AS3中的序列化与反序列化

import com.adobe.serialization.json.*;
//构造一个复杂对象
var obj:Object = new Object();
obj.name = "yjm";
obj.sex = "Male";
obj.hello = fnHello;
function fnHello(){
	obj.name = "Hello World";
}
var jsonEn:JSONEncoder = new JSONEncoder(obj);
var jsonStr:String = jsonEn.getString();
trace(jsonStr);//输出 : {"name":"yjm","sex":"Male"} ,可以看到obj.hello并未成功序列化为json字符串
var jsonDe:JSONDecoder = new JSONDecoder(jsonStr);
var obj2:Object = jsonDe.getValue();//反序列化
trace(obj2.name,obj2.sex);//输出：yjm Male

import flash.events.MouseEvent;
import flash.utils.ByteArray;
import com.adobe.images.JPGEncoder;
import flash.display.Bitmap;


var bytes:ByteArray;
var bit:SampleImage;//SampleImage是库中的图片链接"类名"

//将图片序列化为ByteArray
function btnEncodeClick(e:MouseEvent):void {
	var jpg:JPGEncoder = new JPGEncoder();
	bytes = jpg.encode(bit);
	txtArray.text = "";
	for (var i:uint=0,j=bytes.length; i<j; i++) {
		txtArray.appendText(bytes[i].toString() + ",");
	}
	if (txtArray.text.length > 0) {
		txtArray.text = txtArray.text.substring(0,txtArray.text.length - 1);
	}
	
	btnEncode.enabled = false;
	btnEncode.removeEventListener(MouseEvent.CLICK,btnEncodeClick);
	
	btnDecode.addEventListener(MouseEvent.CLICK,btnDecodeClick);
}


//将ByteArray反序列化为图象
function btnDecodeClick(e:MouseEvent):void {
	if (bytes==null){return;}
	var _ld:Loader = new Loader();
	_ld.loadBytes(bytes);
	_ld.contentLoaderInfo.addEventListener(Event.COMPLETE, onComplete);
	
	btnDecode.enabled = false;
	btnDecode.removeEventListener(MouseEvent.CLICK,btnDecodeClick);
}

//加载完成的回调函数
function onComplete(e:Event):void {
	var bitMap:Bitmap = e.target.content as Bitmap;//读取Bitmap   
	addChild(bitMap);
	bitMap.y = 7;
	bitMap.x = 330;
}

function init():void{
	bit = new SampleImage();
	var bitMap:Bitmap = new Bitmap(bit);
	bitMap.x = 100;
	bitMap.y = 7;
	addChild(bitMap);
	btnEncode.addEventListener(MouseEvent.CLICK,btnEncodeClick);
	
}

init();

import flash.events.MouseEvent;
import flash.utils.ByteArray;
import flash.display.Bitmap;
import flash.events.Event;
import flash.net.FileReference;


var bytes:ByteArray;
var bit:SampleImage;//SampleImage是库中的图片链接"类名"

//将图片序列化为ByteArray
function btnEncodeClick(e:MouseEvent):void {

	bytes = new ByteArray();

	bytes.writeUnsignedInt(bit.width);
	// 保存图像宽度;

	bytes.writeBytes(bit.getPixels(bit.rect));
	//保存图像字节数组;

	bytes.compress();


	/*
	var fileRef:FileReference = new FileReference();
	fileRef.save(bytes,"image.bmd");
	// 默认文件名: "image.bmd";*/


	trace(bytes.length);

	txtArray.text = "";

	for (var i:uint=0,j=bytes.length; i<j; i++) {
		txtArray.appendText(bytes[i].toString() + ",");
	}

	if (txtArray.text.length > 0) {
		txtArray.text = txtArray.text.substring(0,txtArray.text.length - 1);
	}

	btnEncode.enabled = false;
	btnEncode.removeEventListener(MouseEvent.CLICK,btnEncodeClick);

	btnDecode.addEventListener(MouseEvent.CLICK,btnDecodeClick);
}


//将ByteArray反序列化为图象
function btnDecodeClick(e:MouseEvent):void {
	if (bytes == null) {
		return;
	}

	/*var ldr:URLLoader = new URLLoader();	
	ldr.dataFormat = URLLoaderDataFormat.BINARY;// ** 这里一定要指定dataFormat为URLLoaderDataFormat.BINARY **	
	ldr.addEventListener(Event.COMPLETE, on_fileLoad);	
	ldr.addEventListener(IOErrorEvent.IO_ERROR, on_fileLoadError);	
	var pathToBitmapDataFile:String = "image.bmd";
	ldr.load(new URLRequest(pathToBitmapDataFile));*/
	
	bytes.uncompress();
	var iWidth:int = bytes.readUnsignedInt();
	var iHeight:int = ((bytes.length - 4) / 4) / iWidth;	
	var bmd:BitmapData = new BitmapData(iWidth,iHeight,true,0);
	bmd.setPixels(bmd.rect, bytes);	
	var bm:Bitmap = new Bitmap(bmd);
	addChild(bm);
	bm.y = 7;
	bm.x = 330;

	btnDecode.enabled = false;
	btnDecode.removeEventListener(MouseEvent.CLICK,btnDecodeClick);
}

/*function on_fileLoadError(evt:Event):void {
	trace(evt.type);
}

function on_fileLoad(evt:Event):void {
	if (evt.type == Event.COMPLETE) {
		var data:ByteArray = URLLoader(evt.target).data as ByteArray;
		if (data) {
			try {
				data.uncompress();
			} catch (e:Error) {

			}

			// 此时的数据已经是解压后的字节数组了
			// 数据解压后
			var width:int = data.readUnsignedInt();// 起始的4个字节
			// after data.uncompress()
			var height:int = ((data.length - 4) / 4) / width;
			// (data.length - 4) ** 去掉开始的4个字节,其余的便是位图的字节数组了 **
			// ((data.length - 4) / 4) ** 每个像素4个字节长, 所以要除以4得到总像素数 **
			// ((data.length - 4) / 4) / 宽度 ** 记住,因为是矩形才能这样计算出高度 **
			var bmd:BitmapData = new BitmapData(width,height,true,0);// 32位支持alpha通道的位图
			bmd.setPixels(bmd.rect, data);
			// 数据的position指向第5个字节了;
			var bm:Bitmap = new Bitmap(bmd);
			addChild(bm);
			
		}

	}

}
*/


function init():void {
	bit = new SampleImage();
	var bitMap:Bitmap = new Bitmap(bit);
	bitMap.x = 100;
	bitMap.y = 7;
	addChild(bitMap);
	btnEncode.addEventListener(MouseEvent.CLICK,btnEncodeClick);

}

init();