眼都望穿了，到底怎么修改才对啊！

linyuansen 2009-10-01 05:57:06



<%@ page contentType="text/html; charset=gb2312" language="java" import="java.sql.*" errorPage="" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">

<head>

<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />

<% 

String name = request.getParameter("name");

String pwd = request.getParameter("ps");

if( name == null && pwd == null){



if( name.equals("admin") && pwd.equals("password"))

{

	out.println("欢迎" + name + "访问IT在中国，itzcn.com");

}

}

else

{

	response.sendRedirect("loginDemo.html");

}

%>

<title>无标题文档</title>

</head>



<body>

</body>

</html>

type Exception report

message

description The server encountered an internal error () that prevented it from fulfilling this request.

exception

org.apache.jasper.JasperException: An exception occurred processing JSP page /checkDemo.jsp at line 14

11: if( name.equals("admin") && pwd.equals("password"))
12: {
13: out.println("欢迎" + name + "访问IT在中国，itzcn.com");
14: }
15: }
16: else
17: {

Stacktrace:
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:505)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:416)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)

root cause

java.lang.NullPointerException
org.apache.jsp.checkDemo_jsp._jspService(checkDemo_jsp.java:67)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:374)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)

note The full stack trace of the root cause is available in the Apache Tomcat/6.0.20 logs.

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