JSP / JSTL :: Fingerprint Enrollment Web Application

Jan 17, 2013

I am trying to create a simple web application which will store fingerprint of a person in database. I have a U.Are.U 4500 fingerprint device from Digital Persona. My database is MS SQL Server 2008.

Basically the web app will consist of 2 JSPs. The first JSP AskUser.jsp will ask for a user_id and will have a button Next. A user will type in his/her user_id and then click Next button.

The second JSP EnrollUser.jsp will ask for user's fingerprint and will have a button Save. User will scan his fingerprint and then click Save button which will save the fingerprint in database.

The concern I have is regarding second JSP. How to wait until the user has scan his fingerprint? I mean how will the app know that scan is done? Also can I show the fingerprint on screen when user scan his fingerprint?

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I have created a simple applet application that is embedded in a HTML. When I did compiled it, I received an error of ClassNotFoundException. I'm using Jdeveloper11gR1. Please see screenshot.

This is my error :
 
java.lang.ClassNotFoundException: cams.gsis.applet.CAMSApplet
  at sun.plugin2.applet.Applet2ClassLoader.findClass(Unknown Source)
  at sun.plugin2.applet.Plugin2ClassLoader.loadClass0(Unknown Source)
  at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
 
[Code] ....

And this is my Error on java console.
 
basic: Added progress listener: sun.plugin.util.ProgressMonitorAdapter@c5dde6
security: Expected Main URL: http://localhost:7101/CAMSv6-CAMSv6-context-root/cams/gsis/applet/CAMSApplet.class
network: Cache entry not found [url: http://localhost:7101/CAMSv6-CAMSv6-context-root/cams/gsis/applet/CAMSApplet.class, version: null]

[Code] .....

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May 1, 2014

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Mar 11, 2014

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1.Created a dynamic web project JWStartProject in eclipse

2.Create a HelloWorld.java class under default package.

import javax.swing.*;
public class HelloWorld extends JFrame {
private static final long serialVersionUID = 4968624166243565348L;
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this.setLayout(null);

[Code] ....

Now I exported this project as JWStartProject.war contains following code.

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Deployed this war file under the server and started.

I have added MIME types also.

I am unable to launch the application. I am getting 404 errors. May I know where I went wrong?

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<tr>
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</tr>
</c:forEach>

Below is one row with radio button

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ABC PQR Test123 03/12/2014 smj

I have a view button also to select above radio button. When I select that I need all above values to be set in request.

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May 25, 2014

translate this part to jstl and el?

<%
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if(i==0){
%>
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Sep 9, 2014

I am looking at JSP page, which has code line as follows

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This taglib will have to be installed on local environment. How is it referred in jsp ? I dont see any code in jsp, which refers to the location of JSTL. So how does jsp invoke these tags ? Is it through classpath ?If its so , how is classpath set for JSTL ? Is it just as classpath is set for java ?

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Jun 21, 2006

i am doing a code using JSTL to fire a query. everything come fine except the resule is not sorted as desired. i am putting the code below--

String sort_order=(String)request.getAttribute("sort_order");
request.setAttribute("sort_order",sort_order);
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now the resule is always sorted by USER_ID. if i want to sort it using USER_NAME i pass parameter from controller to this page in sort_oredr variable which comes fine but the result doesn't sort by name, only by id. if i hardcode USER_NAME in query then the result is as desired.

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%>
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<%

[Code]....

Here start is the variable whose value will vary after every time i visit this function.So how would i be able to use above query.

P.S. i was using scriplet before and i was able to deal these issues with scriplet easily.

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[Code] ....

I'm using the following code in a jsp:

<c:import var="bookInfo" url="/WEB-INF/books.xml" />

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However, for some reason it doesn't appear to be importing the data into the bookInfo variable.

I noticed this problem because when I try to parse it via:

<x:parse xml="${bookInfo}" var="output"/>

I get org.xml.sax.SAXParseException: Premature end of file.

When I try to display the data in the variable either by:

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...or by means of a scriptlet (which I realize is not a best practice):

<%
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%>

...I get nothing.

BTW when I do:

<c:import var="data" url="http://www.tutorialspoint.com"/>
<c:out value="${data}"/>

that works fine!

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Mar 14, 2014

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<OPTION value="" ></OPTION>
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I wanted to do the following in EL

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Feb 15, 2013

Why will this NOT validate correctly in my IF Statement? Basically, a user chooses an option from the drop down list. The value is passed to t.jsp (itself) and if the option "All" is chosen, then it does something. If any of the years are chosen, then it does something else.

t.jsp (simplified version of what I want)

<%@ page import="java.sql.*" %>
<%@ page import="java.io.*" %>
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[Code] ....

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I have a variable <c:set var="var1" value = "myvalue" /> , I want to pass var1 as <%= new customclass().method1(var1) %>.what is the syntax to pass this value.

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I'm trying to write a condition to jstl if tag,

<c:forEach var="ledg" items="user_ledgers">
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I found this error while runtime.

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String concatenation
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Using custom tag
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Jun 23, 2014

I am creating a webapp project , in which i have loaded my JSP page having JSTL tags in a DIV tag successfully but when user clicks on a radio button a jquery fires which loads that perticular div tag , and the html content in that div tag is then loaded again but not the JSTL content..

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JSP :: Binary Tree - Loops In JSTL

Jan 31, 2014

I create a binary tree and now I would like to display the result in my jsp with conditions.

Each node has 4 elements (id, question, answer, and leftnode rightnode)

If the user clicks "Yes", the program goes to the left of the tree and if he answers "no" to the right of the tree.

For example, the initial question is "you're a man?" If he answers "yes" we will go to the left and page view "you're a singer?" If he answers "no" page displays "you're French? ".

In java, it would

cursor [i]. GetQuestion ()

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Then

cursor [i] getQuestion. GetLeftnode ()
For yes and
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Until the, everything works normally, but when I want to loop until there is no longer any issue by

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<c:set var="cursor" value="${nodes}" scope="session"></c:set>
<c:set var="i" value="0" scope="session"></c:set>
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[Code] ....

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When using trim-directive-whitespaces in a Tomcat 7 application this expression also get trimmed:
 
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instead of
 
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On the other hand, when I first assign the expression to a varibale it's fine:

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 results in the desired HTML
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Is this the intention of the trim whitespace directive or does this look like a bug?

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