Ext.define('Ext.ux.StoreLoadCoordinator', {
mixins: {observable: 'Ext.util.Observable'
},
resetStoreLoadStates: function() {this.storeLoadStates = {};              Ext.each(this.stores, function(storeId) {this.storeLoadStates[storeId] = false;}, this);
},
isLoadingComplete: function() {for (var i=0; i<this.stores.length; i++) {var key = this.stores[i];if (this.storeLoadStates[key]==false) {return false;}}return true;
},
onStoreLoad: function(store, records, successful, eOpts, storeName) {this.storeLoadStates[store.storeId] = true;if (this.isLoadingComplete()==true) {this.fireEvent('load');this.resetStoreLoadStates();}
},
constructor: function (config) {this.mixins.observable.constructor.call(this, config);this.resetStoreLoadStates();Ext.each(this.stores, function(storeId) {var store = Ext.StoreManager.lookup(storeId);store.on('load', Ext.bind(this.onStoreLoad, this, [storeId], true));}, this);this.addEvents('load'            );
}});

var store1 =  Ext.create('Ext.data.Store', {storeId: 'Store1',.... (rest of store config)
}});        var store2 =  Ext.create('Ext.data.Store', {storeId: 'Store2',.... (rest of store config)
}});        var coordinatior = Ext.create('Ext.ux.StoreLoadCoordinator', {stores: ['Store1', 'Store2'],listeners: {load: function() {// Do post-load work}}
});

var bChartArr =[false, false, false, false];
//加载图表轴
Ext.getStore("ChartAxes").load(
{  params:{ queryId:queryId },  callback:function(){  bChartArr[0] = true;  }
});
//加载图表序列
Ext.getStore("ChartSeries").load(
{  params:{ queryId:queryId },  callback:function(){  bChartArr[1] = true;  }  });
//加载图表样式
Ext.getStore("ChartStyle").load(
{  params:{ queryId:queryId },  callback:function(){  bChartArr[2] = true;  }
});
// 按钮
Ext.getStore("Buttons").load(
{  params:{query_id:queryId},  scope:this,  callback:function(){  bChartArr[3] = true;  }
});
var me = this;
// 等待所有的Storoe加载完成后执行
var timer = setInterval(function(){  if(bChartArr[0] && bChartArr[1] && bChartArr[2] && bChartArr[3]){  clearInterval(timer); // 清除等待  // 解析图表样式、轴、序列动态生成图表  me.createChartPanel();  }
},100);

var store1 = Ext.create('Ext.data.Store', {model: myModel,storeId: 'store1', //<-- adds this to Ext.data.StoreManagerproxy: {type: 'ajax', url: 'url...',reader: 'json'},autoLoad: {callback: initData}
});var store2 = Ext.create('Ext.data.Store', {model: myModel,storeId: 'store2',proxy: {type: 'ajax', url: 'url...',reader: 'json'},autoLoad: {callback: initData}
});// Initialize store dependencies when all stores are loaded
function initData() {var loaded;Ext.data.StoreManager.each( function(store) {loaded &= !store.isLoading();   return loaded;});if(loaded) {// do stuff with the data}
}