Asp.net-(2)-Web Design

WEB programming is a tag

One of the differences with CS development isThe client becomes a browser,

First, let's take a look at the overall structure of the web design.

 

Comparison with CS

This is not detailed here. We will discuss the specific chapters in the future.

Here is a brief description.

1. Different hardware environments:

2. Different security requirements

3. Different program Architectures

4. Different user interfaces

5. Different information flows

Basic working mode

 

Stateless editing mode

Disconnected connection

Based on the request/response mode (HTTP Protocol)

 

Proxy Server Concept

Each eight IP addresses is an IP address, which converts an invalid IP address into a valid IP address.

Protocols used in Transmission

 

HTTP protocol (based on request response)

The transmission protocol is UDP (User Datagram Protocol, connectionless)

HTTP is connection-oriented (connectionless = no connection or no connection)

 

Network Interface and HTTP service

Connect to the network through the Internet, transfer protocol/finally send to multiple servers through windo socket

Windows Socket: A unique connection between an IP address and a port

In this way, you can communicate

 

Dynamic Web Page

Clients and servers

ASP must be published on the server. It is set to IIS server. PS (usually 65535 ports,

Generally, ports later than are specified, and ports earlier than are fixed)

 

Example

Client script usage

The Call Sequence diagram is as follows:

The syntax structure is

<SCRIPT start and end

Language = is a language

 

Code segment in the middle

But the function code

 

The script language <scriptlanguage = "JavaScript"> funasb ASB () {If (form1.textfield. value = "") {window. Alert ("the user name cannot be blank! "); Form1.textfield. focus ();}} </SCRIPT> <title> untitled document </title> 


The above is the client dynamic web page
 

 

Static is also the basis of dynamic.
 
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Advantages of Asp.net






Supports strong languages
ASP code is separated from HTML code and server-side ASP code
No need to register Components
After one compilation, you do not need to compile
Code separation (Object-Oriented, inheritance, mechanism)
The above is the basic web design method. please correct me.