Extjs Store 的异常错误处理

先来看看Store的load()方法

load(

Object options

) : void

Parameters:

options

: Object
An object containing properties which control loading options:

params :Object
An object containing properties to pass as HTTP parameters to a remote data source.

callback : Function}
A function to be called after the Records have been loaded. The callback is passed the following arguments:

r : Ext.data.Record[]
options: Options object from the load call
success: Boolean success indicator

scope : Object
Scope with which to call the callback (defaults to the Store object)

add : Boolean
Indicator to append loaded records rather than replace the current cache.

Returns:

void

由上可知，可以很轻松的写出Store异常处理

ds.load({params:{start:0, limit:4},

callback:function(r, options, success) {

if (success == false) {

Ext.Msg.alert('错误','数据提取错误') ; //当然也可以做其他的处理操作

}else{

Ext.Msg.alert('提示,'数据提取成功)

}

}

});

出错信息可以在options.request.scope.reader.jsonData 或 options.request.scope.reader.rawData 中获得。