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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.


<basefont face="Arial">


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

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

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




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

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



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.

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