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Tip of the Day
Language: HTML
Expertise: Advanced
Aug 15, 2003



Building the Right Environment to Support AI, Machine Learning and Deep Learning

Avoid Sending Truncated Data

There is a common and tricky problem that arises when you're sending data from an HTML form to the server—the amount of data you can send depends on which method you use to send the data. For example, suppose you have a form containing a large select list:

<form method="get" action="serverPage.jsp">
<select name="sel1" size="50" multiple>
<option value="val1"> Value1 </option>
<option value="val2"> Value2 </option>
<option value="val3"> Value3 </option>
<option value="val4"> Value4 </option>
<option value="val2000"> Value2000 </option>

If a user selects all the values in the select list and then submits the form, the server will only receive part of the data—in other words, it will receive truncated data. The problem occurs the form is using the "GET" method. Most browsers can send only about 2048 bytes (2kb) of data via the GET method. To ensure that the server receives all the data, you must alter the form so it uses the "POST" method instead, for example:

 <form method="post" action="serverPage.jsp"> 
Hemasa Rangrej
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