problem in jsp
i have created a one jsp in which i imported a package such as follow
<%@page import="tourpack.*"%>
<%@page import="java.sql.*"%>
<html>
<script language="javascript">
function showdt()
{
dt=new Date()
m=dt.getMonth()+1
d=dt.getDate()+"/"+m+"/"+dt.getYear()
document.frm.tdt.value=d
}
</script>
<style>
td
{
font-family:verdana;
color:brown;
font-size:13;
}
</style>
<%
//out.print(request.getParameter("pno"));
int pno=Integer.parseInt(request.getParameter("pno"));
Tourpackge pk=new Tourpackge(pno);
String pknm=pk.findName();
//int bgt=pk.findbgt();
//int dur=pk.finddur();
//int hld=pk.findhld();
String detail=pk.finddetail();
Connection con=null;
Statement st=null;
ResultSet rs=null;
try
{
String userName = "root";
String password = "root";
String url = "jdbc:mysql://localhost:3306/admin";
Class.forName ("com.mysql.jdbc.Driver");
con = DriverManager.getConnection (url, userName, password);
st=con.createStatement();
}
catch(Exception ex){System.out.println(ex);}
%>
<body bgcolor="seashell" onload="showdt()">
<center>
<h2>Package updation</h2>
<form name="frm" method="post" action="/emanpower/jsp/updateFinal.jsp">
<table width="400" cellspacing="7">
<tr>
<td>Updation Date
<td><input type="text" name="tdt">
</tr>
<tr>
<td>Package ID
<td><input type="text" name="pno" value="<%=pno%>" readonly >
</tr><tr>
<td>Package Name
<td><input type="text" name="enm"value="<%=pknm%>" readonly>
</tr><tr>
<td>Current Package Detail
<td><input type="text" name="ct" value="<%=detail%>" readonly>
</tr><tr bgcolor="pink">
<td>New Package Detail
<td><input type="text" value="newdetail">
<%
rs.close();
st.close();
con.close();
%>
<td colspan="2"><center><input type="submit" value="Udate">
</tr>
</table>
</form>
<a href="/contact/jsp/admin.jsp">Admin Home</a>
</body>
</html>
but when i run this jsp it shows error
such as
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException: Exception in JSP: /updatepack.jsp:23
20:</style>
21:<%
22://out.print(request.getParameter("pno"));
23:int pno=Integer.parseInt(request.getParameter("pno"));
24:Tourpackge pk=new Tourpackge(pno);
25:String pknm=pk.findName();
26://int bgt=pk.findbgt();
Stacktrace:
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:504)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:393)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:368)
root cause
java.lang.NumberFormatException: null
java.lang.Integer.parseInt(Integer.java:415)
java.lang.Integer.parseInt(Integer.java:497)
org.apache.jsp.updatepack_jsp._jspService(updatepack_jsp.java:67)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:332)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:368)
note The full stack trace of the root cause is available in the Apache Tomcat/5.5.17 logs.
can any body solve my problem
thanks
shrinath
