📄 simplecapchaexample.jsp
字号:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<HTML>
<HEAD>
<%@ page
language="java"
contentType="text/html; charset=ISO-8859-1"
%>
<META http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<META name="GENERATOR" content="IBM WebSphere Studio">
<TITLE>SimpleCapchaExample.jsp</TITLE>
</HEAD>
<BODY>
<br><br><br><br>
<%
String c= (String)session.getAttribute(nl.captcha.servlet.Constants.SIMPLE_CAPCHA_SESSION_KEY) ;
String parm = (String) request.getParameter("captchafield");
out.println(parm + " ? " + c + ":");
if (c != null && parm != null) {
if (c.equals(parm)) {
out.println("<b>true</b>");
}else {
out.println("<b>false</b>");
}
}
%>
<br>
Any improvements are welcome at: <a href="mailto:testvoogd@hotmail.com?subject=captcha&data=test">testvoogd@hotmail.com</a><br>
<br>
<table>
<tr>
<td><img src="Captcha.jpg">
</td>
<td valign="top">
<form>
<br>sec code:<input type="text" name="captchafield"><br>
<INPUT type="submit" name="submit">
</form>
</td>
</tr>
</table>
</BODY>
</HTML>
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