Optimistic about your portal-data transmission on the client-Appendix-http information header description
Appendix, the http header information of the REQUEST in JAVA, which may be useful for reference.
System. out. println ("Protocol:" + request. getProtocol (); System. out. println ("Scheme:" + request. getScheme (); System. out. println ("Server Name:" + request. getServerName (); // obtain the server name System. out. println ("Server Port:" + request. getServerPort (); // obtain the server port number System. out. println ("rotocol:" + request. getProtocol (); System. out. println ("Server Info:" + getServletConfig (). getServletContext (). getServerInfo (); System. out. println ("Remote Addr:" + request. getRemoteAddr ();/obtain the Client IP address System. out. println ("Remote Host:" + request. getRemoteHost (); // obtain the name of the client computer. If the name fails, the IP address System of the client computer is returned. out. println ("Character Encoding:" + request. getCharacterEncoding (); System. out. println ("Content Length:" + request. getContentLength (); System. out. println ("Content Type:" + request. getContentType (); System. out. println ("Auth Type:" + request. getAuthType (); System. out. println ("HTTP Method:" + request. getMethod (); // The methods used to obtain data transmitted from the client to the server include get, post, put, and other types of System. out. println ("Path Info:" + request. getPathInfo (); System. out. println ("Path Trans:" + request. getPathTranslated (); System. out. println ("Query String:" + request. getQueryString (); System. out. println ("Remote User:" + request. getRemoteUser (); System. out. println ("Session Id:" + request. getRequestedSessionId (); System. out. println ("Request URI:" + request. getRequestURI (); // obtain the client address of the request string System. out. println ("Servlet Path:" + request. getServletPath (); // obtain the file path of the script file requested by the Client: System. out. println (request. getHeaderNames (); // returns the names of all request headers. The result set is an instance of the enumeration (enumeration) class. out. println ("Accept:" + request. getHeader ("Accept"); System. out. println ("Host:" + request. getHeader ("Host"); System. out. println ("Referer:" + request. getHeader ("Referer"); System. out. println ("Accept-Language:" + request. getHeader ("Accept-Language"); System. out. println ("Accept-Encoding:" + request. getHeader ("Accept-Encoding"); System. out. println ("User-Agent:" + request. getHeader ("User-Agent"); // return the version number and type of the client browser System. out. println ("Connection:" + request. getHeader ("Connection"); System. out. println ("Cookie:" + request. getHeader ("Cookie"); System. out. println ("Created:" + session. getCreationTime (); System. out. println ("LastAccessed:" + session. getLastAccessedTime ());