flex传图片到服务器（将流进行编码成string）

1. 将流和图片的名字同时传到后台，需要对流进行base64编码，将byte数组转换成string， 在jsp页面进行转码，中文乱码用encodeURIComponent，编码，后台jsp用URLDecoder.decode转成utf-8,js中文图片显示：realName=encodeURI(realName ).replace(new RegExp("%","gm"),"-");，程序中同样处理 2. felx页面 var bitmapData:BitmapData = new BitmapData(620,420);? var mat:Matrix=new Matrix(); mat.scale(620/Flow.flowDesignerArea.width,420/Flow.flowDesignerArea.height); //mat.scale(620/Flow.flowDesignerArea.width,420/Flow.flowDesignerArea.height); bitmapData.draw(Flow.flowDesignerArea,mat); var bitmap : Bitmap = new Bitmap(bitmapData);?? var jpg:JPEGEncoder = new JPEGEncoder();?? var bitmapdata:BitmapData= new BitmapData(450,500); var ba:ByteArray = jpg.encode(bitmapData); var service:HTTPService= new HTTPService(); service.url="http://localhost:8080/XX/MyJPG.jsp"; // service.resultFormat="xml"; //转换中文解码 service.method="POST"; var obj:Object= new Object(); obj.fileName= encodeURIComponent(fileName); var data:String= ba.toString(); //对流进行解码 var base64:Base64Encoder = new Base64Encoder; base64.encodeBytes(ba); obj.data= base64.toString(); service.addEventListener(ResultEvent.RESULT,function (event:ResultEvent):void{ Alert.show("保存成功:"+event.result as String,"提示"); }); service.addEventListener(FaultEvent.FAULT,function (event:FaultEvent):void{ Alert.show("保存失败","提示"); }); service.send(obj); 3.jsp页面处理保存到服务器上的项目里 <%@ page language="java" import="sun.misc.BASE64Decoder,java.io.*,java.util.*" pageEncoding="utf-8"%> ????? <% ????? BASE64Decoder decoder = new sun.misc.BASE64Decoder();??? ????? ?????????? String fileName=request.getParameter("fileName"); ?????????? String dataString=request.getParameter("data"); ?????????? System.out.print(fileName); ??????????? System.out.print(dataString); ????????? InputStream inputStream = request.getInputStream();?? ????????? ????????? if(fileName!=null){ ????????????? byte [] bt=decoder.decodeBuffer(dataString); ????????????? ????????????? for(int i=0;i<bt.length;i++) ????????? { ???????????????? if(bt[i]<0) ???????????????? { //调整异常数据 ????????????? bt[i]+=256; ????????????? } ?????????? } ????????????? ?????????????????????? ??????????????????????? File dir = new File(application.getRealPath("/") + "FlowOAImage"); ??? if (!dir.exists()) ??? { ????? dir.mkdirs(); ??? }//中文图片显示 ??? System.out.println( application.getRealPath("/") + "FlowOAImage"); ???????????? String path = dir.getAbsolutePath() + "/" + fileName.replaceAll("%","-"); ????????? OutputStream? fos= new FileOutputStream(new File(path+".jpg"),false); ??????? ? fos.write(bt); ??????? ? fos.flush(); ??????? ? fos.close(); ??? fileName=java.net.URLDecoder.decode(fileName,"utf-8"); ??????? out.print(fileName+".jpg"); ????????? }else { ???????? ????????? } ???????? ???????? %>