java 下传图片同时获得图片的宽和高

java 上传图片同时获得图片的宽和高

public ActionForward upload(ActionMapping mapping, ActionForm form, HttpServletRequest request,HttpServletResponse response) throws IOException {FileForm fileForm = (FileForm) form;FormFile file1 = fileForm.getFile1();HashMap<String, Object> jsonMap = new HashMap<String, Object>();boolean success = false;String message = "";String fileURL = "";int width = 0;int height = 0;if (file1 != null) {//上传路径String dir = request.getSession(true).getServletContext().getRealPath("/uploadFile");OutputStream fos = null;try {// 获得文件后缀String type = file1.getFileName().substring(file1.getFileName().lastIndexOf("."),file1.getFileName().length());BufferedImage bi = ImageIO.read(file1.getInputStream());//System.out.println("Width=" + bi.getWidth());//System.out.println("Height=" + bi.getHeight());width = bi.getWidth();height = bi.getHeight();// 获取当前时间Calendar c = Calendar.getInstance();c.setTime(new Date());String time = "" + c.get(c.YEAR) + (c.get(c.MONTH) + 1) + c.get(c.DATE) + c.get(c.HOUR_OF_DAY)+ c.get(c.MINUTE) + c.get(c.SECOND);String newname = time + type;fileURL = "uploadFile/" + newname;fos = new FileOutputStream(dir + "/" + newname);fos.write(file1.getFileData(), 0, file1.getFileSize());fos.flush();success = true;message = "图片上传成功";} catch (Exception e) {// TODO Auto-generated catch blocke.printStackTrace();success = false;message = "图片上传失败";} finally {try {fos.close();} catch (Exception e) {success = false;message = "图片上传失败";}}}jsonMap.put("success", success);jsonMap.put("message", message);jsonMap.put("fileURL", fileURL);jsonMap.put("width", width);jsonMap.put("height", height);String json = Convert.mapTojson(jsonMap).toString();// 设置响应内容格式response.setContentType("text/html;charset=utf-8");// 获取流PrintWriter out = response.getWriter();// 将数据以json格式打到客户端out.print(json);// 清空缓存out.flush();// 关闭流out.close();//页面跳转return null;}