hide div tag in jsp page

Question

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Welcome</title>
<script type="text/javascript">
$(document).ready(function()
        {
            if()==null)
            {

            }
        }
);
</script>
</head>

<center>
    <%@ include file="Head.jsp" %>
</center>
<body>
<div id="tempDiv">
    <h1>Message : ${message}</h1>   
    <h1>Author : ${author}</h1>
</div>  
    <a href='<c:url value="/j_spring_security_logout" />' > Logout</a>
    <div align="center">
        <table class="table1">
            <tr>
                <td align="center" width="800" height="400"><font size="10">
                        Welcome </font></td>
            </tr>
        </table>

    </div>
</body>
</html>

How to hide div tag when $message value not come. i want to hide my div tag. in jsp page. when user click on home page. i tried here javascript code but did not get any answer to how to user jsp element in javascript. or any code which usefull to hide div tag in my case do suggest. thank u....

Answer 1

Try this

<c:if test="${empty message}">

</c:if>
<c:if test="${not empty message}">
<div id="tempDiv">
    <h1>Message : ${message}</h1>   
    <h1>Author : ${author}</h1>
</div>  
</c:if>

You need to check if the variable is empty and depending on that print out on the html page...hope it works

or another way

<c:choose>
    <c:when test="${empty message}">

    </c:when>
    <c:otherwise>
    <div id="tempDiv">
        <h1>Message : ${message}</h1>   
        <h1>Author : ${author}</h1>
    </div>  
    </c:otherwise>
</c:choose>

hide div tag in jsp page

Question

1 answers

solution1
1 2014-05-08 12:13:40

hide div tag in jsp page

Question

1 answers

solution1 1 2014-05-08 12:13:40

solution1
1 2014-05-08 12:13:40