求jsp实现目录树，类似资源管理器左边的目录树

jimever 2008-01-31 03:09:07

如题

...全文

419 9 打赏收藏转发到动态举报

写回复

用AI写文章

9 条回复

切换为时间正序

请发表友善的回复…

发表回复

jimever 2008-02-04

打赏
举报

我把那dir.jsp treeww.jsp放到xloadtree里运行不了啊
能否把完整的程序打包发给我啊，谢谢 chjim@163.com

tim17 2008-02-03

打赏
举报

http://topic.csdn.net/u/20070924/09/c02ccd92-e24a-47dd-bca9-9944c46facb5.html
你还真找对人了

jimever 2008-02-01

打赏
举报

多谢，不过我要的是显示本地磁盘目录结构的树

tim17 2008-01-31

打赏
举报

你是要动态的树还是静态的？
如果树中的结点是固定的那就使用 xloadtree或是其他什么树的组件来实现
如果树结点是从数据库里动态读取的，比如书的内容是硬盘目录下的文件那就最好用ajax来实现

pptuzi 2008-01-31

打赏
举报

<%@ page contentType=text/html; charset=GB2312 language=java errorPage=../error.jsp %>
<%@ include file=../conn.jsp%>
<%@ include file=../ds.jsp%>
<%@ taglib uri=http://java.sun.com/jsp/jstl/sql divfix=sql %>
<%request.setCharacterEncoding(gb2312); %>
<HTML><HEAD>
<META http-equiv=Content-Type content=text/html; charset=gb2312>

<TITLE>级联菜单</TITLE>
<LINK rel=stylesheet type=text/css href=style.css>
</HEAD>

<%String sql=select * from Nclass order by NclassId asc;
ResultSet rs=stmt.executeQuery(sql);
%>

<script type=text/javascript>
var onecount;
onecount=0;
subcat = new Array();
<%
int count = 0;
while(rs.next()){
%>
subcat[<%=count%>] = new Array(<%=rs.getString(NclassName)%>,
<%=rs.getString(NclassId)%>,<%=rs.getString(parentId)%>);
<%
count++;
}
rs.close();
%>
onecount=<%=count%>;

function changelocation(locationid)
{
document.myform.NclassId.length = 0;

var locationid=locationid;
var i;
for (i=0;i < onecount; i++)
{
if (subcat[i][2] == locationid)
{
document.myform.NclassId.options[document.myform.NclassId.length] = new
Option(subcat[i][0], subcat[i][1]);
}
}

}
</script>

<FORM method=POST name=myform action=adminsave.jsp?action=add>
<TABLE>

<TR>
<TD>一级分类</TD>
<TD>
<SELECT name=classId onChange=changelocation(document.myform.classId.options
[document.myform.classId.selectedIndex].value) size=1>
<OPTION selected value>==请选一级分类==</OPTION>
<sql:query var=query dataSource=$>
SELECT * FROM class
</sql:query>
<c:forEach var=row items=$>
<option value=$>$</option>
</c:forEach>
</select>
</TD>
<TD>选择二级分类</TD>
<TD>
<SELECT name=NclassId>
<OPTION selected value>==请选二级分类==</OPTION>
</SELECT>
</TD>
</TR>
</TABLE>

</FORM>
</BODY>
</HTML>
<%@ page contentType=text/html; charset=GB2312 language=java errorPage=../error.jsp %>
<%@ include file=../conn.jsp%>
<%@ include file=../ds.jsp%>
<%@ taglib uri=http://java.sun.com/jsp/jstl/sql divfix=sql %>
<%request.setCharacterEncoding(gb2312); %>
<HTML><HEAD>
<META http-equiv=Content-Type content=text/html; charset=gb2312>

<TITLE>级联菜单</TITLE>
<LINK rel=stylesheet type=text/css href=style.css>
</HEAD>

<%String sql=select * from Nclass order by NclassId asc;
ResultSet rs=stmt.executeQuery(sql);
%>

<script type=text/javascript>
var onecount;
onecount=0;
subcat = new Array();
<%
int count = 0;
while(rs.next()){
%>
subcat[<%=count%>] = new Array(<%=rs.getString(NclassName)%>,
<%=rs.getString(NclassId)%>,<%=rs.getString(parentId)%>);
<%
count++;
}
rs.close();
%>
onecount=<%=count%>;

function changelocation(locationid)
{
document.myform.NclassId.length = 0;

var locationid=locationid;
var i;
for (i=0;i < onecount; i++)
{
if (subcat[i][2] == locationid)
{
document.myform.NclassId.options[document.myform.NclassId.length] = new
Option(subcat[i][0], subcat[i][1]);
}
}

}
</script>

<FORM method=POST name=myform action=adminsave.jsp?action=add>
<TABLE>

<TR>
<TD>一级分类</TD>
<TD>
<SELECT name=classId onChange=changelocation(document.myform.classId.options
[document.myform.classId.selectedIndex].value) size=1>
<OPTION selected value>==请选一级分类==</OPTION>
<sql:query var=query dataSource=$>
SELECT * FROM class
</sql:query>
<c:forEach var=row items=$>
<option value=$>$</option>
</c:forEach>
</select>
</TD>
<TD>选择二级分类</TD>
<TD>
<SELECT name=NclassId>
<OPTION selected value>==请选二级分类==</OPTION>
</SELECT>
</TD>
</TR>
</TABLE>

</FORM>
</BODY>
</HTML>

在本论坛找的

waterscript 2008-01-31

打赏
举报

// Highlights the selected node
dTree.prototype.s = function(id) {
if (!this.config.useSelection) return;
var cn = this.aNodes[id];
if (cn._hc && !this.config.folderLinks) return;
if (this.selectedNode != id) {
if (this.selectedNode || this.selectedNode==0) {
eOld = document.getElementById("s" + this.obj + this.selectedNode);
eOld.className = "node";
}
eNew = document.getElementById("s" + this.obj + id);
eNew.className = "nodeSel";
this.selectedNode = id;
if (this.config.useCookies) this.setCookie('cs' + this.obj, cn.id);
}
};

// Toggle Open or close
dTree.prototype.o = function(id) {
var cn = this.aNodes[id];
this.nodeStatus(!cn._io, id, cn._ls);
cn._io = !cn._io;
if (this.config.closeSameLevel) this.closeLevel(cn);
if (this.config.useCookies) this.updateCookie();
};

// Open or close all nodes
dTree.prototype.oAll = function(status) {
for (var n=0; n<this.aNodes.length; n++) {
if (this.aNodes[n]._hc && this.aNodes[n].pid != this.root.id) {
this.nodeStatus(status, n, this.aNodes[n]._ls)
this.aNodes[n]._io = status;
}
}
if (this.config.useCookies) this.updateCookie();
};

// Opens the tree to a specific node
dTree.prototype.openTo = function(nId, bSelect, bFirst) {
if (!bFirst) {
for (var n=0; n<this.aNodes.length; n++) {
if (this.aNodes[n].id == nId) {
nId=n;
break;
}
}
}
var cn=this.aNodes[nId];
if (cn.pid==this.root.id || !cn._p) return;
cn._io = true;
cn._is = bSelect;
if (this.completed && cn._hc) this.nodeStatus(true, cn._ai, cn._ls);
if (this.completed && bSelect) this.s(cn._ai);
else if (bSelect) this._sn=cn._ai;
this.openTo(cn._p._ai, false, true);
};

// Closes all nodes on the same level as certain node
dTree.prototype.closeLevel = function(node) {
for (var n=0; n<this.aNodes.length; n++) {
if (this.aNodes[n].pid == node.pid && this.aNodes[n].id != node.id && this.aNodes[n]._hc) {
this.nodeStatus(false, n, this.aNodes[n]._ls);
this.aNodes[n]._io = false;
this.closeAllChildren(this.aNodes[n]);
}
}
}

// Closes all children of a node
dTree.prototype.closeAllChildren = function(node) {
for (var n=0; n<this.aNodes.length; n++) {
if (this.aNodes[n].pid == node.id && this.aNodes[n]._hc) {
if (this.aNodes[n]._io) this.nodeStatus(false, n, this.aNodes[n]._ls);
this.aNodes[n]._io = false;
this.closeAllChildren(this.aNodes[n]);
}
}
}

// Change the status of a node(open or closed)
dTree.prototype.nodeStatus = function(status, id, bottom) {
eDiv = document.getElementById('d' + this.obj + id);
eJoin = document.getElementById('j' + this.obj + id);
if (this.config.useIcons) {
eIcon = document.getElementById('i' + this.obj + id);
eIcon.src = (status) ? this.aNodes[id].iconOpen : this.aNodes[id].icon;
}
eJoin.src = (this.config.useLines)?
((status)?((bottom)?this.icon.minusBottom:this.icon.minus):((bottom)?this.icon.plusBottom:this.icon.plus)):
((status)?this.icon.nlMinus:this.icon.nlPlus);
eDiv.style.display = (status) ? 'block': 'none';
};

// [Cookie] Clears a cookie
dTree.prototype.clearCookie = function() {
var now = new Date();
var yesterday = new Date(now.getTime() - 1000 * 60 * 60 * 24);
this.setCookie('co'+this.obj, 'cookieValue', yesterday);
this.setCookie('cs'+this.obj, 'cookieValue', yesterday);
};

// [Cookie] Sets value in a cookie
dTree.prototype.setCookie = function(cookieName, cookieValue, expires, path, domain, secure) {
document.cookie =
escape(cookieName) + '=' + escape(cookieValue)
+ (expires ? '; expires=' + expires.toGMTString() : '')
+ (path ? '; path=' + path : '')
+ (domain ? '; domain=' + domain : '')
+ (secure ? '; secure' : '');
};

// [Cookie] Gets a value from a cookie
dTree.prototype.getCookie = function(cookieName) {
var cookieValue = '';
var posName = document.cookie.indexOf(escape(cookieName) + '=');
if (posName != -1) {
var posValue = posName + (escape(cookieName) + '=').length;
var endPos = document.cookie.indexOf(';', posValue);
if (endPos != -1) cookieValue = unescape(document.cookie.substring(posValue, endPos));
else cookieValue = unescape(document.cookie.substring(posValue));
}
return (cookieValue);
};

// [Cookie] Returns ids of open nodes as a string
dTree.prototype.updateCookie = function() {
var str = '';
for (var n=0; n<this.aNodes.length; n++) {
if (this.aNodes[n]._io && this.aNodes[n].pid != this.root.id) {
if (str) str += '.';
str += this.aNodes[n].id;
}
}
this.setCookie('co' + this.obj, str);
};

// [Cookie] Checks if a node id is in a cookie
dTree.prototype.isOpen = function(id) {
var aOpen = this.getCookie('co' + this.obj).split('.');
for (var n=0; n<aOpen.length; n++)
if (aOpen[n] == id) return true;
return false;
};

// If Push and pop is not implemented by the browser
if (!Array.prototype.push) {
Array.prototype.push = function array_push() {
for(var i=0;i<arguments.length;i++)
this[this.length]=arguments[i];
return this.length;
}
};
if (!Array.prototype.pop) {
Array.prototype.pop = function array_pop() {
lastElement = this[this.length-1];
this.length = Math.max(this.length-1,0);
return lastElement;
}
};

waterscript 2008-01-31

打赏
举报

dtree.js 内容过长我分2次发过去

/*--------------------------------------------------|
| dTree 2.05 | www.destroydrop.com/javascript/tree/ |
|---------------------------------------------------|
| Copyright (c) 2002-2003 Geir Landr??? |
| |
| This script can be used freely as long as all |
| copyright messages are intact. |
| |
| Updated: 17.04.2003 |
|--------------------------------------------------*/

// Node object
function Node(id, pid, name, url, title, target, icon, iconOpen, open) {
this.id = id;
this.pid = pid;
this.name = name;
this.url = url;
this.title = title;
this.target = target;
this.icon = icon;
this.iconOpen = iconOpen;
this._io = open || false;
this._is = false;
this._ls = false;
this._hc = false;
this._ai = 0;
this._p;
};

// Tree object
function dTree(objName) {
this.config = {
target : null,
folderLinks : true,
useSelection : true,
useCookies : true,
useLines : true,
useIcons : true,
useStatusText : false,
closeSameLevel : false,
inOrder : false
}
this.icon = {
root : './images/org.gif',
folder : './images/org+.gif',
folderOpen : './images/org+.gif',
node : './images/org-.gif',
empty : './images/empty.gif',
line : './images/line.gif',
join : './images/join.gif',
joinBottom : './images/joinbottom.gif',
plus : './images/plus.gif',
plusBottom : './images/plusbottom.gif',
minus : './images/minus.gif',
minusBottom : './images/minusbottom.gif',
nlPlus : './images/nolines_plus.gif',
nlMinus : './images/nolines_minus.gif'
};
this.obj = objName;
this.aNodes = [];
this.aIndent = [];
this.root = new Node(-1);
this.selectedNode = null;
this.selectedFound = false;
this.completed = false;
};

// Adds a new node to the node array
dTree.prototype.add = function(id, pid, name, url, title, target, icon, iconOpen, open) {
this.aNodes[this.aNodes.length] = new Node(id, pid, name, url, title, target, icon, iconOpen, open);
};

// Open/close all nodes
dTree.prototype.openAll = function() {
this.oAll(true);
};
dTree.prototype.closeAll = function() {
this.oAll(false);
};

// Outputs the tree to the page
dTree.prototype.toString = function() {
var str = '<div class="dtree">\n';
if (document.getElementById) {
if (this.config.useCookies) this.selectedNode = this.getSelected();
str += this.addNode(this.root);
} else str += 'Browser not supported.';
str += '</div>';
if (!this.selectedFound) this.selectedNode = null;
this.completed = true;
return str;
};

// Creates the tree structure
dTree.prototype.addNode = function(pNode) {
var str = '';
var n=0;
if (this.config.inOrder) n = pNode._ai;
for (n; n<this.aNodes.length; n++) {
if (this.aNodes[n].pid == pNode.id) {
var cn = this.aNodes[n];
cn._p = pNode;
cn._ai = n;
this.setCS(cn);
if (!cn.target && this.config.target) cn.target = this.config.target;
if (cn._hc && !cn._io && this.config.useCookies) cn._io = this.isOpen(cn.id);
if (!this.config.folderLinks && cn._hc) cn.url = null;
if (this.config.useSelection && cn.id == this.selectedNode && !this.selectedFound) {
cn._is = true;
this.selectedNode = n;
this.selectedFound = true;
}
str += this.node(cn, n);
if (cn._ls) break;
}
}
return str;
};

// Creates the node icon, url and text
dTree.prototype.node = function(node, nodeId) {
var str = '<div class="dTreeNode">' + this.indent(node, nodeId);
if (this.config.useIcons) {
if (!node.icon) node.icon = (this.root.id == node.pid) ? this.icon.root : ((node._hc) ? this.icon.folder : this.icon.node);
if (!node.iconOpen) node.iconOpen = (node._hc) ? this.icon.folderOpen : this.icon.node;
if (this.root.id == node.pid) {
node.icon = this.icon.root;
node.iconOpen = this.icon.root;
}
str += '<img id="i' + this.obj + nodeId + '" src="' + ((node._io) ? node.iconOpen : node.icon) + '" alt="" />';
}
if (node.url) {
str += '<a id="s' + this.obj + nodeId + '" class="' + ((this.config.useSelection) ? ((node._is ? 'nodeSel' : 'node')) : 'node') + '" href="' + node.url + '"';
if (node.title) str += ' title="' + node.title + '"';
if (node.target) str += ' target="' + node.target + '"';
if (this.config.useStatusText) str += ' onmouseover="window.status=\'' + node.name + '\';return true;" onmouseout="window.status=\'\';return true;" ';
if (this.config.useSelection && ((node._hc && this.config.folderLinks) || !node._hc))
str += ' onclick="javascript: ' + this.obj + '.s(' + nodeId + ');"';
str += '>';
}
else if ((!this.config.folderLinks || !node.url) && node._hc && node.pid != this.root.id)
str += '<a href="javascript: ' + this.obj + '.o(' + nodeId + ');" class="node">';
str += node.name;
if (node.url || ((!this.config.folderLinks || !node.url) && node._hc)) str += '</a>';
str += '</div>';
if (node._hc) {
str += '<div id="d' + this.obj + nodeId + '" class="clip" style="display:' + ((this.root.id == node.pid || node._io) ? 'block' : 'none') + ';">';
str += this.addNode(node);
str += '</div>';
}
this.aIndent.pop();
return str;
};

// Adds the empty and line icons
dTree.prototype.indent = function(node, nodeId) {
var str = '';
if (this.root.id != node.pid) {
for (var n=0; n<this.aIndent.length; n++)
str += '<img src="' + ( (this.aIndent[n] == 1 && this.config.useLines) ? this.icon.line : this.icon.empty ) + '" alt="" />';
(node._ls) ? this.aIndent.push(0) : this.aIndent.push(1);
if (node._hc) {
str += '<a href="javascript: ' + this.obj + '.o(' + nodeId + ');"><img id="j' + this.obj + nodeId + '" src="';
if (!this.config.useLines) str += (node._io) ? this.icon.nlMinus : this.icon.nlPlus;
else str += ( (node._io) ? ((node._ls && this.config.useLines) ? this.icon.minusBottom : this.icon.minus) : ((node._ls && this.config.useLines) ? this.icon.plusBottom : this.icon.plus ) );
str += '" alt="" /></a>';
} else str += '<img src="' + ( (this.config.useLines) ? ((node._ls) ? this.icon.joinBottom : this.icon.join ) : this.icon.empty) + '" alt="" />';
}
return str;
};

// Checks if a node has any children and if it is the last sibling
dTree.prototype.setCS = function(node) {
var lastId;
for (var n=0; n<this.aNodes.length; n++) {
if (this.aNodes[n].pid == node.id) node._hc = true;
if (this.aNodes[n].pid == node.pid) lastId = this.aNodes[n].id;
}
if (lastId==node.id) node._ls = true;
};

// Returns the selected node
dTree.prototype.getSelected = function() {
var sn = this.getCookie('cs' + this.obj);
return (sn) ? sn : null;
};

waterscript 2008-01-31

打赏
举报

<HTML>
<HEAD>
<TITLE>
dtree
</TITLE>
<link rel="StyleSheet" href="dtree.css" type="text/css" />
<script type="text/javascript" src="dtree.js"></script>
</HEAD>
<BODY>
<script type="text/javascript">
//生成一个dTree
d = new dTree('d');

d.add(0,-1,'<strong>※功能列表</strong>');

//说明:
//自动增长id ,(一级菜单为0 二级菜单为一级菜单的id), 显示名称,'url地址'.'....'
d.add(1,0,'员工管理','','','rightFrame')
d.add(2,1,'员工录入','www.baidu.com','','rightFrame')
d.add(3,0,'员工管理','','','rightFrame')
d.add(4,3,'员工录入','www.baidu.com','','rightFrame')
d.add(5,3,'员工录入','www.baidu.com','','rightFrame')
d.add(6,3,'员工录入','www.baidu.com','','rightFrame')
d.add(7,1,'员工录入','www.baidu.com','','rightFrame')

document.write(d);
</script>
</BODY>
</HTML>