[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

主类 HTTPSendPHP.as

 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));
         }
     }

 }

其他类

 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()
         {

         }

     }

 }