• 企业400电话
  • 微网小程序
  • AI电话机器人
  • 电商代运营
  • 全 部 栏 目

    企业400电话 网络优化推广 AI电话机器人 呼叫中心 网站建设 商标✡知产 微网小程序 电商运营 彩铃•短信 增值拓展业务
    JSP 动态树的实现
    第一步:在开始之前我们需要准备这么一个js文件,代码如下。我姑且将它命名为tree.js。
    复制代码 代码如下:

    function Node(id, pid, name, url, title, target, icon, iconOpen, open, appendedStr) {
        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.appendedStr = appendedStr;

        this._io = open || false;
        this._is = false;
        this._ls = false;
        this._hc = false;
        this._ai = 0;
        this._p;
    };
    // Tree object
    function tree(objName,path) {
        this.path = path;
        this.config = {
            target                    : null,
            folderLinks            : true,
            useSelection        : true,
            useCookies            : true,
            useLines                : true,
            useIcons                : true,
            useStatusText        : false,
            closeSameLevel    : false,
            inOrder                    : false
        }
        this.icon = {
            root                : path + 'TreeDemo/images/tree_base.gif',
            folder            : path + 'TreeDemo/images/tree_folder.gif',
            folderOpen    : path + 'TreeDemo/images/tree_folderopen.gif',
            node                : path + 'TreeDemo/images/tree_folder.gif',
            empty                : path + 'TreeDemo/images/tree_empty.gif',
            line                : path + 'TreeDemo/images/tree_line.gif',
            join                : path + 'TreeDemo/images/tree_join.gif',
            joinBottom    : path + 'TreeDemo/images/tree_joinbottom.gif',
            plus                : path + 'TreeDemo/images/tree_plus.gif',
            plusBottom    : path + 'TreeDemo/images/tree_plusbottom.gif',
            minus                : path + 'TreeDemo/images/tree_minus.gif',
            minusBottom    : path + 'TreeDemo/images/tree_minusbottom.gif',
            nlPlus            : path + 'TreeDemo/images/tree_nolines_plus.gif',
            nlMinus            : path + 'TreeDemo/images/tree_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
    tree.prototype.add = function(id, pid, name, url, title, target, icon, iconOpen, open, appendedStr) {
        this.aNodes[this.aNodes.length] = new Node(id, pid, name, url, title, target, icon, iconOpen, open, appendedStr);
    };
    // Open/close all nodes
    tree.prototype.openAll = function() {
        this.oAll(true);
    };
    tree.prototype.closeAll = function() {
        this.oAll(false);
    };
    // Outputs the tree to the page
    tree.prototype.toString = function() {
        var str = 'div class="tree">\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
    tree.prototype.addNode = function(pNode) {
        var str = '';
        var n=0;
        if (this.config.inOrder) n = pNode._ai;
        for (n; nthis.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
    tree.prototype.node = function(node, nodeId) {
        var str = 'div class="treeNode">' + 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) + '" 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 + '" 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 + ');" href="javascript: ' + this.obj + '.o(' + nodeId + ');" class="node">';
        str += node.name;
        if (node.url || ((!this.config.folderLinks || !node.url) node._hc)) str += '/a>';

        //[!--begin--]add by wangxr to append str
        if(node.appendedStr) str += node.appendedStr;
        //[!--end--]
        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') + ';" 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
    tree.prototype.indent = function(node, nodeId) {
        var str = '';
        if (this.root.id != node.pid) {
            for (var n=0; nthis.aIndent.length; n++)
                str += 'img src="' + ( (this.aIndent[n] == 1 this.config.useLines) ? this.icon.line : this.icon.empty ) + '" 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 + ');" 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 += '" 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) + '" 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
    tree.prototype.setCS = function(node) {
        var lastId;
        for (var n=0; nthis.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
    tree.prototype.getSelected = function() {
        var sn = this.getCookie('cs' + this.obj);
        return (sn) ? sn : null;
    };
    // Highlights the selected node
    tree.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
    tree.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
    tree.prototype.oAll = function(status) {
        for (var n=0; nthis.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
    tree.prototype.openTo = function(nId, bSelect, bFirst) {
        if (!bFirst) {
            for (var n=0; nthis.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
    tree.prototype.closeLevel = function(node) {
        for (var n=0; nthis.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
    tree.prototype.closeAllChildren = function(node) {
        for (var n=0; nthis.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)
    tree.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
    tree.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
    tree.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
    tree.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
    tree.prototype.updateCookie = function() {
        var str = '';
        for (var n=0; nthis.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
    tree.prototype.isOpen = function(id) {
        var aOpen = this.getCookie('co' + this.obj).split('.');
        for (var n=0; naOpen.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;iarguments.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;
        }
    };

    由于代码太长,我这里就不给大家拿来细讲了,我们只要会用就OK。就像猪肉我们能吃就OK,不一定非要知道猪养。
    第二步:创建数据库,创建数据库的代码如下,我这边使用的是MySQL数据为。
    create database `treedemo`;
    use treedemo;
    create table trees(
    tid int primary key not null,
    pid int not null,
    tname varchar(50) not null,
    isleaf int
    );
    select * from trees;
    insert into trees(tid,pid,tname)values(0,-1,'组织内容');
    insert into trees(tid,pid,tname)values(1,0,'短信');
    insert into trees(tid,pid,tname)values(2,0,'彩信');
    insert into trees(tid,pid,tname)values(3,0,'新闻');
    insert into trees(tid,pid,tname)values(4,1,'移动生活');
    insert into trees(tid,pid,tname)values(5,1,'单条滚动点播');
    insert into trees(tid,pid,tname)values(6,2,'定制');
    insert into trees(tid,pid,tname)values(7,2,'点播');
    insert into trees(tid,pid,tname)values(8,3,'房产频道');
    insert into trees(tid,pid,tname)values(9,3,'农村频道');
    insert into trees(tid,pid,tname)values(10,3,'数码频道');
    insert into trees(tid,pid,tname)values(11,6,'幽默笑话');
    insert into trees(tid,pid,tname)values(12,7,'铃声');
    insert into trees(tid,pid,tname)values(13,7,'贺卡');
    insert into trees(tid,pid,tname)values(14,7,'动画');
    insert into trees(tid,pid,tname)values(15,13,'贺卡1');
    insert into trees(tid,pid,tname)values(16,13,'贺卡2');
    insert into trees(tid,pid,tname)values(17,13,'贺卡3');
    insert into trees(tid,pid,tname)values(18,13,'贺卡4');
    select * from trees;
    表字段的说明:
    (1)tid表示节点的编号;
    (2)pid 该节点父节点的编号;
    (3)tname 节点名称;
    (4)isleaf 表明该节点是否为叶节点,叶节点为1,非叶节点为0。该字段可根据实际情况增删。

    第三步:在myeclipse中创建一个WEB工程,命名为“TreeDemo”。在WebRoot文件夹下创建js文件夹、css文件夹、images文件夹分别用来存放.js文件、.css文件和项目中用到的图片文件。
    第四步:编写数据库连接类,其中的用户名、密码需要根据你数据库情况进行修改,代码如下。
    复制代码 代码如下:

    package com.sx.mas.utils;
    import java.sql.Connection;
    import java.sql.DriverManager;
    import java.sql.SQLException;
    public class DBConn {
    private static final String DRIVER="com.mysql.jdbc.Driver";
    private static final String URL="jdbc:mysql://localhost:3306/treedemo";
    Connection conn=null;
    public Connection getConnection(){
    try {
    Class.forName(DRIVER);
    conn=DriverManager.getConnection(URL,"root","root");
    } catch (ClassNotFoundException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
    } catch (SQLException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
    }
    return conn;
    }
    }
    package com.sx.mas.utils;
    import java.sql.Connection;
    import java.sql.DriverManager;
    import java.sql.SQLException;
    public class DBConn {
        private static final String DRIVER="com.mysql.jdbc.Driver";
        private static final String URL="jdbc:mysql://localhost:3306/treedemo";
        Connection conn=null;
        public Connection getConnection(){
            try {
                Class.forName(DRIVER);
                conn=DriverManager.getConnection(URL,"root","root");
            } catch (ClassNotFoundException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            } catch (SQLException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
            return conn;
        }
    }

    第五步:编写javabean类,代码如下,
    复制代码 代码如下:

    package com.sx.mas.beans;
    public class TreeNode {
    private int tid;
    private int pid;
    private String tname;
    private int isleaf;
    public int getTid() {
    return tid;
    }
    public void setTid(int tid) {
    this.tid = tid;
    }
    public int getPid() {
    return pid;
    }
    public void setPid(int pid) {
    this.pid = pid;
    }
    public String getTname() {
    return tname;
    }
    public void setTname(String tname) {
    this.tname = tname;
    }
    public int getIsleaf() {
    return isleaf;
    }
    public void setIsleaf(int isleaf) {
    this.isleaf = isleaf;
    }
    }
    package com.sx.mas.beans;
    public class TreeNode {
        private int tid;
        private int pid;
        private String tname;
        private int isleaf;

        public int getTid() {
            return tid;
        }
        public void setTid(int tid) {
            this.tid = tid;
        }
        public int getPid() {
            return pid;
        }
        public void setPid(int pid) {
            this.pid = pid;
        }
        public String getTname() {
            return tname;
        }
        public void setTname(String tname) {
            this.tname = tname;
        }
        public int getIsleaf() {
            return isleaf;
        }
        public void setIsleaf(int isleaf) {
            this.isleaf = isleaf;
        }
    }

    第六步:创建相关的DAO类,代码如下。DAO类将数据库表装保存到Vector对象中。
    复制代码 代码如下:

    package com.sx.mas.beans;
    import java.sql.Connection;
    import java.sql.ResultSet;
    import java.sql.SQLException;
    import java.sql.Statement;
    import java.util.Vector;
    import com.sx.mas.utils.DBConn;
    public class TreeDAO {
    public Vector getTree(){
    Vector vec = new Vector();
    DBConn dbconn = new DBConn();
    Connection conn = dbconn.getConnection();
    try {
    Statement stmt = conn.createStatement();
    ResultSet rs = stmt.executeQuery("select * from trees");
    while(rs.next()){
    TreeNode treenode = new TreeNode();
    treenode.setTid(rs.getInt("tid"));
    treenode.setPid(rs.getInt("pid"));
    treenode.setTname(rs.getString("tname"));
    treenode.setIsleaf(rs.getInt("isleaf"));
    vec.add(treenode);
    }
    } catch (SQLException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
    }
    return vec;
    }
    }
    package com.sx.mas.beans;
    import java.sql.Connection;
    import java.sql.ResultSet;
    import java.sql.SQLException;
    import java.sql.Statement;
    import java.util.Vector;
    import com.sx.mas.utils.DBConn;
    public class TreeDAO {
        public Vector getTree(){
            Vector vec = new Vector();
            DBConn dbconn = new DBConn();
            Connection conn = dbconn.getConnection();
            try {
                Statement stmt = conn.createStatement();
                ResultSet rs = stmt.executeQuery("select * from trees");
                while(rs.next()){
                    TreeNode treenode = new TreeNode();
                    treenode.setTid(rs.getInt("tid"));
                    treenode.setPid(rs.getInt("pid"));
                    treenode.setTname(rs.getString("tname"));
                 treenode.setIsleaf(rs.getInt("isleaf"));
                    vec.add(treenode);
                }
            } catch (SQLException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
            return vec;
        }
    }

    第七步:页面上显示树状结构。在TreeDemo中创建show_tree.jsp页面,代码如下。
    复制代码 代码如下:

    %@ page language="java" import="java.util.*" contentType="text/html; charset=gb2312"%>
    %@ page import="com.sx.mas.beans.*" %>
    !DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
    html>
    head>
    LINK href="css/tree.css" href="css/tree.css" type=text/css rel=stylesheet>
    LINK href="css/css.css" href="css/css.css" rel=stylesheet>
    SCRIPT src="js/tree.js" src="js/tree.js" type=text/javascript>/SCRIPT>
    title>My JSP 'index.jsp' starting page/title>
    meta http-equiv="pragma" content="no-cache">
    meta http-equiv="cache-control" content="no-cache">
    meta http-equiv="expires" content="0">
    meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
    meta http-equiv="description" content="This is my page">
    !--
    link rel="stylesheet" type="text/css" href="styles.css" href="styles.css">
    -->
    /head>
    body onresize="return true;" leftMargin=1 topMargin=1>
    table>
    tr>
    td valign="top">
    TABLE class=table_left_menu cellSpacing=0 cellPadding=0 width="100%"
    background=images/tree_bg.gif border=0>
    TBODY>
    TR>
    TD>
    DIV align=center>IMG height=24 src="images/tree_button.gif" src="images/tree_button.gif"
    width=147 useMap=#Map border=0>
    MAP id=Map name=Map>
    AREA shape="RECT" shape="RECT" coords="16,3,69,15" coords="16,3,69,15" href="javascript:%20d.openAll()" href="javascript:%20d.openAll()">
    AREA shape="RECT" shape="RECT" coords="72,3,131,15" coords="72,3,131,15" href="javascript:%20d.closeAll()" href="javascript:%20d.closeAll()">
    /MAP>
    /DIV>
    /TD>
    /TR>
    /TBODY>
    /TABLE>
    SCRIPT type=text/javascript>
    d = new tree('d','../');
    %
    TreeDAO treedao = new TreeDAO();
    Vector vec =treedao.getTree();
    Iterator iterator = vec.iterator();
    while(iterator.hasNext()){
    TreeNode treenode = (TreeNode)iterator.next();
    if(treenode.getIsleaf()==0){
    %>
    d.add(%=treenode.getTid()%>,%=treenode.getPid()%>,'%=treenode.getTname()%>')
    %}else{%>
    d.add(%=treenode.getTid()%>,%=treenode.getPid()%>,'%=treenode.getTname()%>',parent.getUrlByCatalogId('%=treenode.getTid()%>'),null,'list');
    %}}%>
    document.write(d);
    /SCRIPT>
    /td>
    /tr>
    /table>
    /body>
    /html>
    %@ page language="java" import="java.util.*" contentType="text/html; charset=gb2312"%>
    %@ page import="com.sx.mas.beans.*" %>
    !DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
    html>
    head>
    LINK href="css/tree.css" href="css/tree.css" type=text/css rel=stylesheet>
    LINK href="css/css.css" href="css/css.css" rel=stylesheet>
    SCRIPT src="js/tree.js" src="js/tree.js" type=text/javascript>/SCRIPT>
    title>My JSP 'index.jsp' starting page/title>
        meta http-equiv="pragma" content="no-cache">
        meta http-equiv="cache-control" content="no-cache">
        meta http-equiv="expires" content="0">
        meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
        meta http-equiv="description" content="This is my page">
        !--
        link rel="stylesheet" type="text/css" href="styles.css" href="styles.css">
        -->
    /head>
    body onresize="return true;" leftMargin=1 topMargin=1>
        table>
            tr>
                td valign="top">
    TABLE class=table_left_menu cellSpacing=0 cellPadding=0 width="100%"
    background=images/tree_bg.gif border=0>
    TBODY>
    TR>
    TD>
    DIV align=center>IMG height=24 src="images/tree_button.gif" src="images/tree_button.gif"
    width=147 useMap=#Map border=0>
    MAP id=Map name=Map>
    AREA shape="RECT" shape="RECT" coords="16,3,69,15" coords="16,3,69,15" href="javascript:%20d.openAll()" href="javascript:%20d.openAll()">
    AREA shape="RECT" shape="RECT" coords="72,3,131,15" coords="72,3,131,15" href="javascript:%20d.closeAll()" href="javascript:%20d.closeAll()">
    /MAP>
    /DIV>
    /TD>
    /TR>
    /TBODY>
    /TABLE>
    SCRIPT type=text/javascript>
            d = new tree('d','../');
            %
                TreeDAO treedao = new TreeDAO();
                Vector vec =treedao.getTree();
                Iterator iterator = vec.iterator();
                while(iterator.hasNext()){
                TreeNode treenode = (TreeNode)iterator.next();
                if(treenode.getIsleaf()==0){
            %>
             d.add(%=treenode.getTid()%>,%=treenode.getPid()%>,'%=treenode.getTname()%>')
             %}else{%>
             d.add(%=treenode.getTid()%>,%=treenode.getPid()%>,'%=treenode.getTname()%>',parent.getUrlByCatalogId('%=treenode.getTid()%>'),null,'list');
             %}}%>
    document.write(d);
    /SCRIPT>
                /td>
            /tr>
        /table>
    /body>
    /html>

    第八步:创建一个框架页面,index.html代码如下,和list_default.htm。
    复制代码 代码如下:

    !DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Frameset//EN">
    !-- saved from url=(0203)http://211.142.31.211:8050/cms/content/content_frame.jsp?eafplaceholder=1staffId=11010000ssessionId=A5704FD79B3367C9FBE67681C048CA6Atimestamp=1240457326218secret=649820873menuId=10081labelStyle=DLS -->
    HTML>HEAD>TITLE>/TITLE>
    META http-equiv=Content-Type content="text/html; charset=gb2312">LINK href=""
    type=text/css rel=stylesheet>
    SCRIPT type=text/javascript>
    function getUrlByCatalogId(catalogId) {
    return "TreeDemo/content_add.jsp?catalogId="+catalogId;
    }
    /SCRIPT>
    META content="MSHTML 6.00.2900.3527" name=GENERATOR>/HEAD>FRAMESET border=0
    frameSpacing=0 rows=* frameBorder=0>
    FRAMESET border=0 frameSpacing=1 frameBorder=0 cols=200,*>
    FRAME name=stree src="show_cat_tree.jsp" src="show_tree.jsp" scrolling=yes target="list">
    FRAME name=list src="list_default.htm" src="list_default.htm">NOFRAMES>
    body>
    /body>
    /NOFRAMES>/FRAMESET>/FRAMESET>/HTML>
    !DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Frameset//EN">
    !-- saved from url=(0203)http://211.142.31.211:8050/cms/content/content_frame.jsp?eafplaceholder=1staffId=11010000ssessionId=A5704FD79B3367C9FBE67681C048CA6Atimestamp=1240457326218secret=649820873menuId=10081labelStyle=DLS -->
    HTML>HEAD>TITLE>/TITLE>
    META http-equiv=Content-Type content="text/html; charset=gb2312">LINK href=""
    type=text/css rel=stylesheet>
    SCRIPT type=text/javascript>
    function getUrlByCatalogId(catalogId) {
    return "TreeDemo/content_add.jsp?catalogId="+catalogId;
    }
    /SCRIPT>
    META content="MSHTML 6.00.2900.3527" name=GENERATOR>/HEAD>FRAMESET border=0
    frameSpacing=0 rows=* frameBorder=0>
    FRAMESET border=0 frameSpacing=1 frameBorder=0 cols=200,*>
    FRAME name=stree src="show_cat_tree.jsp" src="show_tree.jsp" scrolling=yes target="list">
    FRAME name=list src="list_default.htm" src="list_default.htm">NOFRAMES>
    body>
    /body>
    /NOFRAMES>/FRAMESET>/FRAMESET>/HTML>


    第九步:运行效果
    备注:如有需要源码的请直接联系QQ398349538。
    您可能感兴趣的文章:
    • Div+CSS+JS树型菜单,可刷新
    • 利用Dojo和JSON建立无限级AJAX动态加载的功能模块树
    • js树形控件脚本代码
    • 利用Ext Js生成动态树实例代码
    • jsTree树控件(基于jQuery, 超强悍)[推荐]
    • 选择TreeView控件的树状数据节点的JS方法(jquery)
    • Extjs入门之动态加载树代码
    • JS无限树状列表实现代码
    • 一个简单的js树形菜单
    • Extjs中ComboBoxTree实现的下拉框树效果(自写)
    • JS无限极树形菜单,json格式、数组格式通用示例
    • 用JS做的简单的可折叠的两级树形菜单
    • 使用js简单实现了tree树菜单
    • 动态加载dtree.js树treeview(示例代码)
    • JS+CSS实现TreeMenu二级树形菜单完整实例
    • JS+CSS实现类似QQ好友及黑名单效果的树型菜单
    • js实现无限级树形导航列表效果代码
    • 纯javascript响应式树形菜单效果
    上一篇:Java 创建cookie和删除cookie
    下一篇:jsp 从web.xml读取连接数据库的参数
  • 相关文章
  • 

    © 2016-2020 巨人网络通讯 版权所有

    《增值电信业务经营许可证》 苏ICP备15040257号-8

    JSP 动态树的实现 JSP,动态,树,的,实现,JSP,