'northView button[id=produce]':{//通过设置treepanel的proxy就行 click:function(btn){ var west=Ext.getCmp('west'); var west1=west.down('treepanel'); var store=west1.getStore(); store.setProxy({ type:'ajax', url:'/Extjs4/menuAction!getMenuList.action' }); store.load(); west.setTitle("生产管理"); } }