ASP
versus
WAP
Combined with rich dynamics
WML
Page, you can give
WAP
The phone brings a lot of interesting content. So how do you make both organic combinations to generate a dynamic web page? In this article, I want to introduce how to use it.
ASP
Develop a dynamic generation
WML
s application. For example, the e-banking of the mobile phone is now fired, so how do we build such an app? Here I don't want to discuss the establishment of the entire e-banking, because the content is too large, beyond the scope I can introduce, here I just want to introduce, how to use
ASP
Establish an app to check the user's balance of payment balance. Considering its security, we have to use
WTLS
However, this problem is more complicated, and only the opportunity will be discussed again. We have to put your energy in how to use
ASP
To realize the dynamic webpage.
Said so much nonsense, let's get started! Suppose the bank account information is saved
SQL
In the database, if you use the appropriate network connection, you can enter our system. In the example of this article, in order to simplify us to make the account information very small (in fact is not this): only account number; customer name, security password, account balance balance, in a table (
TBL_ACCOUNT_INFO
), There are four domains corresponding to
Accountno, Custname, Accountpin
with
Accountbal
.
Below, I want to talk about programming ideas: First, users enter our system interface, enter their account and security password (as shown
1
After verifying these login information, we allow users to log in to enter the system, we will give a welcome language and output the balance of payments on the username and account!
Figure 1
This is the general development idea, well, now we can program it according to this idea. I have a habit. When I write a dynamic program code, I first write the static code, and then try to write the dynamic code. This method will also be used in this article.
First, at the first part of the code, we will create a page to use to receive login information. (As shown)
1
)
Please pay attention to the following code, these code is the most basic
WML
Code:
<
% Response.contentType = "text / vnd.wap.wml"%
>
<
XML Version = "1.0" encoding = "GB2312"?
>
//
Pay attention to this sentence, if you want to display Chinese, you must join
Encoding = "GB2312"
<
! DOCTYPE WML PUBLIC "- // WAPFORUM / / DTD WML 1.1 // En" "http://www.wapforum.org/dtd/wml_1.1.xml"
>
<
WML
>
<
Card id = "Login" Title = "WAP
Internet banking
"
>
<
p
>
Welcome to
WAP
Internet banking
<
BR /
>
please enter account
:
<
Input name = "accountno" type = "text" maxlength = "6" />
Security Code
:
<
Input name = "accountpin" type = "password" maxlength = "4" /
>
<
Do Type = "accept" label = "check bal"
>
<
Go href = "checkbal.asp" method = "post"
>
<
Postfield name = "accountno" value = "$ accountno" /
>
<
Postfield Name = "Accountpin" value = "$ accountpin" /
>
<
/ Go
>
<
/ do
>
<
/ P
>
<
/ card
>
After receiving the user login information page, we must verify that the information fill the information is illegal. If the account is not full, the security password is not filled, these steps are generally carried out in the client, thus The process of processing the wireless communication coupled to minimize to mitigate communication interruptions caused by communication congestion. Because the mobile phone is different from ordinary
PC
Machine, its bandwidth is relatively small, slow connection.
Ok, the next step we have to truly join the database, we have to make a standard
SQL
Request a statement, and then the server will return a recordset, and our record set extract the information we need, and then display it in the corresponding domain in the next page. These are dynamic content: obtain request information from the user, then show them the dynamic information they want to get, so they do
"
Mobile phone information Personalization
"
. Please see the code:
<
Card id = "Login" Title = "WAP
Internet banking
"
>
<
p
>
<
% txtsql = "select * from tbl_account_info where accountno = '" Request.form ("Accountno") & "' and accountpin = '" Request.form ("Accountpin") & "'" SET RS = Conn.execute (txtsql) IF f. "invalid login" response.write "
<
Do Type = 'accept' label = 'retry'
>
"Response.write"
<
Go href = 'index.asp' /
>
"Response.write"
<
/ do
>
"Else Response.write"
Hello
, "& rs.fields (" CustName ") &"
Mr
"
<
BR /
>
"Response.write"
Your balance is ¥
"& rs.fields (" Accountbal ")%
>
After getting back information from the server, we display this information: as shown
2
Ok, a simple e-banking query system is written. From the above example we can see in the design
WAP
Pay attention to the following questions when pages:
1
To keep the content, short care. We must make simple and able to meet their requests quickly and can quickly meet their requests!
2
,use
ASP
Ability to complete the preparation
WML
Page, it
ASP
The prepared ordinary page is basically try, only some subtle changes, such as joining
WML
The tag of page recognition. You can also try to write some other dynamic content.
