jsp 中import 自己的包，报错，package does not exist

zhoufr0312 2012-07-06 11:16:05

大家帮我看下是何原因

jsp：
<%@ page language="java" contentType="text/html; charset=GB18030" pageEncoding="GB18030"%>
<%@ page import="java.sql.*"%>
<%@ page import="java.util.*"%>
<%@ page import="com.dao.*"%>

<%@ page import="java.util.List" %>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=GB18030">
<link rel="StyleSheet" href="css/dtree.css" type="text/css" />
<script type="text/javascript" src="js/dtree.js"></script>

<div class="dtree">
<p>
<a href="javascript: d.openAll();">open all</a> |
<a href="javascript: d.closeAll();">close all</a>
</p>
<table>
<tr>
<td></td>
</tr>
<script type="text/javascript">
<%
String sql="select * from treeinfo1";
NodesImpl nodesImpl = new NodesImpl();
List list=nodesImpl.query(sql);
Iterator iterator = list.iterator();
while(iterator.hasNext()){
Nodes treenode = (Nodes)iterator.next();
if(treenode.getPid()==0){
%>
d.add(<%=treenode.getId()%>,<%=treenode.getPid()%>,'<%=treenode.getName()%>')
<%}else{%>
d.add(<%=treenode.getId()%>,<%=treenode.getPid()%>,'<%=treenode.getName()%>',parent.getUrlByCatalogId('<%=treenode.getId()%>'),null,'list');
<%}}%>

</script>
</table>
</div>
</head>
<title></title>
<body></body>
</html>

===================================
错误提示：

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: Unable to compile class for JSP

Generated servlet error:
C:\Program Files\Apache Software Foundation\Tomcat 5.0\work\Catalina\localhost\videoTraning\org\apache\jsp\left2_jsp.java:8: package com.dao does not exist
import com.dao.*;
^

An error occurred at line: 22 in the jsp file: /left2.jsp
Generated servlet error:
C:\Program Files\Apache Software Foundation\Tomcat 5.0\work\Catalina\localhost\videoTraning\org\apache\jsp\left2_jsp.java:70: cannot find symbol
symbol : class NodesImpl
location: class org.apache.jsp.left2_jsp
NodesImpl nodesImpl = new NodesImpl();
^

An error occurred at line: 22 in the jsp file: /left2.jsp
Generated servlet error:
C:\Program Files\Apache Software Foundation\Tomcat 5.0\work\Catalina\localhost\videoTraning\org\apache\jsp\left2_jsp.java:70: cannot find symbol
symbol : class NodesImpl
location: class org.apache.jsp.left2_jsp
NodesImpl nodesImpl = new NodesImpl();
^

An error occurred at line: 22 in the jsp file: /left2.jsp
Generated servlet error:
C:\Program Files\Apache Software Foundation\Tomcat 5.0\work\Catalina\localhost\videoTraning\org\apache\jsp\left2_jsp.java:74: cannot find symbol
symbol : class Nodes
location: class org.apache.jsp.left2_jsp
Nodes treenode = (Nodes)iterator.next();
^

An error occurred at line: 22 in the jsp file: /left2.jsp
Generated servlet error:
C:\Program Files\Apache Software Foundation\Tomcat 5.0\work\Catalina\localhost\videoTraning\org\apache\jsp\left2_jsp.java:74: cannot find symbol
symbol : class Nodes
location: class org.apache.jsp.left2_jsp
Nodes treenode = (Nodes)iterator.next();
^
5 errors

org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:84)
org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:332)
org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:412)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:472)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:451)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:439)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:511)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:295)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)

note The full stack trace of the root cause is available in the Apache Tomcat/5.0.28 logs.

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