The establishment of Web applications using Javascript
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With the Internet / Intranet applications universal, and more and more users in the design used on Client / Server architecture, and to establish their own Internet / Intranet applications. Client responsible for the request to the Web server, and from the Web server is responsible for receiving and interpreting show hypertext. To generate dynamic, interactive Web pages, it must pass common gateway interface (CGI), the proceedings may be CGI Perl, C, JavaScript, preparation, the current popular method is to use Java or JavaScript.
I. Introduction JavaScript JavaScript is a scripting language, because it benefits applicable to client applications, but also for the server-side application development. For example, in the client it can be used to write Web browser programs, and in the server, it can be used to deal with a Web browser to prepare the information submitted, and the corresponding update the browser displays the Web server process. Although JavaScript can meet some server side programming needs, but also need some server side procedures to support more advanced Web applications. For example, access the database or special treatment. To this end, Netscape, a company specialising in the development of integrated JavaScript server environment Livewire.
Second, Livewire brief Livewire is a WEB application development environment, Windows NT4.0 system installed Netscape Fast track could use it. Livewire used to develop browser and the Web server side applications. Thus the server may need to replace the original CGI program. Livewire Netscape and Netscape server can be downloaded from the Web site http://home.Netscape.com (30-day free trial).
Third, the server side JavaScript programming the server side JavaScript procedure was developed by Livewire, the specific programming steps are as follows:
1, with the client side JavaScript and html server side JavaScript embedded in the source file to create.
2, the compiler will use Livewire source files compiled. WEB document.
JavaScript in the server side and client side JavaScript distinction, provides four kinds of object, request, client, project and the server.
Below, we will be able to develop some procedure, first of all, a simple example to highlight the development process:
Students. Htm providing students with the registration form to enable students to complete.
Process.htm handle students with the students. Htm registration form input data, the client and server side JavaScript together that students registration forms, and submitted to the display.htm.
Display.htm that students. Process.htm htm, and the data collected, both on the client properties.
Record.htm students registration forms will be included in the document student.txt.
Procedures attached:
Students. Htm
<html>
<head>
<Meta http-equiv = "Content-Type"
Content = "text / html; gb_2312-80 charset =">
<meta Name="GENERATOR" content="Microsoft FrontPage Express 2.0">
<title> Pupils registered </ title>
</ Head>
<p Align="center"> <font size="5"> Welcome to computer center </ font> </ p>
<form Action="process.htm">
</ Form>
<p> <font Color="#00FF40" size="4"> type of study: </ font> </ p>
<form Method="POST">
<p> <input Type="text" size="13" name="T1"> <input
Type = "submit" value = "Continue"> </ p>
</ Form>
</ Body>
</ Html>
Process.htm
<html>
<head>
<Meta http-equiv = "Content-Type"
Content = "text / html; gb_2312-80 charset =">
<title> </ Title>
</ Head>
<body Bgcolor="#808080">
<SERVER>
<p> Client.t1 = request.t1
Write ( "<script language="javaScript">")
Write ( "</ SCRIPT>")
</ SERVER>
</ Body>
</ Html>
</ Script> </ p>
<p Align="center"> <font color="#FFFF00" size="5"> pupils registered </ font> </ p>
<form Action="display.htm">
Name <input type = "text" size = "14" name = "Name">
Sex <input type = "text" size = "7" name = "Sex">
Date of birth <input type = "text" size = "30" name = "Birth">
Home address <input type = "text" size = "11" name = "Address">
Postcode <input type = "text" size = "11" name = "Zip">
Phone <input type = "text" size = "11" name = "Tel">
</ P>
</ Form>
</ Body>
</ Html>
Display.htm
<html>
<head>
<Meta http-equiv = "Content-Type"
Content = "text / html; gb_2312-80 charset =">
<meta Name="GENERATOR" content="Microsoft FrontPage Express 2.0">
<title> Client. </ Title>
</ Head>
<body Bgcolor="#FFFFFF">
<SERVER>
<p> Client.Name = request.Name
Client.Sex = request.Sex
Client.Birth = request.Birth
Client.Address = request.Address
Client.Zip = request.Zip
Client.Tel = request.Tel </ p>
<p> Write (client.Name "
")
Write (client.Birth "
")
Write (client.Address "
")
Write (client.Zip "
")
Write (client.Tel "
")
</ SERVER> </ p>
<form Action="finish.htm">
<p> <input Type="submit" value="继续"> </ p>
</ Form>
</ Body>
</ Html>
Record.htm
<html>
<head>
<Meta http-equiv = "Content-Type"
Content = "text / html; gb_2312-80 charset =">
<meta Name="GENERATOR" content="Microsoft FrontPage Express 2.0">
<title> F = </ title>
</ Head>
<body Bgcolor="#FFFFFF">
<SERVER>
<p> F = new file ( "student.txt")
F.open ( "a")
F.writeln (client.Name)
F.writeln (client.Sex)
F.writeln (client.Birth)
F.writeln (client.Address)
F.writeln (client.Zip)
F.writeln (client.Tel)
F.close () </ p>
</ SERVER> </ body>
</ Html>
Author: Li Bing Address: armed police in Xi'an Institute of Technology Center Address: 710086
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