JSTL compare string

•

What is DaniWeb IT Discussion Community?

You're currently browsing the JSP section within the Web Development category of DaniWeb, a massive community of 402,750 software developers, web developers, Internet marketers, and tech gurus who are all enthusiastic about making contacts, networking, and learning from each other. In fact, there are 2,457 IT professionals currently interacting right now! Registration is free, only takes a minute and lets you enjoy all of the interactive features of the site.

Join our community!

Please support our JSP advertiser: Lunarpages JSP Web Hosting

Thread Tools Display Modes

Views: 29082 | Replies: 2 | Solved

•

Join Date: Aug 2005

Posts: 1

Reputation: hellofriend is an unknown quantity at this point

Rep Power: 0

Solved Threads: 0

hellofriend hellofriend is offline

Offline

Newbie Poster

JSTL compare string

Aug 26th, 2005

hi, :p

i am trying to achieve a registration page in JSP. i am using tag library to do this.

c tag library and Sql tag library.

Help with Code Tags

(Toggle Plain Text)





<%@ taglib uri="http://java.sun.com/jsp/jstl/sql" prefix="sql" %>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>

<c:if test="${param.submitted}">
	<c:if test="${empty param.name}" var="noname" />
	<c:if test="${empty param.pw}" var="nopw" />
	<c:if test="${empty param.cpw}" var="nocpw" />
<c:if
test="${not (noname or nopw or nocpw or requestScope.takenName)}">


<c:set value="${param.name}" var="name" scope="request" />
<c:set value="${param.pw}" var="pw" scope="request" />
<c:set value="${param.cpw}" var="cpw" scope="request" />




<jsp:forward page="postregister.jsp"/>



	</c:if>
		</c:if>

<html>
<head> 
</head>
<body bgcolor="CFECEC" >



<form method="post" name="frmRegister">
<input type="hidden" name="submitted" value="true"/>






<script type="text/javascript">

<!--

	function add_onclick() {
		
		var TRUE = new Boolean("True")
		var FALSE = new Boolean("False")
		
		blnError = FALSE
		strError = "The following problems were found in your registration form: \n\n"
		
		
			
		if (frmRegister.name.value == "")
			{
				blnError = TRUE
				strError = strError + " - You must provide a Login Name\n"
			};
			
		if (frmRegister.pw.value == "")
			{
				blnError = TRUE
				strError = strError + " - You must provide a Password\n"
			};
		if (frmRegister.cpw.value == "")
			{
				blnError = TRUE
				strError = strError + " - You must confirm your Password\n"
			};
			
			
		if (frmRegister.pw.value != frmRegister.cpw.value)
			{
				blnError = TRUE
				strError = strError + " - Your Password does not match\n"
			};
			
		if (blnError == TRUE)
			{
				strError = strError + "\nPlease correct these mistakes and try again."
				alert(strError)				
			}
		else
			{
				frmRegister.submit()
			};				
		
	}

	//-->
	</SCRIPT>




<p align="left"><b> Register <hr> </p>
<p align="center"><b>Please complete the following registration form</b>  <hr><br><br>



<img src="dmu.jpg" alt="DMU University" align="left">
<img src="dmu.jpg" alt="DMU University" align="right">



<table BORDER="0" ALIGN="CENTER" VALIGN="TOP" CELLPADDING=2 CELLSPACING=0>
<tr> 
<td><Strong>Username</strong></td>
<td><input type="text" name="name" value="<c:out value="${param.name}" />"
/>

</td>
</tr>


<tr> 
<td><Strong>Password</strong></td>
<td> <input type="password" name="pw"  value="<c:out value="${param.pw}"/>"
/>




<tr> 
<td><Strong>Confirm password</strong></td>
<td> <input type="password" name="cpw"  value="<c:out value="${param.cpw}"/>"
/>

<tr><td>&nbsp;</td>
<td><input type="submit" value="register"LANGUAGE=javascript onclick="return add_onclick()" />
</td>
</tr>





</table>
<img src="dmu.jpg" alt="DMU University" align="left">
<img src="dmu.jpg" alt="DMU University" align="right">



</form>
</body>
</html>





<%@ taglib uri="http://java.sun.com/jsp/jstl/sql" prefix="sql" %>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>

<c:if test="${param.submitted}">
	<c:if test="${empty param.name}" var="noname" />
	<c:if test="${empty param.pw}" var="nopw" />
	<c:if test="${empty param.cpw}" var="nocpw" />
<c:if
test="${not (noname or nopw or nocpw or requestScope.takenName)}">


<c:set value="${param.name}" var="name" scope="request" />
<c:set value="${param.pw}" var="pw" scope="request" />
<c:set value="${param.cpw}" var="cpw" scope="request" />




<jsp:forward page="postregister.jsp"/>



	</c:if>
		</c:if>

<html>
<head> 
</head>
<body bgcolor="CFECEC" >



<form method="post" name="frmRegister">
<input type="hidden" name="submitted" value="true"/>






<script type="text/javascript">

<!--

	function add_onclick() {
		
		var TRUE = new Boolean("True")
		var FALSE = new Boolean("False")
		
		blnError = FALSE
		strError = "The following problems were found in your registration form: \n\n"
		
		
			
		if (frmRegister.name.value == "")
			{
				blnError = TRUE
				strError = strError + " - You must provide a Login Name\n"
			};
			
		if (frmRegister.pw.value == "")
			{
				blnError = TRUE
				strError = strError + " - You must provide a Password\n"
			};
		if (frmRegister.cpw.value == "")
			{
				blnError = TRUE
				strError = strError + " - You must confirm your Password\n"
			};
			
			
		if (frmRegister.pw.value != frmRegister.cpw.value)
			{
				blnError = TRUE
				strError = strError + " - Your Password does not match\n"
			};
			
		if (blnError == TRUE)
			{
				strError = strError + "\nPlease correct these mistakes and try again."
				alert(strError)				
			}
		else
			{
				frmRegister.submit()
			};				
		
	}

	//-->
	</SCRIPT>




<p align="left"><b> Register <hr> </p>
<p align="center"><b>Please complete the following registration form</b>  <hr><br><br>



<img src="dmu.jpg" alt="DMU University" align="left">
<img src="dmu.jpg" alt="DMU University" align="right">



<table BORDER="0" ALIGN="CENTER" VALIGN="TOP" CELLPADDING=2 CELLSPACING=0>
<tr> 
<td><Strong>Username</strong></td>
<td><input type="text" name="name" value="<c:out value="${param.name}" />"
/>

</td>
</tr>


<tr> 
<td><Strong>Password</strong></td>
<td> <input type="password" name="pw"  value="<c:out value="${param.pw}"/>"
/>




<tr> 
<td><Strong>Confirm password</strong></td>
<td> <input type="password" name="cpw"  value="<c:out value="${param.cpw}"/>"
/>

<tr><td>&nbsp;</td>
<td><input type="submit" value="register"LANGUAGE=javascript onclick="return add_onclick()" />
</td>
</tr>





</table>
<img src="dmu.jpg" alt="DMU University" align="left">
<img src="dmu.jpg" alt="DMU University" align="right">



</form>
</body>
</html>

code describe dabove is register.jsp which send info to postregister.jsp. which described below

Help with Code Tags

(Toggle Plain Text)

<%@ taglib uri="http://java.sun.com/jsp/jstl/sql" prefix="sql" %>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>




<c:choose>

<c:when test ="${param.pw == param.cpw}">






<sql:setDataSource
	dataSource= "jdbc/ma123"
	scope="session"/>




<sql:transaction isolation="serializable">
	<sql:query var="result" >
    		select username from rptable where username=?
               <sql:param value="${requestScope.name}" />



		
	</sql:query>



	<sql:update>
		insert into rptable(username,password) VALUES (?,?);
		<sql:param value="${requestScope.name}" />
			<sql:param value="${requestScope.pw}" />
				
	</sql:update>

</sql:transaction>

</c:when>
<c:otherwise>
<c:redirect url="register.jsp" >
</c:redirect>
</c:otherwise>
</c:choose>
<%----
<c:set var="user" scope="session" value="${requestScope.name}" />
---%>
<jsp:forward page="login.jsp"/>





<%----

it trasfering same data 2 times in database.

---%>

it is transfering same data 2 times. so i do not understand what to do to compare password and confirm password.

any help would be greateful!!!!!!

•

Join Date: Aug 2008

Posts: 1

Reputation: fbeli is an unknown quantity at this point

Rep Power: 0

Solved Threads: 1

fbeli

Offline

Newbie Poster

Re: JSTL compare string

10 Days Ago

try put after onClick parans in input submit the value return false; <input onClick="test(); return false"/>

•

Join Date: Dec 2004

Location: London or Slovakia

Posts: 2,239

Reputation: peter_budo is a jewel in the rough

Rep Power: 10

Solved Threads: 270

peter_budo peter_budo is online now

Online

Code tags enforcer

Re: JSTL compare string

10 Days Ago

Awn, I think he may already sorted or give up on this problem. Post is 3 year OLD!!!!!!!!

Learn to see in another's calamity the ills which you should avoid.
Publilius Syrus
(~100 BC)
If we helped you to solve your problem, answered your question please mark your post as SOLVED.