Question

我正在尝试在as3中发送图像，因为有些图像很大，我试图将图像分开然后发送它们，然后重新组装它们。这是代码：

发件人代码：

package
{
    import flash.display.Loader;
    import flash.display.Sprite;
    import flash.events.DatagramSocketDataEvent;
    import flash.events.Event;
    import flash.net.DatagramSocket;
    import flash.net.FileReference;
    import flash.utils.ByteArray;

    public class test extends Sprite
    {
        private var socket:DatagramSocket;
        private var r:FileReference;
        private var loader:Loader;
        public function test()
        {
            socket = new DatagramSocket();
            socket.bind(12395, "127.0.0.1");
            r = new FileReference();
            r.addEventListener(Event.SELECT, loadFile);
            r.browse();
        }

        protected function loadFile(event:Event):void
        {
            r.addEventListener(Event.COMPLETE, sendFile);
            r.load();
        }

        protected function sendFile(event:Event):void
        {
            var b:ByteArray;
            trace(r.data.bytesAvailable);
            for(var i:uint = 0; i < r.data.bytesAvailable;)
            {
                b = new ByteArray();
                if(r.data.bytesAvailable >= 1024)
                {
                    r.data.readBytes(b, 0, 1024);
                    socket.send(b, 0, 0, "127.0.0.1", 12345);
                    trace(b.bytesAvailable);
                    trace(r.data.bytesAvailable);
                }
                else
                {
                    r.data.readBytes(b, i, r.data.bytesAvailable);
                    socket.send(b, 0, 0, "127.0.0.1", 12345);
                    b = new ByteArray();
                    socket.send(b, 0, 0, "127.0.0.1", 12345);
                    trace(b.bytesAvailable);
                    trace(r.data.bytesAvailable);
                    break;
                }           

            }

            trace("----------------------------");
        }
    }
}

接收者代码：

import flash.display.Loader;
import flash.display.Sprite;
import flash.events.DatagramSocketDataEvent;
import flash.events.Event;
import flash.net.DatagramSocket;
import flash.net.FileReference;
import flash.utils.ByteArray;
var socket:DatagramSocket;
var loader:Loader;
var b:ByteArray;
var i:uint = 0;
b = new ByteArray();
socket = new DatagramSocket();
socket.bind(12345, "127.0.0.1");
socket.addEventListener(DatagramSocketDataEvent.DATA, handleData);
socket.receive();
function handleData(event:DatagramSocketDataEvent):void
{

    if(event.data.bytesAvailable != 0)
    {
        trace("writing bytes...");
        event.data.readBytes(b, i);
        trace(b.bytesAvailable);
        //b.length = b.length + 1;
        i = i + 1024;
    }
    else
    {
        loadImg();
    }
}

function loadImg():void
{
    loader = new Loader();
    loader.contentLoaderInfo.addEventListener(Event.COMPLETE, addToStage);
    loader.loadBytes(b);
}
function addToStage(event:Event):void
{
    addChild(loader);
}

但即使发送和接收的字节完全相同，图像也不会加载。

Answer 1

我只需修改发件人代码，如下所示：

else
{
 r.data.readBytes(b, i, r.data.bytesAvailable);
 socket.send(b, 0, 0, "127.0.0.1", 12345);
 b = new ByteArray();
 b.writeByte(0)       // ADD THIS NEW LINE
 socket.send(b, 0, 0, "127.0.0.1", 12345);
 trace(b.bytesAvailable);
 trace(r.data.bytesAvailable);
 break;
}

它将触发loadImg函数。

在AS3中发送图像

1 个答案: