java 上传图片同时获得图片的宽和高
//??? ??? ??? ??? 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 block
??? ??? ??? ??? e.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;
??? }