Tree的问题,急!!!高分求解!!!

转帖看很多人要求目录树，我的代码可以满足大多数要求，UP有分
http://community.csdn.net/Expert/topic/3190/3190905.xml?temp=.8794672

我试过了,this也不行,大虾们帮忙啊!!!

看楼主的意思，主要是在得不到tree这个变量，那么把parent换成parent实施。如果不行，明天又控了，我来实施。

我新发了一个贴子，解决再jsp中应用parent中的变量的问题。
如楼主所言，引用确实有问题。
我把self.parent.tree换成window.tree可以得到。
楼主试试刊。
肯定是我党引用的方式有问题。
期盼高人。

请问 haofengfu(风斧) 用window.tree时在JSP中是否要引用什么特定的包,我在上面的JSP代码中更改过来后,在WINDOW打"."后未出现TREE的属性,请问该如何去解决,谢谢!

window.parent.tree。即使没有提示也没有关系，因为这些东西是要到前台解释的，不是jsp的语法，是javascript的语法。
顺便问一下，你用什么开发工具？我用jcreator.jb太慢。

我将上面JSP中的out.println("var tree=self.parent.tree;");这句话,换成out.println("var tree=window.parent.tree;");后还是无法生成,没用什么工具,只是编辑后,将所有资源放入TOMCAT中运行,在IE浏览运行时,显示不出树,且有脚本错误跟上面我提的一样

建议楼主先从静态的试验一下，比如src先不用jsp文件，暂时硬写进区，用了jsp文件后，暂时不从数据库里读，还是硬写，这样一步步隔离问题，得到故障出再那里。
我实现了jsp文件从父窗口读取变量这样第一步工作（为此我发了一个贴子）。我对这方面的问题也不熟悉，这两天又频繁喝酒，状态狠差。
高手怎么不理会这个贴子，我们是频繁的顶阿，无效。强烈建议楼主从最基本的开始调试。问题不一定出在jsp那里，我们要先学会html方式下如何设定iframe.以下是我试验读父窗口的代码（抬举他了，算不上什么代码）。
html文件：
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<script>
var aaa   ;
aaa="hehe";
</script>
</head>
<body>
  <iframe id="ifrLoad" src="tree_load.jsp "  nowrap="true"></iframe>
</body>
</html>
jsp文件：
tree_load.jsp:
<%@ page contentType="text/html; charset=gb2312" language="java" import="java.sql.*" %>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
</head>
<body>
<%try
{
out.println("<script  >");  out.println("  if ( window.parent != null )");
  out.println("  {");
  out.println("      document.writeln('this window has a parent window');");
  out.println("      if ( window.parent.aaa != null )");
  out.println("      {");
  out.println("          document.writeln('parent window object aaa = ' + window.parent.aaa);");
  out.println("          document.writeln('<br>');");
  out.println("      }");
  out.println("      else ");
  out.println("      {");
  out.println("       alert('找不到变量，可奈何！！！');");
  out.println("      }");
  out.println("  }");
out.println("</script>");
}
catch(Exception e)
{
System.out.println(e);
}
%></body>
</html>

建议楼主先从静态的试验一下，比如src先不用jsp文件，暂时硬写进区，用了jsp文件后，暂时不从数据库里读，还是硬写，这样一步步隔离问题，得到故障出再那里。
我实现了jsp文件从父窗口读取变量这样第一步工作（为此我发了一个贴子）。我对这方面的问题也不熟悉，这两天又频繁喝酒，状态狠差。
高手怎么不理会这个贴子，我们是频繁的顶阿，无效。强烈建议楼主从最基本的开始调试。问题不一定出在jsp那里，我们要先学会html方式下如何设定iframe.以下是我试验读父窗口的代码（抬举他了，算不上什么代码）。
html文件：
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<script>
var aaa   ;//这个变量将要被jsp文件写到iframe中去。
aaa="hehe";
</script>
</head>
<body>
  <iframe id="ifrLoad" src="tree_load.jsp "  nowrap="true"></iframe>
</body>
</html>
jsp文件：
tree_load.jsp:
<%@ page contentType="text/html; charset=gb2312" language="java" import="java.sql.*" %>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
</head>
<body>
<%try
{
out.println("<script  >");  out.println("  if ( window.parent != null )");
  out.println("  {");
  out.println("      document.writeln('this window has a parent window');");
  out.println("      if ( window.parent.aaa != null )");
  out.println("      {");
  out.println("          document.writeln('parent window object aaa = ' + window.parent.aaa);");
  out.println("          document.writeln('<br>');");
  out.println("      }");
  out.println("      else ");
  out.println("      {");
  out.println("       alert('找不到变量，可奈何！！！');");
  out.println("      }");
  out.println("  }");
out.println("</script>");
}
catch(Exception e)
{
System.out.println(e);
}
%></body>
</html>

<%@ page contentType="text/html; charset=gb2312" language="java" import="java.sql.*" errorPage="" %>
<%@ page import="java.io.*"%>
<%@ page import="org.w3c.dom.*"%>
<%@ page import="javax.xml.parsers.*"%>
<%@ page import="java.util.*"%>
<SCRIPT language='JavaScript'>
        function chkform1(){
            var txid = document.tree.Trans.value;
            targetT(txid);
        }
        function chkform(btn){
            document.tree.action = "transaction";
            document.tree.Trans.value = btn ;
            document.tree.submit();
        }
function targetT(txid)
{
        var txidcode = "T"+txid;
if(parent.main.document.DATAIN.MENU==null){
alert("叫祅╰参!!!");
return;
}
parent.main.document.DATAIN.MENU.value=txidcode;
var s = parent.main.document.DATAIN.action;
parent.main.document.DATAIN.action=s+"Menu";
//parent.TXAREA.document.DATAIN.action="/NetBranch/GCSIcpMenu";
parent.main.document.DATAIN.submit();
        parent.mainfrm.document.transinfo.submit();

}
</SCRIPT>
<html>
<style>
a:visited
{
text-decoration: none;
color: #000000;
cursor:default;
}
a:hover
{
text-decoration: none;
color: blue;
cursor:default;
}
a:link
{
text-decoration: none;
color: #000000;
cursor:default;
}
</style>
<head>
<title>JSP Page</title></head>
<body>
<script language="javascript" src="twins.js"></script>
<form action="transaction"  name='tree'target='main'>

<script language="JavaScript" src="tree.js"></script>
<script language="JavaScript">
<%
File file=new File("d:/jbproject/eSubject/eSubject/dept.xml");
try
{
if(!file.exists())
{
file.createNewFile();
}
}
    catch(Exception e)
{
   e.printStackTrace();
    }
String DEPTID=null;
String DEPTNAME=null;
String ROLEID=null;
String ROLENAME=null;
String PERSONID=null;
String PERSONNAME=null;
//String ID=null;
//String name=null;
//String desc=null;
//String strID=null;
//String subjectName=null;
//String subjectID=null;
//String gradeID = null;
//String rubricID = null;
String totalName=null;
ArrayList ay=new ArrayList();
NodeList nl,nlist,list,li,dept;
int i,j,k,m;

DocumentBuilderFactory fact=DocumentBuilderFactory.newInstance();
DocumentBuilder builder=fact.newDocumentBuilder();
Document doc=builder.parse(file);
   dept=doc.getElementsByTagName("TOTALNAME");
   for(int l=0;l<dept.getLength();l++)
   {
       Element deptNode=(Element)dept.item(l);
       totalName=deptNode.getAttribute("TOTALNAME");
   }
    %>
function documentContextMenu()
{
return true;
}
  document.oncontextmenu = documentContextMenu;
  foldersTree = gFld("<%=totalName%>","");
<%


nlist=doc.getElementsByTagName("DEPARTMENT");

for(i=0;i<nlist.getLength();i++)
{
Element node=(Element)nlist.item(i);
    DEPTID=node.getAttribute("DEPTID");
DEPTNAME=node.getAttribute("DEPTNAME");
nl=node.getElementsByTagName("ROLE");
if(nl.getLength()>0)
{
%>
aaa<%=i%>= insFld(foldersTree, gFld("<%=DEPTNAME%>"));
<%
}
else
{
%>
//insDoc(foldersTree, gLnk(0, "<%=DEPTNAME%>","qq.jsp?<%=DEPTNAME%>"));
insDoc(foldersTree,gFld("<%=DEPTNAME%>"));
<%
}

    for(j=0;j<nl.getLength();j++)
    {
Element no=(Element)nl.item(j);
ROLEID=no.getAttribute("ROLEID");
    ROLENAME=no.getAttribute("ROLENAME");
    list=no.getElementsByTagName("PERSON");
if(list.getLength()>0)
    {
%>
aaa<%=i%><%=j%> = insFld(aaa<%=i%>, gFld("<%=ROLENAME%>"));
<%
}
else
{
%>
insDoc(aaa<%=i%>, gLnk(0, "<%=ROLENAME%>","qq.jsp?<%=ROLENAME%>"));
<%
}
for(k=0;k<list.getLength();k++)
{
Element yes=(Element)list.item(k);
    PERSONID=yes.getAttribute("PERSONID");
PERSONNAME=yes.getAttribute("PERSONNAME");
li=yes.getElementsByTagName("grade");
if(li.getLength()>0)
{
%>
aaa<%=i%><%=j%><%=k%> = insFld(aaa<%=i%><%=j%>, gFld("<%=PERSONNAME%>"));
<%
}
else
{
%>
insDoc(aaa<%=i%><%=j%>, gLnk(0, "<%=PERSONNAME%>","qq.jsp?<%=PERSONNAME%>"));
<%
}
/*for(m=0;m<li.getLength();m++)
{
Element now=(Element)li.item(m);
gradeID=now.getAttribute("id");
rubric=now.getElementsByTagName("rubric");
if(rubric.getLength()>0)
{
%>
aaa<%=i%><%=j%><%=k%><%=m%> = insFld(aaa<%=i%><%=j%><%=k%>, gFld("<%=gradeID%>"));
<%
}
else
{
%>
insDoc(aaa<%=i%><%=j%><%=k%>, gLnk(0, "<%=gradeID%>","qq.jsp?<%=gradeID%>"));
<%
}
for(int l=0;l<rubric.getLength();l++)
{
Element know=(Element)rubric.item(l);
rubricID = know.getFirstChild().getNodeValue();
%>
insDoc(aaa<%=i%><%=j%><%=k%><%=m%>, gLnk(0, "<%=rubricID%>","qq.jsp?<%=rubricID%>"));
<%
}
}*/
}
}
}

%>
initializeDocument();
</script>
</form>
</body>
</html>

上面是关于读取XML文件生成树的代码.下面将数据库中的数据按一定的格式生成XML文件,一旦XML文件生成后,即可用上面的JSP读取XML生成树

package xmlBean;
import java.sql.*;
import javax.xml.parsers.*;
import org.apache.xpath.*;
import org.apache.crimson.tree.*;
import javax.xml.transform.dom.*;
import org.w3c.dom.*;
import java.util.*;
import javax.xml.transform.stream.*;
import javax.xml.transform.*;
import java.io.*;
import java.util.*;
public class BuildDeptXML
{
Connection conn=null;
String sql;
int i=0;
ArrayList list=new ArrayList();
File f=new File("dept.xml");
Element totalname=null;
Element department=null;
    Element role=null;
Element person=null;
Element know=null;
String deptID="";
String roleID="";
boolean bool=false;
boolean bool1=false;
boolean bool2=false;
public void BuildXml()
{

try
{
if(!f.exists())
{
f.createNewFile();
}
    DocumentBuilderFactory fact=DocumentBuilderFactory.newInstance();
DocumentBuilder builder=fact.newDocumentBuilder();
Document doc=builder.newDocument();
    conn=DBConnection.getConnection();
sql="select * from dept";
Statement stm=conn.createStatement();
    ResultSet rs=stm.executeQuery(sql);
    totalname=doc.createElement("TOTALNAME");
    totalname.setAttribute("TOTALNAME","小强");
while(rs.next())
{
deptID=rs.getString(1);
department=doc.createElement("DEPARTMENT");
totalname.appendChild(department);
department.setAttribute("DEPTID",rs.getString(1));
department.setAttribute("DEPTNAME",rs.getString(3));// sql="select * from teacher where deptid='"+rs.getString(1)+"'";
// conn=DBConnection.getConnection();
// stm=conn.createStatement();
// ResultSet result=stm.executeQuery(sql);
//
// while(result.next())
// {
    sql="select * from role";//where roleid='"+result.getString(3)+"'";
    conn=DBConnection.getConnection();
    stm=conn.createStatement();
    ResultSet rule=stm.executeQuery(sql);
while(rule.next())
    {
          sql="select * from teacher where roleid='"+rule.getString(1)+"'and deptid='"+deptID+"'";
          conn=DBConnection.getConnection();
             stm=conn.createStatement();
             ResultSet teach=stm.executeQuery(sql);
             if(teach.next())
             {

          role=doc.createElement("ROLE");
          department.appendChild(role);
          role.setAttribute("ROLEID",rule.getString(1));
          role.setAttribute("ROLENAME",rule.getString(2));
          sql="select * from teacher where roleid='"+rule.getString(1)+"'and deptid='"+deptID+"'";
             conn=DBConnection.getConnection();
             stm=conn.createStatement();
             ResultSet teacher=stm.executeQuery(sql);
             while(teacher.next())
             {
              person=doc.createElement("PERSON");
              role.appendChild(person);
                person.setAttribute("PERSONID",teacher.getString(1));
                person.setAttribute("PERSONNAME",teacher.getString(4));
             }
           }

    }
}
doc.appendChild(totalname);
// TransformerFactory tf=TransformerFactory.newInstance();
//     Transformer tranformer=tf.newTransformer();
//     DOMSource source=new DOMSource(doc);
//
//         Properties properties = tranformer.getOutputProperties();
//         properties.setProperty(OutputKeys.ENCODING,"GB2312");
//
//         tranformer.setOutputProperties(properties);
//         StreamResult re=new StreamResult(new FileOutputStream(f));
//         tranformer.transform(source,re);
            ((XmlDocument)doc).write(new FileOutputStream(f));
    }
    catch(Exception e)
    {
     e.printStackTrace();
    }
}

＜－－－－－－－－－－－－－－高手看过来！能不能搞定这个？
http://community.csdn.net/Expert/topic/3472/3472337.xml?temp=.1701624

调试易

Tree的问题,急!!!高分求解!!!

解决方案 »