Flex 使用URLStream读取服务器端图片文件流并显示

package download; import java.io.BufferedInputStream; import java.io.BufferedOutputStream; import java.io.FileInputStream; import java.io.IOException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; public class DownLoadFile extends HttpServlet { /** * */ private static final long serialVersionUID = 3089316329737765177L; public void doGet(HttpServletRequest request,HttpServletResponse response) throws IOException{ doPost(request,response); } public void doPost(HttpServletRequest request,HttpServletResponse response) throws IOException{ try { downLoad(response); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } } private void downLoad(HttpServletResponse response) throws Exception { BufferedOutputStream bos = null; BufferedInputStream bis = null; try { bis = new BufferedInputStream(new FileInputStream("c:/head.PNG")); bos = new BufferedOutputStream(response.getOutputStream()); byte[] buff = new byte[2048]; int bytesRead; while(-1 != (bytesRead = bis.read(buff, 0, buff.length))) { bos.write(buff,0,bytesRead); } } catch(final IOException e) { e.printStackTrace(); } catch(Exception e) { e.printStackTrace(); }finally { if (bis != null) bis.close(); if (bos != null) { bos.flush(); bos.close(); bos=null; } } response.flushBuffer(); } }