JSP运行出现HTTP STATUS 500-是什么意思?怎么改?

peijng 2012-04-24 05:47:28
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: An exception occurred processing JSP page /qtleft.jsp at line 109

106: <%
107: String sqlxtgg="select * from dx where leibie='系统公告'";
108: ResultSet RS_resultxtgg=connDbBean.executeQuery(sqlxtgg);
109: while(RS_resultxtgg.next())
110: {
111: out.print(RS_resultxtgg.getString("content"));
112: }


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.index_jsp._jspService(index_jsp.java:287)
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.

Apache Tomcat/6.0.20
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qqqqqqqq0 2014-12-11
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可能是更新了jsp,tomcat不认识了,需要重启tomcat
qingyinlancy 2012-04-24
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这代码很难看。。。
peijng 2012-04-24
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那帮忙看下上面index.jsp中有什么错呢
peijng 2012-04-24
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index.jsp

<%@ page language="java" pageEncoding="gb2312"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<%@ page language="java" import="java.sql.*" %>
<jsp:useBean id="connDbBean" scope="page" class="db.db"/>
<html>
<head>
<base href="<%=basePath%>">

<title>娄底市旅游信息查询系统</title>
<style type="text/css">
<!--
.STYLE2 {color: #FFFFFF}
.STYLE4 {color: #FFFFFF; font-weight: bold; }
.STYLE6 {color: #198A95; font-weight: bold; }
.STYLE5 { color: #72AC27;
font-size: 26pt;
}
-->
</style>
<link href="qtimages/StyleSheet.css" rel="stylesheet" type="text/css">
</head>

<body bgcolor="#FFFFFF" leftmargin="0" topmargin="0" marginwidth="0" marginheight="0">
<table width="900" height="964" border="0" align="center" cellpadding="0" cellspacing="0" id="__01">
<tr>
<td>
<%@ include file="qttop.jsp"%></td>
</tr>
<tr>
<td height="541"><table id="__01" width="900" height="532" border="0" cellpadding="0" cellspacing="0">
<tr>
<td height="532" valign="top"><%@ include file="qtleft.jsp" %></td>
<td width="4" background="qtimages/img_02_02.gif"> </td>
<td valign="top"><table id="__01" width="676" height="506" border="0" cellpadding="0" cellspacing="0">
<tr>
<td height="193"><table id="__01" width="676" height="193" border="0" cellpadding="0" cellspacing="0">
<tr>
<td height="31" colspan="2" background="qtimages/img_02_03_01_01.gif"><table width="100%" border="0" cellpadding="0" cellspacing="0">
<tr>
<td width="19%" height="16" align="center"><span class="STYLE4">站内新闻</span></td>
<td width="66%"> </td>
<td width="15%">更多>></td>
</tr>
</table></td>
</tr>
<tr>
<td width="225" height="162" align="center"> <SCRIPT type=text/javascript>
var focus_width=222;
var focus_height=162;
var text_height=20;
var swf_height = focus_height+text_height;
var pics="qtimages/flashpic/1.gif|qtimages/flashpic/2.gif|qtimages/flashpic/3.jpg|qtimages/flashpic/4.jpg|qtimages/flashpic/5.jpg";

var links="http://www.google.cn|http://www.google.cn|http://#|http://#|http://#";

var texts="2009年度周一夜学颁奖仪式|转作风优环境动员大会|周一夜学讲座现场|钱库镇武警活动|人民政府研讨大会";


pics="qtimages/flashpic/1.gif|qtimages/flashpic/2.gif|qtimages/flashpic/3.jpg|qtimages/flashpic/4.jpg|qtimages/flashpic/5.jpg";
links="index.jsp|index.jsp|index.jsp|index.jsp|index.jsp";
texts="开展爱心助学活动|钱库镇举行领导迎送会|钱库镇举行第六次人口普查培训会|我县开展名人故居保护视察活动(图文)|县委统战部在钱库镇开展2010上半年度统战检察交流|";

document.write('<embed src="qtimages/pixviewer.swf" wmode="opaque" FlashVars="pics='+pics+'&links='+links+'&texts='+texts+'&borderwidth='+focus_width+'&borderheight='+focus_height+'&textheight='+text_height+'" menu="false" bgcolor="#ffffff" quality="Best" width="'+ focus_width +'" height="'+ swf_height +'" allowScriptAccess="sameDomain" type="application/x-shockwave-flash" pluginspage="http://www.macromedia.com/go/getflashplayer">');

</SCRIPT></td>
<td width="451" height="162" valign="top"><table width="89%" border="0" align="center" cellpadding="0" cellspacing="0">
<%
String sql="";
sql="select top 6 id,biaoti,addtime from xinwentongzhi order by id desc";

ResultSet RS_result=connDbBean.executeQuery(sql);
String id="";
String biaoti="";String addtime="";
int i=0;

while(RS_result.next()){
i=i+1;
id=RS_result.getString("id");
biaoti=RS_result.getString("biaoti");addtime=RS_result.getString("addtime");



%>
<tr>
<td width="64%" height="25"><A href="gg_detail.jsp?id=<%=id %>" class="b"><img src="qtimages/3.gif" border="0"> <%=biaoti %></A></td>
<td width="36%"><div align="right"><%=addtime %></div></td>
</tr>
<%
}
%>
</table></td>
</tr>
</table></td>
</tr>
<tr>
<td height="136"><table id="__01" width="676" height="136" border="0" cellpadding="0" cellspacing="0">
<tr>
<td width="676" height="34" background="qtimages/img_02_03_02_01.gif"><table width="100%" border="0" cellpadding="0" cellspacing="0">
<tr>
<td width="14%" align="center"><span class="STYLE6">最新景点信息</span></td>
<td width="86%"> </td>
</tr>
</table></td>
</tr>
<tr>
<td width="676" height="101" background="qtimages/img_02_03_02_02.gif"><table width="96%" height="100%" border="0" cellpadding="0" cellspacing="0">
<tr>
<%

//String sql="";
sql="select top 4 * from jingdianxinxi where 1=1";

sql=sql+" order by id desc";
RS_result=connDbBean.executeQuery(sql);
//String id="";
String mingcheng="";String xingji="";String dizhi="";String dianhua="";String jianjie="";String zhaopian="";String piaojia="";
//String addtime="";

//int i=0;





while(RS_result.next()){
i=i+1;
id=RS_result.getString("id");
mingcheng=RS_result.getString("mingcheng");xingji=RS_result.getString("xingji");dizhi=RS_result.getString("dizhi");dianhua=RS_result.getString("dianhua");jianjie=RS_result.getString("jianjie");zhaopian=RS_result.getString("zhaopian");piaojia=RS_result.getString("piaojia");




%>
<td><table width="89%" height="100%" border="0" align="center" cellpadding="0" cellspacing="0">
<tr>
<td height="81" align="center"><a href="prodetail.jsp?id=<%=id%>"><img src="<%=zhaopian%>" width="88" height="75" border="0"></a></td>
</tr>
<tr>
<td align="center"><%=mingcheng%></td>
</tr>
</table></td>
<%
}
%>
</tr>
</table></td>
</tr>
<tr>
<td><img src="qtimages/img_02_03_02_03.gif" width="676" height="1" alt=""></td>
</tr>
</table></td>
</tr>

<tr>
<td height="171"><table id="__01" width="676" height="136" border="0" cellpadding="0" cellspacing="0">
<tr>
<td width="676" height="34" background="qtimages/img_02_03_02_01.gif"><table width="100%" border="0" cellpadding="0" cellspacing="0">
<tr>
<td width="14%" align="center"><span class="STYLE6">网站简介</span></td>
<td width="86%"> </td>
</tr>
</table></td>
</tr>
<tr>
<td width="676" height="101" valign="middle" background="qtimages/img_02_03_02_02.gif"><br>
<table width="96%" height="88%" border="0" cellpadding="0" cellspacing="0">
<tr>

<td valign="top"><p><span class="unnamed2">   本网站以交流为主,广大朋友可以通过我站注册成为会员,然后发布自己的自游行信息,也可以查询其他相关的旅游信息,希望我站可以给大家带来一个好心情,谢谢!!其他文字性东西请自己写两句!!!!!    本网站以交流为主,广大朋友可以通过我站注册成为会员,然后发布自己的自游行信息,也可以查询其他相关的旅游信息,希望我站可以给大家带来一个好心情,谢谢!!其他文字性东西请自己写两句!!!!! </span>   <span class="unnamed2">本网站以交流为主,广大朋友可以通过我站注册成为会员,然后发布自己的自游行信息,也可以查询其他相关的旅游信息,希望我站可以给大家带来一个好心情,谢谢!!其他文字性东西请自己写两句!!!!! </span></p>
<p>   <span class="unnamed2">本网站以交流为主,广大朋友可以通过我站注册成为会员,然后发布自己的自游行信息,也可以查询其他相关的旅游信息,希望我站可以给大家带来一个好心情,谢谢!!其他文字性东西请自己写两句!!!!! </span></p></td>

</tr>
</table></td>
</tr>
<tr>
<td><img src="qtimages/img_02_03_02_03.gif" width="676" height="1" alt=""></td>
</tr>
</table></td>
</tr>


</table></td>
</tr>
</table></td>
</tr>
<tr>
<td><%@ include file="qtdown.jsp"%></td>
</tr>
</table>
</body>
</html>
xuantian868 2012-04-24
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如果使用的是eclipse ,可以在工作空间中找到编译的index_jsp.java 类,然后找到对应的错误行 287 ,对照index.jsp 就知道哪行有问题了。
路径类似 workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp...
MiceRice 2012-04-24
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java.lang.NullPointerException
org.apache.jsp.index_jsp._jspService(index_jsp.java:287)

空指针,程序有逻辑错误,检查index.jsp吧。

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