var li = $('<li><span><a href="#">'+list.sname+'</a></span></li>');
页面怎么少了好多</li>

解决方案 »

  1.   

    页面代码是从头执行到尾的 当执行$("#substationinfo").append(li);这段时 页面还没执行到<ul id="substationinfo">当然就找不到substationinfo了 
    建议你吧javascript执行放到<ul id="substationinfo">之后
      

  2.   

    <script type="text/javascript">
            $(function () {
               $.ajax({
        url:"selectAllSubstation.action",    //请求的url地址
        dataType:"json",   //返回格式为json
        async:true,//请求是否异步,默认为异步
        //data:{"id":"value"},    //参数值
        type:"post",   //请求方式
        success:function(data){
            //请求成功时处理
            $.each(data,function(i,list){
    var li = $('<li><span><a href="#">'+list.sname+'</a></span></li>');
    alert($("#substation").html());
    $("#substation").append(li);
    });
        },
        error:function(){
            //请求出错处理
                    $('body').alert({type: 'danger'});
        }
    });
            })
        </script>
      <body>
        <div class="alert alert-info">当前位置<b class="tip"></b>系统设置<b class="tip"></b>人员权限管理</div>
        <div class="container-fluid">
            <div class="row-fluid">
                <div class="span2" id="span2">
                    <ul id="company" class="easyui-tree">
                        <li>
                            <span>北京金鼎砼业集团公司</span>
                            <ul>
                                <li>
                                    <span>分站信息</span>
                                    <ul id="substation">
                                    
                                </ul>
                                </li>
                            </ul>
                        </li>
                    </ul>
                </div>
                <div class="span3">
                 <table id="userTab" border="1" style="width: 60%" class="table table-striped table-bordered">
                 <thead>
                 <tr class="tr_detail">
                 <td>姓名</td>
                 <td>职务</td>
                 </tr>
                 </thead>
                 <tbody>
                <tr>
                    <td><a href="">张三</a></td>
                    <td>管理员</td>
                </tr>
                <tr>
                    <td><a href="">张三</a></td>
                    <td>管理员</td>
                </tr>
                <tr>
                    <td><a href="">张三</a></td>
                    <td>管理员</td>
                </tr>
                <tr>
                    <td><a href="">张三</a></td>
                    <td>管理员</td>
                </tr>
                <tr>
                    <td><a href="">张三</a></td>
                    <td>管理员</td>
                </tr>
                <tr>
                    <td><a href="">张三</a></td>
                    <td>管理员</td>
                </tr>
              </tbody>
              </table>
                 </div>
                 <div class="span4">
                 <ul id="userAuth" class="easyui-tree">
                        <li>
                            <span>北京金鼎砼业集团公司</span>
                            <ul>
                                <li>
                                    <span>用户权限</span>
                                    <ul>
                                        <li>
                                            <span><input type="checkbox" />&nbsp;任务单查看</span>
                                        </li>
                                        <li>
                                            <span><input type="checkbox" />&nbsp;运输单查看</span>
                                        </li>
                                        <li>
                                            <span><input type="checkbox" />&nbsp;运输距离查看</span>
                                        </li>
                                        <li>
                                            <span><input type="checkbox" />&nbsp;财务报表查看</span>
                                        </li>
                                        <li>
                                            <span><input type="checkbox" />&nbsp;人员信息查看</span>
                                        </li>
                                    </ul>
                                </li>
                            </ul>
                        </li>
                    </ul>
                 </div>
            </div>
        </div>
      </body>
      

  3.   

    你qq是多少啊
    这样太慢了   qq直接些,我这里确实出现找不到id的问题
      

  4.   

    清理下浏览器缓存,可能是缓存造成的,如果还不行可以用火狐浏览器firebug调试
      

  5.   

    有没有可能是因为easyui造成的呢   我里面用的数easyui里面的树
      

  6.   

    你看下有js有没有错误。
    <html>
    <head>
    <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js">
    </script>
    <script type="text/javascript">
    $(document).ready(function(){
      $("button").click(function(){
    var obj = { one:1, two:2, three:3, four:4};     
    $.each(obj, function(key, val) {     
        var li = $('<li><span><a href="#">'+key+'--->'+val+'</a></span></li>');
     
      $("#substation").append(li);
            
    });   
         
      });
    });
    </script>
    </head>
    <body>
    <button>append</button>
    <ul id="substation">
    <li>Coffee</li>
    </ul>
    </body>
    </html>
      

  7.   

    应该是easyui的问题,我alert了最顶层的父节点,下面是不存在id叫substation的ul!闹心
      

  8.   

    楼主似乎是要加载一个easyui的tree,其实可以通过ajax返回json实现的
    这是我以前做过的例子,希望对你有帮助
    这是我的博客http://blog.csdn.net/chenmoonhan/article/details/11808695
    需要你改一下哦,不清楚的可以问我。
      

  9.   

    如果用一些框架的组件 还是使用框架的事件比较好  因为单纯的使用JQ/JS去捕获框架的事件经常会出现问题   因为框架加载顺序你不能掌握  往往会出现“找不到对象”的情况。。   建议找找easyui的API  说不定有许多更方便的法子实现