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The JSP Files (part 4): The Red Pill
Find out JSP can be used to process form data, and learn about the Request object.

| The Last Action Hero |

HTML forms are typically used to obtain information from visitors to a Web site - things like their name, mailing address, phone number, and the like - and this information is then processed in a variety of different ways. Some sites store it in a database; others email it to the webmaster; and still other simply redirect it to the trash basket. By using JSP to process a form, you can write simple code snippets that accomplish all of these actions.

Let's begin with a simple example.


<html>

<head>
<basefont face="Arial">
</head>

<body>

<center>
<form method="GET" action="matrix.jsp">
<table cellspacing="5" cellpadding="5" border="0">

<tr>
<td>
<font size="-1">Name, rank and serial, number, soldier!</font>
</td>
<td align="left">
<input type="text" name="name" size="10">
</td>
</tr>


<tr>
<td colspan="2" align="center">
<input type="submit">
</td>
</tr>

</table>
</form>

</center>
</body>

</html>


The most critical line in this entire page is the <form> tag

<form method="GET" action="matrix.jsp">

...

</form>


As you probably already know, the ACTION attribute of the <FORM> tag specifies the name of the server-side script - "matrix.jsp" in this case - that will process the information entered into the form, while the METHOD attribute specifies the manner in which the information will be passed.


How to do Everything with PHP & MySQL
How to do Everything with PHP & MySQL, the best-selling book by Melonfire, explains how to take full advantage of PHP's built-in support for MySQL and link the results of database queries to Web pages. You'll get full details on PHP programming and MySQL database development, and then you'll learn to use these two cutting-edge technologies together. Easy-to-follow sample applications include a PHP online shopping cart, a MySQL order tracking system, and a PHP/MySQL news publishing system.

Read more, or grab your copy now!


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