ext 分页求助 数据加载不进

Question

ext代码如下  
<script type="text/javascript" language="javascript">
            Ext.onReady(function(){
                var RowNumber=new Ext.grid.RowNumberer(); //定义序号
                var CheckNumber=new Ext.grid.CheckboxSelectionModel();//定义CheckBox选框
                var List_Model=new Ext.grid.ColumnModel({  //定义行模型
                    columns:[
                        RowNumber,
                        CheckNumber,
                        { header:"标题",dataIndex:"l_title" },
                        { header:"内容",dataIndex:"l_content" }
                    ],
              
                    defaults:{
                        sortable:true,
                        resizable:true,
                        width:100,
                        align:"center"
                    }
                });
                var proxy=new Ext.data.ScriptTagProxy({  //建立代理
                    url:"http://localhost:8084/EXT/data.jsp"
                })
                var record = new Ext.data.Record.create( //定义记录
                [
                    {name:"l_title",type:"string",mapping:"l_title"},
                    {name:"l_content",type:"string",mapping:"l_content"}                ]);                var reader=new Ext.data.JsonReader({ //建立JsonReader
                    totalProperty:"total",
                    root:"jsonlist",
                    remoteSort: true
                    //idProperty:"id"
                }, record);
                var store=new Ext.data.JsonStore({ //建立数据
                    proxy:proxy,
                    reader:reader
                })
                store.load({params:{start:0,limit:3}});//加载数据
                var bar=new Ext.PagingToolbar({
                    store:store,
                    pageSize:3,
                    dispalyInfo:true,
                    displayMsg:"Page{0}-{1} Total:{2}",
                    emptyMsg:"没有记录"
                });
                var grid =new Ext.grid.GridPanel({
                    title:"the first paging",
                    trackMouseOver:false,
                    loadMask: {msg:'正在加载数据，请稍侯……'},
                    autoHeight:true,
                    cm:List_Model,
                    sm:CheckNumber,
                    store:store,
                    bbar:bar,
                    renderTo:"test"
                });
                     store.load({params:{start:0,limit:3}});//加载数据
            })
   url:"http://localhost:8084/EXT/data.jsp" 生成的json：
{"total":8,"jsonlist":[{"l_title":"规则引擎基础","l_content":"规则引擎基础"},{"l_title":"规则引擎应用","l_content":"规则引擎应用"},{"l_title":"java基础","l_content":"java基础"},{"l_title":"eclipse","l_content":"eclipse"},{"l_title":"VisualRules基础","l_content":"VisualRules基础"},{"l_title":"VisualRules应用","l_content":"VisualRules应用"},{"l_title":"问题讨论","l_content":"问题讨论"},{"l_title":"Drools","l_content":"Drools"}]} 
js提示的错误：
网页错误详细信息用户代理: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; GTB6.3; .NET CLR 2.0.50727; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729)
时间戳: Mon, 2 Aug 2010 01:29:36 UTC
消息: 缺少 ';'
行: 1
字符: 9
代码: 0
URI: http://localhost:8084/EXT/data.jsp?start=0&limit=3&_dc=1280712570968&callback=stcCallback1002小弟刚研究ext那位高手能够指教一下，帮忙查查问题。
          

Answer 1

var proxy=new Ext.data.ScriptTagProxy({ //建立代理
  url:"http://localhost:8084/EXT/data.jsp"
  });//加；
  var record = new Ext.data.Record.create( //定义记录
  [
  {name:"l_title",type:"string",mapping:"l_title"},
  {name:"l_content",type:"string",mapping:"l_content"}  ]);  var reader=new Ext.data.JsonReader({ //建立JsonReader
  totalProperty:"total",
  root:"jsonlist",
  remoteSort: true
  //idProperty:"id"
  }, record);
  var store=new Ext.data.JsonStore({ //建立数据
  proxy:proxy,
  reader:reader
  });//加；如果不行这样看看  var store=new Ext.data.JsonStore({ //建立数据
  url:"http://localhost:8084/EXT/data.jsp",//上面的scriptProxy不要，这里用url替换
  reader:reader
  });

Answer 2

js
貌似没有问题。
store 加载了2次。
  store.load({params:{start:0,limit:3}});//加载数据

Answer 3

不行 啥，出现这个问题是不是josn格式有问题啊：
{"total":"8","jsonlist":[{"l_title":"规则引擎基础","l_content":"规则引擎基础"},{"l_title":"规则引擎应用","l_content":"规则引擎应用"},{"l_title":"java基础","l_content":"java基础"}]}