java web前端easyui（layout+tree+双tabs）布局+树+2个选项卡tabs

1.列出要实现的样式：

2.实现的代码：

分三大部分：

1）：页面主体部分：mian.vm

<html>
<head>
  <title>Ks UI</title>
  #parse("ui:include")
  <style>
      body{padding:0;margin:0}
  </style>
  <script>
      $(document).ready(function(){
        var tabs_content = $("#content");
        tabs_content.tabs({
            border:false,
            fit:true
        });
        
        //添加tab页面
        function addTabs(tab){
            tabs_content.tabs("add",{
                title:tab.text,
                closable:true,
                content : '<iframe frameborder="0" scrolling="auto" width="100%" height="100%" src="${path}'+tab.url+'"></iframe>'
            });
        }
        
        $("#tree_menu").tree({
            onClick: function(node){
                console.log(node);
                if(!tabs_content.tabs('exists',node.text)){
                    if(node.url){
                        addTabs(node);
                    }
                }else{
                    tabs_content.tabs("select",node.text);
                }
            }
        });
        
        //添加欢迎页面
        addTabs({
            text:'欢迎使用Ks UI',
            url:'/cn/com/ksplatform/ui/demo/main/views/fcomponents/welcome.vm'
        });
    });
  </script>
</head>
<body class="easyui-layout">
        <div data-options="region:'north'" style="height:70px"></div>
        <div data-options="region:'west',split:true" title="菜单" style="240px;">
            <ul class="easyui-tree" id="tree_menu" data-options="url:'$path/ui/resource/demo/data/tree.json',method:'get',animate:true"></ul>
        </div>
        <div data-options="region:'center'">
            <div  class="easyui-tabs" id="content" >
            </div>
        </div>
</body>
</html>

说明：这部分代码负责完成效果页面的整体框架和效果页面center上面的tabs，重点看tabs是如何实现的（代码<script>函数部分）

2）：center中竖着的tabs部分：

就是index.vm文件

<html>
<head>
  <title></title>
  #parse("ui:include")
  <script>
      $(document).ready(function(){
        $("#tt").tabs({
            tabPosition:'left',
            fit:true,
            onSelect:function(title,index){
                open(index);
                
            }
        });
        
        function open(index){
        
            var tab = $("#tt").tabs("getTab",index);
            //console.log(tab);
            //console.log(tab[0]);
            //不重复打开 
            if(tab.attr("opend")){
                return;            
            }
            var url = tab.panel("options").url;
            //var op=tab.panel("options");
            //console.log(op);
            if(url){
                $(tab[0]).html('<iframe frameborder="0" scrolling="auto" width="100%" height="100%" src="${path}'+url+'"></iframe>');
                tab.attr("opend",true);
            }
            
        }
        
        open(0);
        
    });
  </script>
</head>
<body>

<div id="tt" class="easyui-tabs">
   <div title="基本实现" style="padding:10px;" data-options="url:'/cn/com/ksplatform/ui/demo/main/views/fcomponents/panel/base.vm'">
   </div>
   <div title="面板工具栏" style="padding:10px;" data-options="url:'/cn/com/ksplatform/ui/demo/main/views/fcomponents/panel/mbgjl.vm'">
   </div>
   <div title="自定义工具栏" style="padding:10px;" data-options="url:'/cn/com/ksplatform/ui/demo/main/views/fcomponents/panel/zdygjl.vm'">
   </div>
    <div title="面板页脚" style="padding:10px;" data-options="url:'/cn/com/ksplatform/ui/demo/main/views/fcomponents/panel/mbyj.vm'">
   </div>
   <div title="加载面板内容" style="padding:10px;" data-options="url:'/cn/com/ksplatform/ui/demo/main/views/fcomponents/panel/jzmbnr.vm'">
   </div>
   <div title="面板嵌套" style="padding:10px;" data-options="url:'/cn/com/ksplatform/ui/demo/main/views/fcomponents/panel/mbqt.vm'">
   </div>
   <div title="流式面板" style="padding:10px;" data-options="url:'/cn/com/ksplatform/ui/demo/main/views/fcomponents/panel/lsmb.vm'">
   </div>
   <div title="API" style="padding:10px;" data-options="url:'/cn/com/ksplatform/ui/demo/main/views/fcomponents/panel/api.vm'">
   </div>
</div>
</body>
</html>

3）：竖着的tabs中的每个小窗口的示例文件：base.vm

<html>
<head>
  <title></title>
  #parse("ui:include")
</head>
<body>
    <h2>基本面板Basic Panel</h2>
    <p>面板是其他组件或元素的容器</p>
    <div style="margin:20px 0 10px 0;">
        <a href="#" class="easyui-linkbutton" onclick="javascript:$('#p').panel('open')">打开</a>
        <a href="#" class="easyui-linkbutton" onclick="javascript:$('#p').panel('close')">关闭</a>
    </div>
    <div id="p" class="easyui-panel" title="Basic Panel" style="700px;height:200px;padding:10px;">
        <p style="font-size:14px">jQuery EasyUI framework helps you build your web pages easily.</p>
        <ul>
            <li>easyui is a collection of user-interface plugin based on jQuery.</li>
            <li>easyui provides essential functionality for building modem, interactive, javascript applications.</li>
            <li>using easyui you don't need to write many javascript code, you usually defines user-interface by writing some HTML markup.</li>
            <li>complete framework for HTML5 web page.</li>
            <li>easyui save your time and scales while developing your products.</li>
            <li>easyui is very easy but powerful.</li>
        </ul>
    </div>
</body>
</html>

附上：mian.vm中用到的tree.json:

[{   
    "text":"基础组件",
    "children":[
        {"text":"面板Panel","url":"/cn/com/ksplatform/ui/demo/main/views/fcomponents/panel/index.vm"},
        {"text":"数据表格DataGrid","url":"/cn/com/ksplatform/ui/demo/main/views/fcomponents/datagrid/index.vm"},
        {"text":"树形数据表格TreeGrid","url":"/cn/com/ksplatform/ui/demo/main/views/fcomponents/treegrid/index.vm"},
        {"text":"分割按钮SplitButton","url":"/cn/com/ksplatform/ui/demo/main/views/fcomponents/splitbutton/index.vm"},
        {"text":"表单Form","url":"/cn/com/ksplatform/ui/demo/main/views/fcomponents/form/index.vm"},
        {"text":"下拉列表框ComboBox","url":"/cn/com/ksplatform/ui/demo/main/views/fcomponents/combobox/index.vm"},
        {"text":"数字文本框微调NumberSpinner","url":"/cn/com/ksplatform/ui/demo/main/views/fcomponents/numberspinner/index.vm"},
        {"text":"时间框微调TimeSpinner","url":"/cn/com/ksplatform/ui/demo/main/views/fcomponents/timespinner/index.vm"},
        {"text":"窗口Window","url":"/cn/com/ksplatform/ui/demo/main/views/fcomponents/window/index.vm"},
        {"text":"放置Droppable","url":"/cn/com/ksplatform/ui/demo/main/views/fcomponents/droppable/index.vm"},
        {"text":"手风琴菜单Accordion","url":"/cn/com/ksplatform/ui/demo/main/views/fcomponents/accordion/index.vm"},
        {"text":"数据列表DataList","url":"/cn/com/ksplatform/ui/demo/main/views/fcomponents/datalist/index.vm"},
        {"text":"链接按钮LinkButton","url":"/cn/com/ksplatform/ui/demo/main/views/fcomponents/linkbutton/index.vm"},
        {"text":"分页Pagination","url":"/cn/com/ksplatform/ui/demo/main/views/fcomponents/pagination/index.vm"},
        {"text":"文本框TextBox","url":"/cn/com/ksplatform/ui/demo/main/views/fcomponents/textbox/index.vm"},
        {"text":"数据表格下拉框ComboGrid","url":"/cn/com/ksplatform/ui/demo/main/views/fcomponents/combogrid/index.vm"},
        {"text":"日历Calendar","url":"/cn/com/ksplatform/ui/demo/main/views/fcomponents/calendar/index.vm"},
        {"text":"日期时间框微调DateTimeSpinner","url":"/cn/com/ksplatform/ui/demo/main/views/fcomponents/datatimespinner/index.vm"},
        {"text":"对话框Dialog","url":"/cn/com/ksplatform/ui/demo/main/views/fcomponents/dialog/index.vm"},
        {"text":"调整大小Resizable","url":"/cn/com/ksplatform/ui/demo/main/views/fcomponents/resizable/index.vm"},
        {"text":"选项卡Tabs","url":"/cn/com/ksplatform/ui/demo/main/views/fcomponents/tabs/index.vm"},
        {"text":"属性网格PropertyGrid","url":"/cn/com/ksplatform/ui/demo/main/views/fcomponents/propertygrid/index.vm"},
        {"text":"菜单Menu","url":"/cn/com/ksplatform/ui/demo/main/views/fcomponents/menu/index.vm"},
        {"text":"进度条ProgressBar","url":"/cn/com/ksplatform/ui/demo/main/views/fcomponents/progressbar/index.vm"},
        {"text":"文件框FileBox","url":"/cn/com/ksplatform/ui/demo/main/views/fcomponents/filebox/index.vm"},
        {"text":"树形下拉框ComboTree","url":"/cn/com/ksplatform/ui/demo/main/views/fcomponents/combotree/index.vm"},
        {"text":"日期框DateBox","url":"/cn/com/ksplatform/ui/demo/main/views/fcomponents/datebox/index.vm"},
        {"text":"滑动条Slider","url":"/cn/com/ksplatform/ui/demo/main/views/fcomponents/slider/index.vm"},
        {"text":"消息框Messager","url":"/cn/com/ksplatform/ui/demo/main/views/fcomponents/messager/index.vm"},
        {"text":"提示框Tooltip","url":"/cn/com/ksplatform/ui/demo/main/views/fcomponents/tooltip/index.vm"},
        {"text":"布局Layout","url":"/cn/com/ksplatform/ui/demo/main/views/fcomponents/layout/index.vm"},
        {"text":"树Tree","url":"/cn/com/ksplatform/ui/demo/main/views/fcomponents/tree/index.vm"},
        {"text":"菜单按钮MenuButton","url":"/cn/com/ksplatform/ui/demo/main/views/fcomponents/menubutton/index.vm"},
        {"text":"搜索框SearchBox","url":"/cn/com/ksplatform/ui/demo/main/views/fcomponents/searchbox/index.vm"},
        {"text":"自定义下拉框Combo","url":"/cn/com/ksplatform/ui/demo/main/views/fcomponents/combo/index.vm"},
        {"text":"数字文本框NumberBox","url":"/cn/com/ksplatform/ui/demo/main/views/fcomponents/numberbox/index.vm"},
        {"text":"日期时间框DateTimeBox","url":"/cn/com/ksplatform/ui/demo/main/views/fcomponents/datetimebox/index.vm"},
        {"text":"验证框ValidateBox","url":"/cn/com/ksplatform/ui/demo/main/views/fcomponents/validatebox/index.vm"},
        {"text":"拖动Draggable","url":"/cn/com/ksplatform/ui/demo/main/views/fcomponents/draggable/index.vm"}
    ]
},{   
    "text":"组合组件",
    "children":[
    ]
},{   
    "text":"功能组件",
    "children":[
        {"text":"分页数据列表"}
    ]
}]

这篇博文的目的主要是学习，各个main.vm和index.vm中<script></script>间函数的写法，如何能熟练正确的使用easyui各个模块的属性和方法：

其中通过chrome浏览器的console平台，借助console.log()方法，打印出index.vm文件中比较难理解的几个变量值：onSelect:function(title,index)中的title和index分别是tabs中各个子窗口的标题和索引号，索引号从0开始；

var tab = $("#tt").tabs("getTab",index); 打印出这里的var tab变量是整个大的页面；

console.log(tab[0]); 注意console输出的这个tab[0]恰好是tabs中选中的子窗口页面；

var url = tab.panel("options").url 中的url就是：/cn/com/ksplatform/ui/demo/main/views/fcomponents/panel/base.vm，也就是在index.vm中每个子窗口的地址；

easyui中tree模块的属性：

$("#tree_menu").tree({
onClick: function(node){
console.log(node);
if(!tabs_content.tabs('exists',node.text)){
if(node.url){
addTabs(node);
}
}else{
tabs_content.tabs("select",node.text);
}
}
});

这个函数中的node是什么呢？

这点可以看easyui中tree的api（当然也可以直接console输出）：

每个节点都具备以下属性：

id：节点ID，对加载远程数据很重要。
text：显示节点文本。
state：节点状态，'open' 或 'closed'，默认：'open'。如果为'closed'的时候，将不自动展开该节点。
checked：表示该节点是否被选中。
attributes: 被添加到节点的自定义属性。
children: 一个节点数组声明了若干节点。

前端还是经验的积累，所以多看api！！，多参加实践！！

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原文地址：https://www.cnblogs.com/zhangshitong/p/4941089.html