ssh嵌入flex实现在线拍照，并付图片预览

package com.zaixian.common; import java.awt.Color; import java.awt.image.BufferedImage; import java.io.ByteArrayOutputStream; import java.io.DataOutputStream; import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import javax.imageio.ImageIO; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import java.util.*; public class onLineTakePhotoServlet extends HttpServlet { private static final long serialVersionUID = 1L; public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { processRequest(request, response); } public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { processRequest(request, response); } public void processRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { response.setContentType("text/html;charset=UTF-8"); response.setHeader("Pragma", "No-cache"); response.setHeader("Cache-Control", "no-cache"); response.setDateHeader("Expires", 0); String bitmap_data = request.getParameter("bitmap_data"); int width = Integer.parseInt(request.getParameter("width")); int height = Integer.parseInt(request.getParameter("height")); BufferedImage img = new BufferedImage(width, height,BufferedImage.TYPE_INT_RGB); String saveName=""; try { int w = width; int h = height; int[] pixels = new int[w * h]; String[] m_tempPics = bitmap_data.split(","); for (int x = 0; x < w; x++) { for (int y = 0; y < h; y++) { long pic_argb = (long) Long.parseLong(m_tempPics[x * h + y]); int a = (int) (pic_argb >> 24 & 0xFF); int r = (int) (pic_argb >> 16 & 0xFF); int g = (int) (pic_argb >> 8 & 0xFF); int b = (int) (pic_argb & 0xFF); pixels[y * w + x] = new Color(r, g, b, a).getRGB(); } } img.setRGB(0, 0, w, h, pixels, 0, w); img.flush(); ByteArrayOutputStream bao = new ByteArrayOutputStream(); ImageIO.write(img, "jpg", bao); byte[] data = bao.toByteArray(); String filePath = request.getRealPath("/photo"); //判断路径是否存在,若不存在则创建路径 File upDir = new File(filePath); if (!upDir.exists()) { upDir.mkdir(); } //生成随机文件名 saveName = UUID.randomUUID().toString(); ; String fileName = saveName + ".jpg"; //写图片 File f = new File(filePath+"\\" + fileName); DataOutputStream dos = new DataOutputStream(new FileOutputStream(f)); dos.write(data); dos.flush(); dos.close(); response.setContentType("text/xml"); response.getWriter().write("http://localhost:8080/zaixianpaizhao/photo/" + fileName); } catch(Exception ex) { response.setContentType("text/xml"); response.getWriter().write("保存失败"+":"+saveName); } } }