大家快帮忙,我很着急。一个错误提示
黑兵 2004-10-01 05:02:40 文件内容
<%@ page contentType="text/html; charset=GB2312" %>
<%@ page language="java" %>
<%@ page import="java.sql.*" %>
<%@ page import="java.util.*"%>
<jsp:useBean id="myconn" class="dulebean.conn" scope="application"/>
<jsp:useBean id="myuser" class="dulebean.myuser" scope="application"/>
<%
//定义上页传过来的变量接收变量
String s_xm=new String(request.getParameter("xm").getBytes("8859_1"));
String s_nr=new String(request.getParameter("nr1").getBytes("8859_1"));
//写入数据库
String sql = "insert into dule_jcsj(lb,nr) values('"+s_xm+"','"+s_nr+"')";
ResultSet rs = myconn.executeQuery(sql);
rs.close();
%>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<meta name="GENERATOR" content="Microsoft FrontPage 4.0">
<meta name="ProgId" content="FrontPage.Editor.Document">
<title>基础数据管理</title>
</head>
<body background="images/bg-1.gif">
<script language=javascript>
window.location="msg.jsp?xx=您成功地添加了一条基础信息!&cc=jcsj"
</script>
</body>
</html>
查看表时,发现数据已经添加进去了。可却总是有错误提示如下:
HTTP Status 500 -
--------------------------------------------------------------------------------
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:358)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:301)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:248)
javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
root cause
java.lang.NullPointerException
org.apache.jsp.jcsj1_jsp._jspService(jcsj1_jsp.java:70)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:133)
javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:311)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:301)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:248)
javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
note The full stack trace of the root cause is available in the Tomcat logs.
--------------------------------------------------------------------------------
Apache Tomcat/5.0.16