Question

ExtJS前台读取后台数据的问题

--------------------前台
Ext.onReady
(
function()
{
var cum=new Ext.grid.ColumnModel
(
[
{header:'层次编号',dataIndex:'LAYERNO'},
{header:'分层类型',dataIndex:'LAYERTYPE'},
{header:'帐户机构号',dataIndex:'ACTORG'},
{header:'人数',dataIndex:'CUSTOMERNO'},
{header:'有效比例',dataIndex:'AVILBL'},
{header:'总金额',dataIndex:'SUMBAL'}
]
);

var myproxy=new Ext.data.HttpProxy
(
{
url:"shit.jsp"
}
);

var myreader=new Ext.data.JsonReader
(
{
totalProperty:'totalProperty',
root:'root'
},
[
{name:'LAYERNO'},
{name:'LAYERTYPE'},
{name:'ACTORG'},
{name:'CUSTOMERNO'},
{name:'AVILBL'},
{name:'SUMBAL'}
]
);

var busnieStore=new Ext.data.Store
(
{
proxy:myproxy,
reader:myreader,
listeners :
{
'loadexception' : function()
{
alert('exception');
},
'beforeload' : function(store, options)
{
mst=Ext.MessageBox.show
(
{
title:'test',
width:250,
msg:'before....'
}
)
},
'load' : function()
{
alert("load")
mst.hide()
}
},
callback:function(r,options,success)
{
alert('2')
if(success)
{
alert("1")
var recordds=new Array();
for(var i=0;i<r.length;i++)
{
alert(r[i].data.caPk);
};
}
}
}

);

var grid=new Ext.grid.GridPanel
(
{
height : 300,
cm:cum,
layout : 'form',
region:'center',
id:'grid',
store:busnieStore,
renderTo:'cbt',
viewConfig:
{
forceFit:true
}
}
);

busnieStore.load();
}
)

---------后台
<%
System.out.println("kaishi.....");

try
{
String JSONStr="{totalProperty:1,root:[{ACTORG:'15601',LAYERTYPE:'0余额',AVILBL:'0',LAYERNO:'0',CUSTOMERNO:'9394',SUMBAL:'0'}]}";
response.getWriter().write(JSONStr);
}
catch(Exception e)
{

}

%>

谁能帮我看一下，前台读取后台数据，为什么显示不出来，跪求，看了一天了

Answer 1

{name:'LAYERNO'},
{name:'LAYERTYPE'},
{name:'ACTORG'},
{name:'CUSTOMERNO'},
{name:'AVILBL'},
{name:'SUMBAL'}

拜托，这里面的值全部用小写啊，大写不行的，如name:'layerno‘这样才行，而且需要把后台的对应字段也改为小写哈

Answer 2

1、这里的定义能否访问到服务端页面？url:"shit.jsp"
2、
var myReader = new Ext.data.JsonReader({
// metadata configuration options:
idProperty: 'id'
root: 'rows',
totalProperty: 'results',
// the fields config option will internally create an Ext.data.Record
// constructor that provides mapping for reading the record data objects
fields: [
// map Record's 'firstname' field to data object's key of same name
{name: 'name', mapping: 'firstname'},
// map Record's 'job' field to data object's 'occupation' key
{name: 'job', mapping: 'occupation'}
]
});