Integer Auto incremented ID not showing up
SearchStudent.jsp
<script language="javascript">
function validate2(objForm){
int k = 0;
if(objForm.name.value.length==0){
objForm.name.focus();
k++;
}
if(objForm.year.value.length==0){
objForm.year.focus();
k++;
}
if(objForm.id.value.length==0){
objForm.year.focus();
k++;
}
if(k == 0){
return false;
}
return true;
}
</script>
FoundStudents.jsp
<%
Student search = null;
if(request.getParameter("seek_stud") != null){
//reading params from the SearchStudent form
String name = request.getParameter("name");
String year_prime = request.getParameter("year");
int year, id;
try{
year = Integer.parseInt(year_prime);
}catch(Exception e1){
year = 0;
}
String id_prime = request.getParameter("id");
try{
id = Integer.parseInt("id");
}catch(Exception e2){
id = 0;
}
if(name.length() != 0){
search = StudentsManager.getInstance().studByName1(name);
}
if(year > 0){
search = StudentsManager.getInstance().studByName2(year);
}
if(id > 0){
search = StudentsManager.getInstance().studByName3(id);
}
%>
<html>
<body bgcolor=#4AA02C>
<center>
<h2>Student's data</h2>
<table border="1" cellspacing="1" cellpadding="8" bgcolor= #EBDDE2>
<tr>
<td bgcolor= #FF9966><b>ID</b></td>
<td bgcolor= #FF9966><b>Name</b></td>
<td bgcolor= #FF9966><b>Year</b></td>
</tr>
<tr>
<td><%= search.getId()%></td>
<td><%= search.getName()%></td>
<td><%= search.getYear()%></td>
</tr>
</table>
</center>
</body>
</html>
<%}%>
I get org.apache.jasper.JasperException: java.lang.NullPointerException
org.apache.jasper.JasperException: An exception occurred processing JSP page /FoundStudents.jsp at line 58
55: <td bgcolor= #FF9966><b>Year</b></td> 56: </tr> 57: <tr> 58: <td><%= search.getId()%></td> 59: <td><%= search.getName()%></td> 60: <td><%= search.getYear()%></td> 61: </tr>
View Answers
June 30, 2012 at 10:10 PM
Please consider the question deleted. I changed the code ;)
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