Extjs4 在store中获取root之外的json数据

Ext.regModel( "model", {

fields: [' fielname']

} );

var store = new Ext.data.Store( {

model: 'model',

pageSize : 20,

loadMask : true,

proxy: {

type: 'ajax',

url : '<%=rootPath%>/structsAction.action',

reader: { type: 'json', root: 'modelDataList' , totalProperty : 'totalProperty' },

timeout:90000

},

listeners: {

load: function(records,options, success,response){

if(success){

maxYAxesValue = 0 , minYAxesValue = 0 ;

var otherJsonData = null;

otherJsonData = this.proxy.reader.jsonData.otherJsonData

<portlet:namespace />AfterLoadFunction( store ,otherJsonData ) ;

}

globalMask.hide();

} ,

beforeload: function (store, operation, opts) {

globalMask.show();

Ext.apply( operation, {

params: {

param1 : "param1"

}

} );

}

}

} );

store.load();