and ports

if-modified-since (*): Tue, Jul 18:23:51 GMT: Tells the server that the last modification time of the browser cache file is now

Referer (*):Http://www.it315.org/index.jsp: Where does the current resource come from


Content-type (*): application/x-www-form-urlencoded Request Body Content type encoding
Enctype Property: Request body Content Type encoding
Default type: application/x-www-form-urlencoded non-file upload
Display effect: name=eric&password=123456

Other types: Multipart/form-data files when uploading
Display effect:
。。。。。。。


user-agent (*): mozilla/4.0 (compatible; MSIE 5.5; Windows NT 5.0): Browser type

Cookie:name=ericSession Management related

Connection:close/keep-alive Connection Status
Date:Tue, 18:23:51 GMT current request time

Common request headers for HTTP protocols