AS3对象到JSON

Question

我正在尝试将对象数组(嵌套)转换为JSON字符串.这是我的JSON输出:

[{
    "Width": 570,
    "SessionID": 2003404006158805,
    "Price": "69,90",
    "PageCount": 24,
    "Pages": [{
        "ID": 1,
        "TemplateID": 0,
        "PageType": "cover",
        "TextContainers": [],
        "ImageContainers": []
    }, {
        "ID": 2,
        "TemplateID": 1001,
        "PageType": "single",
        "TextContainers": [],
        "ImageContainers": []
    }, {
        "ID": 3,
        "TemplateID": 0,
        "PageType": "double",
        "TextContainers": [],
        "ImageContainers": [{
            "Width": 570,
            "IsBG": true,
            "Brightness": 0,
            "Contrast": 0,
            "PosX": null,
            "ScaleX": null,
            "Height": 284,
            "ID": -1,
            "BlackWhite": 0,
            "PosY": null,
            "HasPhoto": false,
            "ScaleY": null,
            "PhotoID": null
        }]
    }, {
        "ID": 4,
        "TemplateID": 0,
        "PageType": "double",
        "TextContainers": [],
        "ImageContainers": [{
            "Width": 570,
            "IsBG": true,
            "Brightness": 0,
            "Contrast": 0,
            "PosX": null,
            "ScaleX": null,
            "Height": 284,
            "ID": -1,
            "BlackWhite": 0,
            "PosY": null,
            "HasPhoto": false,
            "ScaleY": null,
            "PhotoID": null
        }]
    }],
    "ProductSubID": 0,
    "Height": 620,
    "ProductID": 0
}]

当我试图将此字符串转换为XML(在服务器端)时出现如下:

<?xml version="1.0" encoding="UTF-8" ?>
    <0>
        <Width>570</Width>
        <SessionID>2003404006158805</SessionID>
        <Price>69,90</Price>
        <PageCount>24</PageCount>
        <Pages>
            <ID>1</ID>
            <TemplateID>0</TemplateID>
            <PageType>cover</PageType>
        </Pages>
        <Pages>
            <ID>2</ID>
            <TemplateID>1001</TemplateID>
            <PageType>single</PageType>
        </Pages>
        <Pages>
            <ID>3</ID>
            <TemplateID>0</TemplateID>
            <PageType>double</PageType>
            <ImageContainers>
                <Width>570</Width>
                <IsBG>true</IsBG>
                <Brightness>0</Brightness>
                <Contrast>0</Contrast>
                <PosX />
                <ScaleX />
                <Height>284</Height>
                <ID>-1</ID>
                <BlackWhite>0</BlackWhite>
                <PosY />
                <HasPhoto>false</HasPhoto>
                <ScaleY />
                <PhotoID />
            </ImageContainers>
        </Pages>
        <Pages>
            <ID>4</ID>
            <TemplateID>0</TemplateID>
            <PageType>double</PageType>
            <ImageContainers>
                <Width>570</Width>
                <IsBG>true</IsBG>
                <Brightness>0</Brightness>
                <Contrast>0</Contrast>
                <PosX />
                <ScaleX />
                <Height>284</Height>
                <ID>-1</ID>
                <BlackWhite>0</BlackWhite>
                <PosY />
                <HasPhoto>false</HasPhoto>
                <ScaleY />
                <PhotoID />
            </ImageContainers>
        </Pages>
        <ProductSubID>0</ProductSubID>
        <Height>620</Height>
        <ProductID>0</ProductID>
    </0>

但我需要它像:

<pages>
<page>
</page>
<page>
</page>
</pages>

这是我将AS数组转换为JSON的AS代码

var Pages:Array = [];
            var Books:Array = [];
            var JBook:Object = new Object();

            JBook.Width = Global.BOOK_WIDTH;

            for(var i:Number = 0; i<Global.PAGES.length; i++)
            {
                var Page:PageVO = Global.PAGES[i] as PageVO;
                var JPage:Object = new Object();
                JPage.ID = Page.ID;

                var ImageContainers:Array = [];
                var TextContainers:Array = [];
                var Template:TemplateVO = Page.ACTIVE_TEMPLATE;

                for(var j:Number = 0; j<Template.IMAGE_CONTAINERS.length; j++)
                {
                    var ImageContainer:ImageContainerVO = Template.IMAGE_CONTAINERS[j] as ImageContainerVO;
                    var JImageContainer:Object = new Object();
                    JImageContainer.ID = ImageContainer.ID;
                    ImageContainers.push(JImageContainer);
                }

                for (var m:Number = 0; m<Template.TEXT_CONTAINERS.length; m++)
                {
                    var TextContainer:TextContainerVO = Template.TEXT_CONTAINERS[m] as TextContainerVO;
                    var JTextContainer:Object = new Object();
                    JTextContainer.ID = TextContainer.ID;
                }

                JPage.TextContainers = TextContainers;
                JPage.ImageContainers = ImageContainers;
                Pages.push(JPage);
            }

            var Photos:Array = [];
            for(var p:Number = 0; p<Global.PHOTOS.length; p++ )
            {
                var Photo:PhotoVO = Global.PHOTOS[p] as PhotoVO;
                var JPhoto:Object = new Object();
                JPhoto.BMP = ImageUtils.BitmapToBase64(Photo.BMP.bitmapData);
                JPhoto.UseCount = Photo.USE_COUNT;
                JPhoto.ID = Photo.ID;
                Photos.push(JPhoto);
            }


            //JBook.Photos = Photos;
            JBook.Pages = Pages;
        JSON   = com.adobe.serialization.json.JSON.encode(Books);

知道它为什么渲染JSON字符串就像它们不在同一个节点(每个页面项的单独节点)？

希望我已经清楚了.谢谢.

Answer 1

将AS3对象转换为JSON字符串的最简单方法可能是使用as3corelib中的JSON类.

用法示例:

var jsonString:String = JSON.encode(myDataObject);

最好不要编写自己的解析器,因为as3corelib JSON解析器已经被很多人使用和使用了很长一段时间.

编辑: @dpcao提到您甚至不再需要外部库,Adobe在FlashPlayer 11中引入了一个新的JSON类.

用法示例:

var jsonString:String = JSON.stringify(myDataObject);