description The server encountered an internal error () that prevented it from f

源点 2011-09-05 05:17:28

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: java.lang.NullPointerException
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:522)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:416)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
org.apache.jasper.servlet.Js
pServlet.service(JspServlet.java:267)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)

root cause

java.lang.NullPointerException
org.apache.jsp.task.task_005fopinion_005flist_jsp._jspService(task_005fopinion_005flist_jsp.java:103)
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/6.0.18 logs.

--------------------------------------------------------------------------------

Apache Tomcat/6.0.18

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源点 2011-09-07

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恩。好吧。结贴。。

iuzhao 2011-09-06

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[Quote=引用 5 楼 wokao_wg 的回复:]

引用 4 楼 everwhl 的回复:
看消息是:描述服务器遇到一个内部错误（），它无法实现这一请求。
错误是空指针,是不是哪里为空了,代码贴出来

。。。关键是他可以用，就是偶尔出现这样的错误。。。。
[/Quote]
还是建议你处理一下空指针异常问题，看看你传递的参数，有没有情况下是空值，检查代码

iuzhao 2011-09-06

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建议先解决你的空异常问题，

EverWHL 2011-09-06

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嗯那就是了，肯定是代码有问题的,就是在取值的时候有时候是空的有时候不是,所以就会出现这种的错误

源点 2011-09-05

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额。下班了回家在说。。

源点 2011-09-05

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额。我自己是没有出现过这个问题。是我们经理说的。我自己访问时没有。。就是时有时无的。╮(╯▽╰)╭

EverWHL 2011-09-05

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嗯是的,楼主敢保证在自己电脑上和在别的电脑上都进行了相同操作了吗？如果不是的话还是项目有问题的

源点 2011-09-05

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或者改成
"-1".equals(userid)
?

源点 2011-09-05

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其实我在自己电脑上从没出现过那个错误。。。。

源点 2011-09-05

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额。那意思是这样可能有问题？

EverWHL 2011-09-05

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String userid ="-1";为什么要这么写？
if(userid.equalsIgnoreCase("-1"))
String判断是否相同是.equals啊
equalsIgnoreCase而他是不考虑大小写的

源点 2011-09-05

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接收参数userid 取得后查询数据库有相应的用户的话取得用户信息
接收参数itemid 选择跳入的页面

源点 2011-09-05

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<%@ page language="java" import="java.util.*" pageEncoding="gb2312"%>
<%@ page import="com.base.*"%>
<%@ include file="base/conn.jsp" %>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">

<title>任务管理</title>

</head>

<body>
<%
request.setCharacterEncoding("gb2312");
String oakuserid = "";
oakuserid = request.getParameter("userid");
String userid ="-1";
if(oakuserid!=null&& ("".equals(oakuserid))==false){
userid = login.CheckUserid(con,oakuserid);
System.out.println("oakuserid:"+oakuserid+"\t"+"userid:"+userid);
}
if(userid.equalsIgnoreCase("-1")){
//out.println("<script language='javascript'>window.location='error.html';</script>");%>
<center><div style="margin-top: 100px;width : 500px;color :red;">无权限，请与管理员联系</div></center>
<% //out.println("<script language='javascript'>history.go(-2);</script>");
} else if(userid.equalsIgnoreCase("-2")){%>
<center><div style="margin-top: 100px;width : 500px;color :red;">非法请求，请与管理员联系</div></center>
<%//out.println("<script language='javascript'>alert('无权限或非法请求，请与管理员联系！');</script>");
} else {
Statement stmt=null;
try{
stmt =con.createStatement();
stmt.execute("insert into ss_login (userid,ip,syskind) values ('" + userid + "','" + request.getRemoteHost() + "','oak')"); //request.getRemoteAddr()
ResultSet rst=stmt.executeQuery("select * from vss_user where userid = '" + userid + "'");
if(rst.next()){
session.setAttribute("sysuserid", com.base.fun.getStr2(rst.getString("userid")));
session.setAttribute("sysusername", com.base.fun.getStr2(rst.getString("username")));
session.setAttribute("sysunitid", com.base.fun.getStr2(rst.getString("unitid")));
// session.setAttribute("sysunitid", com.base.fun.getStr2(rst.getString("taskunitid")));
session.setAttribute("sysunitname", com.base.fun.getStr2(rst.getString("unitname")));
session.setAttribute("systeamid", com.base.fun.getStr2(rst.getString("banzuunitid")));
session.setAttribute("systeamname", com.base.fun.getStr2(rst.getString("teamname")));
session.setAttribute("sysmobile", com.base.fun.getStr2(rst.getString("kf_mobile")));
session.setAttribute("sysbbsuserid", com.base.fun.getStr2(rst.getString("bbsuserid")));
session.setAttribute("sysbbspwd", com.base.fun.getStr2(rst.getString("bbspwd")));
session.setAttribute("sysmenutop", com.base.fun.getStrStr(rst.getString("menutop"),"1"));
session.setAttribute("sysmenumain", com.base.fun.getStrStr(rst.getString("menumain"),"2"));
//session.setAttribute("syspwd", pwd);
}
String itemid = "";
if(request.getParameter("itemid")==null || "".equals(request.getParameter("itemid"))) {
itemid = "0";
} else {
itemid = request.getParameter("itemid");
}
%>
<script>
var onum = <%=itemid%>;
if(onum == 1) { //待处理任务
document.location = "task/task_resolve_list.jsp"
} else if(onum == 2) { //新增价任务
document.location = "task/task_add.jsp"
} else if(onum == 3) { //待评价任务
document.location = "task/task_opinion_list.jsp";
} else if(onum == 4) { //已分配任务
document.location = "task/task_alloted_list.jsp";
} else if(onum == 5) { //已处理任务
document.location = "task/task_resolved_list.jsp";
} else if(onum == 6) { //已评价任务
document.location = "task/task_opinioned_list.jsp";
} else if(onum == 7) { //我关注的任务
document.location = "task/task_attention_list.jsp";
} else if(onum == 8) { //任务统计
document.location = "task/task_sata.jsp";
}else{
document.location = "index.jsp";
}
</script>
<% }catch(Exception e){
e.printStackTrace();
}finally{
if(stmt!=null)stmt.close();
}
}
%>
</body>
</html>

源点 2011-09-05