Introduction to ASP Web site development

In the beginning of the design of an ASP site, faced with a lot of problems, in the end to how to start to make the site design fast, good, and debugging, change, transplant and convenient? Following the design of the message book as an example, talk about the design of the site.

(i) the function of the site

"Maito", first write the function of the site, for the future work has a lot of help. Now to design a message book, the function is as follows:

1, single user version. Only one administrator, everyone can leave a message, you can search the message

2, record the ip,qq of each message, avatar, name, homepage, email, message time, message content;

3, have the administrator reply function. If you have already replied, you can also change the contents of the reply. Record the time of reply;

4, record the location of the homepage, in order to quickly return to the home page.

5, custom headers and footers. Displays the specific information.

6. Save data to an Access database

7, management functions: admin login/reply/delete/change admin password/change the number of messages displayed/change the home page

(ii) Site database

General ASP site to use the database, the first design database, in use will not be for a field to query or change the design of the database. Especially for large Web sites, good database design can affect the entire site's operation. Now let's design the database of the message book:

1, database name: Lyb.mdb

2, table: A total of two tables

Table One: admin

Field name	Type	Length	Other	Description
Admin_user	Text	15	Null value/PRIMARY key not allowed	Administrator user Name
Admin_pass	Text	15	Null value not allowed	Administrator password
Admin_http	Text	50	Can be a null value	Home Address
Admin_perpage	Digital/integral type		Decimal number is 0

Table II: Main

Field name	Type	Length	Other	Description
user_id	Automatic numbering
User_name	Text	15	is not empty	Name
User_image	Text	30	is not empty	Avatar filename
User_ip	Text	15	is not empty	IP Address
User_oicq	Text	10	Can be empty	QQ number
User_http	Text	50	Can be empty	Home
User_email	Text	50	Can be empty	Email
User_time	Date	Long Date		Message time
User_ly	Text	255	is not empty	Message content
User_replay	Yes/No			Whether to reply
User_rply	Text	255	Can be empty	Reply content
User_rptime	Date		Long Date	Reply time

Message the database is relatively simple, if it is a large site, in the database design after repeated inspection. All field names are best to use the naming standard, after the database design is completed, it is best to print out a list like the above to facilitate the use.
(iii) document design of the site

The design of a file is primarily about how many files are designed, what each file contains, and how it is related. Take the message as an example, the document is designed as follows:

1, inc.asp related functions and constants, including open database functions, open Table functions, word processing functions

2, top.htm page header information

3, bottom.htm footer information

4, index.asp Guestbook this homepage. including display message, admin login, modify parameters, reply message. Quoting inc.asp;

5, main.css css file;

6, tou.htm avatar list file;

7, image folder, save Avatar and other pictures;

(iv) page design of the site

Page design is mainly designed to design the style and layout of the page. This part of the content is more, usually first positioning the entire page style, and then design all the illustrations and Flash, and then design CSS, and finally design each page. For pages with duplicate content, first design a single content. The general design of Index.asp is listed here as follows:

' Reference inc.asp
<%
' Processing parameters
' Message subroutine
' Login subroutine
' Reply subroutine
' Remove sub-program
' Modify the Parameter subroutine
' Exit Login subroutine
%>



Message Book

' Reference top.htm
' Show the Message form
' Show Search Form
' Show Message Records
' Reference bottom.htm

of course, in the page design phase, and do not write subroutines, as long as the display of the parts to do the right

(v) station page code design

The main is to complete the design of ASP code. Here just talk about how to make the site modifiable and portable to strengthen. There is only one point: multiple components or functions, of course, if you write the class is better. For small sites, do not want to go to each page of a subroutine to use set Conn=server.createobject ("Adodb.connection"), but to write it as a function or subroutine, placed in the page, such as:

<%
Databasename= "Lyb.mdb"
Uid= ""
Pid= ""
Sub Opendb (Connect)
Set Connect=server. CreateObject ("Adodb.connection")
Connect. connectionstring= "Driver={microsoft Access DRIVER (*.mdb)}; Dbq= "&_
Server. MapPath (databasename) & "uid=" &uid& ";p id=" &pid
Connect. Open strconn
End Sub
%>

In this way, when you change the database name or username and password, it is convenient to change. After a period of accumulation, you will have a lot of such functions or subroutines, or classes, and then do similar sites, as long as the relevant to put in a file in a reference to the good.