//submitForm为form表单

var myMask = new Ext.LoadMask(Ext.getBody(),{msg:"请稍等,正在导入..."});

myMask.show();

Ext.Ajax.request({ url:"uploadAction",

 method:"POST",

params:{

 id:id

},

success:function(){

if (myMask != undefined){ myMask.hide();}

Ext.Msg.alert("消息","文件导入成功!");

 },

failure:function(){

if (myMask != undefined){ myMask.hide();}

 Ext.Msg.alert("消息","文件导入失败!");

}

});