Value have changed when pass value between 2 jsp pages

Question

I have 2 jsp page, i sent value from frist page to second page, but when i show value in input tag, the value have changed. What wrong with my coded? The first page:

<script>
    $(function() {
        $( "#datepicker" ).datepicker({
            dateFormat: "yy/mm/dd",
            showOn: "focus"
        });
    });
    </script>

JSP:

<p>Date: <input type="text" id="datepicker" name="datepicker"></p>

And Servlet:

HttpSession s= request.getSession();
String olddate= (String)request.getParameter("datepicker");
s.setAttribute("DATE", olddate);    
RequestDispatcher rd = request.getRequestDispatcher("nextpage.jsp");

The second Page JSP:

<%
HttpSession s= request.getSession();
DateFormat sdf = new SimpleDateFormat("yyyy/MM/dd");
String date = s.getAttribute("DATE").toString();
Date dateto = sdf.parse(date);
String newDateString = sdf.format(dateto);
    %>
<p>Date From: <input type="text" id="datefrompicker" readonly="readonly">/p>

And Script:

$(document).ready(function(){
        var date =<%=newDateString%>;
        alert(dateto);
        $( "#datefrompicker" ).datepicker( "setDate", date );       
    });

The first page value is 2015/11/01,the value in alert is 91.5909090909091, and input datefrompicker don't have any thing.

What am i do wrong?

after this line `var date =<%=date %>;` just print date value like `alert('<%=date%>' and let me know if any string is getting printed in alert. — rajuGT, Nov 03 '15 at 14:20
The value print in alert is correct? But the value show in input tag is wrong. What is problem :( ? — thefriend, Nov 03 '15 at 14:22
Maybe this is an issue with converting date types in JSP to JS? Maybe you should try using this: http://stackoverflow.com/questions/22824190/how-to-use-format-date-at-jsp-with-jstl-tag — Stephen Rodriguez, Nov 03 '15 at 14:23
@rajuGT Value in first page is 2015/11/01 and the value in the second page is 2016/05/04. — thefriend, Nov 03 '15 at 14:24
@thefriend year format in the declaration and in the alert are mismatching. Update my answer check it. Use SimpleDateFormat if needed. — rajuGT, Nov 03 '15 at 14:36
@thefriend `String olddate= (String)request.getParameter("datepicker");` print using sysout what is the value in `olddate` — rajuGT, Nov 03 '15 at 17:48

rajuGT · Answer 1 · 2015-11-03T14:36:02.110

0

In first code section dateFormat: "yy/mm/dd", the year format in the alert date string yyyy, so use SimpleDateFormat to format accordingly.

The Date.toString method returns date string which cannot be parsed by DatePicker.setDate method.

Example:

$( ".selector" ).datepicker( "setDate", "10/12/2012" );

Please use the SimpleDateFormat to format the date string and everything should work fine.

edited Nov 03 '15 at 14:36

answered Nov 03 '15 at 14:28

rajuGT

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I have change code but why value is unintelligible. – thefriend Nov 03 '15 at 14:56
I think there is no need of DateFormat, change `$( "#datepicker").datepicker({ dateFormat: "yy/mm/dd",` to `$( "#datepicker" ).datepicker({dateFormat: "yyyy/mm/dd",` i.e. yy to yyyy – rajuGT Nov 03 '15 at 17:50
DateFormat yyyy/mm/dd will display year 2 times. – thefriend Nov 03 '15 at 23:06

Value have changed when pass value between 2 jsp pages

1 Answers1