Sending User Defined Input to a Web Server 

Sending User-Defined Input to a Web Server
  • As you know from the introductory piece, "Web Programming 101", web programming is a game of getting user input, processing that input, and returning a dynamic response. 
  • Thus, the first thing that you must learn how to do is get user input from a web browser to a web server. 
  • Fortunately the HTTP protocol provides two main ways to send information to a web server above and beyond the URL of a requested file. 
  • These two ways are the POST and GET methods. 
HTTP/1.0 also specifies a HEAD method that is used to transmit header information only. It is used primarily by indexing search robots and not web programmers 1 so we will not discuss it here. Similarly we will not discuss the PUT or the DELETE methods that are a part of the HTTP 1.1 specifications still in formulation.

Notes:

  • Spiders will also get whole pages, to index the content 
  • HTTP/1.0 is used by other software which does caching, e.g. browsers, may use HEAD to determine if update is needed. 
  • links checking software uses HEAD 

Additional Resources:

Pre-requisites
Table of Contents
The GET Method


Graphics & Media Lab. >> Библиотека | Курсы | Графикон

Hosted by Graphics & Media Lab
http://graphics.cs.msu.su
lab_logo
mailto: Laboratory