39、chen框架 - HelloWorld开发者社区

由于后台使用了chen框架，所以代码不能完全列出，可以到http://git.oschina.net/eternal_rider/chen下载项目，运行后，即可看到菜单效果级管理。

示例框架中写了一个jquery菜单插件实现，可以使用存html代码+样式使用，也可以给出json格式数据，以****jquery插件方式。

对应json格式，我写了示例代码，从数据库表总读取记录，转成json。sql只要select * from 表 order by 父id，即按照父编号排序，这样生成html时，先生成根节点，然后子节点，孙子节点。。。这样。我也做后台管理，可以在后台添加编辑，前台自动展现，以后会加授权功能。

先看下效果，然后在看代码。

39、chen框架

HTML-scheme:

<ul id="menu">
    <li><a href="#">chen框架介绍</a></li>
    <li>
        <a href="#">设计文档</a>
        <ul>
            <li><a href="#">视图层</a></li>
            <li><a href="#">控制层</a></li>
            <li><a href="#">模型层</a></li>
            <li><a href="#">仓储层</a></li>
        </ul>
    </li>
    <li><a href="#">示例项目</a></li>
    <li><a href="#">后台管理</a></li>
</ul>

css样式**

#menu
{
    width: 100%;
    margin: 0;
    padding: 10px 0 0 0;
    list-style: none;  
    background: #111;
    background: -moz-linear-gradient(#444, #111); 
    background: -webkit-gradient(linear,left bottom,left top,color-stop(0, #111),color-stop(1, #444));    
    background: -webkit-linear-gradient(#444, #111);    
    background: -o-linear-gradient(#444, #111);
    background: -ms-linear-gradient(#444, #111);
    background: linear-gradient(#444, #111);
    -moz-border-radius: 50px;
    border-radius: 50px;
    -moz-box-shadow: 0 2px 1px #9c9c9c;
    -webkit-box-shadow: 0 2px 1px #9c9c9c;
    box-shadow: 0 2px 1px #9c9c9c;
}

#menu li
{
    float: left;
    padding: 0 0 10px 0;
    position: relative;
    line-height: 0;
}

#menu a 
{
    float: left;
    height: 25px;
    padding: 0 25px;
    color: #999;
    text-transform: uppercase;
    font: bold 12px/25px Arial, Helvetica;
    text-decoration: none;
    text-shadow: 0 1px 0 #000;
}

#menu li:hover > a
{
    color: #fafafa;
}

*html #menu li a:hover /* IE6 */
{
    color: #fafafa;
}

#menu li:hover > ul
{
    display: block;
}

/* Sub-menu */

#menu ul
{
    list-style: none;
    margin: 0;
    padding: 0;    
    display: none;
    position: absolute;
    top: 35px;
    left: 0;
    z-index: 99999;    
    background: #444;
    background: -moz-linear-gradient(#444, #111);
    background: -webkit-gradient(linear,left bottom,left top,color-stop(0, #111),color-stop(1, #444));
    background: -webkit-linear-gradient(#444, #111);    
    background: -o-linear-gradient(#444, #111);    
    background: -ms-linear-gradient(#444, #111);    
    background: linear-gradient(#444, #111);
    -moz-box-shadow: 0 0 2px rgba(255,255,255,.5);
    -webkit-box-shadow: 0 0 2px rgba(255,255,255,.5);
    box-shadow: 0 0 2px rgba(255,255,255,.5);    
    -moz-border-radius: 5px;
    border-radius: 5px;
}

#menu ul ul
{
  top: 0;
  left: 150px;
}

#menu ul li
{
    float: none;
    margin: 0;
    padding: 0;
    display: block;  
    -moz-box-shadow: 0 1px 0 #111111, 0 2px 0 #777777;
    -webkit-box-shadow: 0 1px 0 #111111, 0 2px 0 #777777;
    box-shadow: 0 1px 0 #111111, 0 2px 0 #777777;
}

#menu ul li:last-child
{   
    -moz-box-shadow: none;
    -webkit-box-shadow: none;
    box-shadow: none;    
}

#menu ul a
{    
    padding: 10px;
    height: 10px;
    width: 130px;
    height: auto;
    line-height: 1;
    display: block;
    white-space: nowrap;
    float: none;
    text-transform: none;
}

*html #menu ul a /* IE6 */
{    
    height: 10px;
}

*:first-child+html #menu ul a /* IE7 */
{    
    height: 10px;
}

#menu ul a:hover
{
    background: #0186ba;
    background: -moz-linear-gradient(#04acec,  #0186ba);    
    background: -webkit-gradient(linear, left top, left bottom, from(#04acec), to(#0186ba));
    background: -webkit-linear-gradient(#04acec,  #0186ba);
    background: -o-linear-gradient(#04acec,  #0186ba);
    background: -ms-linear-gradient(#04acec,  #0186ba);
    background: linear-gradient(#04acec,  #0186ba);
}

#menu ul li:first-child > a
{
    -moz-border-radius: 5px 5px 0 0;
    border-radius: 5px 5px 0 0;
}

#menu ul li:first-child > a:after
{
    content: '';
    position: absolute;
    left: 30px;
    top: -8px;
    width: 0;
    height: 0;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-bottom: 8px solid #444;
}

#menu ul ul li:first-child a:after
{
    left: -8px;
    top: 12px;
    width: 0;
    height: 0;
    border-left: 0;    
    border-bottom: 5px solid transparent;
    border-top: 5px solid transparent;
    border-right: 8px solid #444;
}

#menu ul li:first-child a:hover:after
{
    border-bottom-color: #04acec; 
}

#menu ul ul li:first-child a:hover:after
{
    border-right-color: #04acec; 
    border-bottom-color: transparent;     
}


#menu ul li:last-child > a
{
    -moz-border-radius: 0 0 5px 5px;
    border-radius: 0 0 5px 5px;
}

/* Clear floated elements */
#menu:after 
{
    visibility: hidden;
    display: block;
    font-size: 0;
    content: " ";
    clear: both;
    height: 0;
}

* html #menu             { zoom: 1; } /* IE6 */
*:first-child+html #menu { zoom: 1; } /* IE7 */
</style>

<!-- AdPacks -->
<style>
#adpacks-wrapper{font-family: Arial, Helvetica;width:280px;position: fixed;_position:absolute;bottom: 0;right: 20px;z-index: 9999;background: #eaeaea;padding: 10px;-moz-box-shadow: 0 0 15px #444;-webkit-box-shadow: 0 0 15px #444;box-shadow: 0 0 15px #444;}
body .adpacks{background:#fff;padding:15px;margin:15px 0 0;border:3px solid #eee;}
body .one .bsa_it_ad{background:transparent;border:none;font-family:inherit;padding:0;margin:0;}
body .one .bsa_it_ad .bsa_it_i{display:block;padding:0;float:left;margin:0 10px 0 0;}
body .one .bsa_it_ad .bsa_it_i img{padding:0;border:none;}
body .one .bsa_it_ad .bsa_it_t{padding: 0 0 6px 0; font-size: 11px;}
body .one .bsa_it_p{display:none;}
body #bsap_aplink,body #bsap_aplink:hover{display:block;font-size:9px;margin: -15px 0 0 0;text-align:right;}
body .one .bsa_it_ad .bsa_it_d{font-size: 11px;}
body .one{overflow: hidden}

html方式是，使用以上css+html代码即可生成菜单。**

一下为jquery插件方式：

menu.js

 (function(jQuery){
    jQuery.fn.menu=function(data){
        if(typeof data=="string"){
            data = eval("("+data+")");
        }
        var jQuerythis=jQuery(this);
        var jQuerycoldrop=jQuery(document.createElement("ul")).attr("id","menu");
        var ids=jQuerythis.attr("id");
        jQuerythis.append(jQuerycoldrop);
        
        for(var i=0;i<data.length;i++){
            var n = data[i];
            var jQueryitem=jQuery(document.createElement("li"));
            if(n.pid==0){
                jQuerycoldrop.append(jQueryitem);
                jQueryitem.html("<a href=\"javascript:void(0);\" onClick=\"goUrl(\'"+n.name+"\',\'"+n.mode+"\',\'"+n.url+"\')\">"+n.name+"</a>").attr({"id":"col_"+ids+"_"+n.id});
            }else{
                if(jQuery("#col_"+ids+"_"+n.pid).find("ul").length<=0){
                    jQuery("#col_"+ids+"_"+n.pid).append("<ul></ul>");
                    jQuery("#col_"+ids+"_"+n.pid).find("ul:first").append(jQueryitem);
                    jQueryitem.html("<a href=\"javascript:void(0);\" onClick=\"goUrl(\'"+n.name+"\',\'"+n.mode+"\',\'"+n.url+"\')\">"+n.name+"</a>").attr({"id":"col_"+ids+"_"+n.id});
                }else{
                    jQuery("#col_"+ids+"_"+n.pid).find("ul:first").append(jQueryitem);
                    jQueryitem.html("<a href=\"javascript:void(0);\" onClick=\"goUrl(\'"+n.name+"\',\'"+n.mode+"\',\'"+n.url+"\')\">"+n.name+"</a>").attr({"id":"col_"+ids+"_"+n.id});
                }
            }            
        }
    }
 })(jQuery);
 function goUrl(title,mode,iurl){
    if(iurl == ""){
        return;
    }
       var h = window.screen.height;
       var w = window.screen.width;
       if(mode == "modal"){
           window.showModalDialog(iurl,{name:title},"dialogWidth="+w+";dialogHeight="+h+";resizable=true;location=no;toolbar=no;titlebar=no");
       }else if(mode == "dialog"){
           //open div
       }else if(mode == "_blank"){
           
       }else{
           
       }
 }

goUrl函数，可以自己修改为，任意的展现方式，如更新iframe等。

插件方式例子代码：

<!doctype html>
<html>
<head>
    <meta http-equiv="content-type" content="text/html;charset=utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <title>jquery菜单插件</title>
    <link type="text/css" href="resources/menu/menu.css" rel="stylesheet" />
    <script type="text/javascript" src="resources/jquery.min.js"></script>
    <script type="text/javascript" src="resources/menu/menu.js"></script>
    <script type="text/javascript">
    jQuery(function(){
        //jQuery("#mymenu").menu('json数组')，下面为从后台获得
        jQuery("#mymenu").menu('${sessionScope.UserInfo.MenuJson}');
        });
    </script>
</head>
</head>
<body>
    <div id="mymenu" class="mainMenu"></div>
</body>
</html>

上面为了jquery库布和其他库冲突我没用使用$，而是用JQuery。

json格式

[{"id":"1","icon":"","name":"chen框架介绍","pid":"0","leaf":"1","url":"pages/home.jsp","mode":"modal"},{"id":"3f076f9aa6d74220b1f86b33ffb68387","icon":null,"name":"访问日志","pid":"e50d1c568d19412ca1a97d8bdc01629d","leaf":"1","url":"","mode":"modal"},{"id":"2","icon":"","name":"设计文档","pid":"0","leaf":"0","url":"","mode":"modal"},{"id":"79fe85544ed34957a0a638899ba5709e","icon":null,"name":"模块访问日志","pid":"e50d1c568d19412ca1a97d8bdc01629d","leaf":"1","url":"","mode":"modal"},{"id":"3","icon":"","name":"视图层","pid":"2","leaf":"1","url":"","mode":"modal"},{"id":"688881325bd941dc860afd5437c212a6","icon":null,"name":"操作日志","pid":"e50d1c568d19412ca1a97d8bdc01629d","leaf":"1","url":"","mode":"modal"},{"id":"4","icon":"","name":"控制层","pid":"2","leaf":"1","url":"","mode":"modal"},{"id":"e50d1c568d19412ca1a97d8bdc01629d","icon":null,"name":"日志管理","pid":"6","leaf":"0","url":"directory","mode":"modal"},{"id":"6","icon":"","name":"后台管理","pid":"0","leaf":"0","url":"","mode":"modal"},{"id":"7","icon":"","name":"用户管理","pid":"6","leaf":"1","url":"","mode":"modal"},{"id":"8","icon":"","name":"角色管理","pid":"6","leaf":"1","url":"","mode":"modal"},{"id":"9","icon":"","name":"菜单管理","pid":"6","leaf":"1","url":"pages/manager/menu/menuManager.jsp","mode":"modal"},{"id":"10","icon":"","name":"教程分类","pid":"6","leaf":"1","url":"","mode":"modal"},{"id":"11","icon":"","name":"教程分类","pid":"10","leaf":"1","url":"","mode":"modal"},{"id":"12","icon":"","name":"教程管理","pid":"10","leaf":"1","url":"","mode":"modal"}]

{"id":"1","icon":"","name":"chen框架介绍","pid":"0","leaf":"1","url":"pages/home.jsp","mode":"modal"}

id：菜单的编号

icon：菜单图标（这个我还没有加，过几天加上）

name:菜单名称

pid:菜单的父级编号

leaf:是否为叶子节点，即是否目录（这个在后台管理中用到了，如果你不用后台管理，可以忽略）

url:菜单地址

mode:菜单展现方式，如弹出div，弹出新窗口等，具体见goUrl函数。

菜单数据库表，一般结构如下：

39、chen框架

后台管理，java

package my.action;

import java.util.Map;

import my.model.MenuModel;
import chen.ioc.Chen;
import chen.view.Renderer;
import chen.view.TextRenderer;

public class MenuAction {
    
    public Renderer list(Map<String,Object> args){
        MenuModel mmodel = Chen.container.get(MenuModel.class);
        String jsonStr = mmodel.loadMenuById(args);
        return new TextRenderer(jsonStr);
    }
    
    public Renderer add(Map<String,Object> args){
        MenuModel mmodel = Chen.container.get(MenuModel.class);
        int n = mmodel.add(args);
        return new TextRenderer(String.valueOf(n));
    }
    
    public Renderer edit(Map<String,Object> args){
        MenuModel mmodel = Chen.container.get(MenuModel.class);
        int n = mmodel.edit(args);
        return new TextRenderer(String.valueOf(n));
    }
    
    public Renderer delete(Map<String,Object> args){
        MenuModel mmodel = Chen.container.get(MenuModel.class);
        int n = mmodel.delete(args);
        return new TextRenderer(String.valueOf(n));
    }
}





package my.model;

import java.util.List;
import java.util.Map;

import net.sf.json.JSONArray;
import chen.util.DbUtil;

public class MenuModel{
    
    public int add(Map<String,Object> args) {
        try {
            return DbUtil.dao.save(this, args);
        }catch (Exception e) {
            e.printStackTrace();
            return 0;
        }
    }
    
    public int edit(Map<String,Object> args) {
        try {
            return DbUtil.dao.update(this, args, "id=#id#");
        }catch (Exception e) {
            e.printStackTrace();
            return 0;
        }
    }
    public int delete(Map<String,Object> args) {
        try {
            return DbUtil.dao.delete(this, args, "id=#id#");
        }catch (Exception e) {
            e.printStackTrace();
            return 0;
        }
    }
    
    public String loadAllMenu(Map<String,Object> args) {
        return this.loadMenu(selectAllMenu,null);
    }
    
    public String loadMenuById(Map<String,Object> args) {
        if(args.get("id") == null){
            args.put("id","0");
        }
        return this.loadMenu(selectMenuById,args);
    }
    
    public String loadMenu(String sql,Map<String,Object> args) {
        try {
            List<Map<String, Object>> menus = null;
            if(args == null){
                menus = DbUtil.dao.query(sql);
            }else{
                menus = DbUtil.dao.query(sql,args);
            }
            return JSONArray.fromObject(menus).toString();
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
    }
    
    
    private String selectAllMenu = "select id,pid,name,url,leaf,icon,'modal' mode from menu order by ord asc";
    private String selectMenuById = "select id,pid,name,url,leaf,icon,'modal' mode,decode(leaf,'1','','closed') state from menu where pid=#id# order by ord asc";
}

jsp

<%@ page language="java" pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://my.oschina.net/eternal/chen" %>
<!doctype html>
<html>
<head>
<base href="${c:base()}">
    <meta http-equiv="content-type" content="text/html;charset=utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <title>菜单管理</title>
    <%@ include file="/pages/manager/lib.jsp"%>
<script type="text/javascript">
var index = 0;
$(function(){
    $('#MenuGrid').treegrid({
                nowrap: false,
                collapsible:true,
                fit:true,
                title:"菜单管理",
                rownumbers: true,
                animate:true,
                url:'ty/menu/list/',
                idField:'id',
                treeField:'name',
                columns:[[
                    {field:'name',title:'菜单名称',width:300},
                    {field:'url',title:'访问路径',width:400}
                ]],
        onContextMenu: function(e,row){
            e.preventDefault();
            $(this).treegrid('unselectAll');
            $(this).treegrid('select', row.id);
            if(row.leaf=='1'){
                $("#mm_add_menu").attr("disabled","disabled");
                $("#mm_add_dir").attr("disabled","disabled");
            }else{
                $("#mm_add_menu").removeAttr("disabled");
                $("#mm_add_dir").removeAttr("disabled");
            }
            $('#cm').menu('show', {
                left: e.pageX,
                top: e.pageY
            });
        },
        onLoadSuccess:function (row){
            if(index++<1){
                $('#MenuGrid').treegrid('expandAll');
            }
        }
    });
});
function getSelected(){
    return $('#MenuGrid').treegrid('getSelected');
}

function add(flag){
    var node = getSelected();
    if(node.leaf == '1'){
        $.messager.alert('警告', '不能在功能节点上添加！', 'warning');
        return;
    }
    if(flag == 1){
        $('#win').load('pages/manager/menu/moduleCreator.jsp',null,function(){
            $(this).window({title: '&nbsp;添加目录',iconCls:'icon-add'});
            $(this).window('open');
        });
    }else{
        $('#win').load('pages/manager/menu/menuCreator.jsp?fid=aq1',null,function(){
            $(this).window({title: '&nbsp;添加菜单',iconCls:'icon-add'});
            $(this).window('open');
        });
    }
}

function dele(){
    var node = getSelected();
    var b = $('#MenuGrid').treegrid('isLeaf', node.target);
    if(b){
        $.messager.confirm('信息', '是否确认删除[' + node.name + ']？', function(r){
            if(r){
                $.post('ty/menu/delete/',{id:node.id},function (data){
                    if(data >= 1){
                        $('#MenuGrid').treegrid('reload',node.pid);
                    }else{
                        $.messager.alert('错误', '删除失败，请联系管理员！', 'error');
                    }
                });
            }
        });
    }else{
        $.messager.alert('警告', '请先删除子节点！', 'warning');
    }
}

function edit(){
    var node = getSelected();
        if(node.leaf==1){
            $('#win').load('pages/manager/menu/menuEditor.jsp',{id:node.id},function(){
                $(this).window({title: '&nbsp;编辑菜单',iconCls:'icon-add'});
                $(this).window('open');
            });
        }else{
            $('#win').load('pages/manager/menu/moduleEditor.jsp',null,function(){
                $(this).window({title: '&nbsp;编辑目录',iconCls:'icon-add'});
                $(this).window('open');
            });
        }
}
</script>
</head>
    <body topmargin="0" leftmargin="1" rightmargin="1">
            <table id="MenuGrid"></table>
            <div id="cm" class="easyui-menu" style="width: 120px;">
                <div id="mm_add_menu" onclick="add()" iconCls="icon-add">
                    添加模块
                </div>
                <div id="mm_add_dir" onclick="add()" iconCls="icon-add">
                    添加功能
                </div>
                <div class="menu-sep"></div>
                <div id="mm_dele" onclick="dele()" iconCls="icon-remove">
                    删除
                </div>
                <div id="mm_edit" onclick="edit()" iconCls="icon-edit">
                    编辑
                </div>
            </div>
        <div id="win" style="width: 650px; height: 300px; padding: 10px;" closed="true" shadow="true" resizable="false" collapsible="true" minimizable="false" maximizable="false"></div>
    </body>
</html>

由于使用了chen框架，所以代码不能完全列出，可以到http://git.oschina.net/eternal_rider/chen下载项目，运行后，即可看到菜单效果级管理（没有完全开发完。）
**