Thanks, but I already had a look.
The line causing the error in that file is the line that calls the
method: thisUser.login( userid, passwd );
Which itself appears to be causing the error, or am I missing something?
The login_jsp.java file looks like this of you're interested:
package org.apache.jsp;
import javax.servlet.*;
import javax.servlet.http.*;
import javax.servlet.jsp.*;
import org.apache.jasper.runtime.*;
public class login_jsp extends HttpJspBase {
private static java.util.Vector _jspx_includes;
public java.util.List getIncludes() {
return _jspx_includes;
}
public void _jspService(HttpServletRequest request,
HttpServletResponse response)
throws java.io.IOException, ServletException {
JspFactory _jspxFactory = null;
javax.servlet.jsp.PageContext pageContext = null;
HttpSession session = null;
ServletContext application = null;
ServletConfig config = null;
JspWriter out = null;
Object page = this;
JspWriter _jspx_out = null;
try {
_jspxFactory = JspFactory.getDefaultFactory();
response.setContentType("text/html;charset=ISO-8859-1");
pageContext = _jspxFactory.getPageContext(this, request, response,
null, true, 8192, true);
application = pageContext.getServletContext();
config = pageContext.getServletConfig();
session = pageContext.getSession();
out = pageContext.getOut();
_jspx_out = out;
ISPSelfCare.Login thisUser = null;
synchronized (session) {
thisUser = (ISPSelfCare.Login)
pageContext.getAttribute("thisUser", PageContext.SESSION_SCOPE);
if (thisUser == null){
try {
thisUser = (ISPSelfCare.Login)
java.beans.Beans.instantiate(this.getClass().getClassLoader(),
"ISPSelfCare.Login");
} catch (ClassNotFoundException exc) {
throw new InstantiationException(exc.getMessage());
} catch (Exception exc) {
throw new ServletException("Cannot create bean of class " +
"ISPSelfCare.Login", exc);
}
pageContext.setAttribute("thisUser", thisUser,
PageContext.SESSION_SCOPE);
}
}
out.write("\n\n");
String userid = request.getParameter( "userid" );
String passwd = request.getParameter( "passwd" );
// if( userid == null || passwd == null )
// throw new RuntimeException( "Invalid arguments" );
// if( userid.length() == 0 )
// throw new RuntimeException( "Please provide your dial-up
user id." );
// if( passwd.length() == 0 )
// throw new RuntimeException( "Please provide your dial-up
password." );
// <jsp:useBean id="thisUser" class="ISPSelfCare.Login"
scope="session" />
// <jsp:setProperty name="thisUser" property="custID" />
// <jsp:setProperty name="thisUser" property="userID" />
// <jsp:setProperty name="thisUser" property="login" />
thisUser.login( userid, passwd );
// thisUser.something();
// thisUser.setUserID( userid );
response.sendRedirect( "index.jsp" );
out.write("\n");
} catch (Throwable t) {
out = _jspx_out;
if (out != null && out.getBufferSize() != 0)
out.clearBuffer();
if (pageContext != null) pageContext.handlePageException(t);
} finally {
if (_jspxFactory != null)
_jspxFactory.releasePageContext(pageContext);
}
}
}
On Mon, 2004-04-19 at 10:58, Thomas Chua wrote:
> try looking for this file in your work directory....
> login_jsp._jspService(login_jsp.java:74)
>
>
>
>
>
> "Adam Buglass" <[EMAIL PROTECTED]>
> 04/19/2004 05:41 PM
> Please respond to "Tomcat Users List"
>
>
> To: "Tomcat Users List" <[EMAIL PROTECTED]>
> cc:
>
> Subject: Mysterious Null Pointer Exception in Login script
>
>
>
> Hi, I hope this is the right list for this, it's been driving me up the
> wall!
>
> First things first, I'm using tomcat servlet container 4.1 with Suns
> J2SE 1.4.1
>
> The problem is I have a simple login procedure whereby a user enters
> their id and password into a JSP which passes the information to a Java
> Method. This method in turn checks the Database to see if the user is
> valid. If the user is valid a new session is created and the information
> stored in a bean.
>
> So far so good, I've used this method on several occassions with no
> trouble.
>
> However when I attempt to login (with any set of data) I get a
> NullPointerException at line 30 of the class file. Always the same
> exception and always at line 30 no matter what I do. I can't find any
> useful info from the logs or the exception that's thrown.
>
> Has anyone any thoughts on what may be causing this or pointers on how
> to solve it?
>
> The offending page is at www.golduk.net/selfcare/index.jsp
>
> Thanks,
> Adam Buglass
>
>
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