Flex实现的上传摄像头拍照并将UI保存为图片

admin Flex

2023-12-07 0 283

flex客户端代码：复制代码代码如下: <?xml version=\”1.0\” encoding=\”utf-8\”?> <s:Application xmlns:fx=\”http://ns.adobe.com/mxml/2009\” xmlns:s=\”library://ns.adobe.com/flex/spark\” xmlns:mx=\”library://ns.adobe.com/flex/mx\” minWidth=\”955\” minHeight=\”600\” creationComplete=\”application1_creationCompleteHandler(event)\”> <fx:Script> <![CDATA[ import mx.controls.Alert; import mx.core.UIComponent; import mx.events.FlexEvent; import mx.graphics.codec.JPEGEncoder; import mx.rpc.events.FaultEvent; import mx.rpc.events.ResultEvent; import mx.utils.UIDUtil; protected function application1_creationCompleteHandler(event:FlexEvent):void { initCamera(videoDis); } //初始化Camera控件，并添加在VideoDisplay public function initCamera(videoDis:UIComponent):void { var myCamera:Camera = Camera.getCamera();//获取客户端摄像头 myCamera.setMode(500,500,30); var myVideo:Video = new Video(500,500); myVideo.attachCamera(myCamera);//获取摄像头的视频流 videoDis.addChild(myVideo); } //将可视的UIComponent组件转换为图片 public function UItoBitmap(source:UIComponent,target:UIComponent):void { var width :int = source.width; var height :int = source.height; var bitmapData:BitmapData =new BitmapData(width,height); bitmapData.draw(source,new Matrix()); var bitmap:Bitmap=new Bitmap(bitmapData); var uic:UIComponent = new UIComponent(); uic.addChild(bitmap); target.addChild(uic); } //将可视的UIComponent组件保存为本地图片 public function UISaveAsImg(imgID:UIComponent):void { var width :int = imgID.width; var height :int = imgID.height; var bitmapData:BitmapData =new BitmapData(width,height); bitmapData.draw(imgID); var byteArr:ByteArray = bitmapData.getPixels(new Rectangle(0,0,width,height)); var byteArr123:ByteArray =new JPEGEncoder().encodeByteArray(byteArr,width,height); var fileRefer:FileReference = new FileReference(); fileRefer.save(byteArr123,UIDUtil.createUID()+\”.png\”); fileRefer.addEventListener(Event.COMPLETE,function completeHandler():void{ Alert.show(\”保存本地成功\”); }); } //照片上传到服务器 protected function upLoadImg(imgID:UIComponent):void { var width :int = imgID.width; var height :int = imgID.height; var bitmapData:BitmapData =new BitmapData(width,height); bitmapData.draw(imgID); var byteArr:ByteArray = bitmapData.getPixels(new Rectangle(0,0,width,height)); var byteArr123:ByteArray =new JPEGEncoder().encodeByteArray(byteArr,width,height); webService.UploadFile(byteArr123,\”123.png\”); } protected function webService_faultHandler(event:FaultEvent):void { Alert.show(event.fault.toString()); } protected function webService_successHandler(event:ResultEvent):void { Alert.show(event.result.toString()); } ]]> </fx:Script> <fx:Declarations> <!– 将非可视元素（例如服务、值对象）放在此处 –> <s:WebService id=\”webService\” wsdl=\”http://10.19.1.48/upImg/Service1.asmx?WSDL\” fault=\”webService_faultHandler(event)\”> <s:operation name=\”UploadFile\” result=\”webService_successHandler(event)\”></s:operation> </s:WebService> </fx:Declarations> <s:VideoDisplay id=\”videoDis\” width=\”500\” height=\”500\” click=\”UItoBitmap(videoDis,t_img_Picture),UItoBitmap(videoDis,content)\” toolTip=\”点击拍照\”></s:VideoDisplay> <mx:DateChooser id=\”myDate\” x=\”62\” y=\”508\” click=\”UItoBitmap(myDate,t_img_Picture),UItoBitmap(myDate,content)\” toolTip=\”点击拍照\”/> <mx:Image id=\”t_img_Picture\” x=\”522\” y=\”0\” width=\”500\” height=\”500\” click=\”UISaveAsImg(t_img_Picture)\” toolTip=\”点击保存本地\”/> <mx:Canvas id=\”content\” x=\”500\” y=\”300\” width=\”500\” height=\”500\” click=\”UISaveAsImg(content)\” toolTip=\”点击保存本地\”></mx:Canvas> <s:Button x=\”305\” y=\”537\” label=\”上传\” width=\”130\” height=\”64\” click=\”upLoadImg(t_img_Picture)\”/> </s:Application> webservice代码：复制代码代码如下: /// <summary> /// 上传文件到远程服务器 /// </summary> /// <param name=\”fileBytes\”>文件流</param> /// <param name=\”fileName\”>文件名</param> /// <returns>字符串</returns> [WebMethod(Description = \”上传文件到远程服务器.\”)] public string UploadFile(byte[] fileBytes, string fileName) { try { MemoryStream memoryStream = new MemoryStream(fileBytes); //1.定义并实例化一个内存流，以存放提交上来的字节数组。 FileStream fileUpload = new FileStream(Server.MapPath(\”.\”) + \”\\\\\” + fileName, FileMode.Create); ///2.定义实际文件对象，保存上载的文件。 memoryStream.WriteTo(fileUpload); ///3.把内存流里的数据写入物理文件 memoryStream.Close(); fileUpload.Close(); fileUpload = null; memoryStream = null; return \”文件已成功上传至服务器\”; } catch (Exception ex) { return ex.Message; } }

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