如何解析 JSON (AS3)
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How to parse JSON (AS3)
提问by Dietrich
How to parse downloaded .json file with a string inside it to a string variable? With as3corelib.swc.
如何将下载的 .json 文件解析为字符串变量？使用 as3corelib.swc。
回答by kirushik
And here we go, full-working example from my current project:
我们开始了，来自我当前项目的完整示例：
protected function loadConfigFromUrl():void
{
var urlRequest:URLRequest = new URLRequest(CONFIG_URL);
var urlLoader:URLLoader = new URLLoader();
urlLoader.addEventListener(Event.COMPLETE, completeHandler);
try{
urlLoader.load(urlRequest);
} catch (error:Error) {
trace("Cannot load : " + error.message);
}
}
private static function completeHandler(event:Event):void {
var loader:URLLoader = URLLoader(event.target);
trace("completeHandler: " + loader.data);
var data:Object = JSON.parse(loader.data);
trace("The answer is " + data.id+" ; "+data.first_var+" ; "+data.second_var);
//All fields from JSON are accessible by theit property names here/
}
回答by null
The function for parsing JSON using as3corelib ( ie not the native JSON class ) is 'decode()'
使用 as3corelib（即不是原生 JSON 类）解析 JSON 的函数是 'decode()'
JSON.decode( inputJson );
If the input json is properly encoded, strings should be available inside the resulting object. You may have trouble parsing strings if they have not been correctly escaped, but that is a problem with the input data.
如果输入的 json 被正确编码，字符串应该在结果对象中可用。如果字符串没有被正确转义，您可能会在解析字符串时遇到问题，但这是输入数据的问题。
