Introduction of ASP Objects

ASP Tutorials - Herong's Tutorial Examples

Dr. Herong Yang, Version 5.00

ASP Tutorials - Herong's Tutorial Examples

∟Introduction of ASP Objects

This section introduces ASP built-in run-time objects - 5 run-time objects are provided by the ASP programming interface: Request, Response, Server, Application, and Session.

ASP enabled Web server provides a number of built-in run-time objects as part of the server side scripting environment:

Request: An object holding information the client sends to the server as an HTTP request.
Response: An object holding information the server sends to the client as an HTTP response.
Server: An object holding information common to running virtual directories.
Application: An object holding information common to all running HTTP sessions under a single virtual Web directory.
Session: An object representing a sequence of HTTP requests and responses from one client system.

The following diagram illustrates the relations among the ASP objects:

Server
 |- Application X
 |   |- Session A            Client A
 |   |   |- Request #1  <---  |
 |   |   |- Response #1 --->  |
 |   |   |- Request #2  <---  |
 |   |   |- Response #2 --->  |
 |   |   |- ......            |
 |   |
 |   |- Session B            Client B
 |   |   |- Request #1  <---  |
 |   |   |- Response #1 --->  |
 |   |   |- Request #2  <---  |
 |   |   |- Response #2 --->  |
 |   |   |- ......            |
 |   |- ......
 |
 |- Application Y
 |- ......

Last update: 2002.

Table of Contents

About This Book

ASP (Active Server Pages) Introduction

IIS (Internet Information Services) 5.0

MS Script Debugger

VBScript Language

►ASP Built-in Run-time Objects

►Introduction of ASP Objects

"request" Object - Receiving Data from Client

"response" Object - Sending Data to Client

"server" Object - Sharing Data across Applications