在Flex中使用JSON新手入门: 读取豆瓣API
Categories: Flex; Tagged with: ActionScirpt • Flex • 豆瓣 • 豆瓣API; @ December 13th, 2012 17:59豆瓣提供了丰富的API, 在Flex中可使用WebService快速调用。
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在Flex中使用JSON
FlashPlayer 11开始原生支持JSON:
Native JSON (JavaScript Object Notation) Support — Allows ActionScript developers to take advantage of high performance native parsing and generation of JSON-formatted data.
— http://helpx.adobe.com/x-productkb/multi/release-notes-flash-player-11.html
在Flex SDK 4.6中已有顶级类： JSON。
如果使用旧的SDK, 则可以as3corelib:
An ActionScript 3 Library that contains a number of classes and utilities for working with ActionScript? 3. These include classes for MD5 and SHA 1 hashing, Image encoders, and JSON serialization as well as general String, Number and Date APIs.
不过看起来已经有两年多没有更新了。 swc下载地址： https://github.com/mikechambers/as3corelib/downloads
SDK4.6与As3CoreLib中JSON Class的method name略有不同。
代码：
private function onJSONLoad(event:ResultEvent):void
{
var rawData:String = String(event.result);
var rawResult:Object = JSON.parse(rawData);
var books:Array = (rawResult.collections as Array);
var dp:ArrayCollection = new ArrayCollection(books);
dataGridBooks.dataProvider = dp;
}
在GitHub上查看完整代码：https://github.com/DavidGuoliang/DoubanAnalytics/blob/master/src/DouBanJson.mxml