[ActionScript 3.0] AS向php发送二进制数据方法之——在URLRequest中构造HTTP协议发送数据

 package

 {

     import com.JPEGEncoder.JPGEncoder;

     import com.fylib.httpRequest.HttpRequestBuilder;

     import com.fylib.httpRequest.HttpRequestBuilderConsts;

     import flash.display.Bitmap;

     import flash.display.BitmapData;

     import flash.display.Loader;

     import flash.display.Sprite;

     import flash.events.Event;

     import flash.events.HTTPStatusEvent;

     import flash.net.URLLoader;

     import flash.net.URLRequest;

     import flash.utils.ByteArray;

     /**

       * ...

       * @author Frost.Yen

       */

     public class HTTPSendPHP extends Sprite

     {

         private var bmp:Bitmap;

         public function HTTPSendPHP()

         {

             var ldr:Loader = new Loader  ;

             ldr.load(new URLRequest("image.jpg"));

             //加载的图片;

             ldr.contentLoaderInfo.addEventListener(Event.COMPLETE,onComplete);

         }

         private function onComplete(e:Event):void

         {

             var bmpd:BitmapData = e.target.content as Bitmap.bitmapData;

             var jpgEncoder:JPGEncoder = new JPGEncoder(80);//图片质量

             var jpgStream:ByteArray = jpgEncoder.encode(bmpd);//将图片数据转换成ByteArray存储

             var HttpR:HttpRequestBuilder = new HttpRequestBuilder("php端地址");//php端地址

             HttpR.writeImage("图片变量","图片名称",HttpRequestBuilderConsts.JPG,jpgStream);

             //图片变量如："data[Image][name]";

             HttpR.writeHttpEnd();

             HttpR.writeSeparator();

             var loader:URLLoader = new URLLoader  ;

             var request:URLRequest = HttpR.getURLrequest();

             loader.load(request);

             loader.addEventListener(HTTPStatusEvent.HTTP_STATUS,httpStatusHandler);

             loader.addEventListener(Event.COMPLETE,onSendComplete);

         }

         private function onSendComplete(e:Event):void

         {

             trace("complete");

         }

         private function httpStatusHandler(e:HTTPStatusEvent):void

         {

             trace(("status is " + e.status));

         }

     }

 }

 package com.fylib.httpRequest

 {

     import flash.net.URLRequest;

     import flash.net.URLRequestMethod;

     import flash.net.URLVariables;

     import flash.utils.ByteArray;

     /**

       * ...

       * @author

       */

     public class HttpRequestBuilder

     {

         /**

           * 构造的URLRequest

           */

         private var _request:URLRequest;

         /**

           * 构造的二进制ByteArray

           */

         private var _byteArray:ByteArray;

         /**

           * Http协议分割符

           */

         private var _separator:String;

         /**

           * 标志位  是否填写HTTP文件尾

           */

         private var PROTOCAL_END_SET:Boolean = false;

         public function HttpRequestBuilder($url:String,$separator:String="7d86d710144a")

         {

             //初始化

             this._separator = $separator;

             this._request = new URLRequest($url);

             this._request.method = URLRequestMethod.POST;

             this._request.contentType = "multipart/form-data; boundary=---------------------------" + this._separator;

             this._byteArray = new ByteArray  ;

         }

         /*

          * 写入变量

          * @param $name 写入的变量名

          * @param $value 写入的变量值

          */

         public function writeVariable($name:String,$value:String):void

         {

             writeSeparator();

             _byteArray.writeUTFBytes(((("Content-Disposition: form-data; name=\"" + $name) + "\"\r\n\r\n") + $value));

         }

         /*

          * 写入图片

          * @param $name 变量名

          * @param $filename 图片文件名

          * @param $type 图片类型，在HttpRequestBuilderConsts下定义

          * @param $content 图片二进制数据

          */

         public function writeImage($name:String,$filename:String,$type:String,$content:ByteArray):void

         {

             writeSeparator();

             _byteArray.writeUTFBytes((((((("Content-Disposition: form-data; name=\"" + $name) + "\"; filename=\"") + $filename) + "\"\r\nContent-Type: ") + $type) + "\r\n\r\n"));

             _byteArray.writeBytes($content);

         }

         /*

          * 构造HTTP分割线

          */

         public function writeSeparator():void

         {

             _byteArray.writeUTFBytes((("\r\n-----------------------------" + separator) + "\r\n"));

         }

         /*

          * 构造HTTP结尾,只能调用一次，二次调用会抛出错误

          */

         public function writeHttpEnd():void

         {

             if (! PROTOCAL_END_SET)

             {

                 _byteArray.writeUTFBytes((("\r\n-----------------------------" + separator) + "--"));

                 PROTOCAL_END_SET = true;

             }

             else

             {

                 throw new Error("Write the Http End More Than Once");

             }

         }

         /*

          * 获取构造好的URLRequest

          */

         public function getURLrequest():URLRequest

         {

             return this.request;

         }

         //get set

         public function get separator():String

         {

             return _separator;

         }

         /*public function set separator(value:String):void

           {

            //TODO 替换之前写入的内容

            _separator = value;

           }*/

         /*

          * 获取前会检查是否写入HTTP结尾，未调用的话会报错

          */

         public function get request():URLRequest

         {

             if (! PROTOCAL_END_SET)

             {

                 throw new Error("Havn't Write the Http End Yet");

             }//??还是应该自动构造

             _request.data = _byteArray;

             return _request;

         }

     }

 }

 package com.fylib.httpRequest

 {

     /**

       * ...

       * @author

       */

     public class HttpRequestBuilderConsts

     {

         public static const JPG:String = "image/jpeg";

         public static const PNG:String = "image/x-png";

         public function HttpRequestBuilderConsts()

         {

         }

     }

 }