我有一个应用程序,下载一个文件,然后去code期待它的JSON格式,当格式是确定一切顺利。如果我故意乱JSON文件快报格式错误,并停止该应用程序。有没有一种方法来处理错误?
I have an app that download a file and then decode it expecting a JSON format, when the format is ok everything goes well. If i intentionally mess the json file flash reports a format error and stop the app. Is there a way to handle the error?
code:
import flash.display.Sprite;
import flash.events.Event;
import flash.net.URLLoader;
import flash.net.URLRequest;
import com.adobe.serialization.json.JSON;
public class Main extends Sprite
{
private var _jsonPath:String = "json_example.txt";
public function Main():void
{
if (stage) init();
else addEventListener(Event.ADDED_TO_STAGE, init);
}
private function init(e:Event = null):void
{
removeEventListener(Event.ADDED_TO_STAGE, init);
var loader:URLLoader = new URLLoader();
var request:URLRequest = new URLRequest();
request.url = _jsonPath;
loader.addEventListener(Event.COMPLETE, onLoaderComplete);
loader.load(request);
}
private function onLoaderComplete(e:Event):void
{
var loader:URLLoader = URLLoader(e.target);
var jsonArray:Array = JSON.decode(loader.data);
}
您看我的问题是,就在年底,其中 VAR jsonArray:阵列= JSON.de code(loader.data);
如何处理我的code。如果失败了?
You see my problem is right at the end where var jsonArray:Array = JSON.decode(loader.data);
How can I handle in my code if that fails?
推荐答案
使用尝试..赶上......
Use try.. catch...
import com.adobe.serialization.json.JSONParseError;
try
{
var jsonArray:Array = JSON.decode(loader.data);
}
catch ( e:JSONParseError )
{
//do something
trace(e);
}
finally
{
}
该解决方案使用的as3corelib( HTTP://as3corelib.google$c$c.com/ ),如果你使用JSON.parse()请从JayC答案
This solution uses as3corelib (http://as3corelib.googlecode.com/), if you use JSON.parse() please check the answer from JayC
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