</script> 
</head> 
<body style="padding:0px;margin:10px;"> 
<div id="grid" style="border:0px solid #cccccc;background-color:#f3f3f3;padding:5px;width:100%;" > 
</div> 
</body> 
</html> 
[/code]
//proxy直接去读取josn数据
  var ds = new Ext.data.Store({
  proxy: new Ext.data.HttpProxy({url:'gridjson.jsp'}),   
  reader: new Ext.data.JsonReader({
  totalProperty: 'totalProperty',
  root: 'root',
  successProperty :'success'
  }, [
  {name: 'id',mapping:'id',type:'int'},
  {name: 'name',mapping:'name',type:'string'},
  {name: 'descn',mapping:'descn',type:'string'}
  ])
  });
这个是例子里的代码
var ds= new Ext.data.Store({  
proxy: new Ext.data.HttpProxy({url: "listPreArchiveEdit.html?content.method=TestGtSearch&contentPath=/preArchive/1@2/1@299/29@332/4@346/3@456/@458"}),  
reader: new Ext.data.JsonReader({  
totalProperty:"pageInfo",  
root:"data",  
fields:[  
  {name:"密级"},  
  {name:"办结提示"},  
  {name:"成文日期"},  
  {name:"附件"},   
  {name:"责任者"},   
  {name:"拟稿部门"},   
  {name:"签发时间"},   
  {name:"保管期限"},   
  {name:"登记号"},   
  {name:"全
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