cymlancy
cymlancy

uploadANDdowload

1.       把图片写入硬盘

// 获取线路code

                  code = util.getCircuitryCode(orgCode, po.getStartplace(),po.getTargetplace(), String.valueOf(po.getTraveldays()));

 

                  //工程类路径,用来获取保存头像的路径

                  String url = request.getSession().getServletContext()

                         .getRealPath(request.getRequestURI());

                  int a = url.lastIndexOf(File.separator);

                  url = url.substring(0, a);

                  StringBuffer dirPath =new StringBuffer(url).append(

                         File.separator).append("picture");

 

                  filePath = fileItem.getName();

                  if (filePath !=null && !"".equalsIgnoreCase(filePath)) {

                     //创建文件夹

                     createdir[微软用户1] (code, dirPath);

                     TAttachment ta =new TAttachment();

                     //获取图片或文件的名字

                     fileName = filePath.substring(filePath.lastIndexOf("\\") + 1);

 

                     //循环图片名字判断是否有重复的

                     for (int i = 0; i < pathnameList.size(); i++) {

                         String beforFileName = (String) pathnameList.get(i);

                         if (beforFileName.equals(fileName)) {

                           fileName ="little"+ i+ filePath.substring(filePath.lastIndexOf("\\") + 1);

                         }

                     }

                     dirPath.append("/");

                     outPath = dirPath.toString() + fileName;

                     //写入文件

                     if (!"".equals(filePath)) {

                         ins = fileItem.getInputStream();

                         os = new FileOutputStream(outPath);

                         bytesRead = 0;

                         buffer =newbyte[4096];

                         while ((bytesRead = ins.read(buffer, 0, 4096)) != -1) {

                            os.write(buffer, 0, bytesRead);

                         }

                         buffer =null;

                         os.close();

                         ins.close();

                     }

                     fileSize = fileItem.getSize();

                     //把图片名字添加到list中，以便判断是否有相同的图片名字

                     pathnameList.add(fileName);

                     extend1 = fileName.substring(fileName.lastIndexOf(".") + 1);

                     byte[] bytes =newbyte[12];

                     ta.setName(fileName);

                     ta.setContexts(bytes);

                     ta.setCreatetime(new Date());

                     ta.setCreatorid(creatorid);

                     ta.setCreatororgid(creatororgid);

                     ta.setCreatorip(ip);

                     ta.setExtend(extend1);

                     ta.setFilepath("/picture/circuitryPictrue/" + code

                            + "/" + fileName);

 

 

 

 

 

 

 

 

 

 

 

 

2.    复制

code = util.getCircuitryCode(orgCode, po.getStartplace(),po.getTargetplace(), String.valueOf(po.getTraveldays()));

                  //工程类路径,用来获取保存头像的路径

                  String url = request.getSession().getServletContext().getRealPath(request.getRequestURI());

                  int a = url.lastIndexOf(File.separator);

                  url = url.substring(0, a);

                  StringBuffer dirPaths =new StringBuffer(url);//用来删除文件用的

                  StringBuffer dirPath =new StringBuffer(url).append(File.separator).append("picture");

                  String fileid = fileItem.getFieldName();// 用来获取浏览文本框的ID

                  filePath = fileItem.getName();

                  //获取图片或文件的名字

                  fileName = filePath.substring(filePath.lastIndexOf("\\") + 1);

                  if (fileid.equals("haveBigPic")) {

                     if (filePath ==null || filePath.equals("")) {

                         type = "BIGPIC";

                         attachement =logic.getAttachment(relationId, type);

                         //调用复制的方法

                         filePath =copyPicture[微软用户2] (code, ip, filePath,creatororgid, creatorid, set_ta, tattBig,attachement, dirPaths, dirPath);

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3. 修改TAttachment ta =null;

                  //工程类路径,用来获取保存头像的路径

                  String url = request.getSession().getServletContext()

                         .getRealPath(request.getRequestURI());

                  int a = url.lastIndexOf(File.separator);

                  url = url.substring(0, a);

                  StringBuffer dirPath =new StringBuffer(url).append(

                         File.separator).append("picture");

                 

                  StringBuffer dirPaths =new StringBuffer(url);//此字符串用来删除文件夹的

                  String fileid = fileItem.getFieldName();// 用来获取浏览文本框的ID

                  filePath = fileItem.getName();

                  if (filePath !=null && !"".equalsIgnoreCase(filePath)) {

                     //创建文件夹

                     createdir(code, dirPath);

                     fileName = filePath.substring(filePath

                            .lastIndexOf("\\") + 1);

                     //调用处理图片同名的方法

                     fileName = picrename[微软用户3] (code, filePath, fileName, po,

                            pathnameList, dirPaths, fileid);

                     dirPath.append("/");

                     outPath = dirPath.toString() + fileName;

                     //写入文件说

                     if (!"".equals(filePath)) {

                         ins = fileItem.getInputStream();

                         os = new FileOutputStream(outPath);

                         bytesRead = 0;

                         buffer =newbyte[4096];

                         while ((bytesRead = ins.read(buffer, 0, 4096)) != -1) {

                            os.write(buffer, 0, bytesRead);

                         }

                         buffer =null;

                         os.close();

                         ins.close();

                     }

                     fileSize = fileItem.getSize();

                     pathnameList.add(fileName);//把filename存入list，用来判断图片重名

                     extend1 = fileName

                            .substring(fileName.lastIndexOf(".") + 1);

                     byte[] bytes =newbyte[12];

                     Set ts = po.getTAttachments();

                     Iterator it = ts.iterator();

                     boolean flag =false;

                     if ("haveBigPic".equalsIgnoreCase(fileItem

                            .getFieldName())) {

                         while (it.hasNext()) {

                            ta = (TAttachment) it.next();

                            if (Constants.C_ATTACHMENT_TYPE_BIG

                                   .equalsIgnoreCase(ta.getType())) {

                                flag = true;

                                break;

                            }

                         }

                     } elseif ("haveLittlePic".equalsIgnoreCase(fileItem

                            .getFieldName())) {

                         while (it.hasNext()) {

                            ta = (TAttachment) it.next();

                            if (Constants.C_ATTACHMENT_TYPE_SMALL.equalsIgnoreCase(ta.getType())) {

                                flag =true;

                                break;

                            }

                         }

                     } elseif ("haveWordFile".equalsIgnoreCase(fileItem

                            .getFieldName())) {

                         while (it.hasNext()) {

                            ta = (TAttachment) it.next();

                            if (Constants.C_ATTACHMENT_TYPE_DOC

                                    .equalsIgnoreCase(ta.getType())) {

                                flag = true;

                                break;

                            }

                         }

                     }

                     if (flag) {

                         if (Constants.C_ATTACHMENT_TYPE_BIG

                                .equalsIgnoreCase(ta.getType())) {

                            if ("bmp".equalsIgnoreCase(extend1)

                                   ||"gif".equalsIgnoreCase(extend1)

                                   || "jpg".equalsIgnoreCase(extend1)

                                   || "jpeg".equalsIgnoreCase(extend1)

                                   || "tiff".equalsIgnoreCase(extend1)

                                   || "psd".equalsIgnoreCase(extend1)

                                   || "png".equalsIgnoreCase(extend1)

                                   || "swf".equalsIgnoreCase(extend1)) {

                                ta.setKind(Constants.C_ATTACHMENT_KIND_PHO);

                                ta.setType(Constants.C_ATTACHMENT_TYPE_BIG);

                            } else {

                                thrownew BusinessException("请上传正确的格式图片");

                            }

                         } elseif (Constants.C_ATTACHMENT_TYPE_SMALL

                                .equalsIgnoreCase(ta.getType())) {

                            if ("jpg".equalsIgnoreCase(extend1)) {

                                ta.setKind(Constants.C_ATTACHMENT_KIND_PHO);

                                ta

                                       .setType(Constants.C_ATTACHMENT_TYPE_SMALL);

                            } else {

                                thrownew BusinessException("请上传JPG格式图片");

                            }

                         } elseif (Constants.C_ATTACHMENT_TYPE_DOC

                                .equalsIgnoreCase(ta.getType())) {

                            if ("doc".equalsIgnoreCase(extend1)

                                   ||"pdf".equalsIgnoreCase(extend1)

                                   || "xls".equalsIgnoreCase(extend1)) {

                                ta.setKind(Constants.C_ATTACHMENT_KIND_DOC);

                                ta.setType(Constants.C_ATTACHMENT_TYPE_DOC);

                            } else {

                                thrownew BusinessException(

                                      "请上传WORD文档或PDF文件");

                            }

                         }

                         ta.setContexts(bytes);

                         ta.setName(fileName);

                         ta.setContexts(bytes);

                         ta.setCreatetime(new Date());

                         ta.setCreatorid(changerid);

                         ta.setCreatororgid(changerorgid);

                         ta.setCreatorip(ip);

                         ta.setExtend(extend1);

                         ta.setFilepath("/picture/circuitryPictrue/" + code

                                + "/" + fileName);

                         ta.setFilesize(String.valueOf(fileSize));

                         set.add(ta);

 

 

 

3.    读取到界面

    //把图片读入页面

    public ActionForward readpic(ActionMapping mapping, ActionForm form,

           HttpServletRequest request, HttpServletResponse response)

           throws Exception {

       File uploadFile = null;

       try {

           String id = request.getParameter("id");

           TAttachment t = (TAttachment)logic.getDao().getHibernateTemplate()

                  .get(TAttachment.class, id);

           //获取取数据库中的filepath路径

           String bytes = t.getFilepath();

           //工程类路径,用来获取保存头像的路径

           String url = request.getSession().getServletContext().getRealPath(

                  request.getRequestURI());

           int a = url.lastIndexOf(File.separator);

           url = url.substring(0, a);

           BufferedInputStream bis =null;

           BufferedOutputStream bos =null;

           OutputStream fos = null;

           InputStream fis = null;

           String filepath = bytes;

           uploadFile = new File(url + filepath);

           fis = new FileInputStream(uploadFile);

           bis = new BufferedInputStream(fis);

           fos = response.getOutputStream();

           bos = new BufferedOutputStream(fos);

           //这个就就是弹出下载对话框的关键代码

           // response.setHeader("Content-disposition", "attachment;filename="

           // + URLEncoder.encode(bytes, "utf-8"));

           int bytesRead = 0;

           //用输入流进行先读，然后用输出流去写

           byte[] buffer =newbyte[8192];

           while ((bytesRead = bis.read(buffer, 0, 8192)) != -1) {

              bos.write(buffer, 0, bytesRead);

           }

           bos.flush();

           fis.close();

           bis.close();

           fos.close();

           bos.close();

       } catch (Exception ex) {

           return mapping.findForward("error");

       }

       returnnull;

4.       }

 

 

 

5下载附件，如word，pdf等等

public ActionForward download(ActionMapping mapping, ActionForm form,

           HttpServletRequest request, HttpServletResponse response)

           throws Exception {

       byte[] buffer;

       InputStream ins;

       String id = "", dirPaths, filepath;

       try {

           //工程类路径,用来获取保存头像的路径

           String url = request.getSession().getServletContext().getRealPath(

                  request.getRequestURI());

           int a = url.lastIndexOf(File.separator);

           url = url.substring(0, a);

 

           id = request.getParameter("id");

           TAttachment ta = (TAttachment)logic.load(TAttachment.class, id);

           filepath = ta.getFilepath();

           dirPaths = url + filepath;

 

           //读取文件

           if (!"".equals(dirPaths)) {

              ins = new FileInputStream(dirPaths);

              int bytesRead = 0;

              buffer = newbyte[4096];

              response.setContentType("application/x-msdownload");

              response.setHeader("Content-Disposition","attachment;"

                     + " filename="

                     + new String(ta.getName().getBytes(),"ISO-8859-1"));

              while ((bytesRead = ins.read(buffer, 0, 4096)) != -1) {

                  logic.write(response.getOutputStream(), buffer);

              }

              buffer = null;

              ins.close();

           }

       } catch (Exception ex) {

           request.setAttribute(Constants.C_ERROR_MSG,"文件下载出现错误");

           return mapping.findForward("error");

       }

       returnnull;

    }

 

 

 

 

 

 

 

6．Byte转换为输入流

// 获取没有存入到硬盘的图片，然后把图片添加到硬盘

    public ActionForward movePitureToDir(ActionMapping mapping,

           ActionForm form, HttpServletRequest request,

           HttpServletResponse response)throws Exception {

       String outPath = "", fileName;

       byte[] buffer =null;

       OutputStream os = null;

       byte[] bytes =newbyte[12];

       byte[] bytes1;

       Map map = new HashMap();

       //工程类路径,用来获取保存图片的路径

       String url = request.getSession().getServletContext().getRealPath(request.getRequestURI());

       int a = url.lastIndexOf(File.separator);

       url = url.substring(0, a);

       StringBuffer dirPath = new StringBuffer(url).append(File.separator).append("picture");

 

       //查找附件信息

       List list = logic.getAttamentsByfilePath("/picture/circuitryPictrue");

       if (list !=null) {

           //创建文件夹picture

           File fpath = new File(dirPath.toString());

           if (!fpath.exists()) {

              fpath.mkdir();

           }

           //创建用户照片文件夹

           dirPath.append("/").append("circuitryPictrue");

           fpath = new File(dirPath.toString());

           if (!fpath.exists()) {

              fpath.mkdir();

           }

           dirPath.append("/");

           for (int i = 0; i < list.size(); i++) {

              map = (Map) list.get(i);

              String id = map.get("id").toString();

              TAttachment attaches =logic.getAttachment(id);

              TCircuitry tc = (TCircuitry)logic.getDao().getHibernateTemplate().get(TCircuitry.class,attaches.getRelationid());

              if (tc !=null) {

                  StringBuffer strbf =new StringBuffer(dirPath);

                  //创建某条线路的图片文件夹

                  strbf.append(tc.getCode());

                  fpath = new File(strbf.toString());

                  //如果用户文件夹不存在，则创建用户文件夹

                  if (!fpath.exists()) {

                     fpath.mkdir();

                  }

 

                  //获取图片的名字

                  fileName = attaches.getName();

                  strbf.append("/");

                  outPath = strbf.toString() + fileName;

                  if (!"".equals(attaches.getFilepath()) && attaches.getFilepath()!=null && !"".equals(attaches.getContexts()) && attaches.getContexts()!=null) {

                     bytes1 = attaches.getContexts();

                     //把字节转换为输入流

                     ByteArrayInputStream bis =new ByteArrayInputStream(bytes1);

                     os = new FileOutputStream(outPath);

                     buffer = newbyte[4096];

                     int len = 0;

                     while ((len = bis.read(buffer)) != -1) {

                         os.write(buffer, 0, len);

                     }

                     buffer = null;

                     bis.close();

                     os.close();

                     attaches.setFilepath("/picture/circuitryPictrue/"+ tc.getCode() +"/" + fileName);

                     attaches.setContexts(bytes);

                     logic.update(attaches);

                  }

                 

              } else {

                  logic.deleteAttachmentById(id);

               }

           }

       }

       returnthis.init(mapping, form, request, response);

    }

 

 

 

7.删除文件夹中的文件

    /**

     *根据用户id查找图片，把没有存入磁盘的数据存入磁盘

     *

     *@parammapping

     *@paramform

     *@paramrequest

     *@paramresponse

     *@return

     *@throwsException

     */

    public ActionForward findPicture(ActionMapping mapping, ActionForm form,

           HttpServletRequest request, HttpServletResponse response)

           throws Exception {

       String outPath = "", fileName;

       byte[] buffer =null;

       OutputStream os = null;

       byte[] bytes =newbyte[12];

       byte[] bytes1;

       //工程类路径,用来获取保存头像的路径

       String url = request.getSession().getServletContext().getRealPath(

              request.getRequestURI());

       int a = url.lastIndexOf(File.separator);

       url = url.substring(0, a);

       StringBuffer dirPath = new StringBuffer(url).append(File.separator)

              .append("picture");

       UserBusIface service = (UserBusIface)this.getObject();

       List list = service.getUnloadAttachement(FileTypeEnum.USERPIC,

              "/picture/userPhoto");

 

       if (list !=null) {

           //创建文件夹picture

           File fpath = new File(dirPath.toString());

           if (!fpath.exists()) {

              fpath.mkdir();

           }

           //创建用户照片文件夹

           dirPath.append("/").append("userPhoto");

           fpath =new File(dirPath.toString());

           if (!fpath.exists()) {

              fpath.mkdir();

           }

           dirPath.append("/");

           for (int i = 0; i < list.size(); i++) {

              AttachmentPO attache = (AttachmentPO) list.get(i);

              UserVO userpo = service.gainUserById(attache.getRelationId());

              if (userpo !=null) {

                  StringBuffer strbf =new StringBuffer(dirPath);

                  //创建某个用户的图片文件夹

                  strbf.append(userpo.getCode());

                  fpath =new File(strbf.toString());

                  //如果用户文件夹不存在，则创建用户文件夹

                  if (!fpath.exists()) {

                     fpath.mkdir();

                  } else {

                     //调用删除文件夹及文件夹的内容方法

                     deleteAll[微软用户4] (fpath);

                     fpath.mkdir();

                  }

                  // 获取图片的名字

                  fileName = attache.getName();

                  strbf.append("/");

                  outPath = strbf.toString() + fileName;

                  if (!"".equals(attache.getFilePath()) && attache.getFilePath()!=null && !"".equals(attache.getContexts()) && attache.getContexts()!=null) {

                     bytes1 = attache.getContexts();

                     ByteArrayInputStream bis =new ByteArrayInputStream(bytes1);

                     os = new FileOutputStream(outPath);

                     buffer = newbyte[4096];

                     int len = 0;

                     while ((len = bis.read(buffer)) != -1) {

                         os.write(buffer, 0, len);

                     }

                     buffer = null;

                     bis.close();

                     os.close();

                     attache.setFilePath("/picture/userPhoto/"

                            + userpo.getCode() +"/" + fileName);

                     attache.setContexts(bytes);

                     service.update(attache);

                  }

                 

              }

           }

       }

       returnthis.manageUserinfoPage(mapping, form, request, response);

    }

 [微软用户1]   // 创建文件夹

    privatevoidcreatedir(String code, StringBuffer dirPath) {

       //创建文件夹picture

       File fpath = new File(dirPath.toString());

       if (!fpath.exists()) {

           fpath.mkdir();

       }

 

       //创建用户照片文件夹

       dirPath.append("/").append("circuitryPictrue");

       fpath = new File(dirPath.toString());

       if (!fpath.exists()) {

           fpath.mkdir();

       }

 

       //创建某个用户的图片文件夹

       dirPath.append("/").append(code);

       fpath = new File(dirPath.toString());

       if (!fpath.exists()) {

           fpath.mkdir();

       }

    }

 [微软用户2]   // 复制的方法

    private StringcopyPicture(String code, String ip, String filePath,

           String creatororgid, String creatorid, Set set_ta,

           TAttachment tattBig, List attachement, StringBuffer dirPaths,

           StringBuffer dirPath)throws FileNotFoundException, IOException {

       String fileName;

       String outPath;

       int bytesRead;

       byte[] buffer;

       InputStream ins;

       OutputStream os;

       if (attachement !=null && attachement.size() > 0) {

           //创建文件夹

           createdir(code, dirPath);

           TAttachment tatt = (TAttachment) attachement.get(0);

           filePath = tatt.getFilepath();

           //获取图片路径和文件的名字

           fileName = filePath.substring(filePath.lastIndexOf("\\") + 1);

           int b = fileName.lastIndexOf("/") + 1;

           fileName = fileName.substring(b);

           dirPath.append("/");

           outPath = dirPath.toString() + fileName;

           //写入文件

           if (!"".equals(filePath)) {

              ins = new FileInputStream(dirPaths + filePath);

              os = new FileOutputStream(outPath);

              bytesRead = 0;

              buffer = newbyte[4096];

              while ((bytesRead = ins.read(buffer, 0, 4096)) != -1) {

                  os.write(buffer, 0, bytesRead);

              }

              buffer = null;

              os.close();

              ins.close();

           }

           tattBig.setContexts(tatt.getContexts());

           tattBig.setCreatetime(new Date());

           tattBig.setCreatorid(creatorid);

           tattBig.setCreatorip(ip);

           tattBig.setCreatororgid(creatororgid);

           tattBig.setExtend(tatt.getExtend());

           tattBig.setFilepath("/picture/circuitryPictrue/" + code +"/"+ fileName);

           tattBig.setFilesize(tatt.getFilesize());

           tattBig.setKind(tatt.getKind());

           tattBig.setName(tatt.getName());

           tattBig.setType(tatt.getType());

           set_ta.add(tattBig);

       }

       return filePath;

    }

 [微软用户3]   // 处理同名的图片方法

    private Stringpicrename(String code, String filePath, String fileName,

           TCircuitry po, List pathnameList, StringBuffer dirPaths,

           String fileid) throws SysException {

       File fpaths;

       List attachetype;

       TAttachment tat;

       //把传过来的图片路径字段查询附件，看是否存在相同的图片，如果有相同的，则添加到pathnameList中

       String filena = "/picture/circuitryPictrue/" + code + "/" + fileName;

       List listpic = logic.getAttachmentbyId(po.getId(), filena);

       if (listpic !=null && listpic.size() > 0) {

           TAttachment tatt = (TAttachment) listpic.get(0);

           String filep = tatt.getFilepath();

           int b = filep.lastIndexOf("/") + 1;

           filep = filep.substring(b);

           pathnameList.add(filep);

       }

       //循环pathnameList判断是否有重名的图片

       if (pathnameList !=null && pathnameList.size() > 0) {

           for (int i = 0; i < pathnameList.size(); i++) {

              String beforFileName = (String) pathnameList.get(i);

              if (fileid.equals("haveBigPic")

                     && beforFileName.equals(fileName)) {

                  fileName = "big"+ i+ 1+ filePath

                                .substring(filePath.lastIndexOf("\\") + 1);

                  attachetype = logic.getAttachment(po.getId(), "BIGPIC");

                  if (attachetype !=null && attachetype.size() > 0) {

                     tat = (TAttachment) attachetype.get(0);

                     //删除图片磁盘原来的大图片

                     dirPaths = dirPaths.append(tat.getFilepath());

                     fpaths = new File(dirPaths.toString());

                     if (fpaths.exists()) {

                         fpaths.delete();

                     }

                  }

              }

              if (fileid.equals("haveLittlePic")

                     && beforFileName.equals(fileName)) {

                  fileName = "little"

                         + i

                         + 1

                         + filePath

                                .substring(filePath.lastIndexOf("\\") + 1);

                  attachetype = logic.getAttachment(po.getId(), "LITTLEPIC");

                  if (attachetype !=null && attachetype.size() > 0) {

                     tat = (TAttachment) attachetype.get(0);

                     //删除磁盘原来的小图片

                     dirPaths = dirPaths.append(tat.getFilepath());

                     fpaths = new File(dirPaths.toString());

                     if (fpaths.exists()) {

                         fpaths.delete();

                     }

                  }

              }

              else {

                  if (fileid.equals("haveBigPic")) {

                     attachetype =logic.getAttachment(po.getId(),"BIGPIC");

                     if (attachetype !=null && attachetype.size() > 0) {

                         tat = (TAttachment) attachetype.get(0);

                         //删除图片

                         dirPaths = dirPaths.append(tat.getFilepath());

                         fpaths =new File(dirPaths.toString());

                         if (fpaths.exists()) {

                            fpaths.delete();

                         }

                     }

                  }

                  if (fileid.equals("haveLittlePic")) {

                     attachetype =logic.getAttachment(po.getId(),

                            "LITTLEPIC");

                     if (attachetype !=null && attachetype.size() > 0) {

                         tat = (TAttachment) attachetype.get(0);

                         //删除图片

                         dirPaths = dirPaths.append(tat.getFilepath());

                         fpaths =new File(dirPaths.toString());

                         if (fpaths.exists()) {

                            fpaths.delete();

                         }

                     }

                  }

                  if (fileid.equals("haveWordFile")) {

                     attachetype =logic.getAttachment(po.getId(),"WORD");

                      if (attachetype !=null && attachetype.size() > 0) {

                         tat = (TAttachment) attachetype.get(0);

                         //删除图片

                         dirPaths = dirPaths.append(tat.getFilepath());

                         fpaths =new File(dirPaths.toString());

                         if (fpaths.exists()) {

                             fpaths.delete();

                         }

                     }

                  }

              }

           }

       } else {

           if (fileid.equals("haveBigPic")) {

              attachetype = logic.getAttachment(po.getId(), "BIGPIC");

              if (attachetype !=null && attachetype.size() > 0) {

                  tat = (TAttachment) attachetype.get(0);

                  //删除图片

                  dirPaths = dirPaths.append(tat.getFilepath());

                  fpaths = new File(dirPaths.toString());

                  if (fpaths.exists()) {

                     fpaths.delete();

                  }

              }

           }

           if (fileid.equals("haveLittlePic")) {

              attachetype = logic.getAttachment(po.getId(), "LITTLEPIC");

              if (attachetype !=null && attachetype.size() > 0) {

                  tat = (TAttachment) attachetype.get(0);

                  //删除图片

                  dirPaths = dirPaths.append(tat.getFilepath());

                  fpaths = new File(dirPaths.toString());

                  if (fpaths.exists()) {

                     fpaths.delete();

                  }

              }

           }

           if (fileid.equals("haveWordFile")) {

              attachetype = logic.getAttachment(po.getId(), "WORD");

              if (attachetype !=null && attachetype.size() > 0) {

                  tat = (TAttachment) attachetype.get(0);

                  //删除图片

                  dirPaths = dirPaths.append(tat.getFilepath());

                  fpaths = new File(dirPaths.toString());

                  if (fpaths.exists()) {

                     fpaths.delete();

                  }

              }

           }

       }

       return fileName;

    }

 [微软用户4]   /**

     *删除硬盘中文件夹中的方法

     *

     *@paramf

     */

    publicstaticvoiddeleteAll(File f) {

 

       if (f.isFile()) {

           f.delete();

       } else {

           //获得当前文件夹下的所有子文件和子文件夹

           File f1[] = f.listFiles();

           //循环处理每个对象

           int len = f1.length;

           for (int i = 0; i < len; i++) {

              //递归调用，处理每个文件对象

              deleteAll(f1[i]);

           }

           //删除当前文件夹

           f.delete();

       }

    }

你可能感兴趣的:(uploadANDdowload)

  • uploadANDdowload cymlancy
    1.      把图片写入硬盘//获取线路code                 code=util.getCircuitryCode(orgCode,po.getStartplace(),po.getTargetplace(),String.valueOf(po.getTraveldays()));                  //工程类路径,用来获取保存头像的路径           
  • 戴尔笔记本win8系统改装win7系统 sophia天雪 win7戴尔改装系统win8
    戴尔win8 系统改装win7 系统详述 第一步：使用U盘制作虚拟光驱：         1）下载安装UltraISO：注册码可以在网上搜索。         2）启动UltraISO，点击“文件”—》“打开”按钮，打开已经准备好的ISO镜像文
  • BeanUtils.copyProperties使用笔记 bylijinnan java
    BeanUtils.copyProperties VS PropertyUtils.copyProperties 两者最大的区别是： BeanUtils.copyProperties会进行类型转换，而PropertyUtils.copyProperties不会。 既然进行了类型转换，那BeanUtils.copyProperties的速度比不上PropertyUtils.copyProp
  • MyEclipse中文乱码问题 0624chenhong MyEclipse
    一、设置新建常见文件的默认编码格式，也就是文件保存的格式。 在不对MyEclipse进行设置的时候，默认保存文件的编码，一般跟简体中文操作系统（如windows2000，windowsXP）的编码一致，即GBK。 在简体中文系统下，ANSI 编码代表 GBK编码;在日文操作系统下，ANSI 编码代表 JIS 编码。 Window-->Preferences-->General -
  • 发送邮件 不懂事的小屁孩 send email
    import org.apache.commons.mail.EmailAttachment; import org.apache.commons.mail.EmailException; import org.apache.commons.mail.HtmlEmail; import org.apache.commons.mail.MultiPartEmail;
  • 动画合集 换个号韩国红果果 htmlcss
    动画 指一种样式变为另一种样式 keyframes应当始终定义0 100 过程 1 transition  制作鼠标滑过图片时的放大效果 css .wrap{ width: 340px;height: 340px; position: absolute; top: 30%; left: 20%; overflow: hidden; bor
  • 网络最常见的攻击方式竟然是SQL注入 蓝儿唯美 sql注入
    NTT研究表明，尽管SQL注入（SQLi）型攻击记录详尽且为人熟知，但目前网络应用程序仍然是SQLi攻击的重灾区。 信息安全和风险管理公司NTTCom Security发布的《2015全球智能威胁风险报告》表明，目前黑客攻击网络应用程序方式中最流行的，要数SQLi攻击。报告对去年发生的60亿攻击 行为进行分析，指出SQLi攻击是最常见的网络应用程序攻击方式。全球网络应用程序攻击中，SQLi攻击占
  • java笔记2 a-john java
    类的封装： 1，java中，对象就是一个封装体。封装是把对象的属性和服务结合成一个独立的的单位。并尽可能隐藏对象的内部细节（尤其是私有数据） 2，目的：使对象以外的部分不能随意存取对象的内部数据（如属性），从而使软件错误能够局部化，减少差错和排错的难度。 3，简单来说，“隐藏属性、方法或实现细节的过程”称为——封装。 4，封装的特性：       4.1设置
  • [Andengine]Error：can't creat bitmap form path “gfx/xxx.xxx” aijuans 学习Android遇到的错误
            最开始遇到这个错误是很早以前了，以前也没注意，只当是一个不理解的bug，因为所有的texture，textureregion都没有问题，但是就是提示错误。 昨天和美工要图片，本来是要背景透明的png格式，可是她却给了我一个jpg的。说明了之后她说没法改，因为没有png这个保存选项。 我就看了一下，和她要了psd的文件，还好我有一点
  • 自己写的一个繁体到简体的转换程序 asialee java转换繁体filter简体
              今天调研一个任务，基于java的filter实现繁体到简体的转换，于是写了一个demo，给各位博友奉上，欢迎批评指正。          实现的思路是重载request的调取参数的几个方法，然后做下转换。          
  • android意图和意图监听器技术 百合不是茶 android显示意图隐式意图意图监听器
    Intent是在activity之间传递数据;Intent的传递分为显示传递和隐式传递   显式意图：调用Intent.setComponent() 或 Intent.setClassName() 或 Intent.setClass()方法明确指定了组件名的Intent为显式意图，显式意图明确指定了Intent应该传递给哪个组件。   隐式意图;不指明调用的名称,根据设
  • spring3中新增的@value注解 bijian1013 javaspring@Value
            在spring 3.0中，可以通过使用@value，对一些如xxx.properties文件中的文件，进行键值对的注入，例子如下： 1.首先在applicationContext.xml中加入：  <beans xmlns="http://www.springframework.
  • Jboss启用CXF日志 sunjing logjbossCXF
    1. 在standalone.xml配置文件中添加system-properties：     <system-properties>        <property name="org.apache.cxf.logging.enabled" value=&
  • 【Hadoop三】Centos7_x86_64部署Hadoop集群之编译Hadoop源代码 bit1129 centos
      编译必需的软件 Firebugs3.0.0 Maven3.2.3 Ant JDK1.7.0_67 protobuf-2.5.0 Hadoop 2.5.2源码包       Firebugs3.0.0   http://sourceforge.jp/projects/sfnet_findbug
  • struts2验证框架的使用和扩展 白糖_ 框架xmlbeanstruts正则表达式
    struts2能够对前台提交的表单数据进行输入有效性校验，通常有两种方式： 1、在Action类中通过validatexx方法验证，这种方式很简单，在此不再赘述； 2、通过编写xx-validation.xml文件执行表单验证，当用户提交表单请求后，struts会优先执行xml文件，如果校验不通过是不会让请求访问指定action的。 本文介绍一下struts2通过xml文件进行校验的方法并说
  • 记录-感悟 braveCS 感悟
    再翻翻以前写的感悟，有时会发现自己很幼稚，也会让自己找回初心。   2015-1-11 1. 能在工作之余学习感兴趣的东西已经很幸福了； 2. 要改变自己，不能这样一直在原来区域，要突破安全区舒适区，才能提高自己，往好的方面发展； 3. 多反省多思考；要会用工具，而不是变成工具的奴隶； 4. 一天内集中一个定长时间段看最新资讯和偏流式博
  • 编程之美-数组中最长递增子序列 bylijinnan 编程之美
    import java.util.Arrays; import java.util.Random; public class LongestAccendingSubSequence { /** * 编程之美 数组中最长递增子序列 * 书上的解法容易理解 * 另一方法书上没有提到的是，可以将数组排序（由小到大）得到新的数组， * 然后求排序后的数组与原数
  • 读书笔记5 chengxuyuancsdn 重复提交struts2的token验证
    1、重复提交 2、struts2的token验证 3、用response返回xml时的注意 1、重复提交 (1)应用场景 (1-1)点击提交按钮两次。 (1-2)使用浏览器后退按钮重复之前的操作，导致重复提交表单。 (1-3)刷新页面 (1-4)使用浏览器历史记录重复提交表单。 (1-5)浏览器重复的 HTTP 请求。 (2)解决方法 (2-1)禁掉提交按钮 (2-2)
  • [时空与探索]全球联合进行第二次费城实验的可能性 comsci
         二次世界大战前后,由爱因斯坦参加的一次在海军舰艇上进行的物理学实验 -费城实验   至今给我们大家留下很多迷团.....      关于费城实验的详细过程,大家可以在网络上搜索一下,我这里就不详细描述了      在这里,我的意思是,现在
  • easy connect 之 ORA-12154: TNS: 无法解析指定的连接标识符 daizj oracleORA-12154
    用easy connect连接出现“tns无法解析指定的连接标示符”的错误，如下： C:\Users\Administrator>sqlplus username/[email protected]:1521/orcl SQL*Plus: Release 10.2.0.1.0 – Production on 星期一 5月 21 18:16:20 2012 Copyright (c) 198
  • 简单排序:归并排序 dieslrae 归并排序
    public void mergeSort(int[] array){ int temp = array.length/2; if(temp == 0){ return; } int[] a = new int[temp]; int
  • C语言中字符串的\0和空格 dcj3sjt126com c
       \0 为字符串结束符，比如说：                       abcd (空格)cdefg； 存入数组时，空格作为一个字符占有一个字节的空间，我们
  • 解决Composer国内速度慢的办法 dcj3sjt126com Composer
    用法： 有两种方式启用本镜像服务： 1 将以下配置信息添加到 Composer 的配置文件 config.json 中（系统全局配置）。见“例1” 2 将以下配置信息添加到你的项目的 composer.json 文件中（针对单个项目配置）。见“例2” 为了避免安装包的时候都要执行两次查询，切记要添加禁用 packagist 的设置，如下 1 2 3 4 5
  • 高效可伸缩的结果缓存 shuizhaosi888 高效可伸缩的结果缓存
    /** * 要执行的算法，返回结果v */ public interface Computable<A, V> { public V comput(final A arg); }   /** * 用于缓存数据 */ public class Memoizer<A, V> implements Computable<A,
  • 三点定位的算法 haoningabc c算法
    三点定位， 已知a,b,c三个顶点的x,y坐标 和三个点都z坐标的距离，la，lb,lc 求z点的坐标 原理就是围绕a,b,c 三个点画圆，三个圆焦点的部分就是所求 但是，由于三个点的距离可能不准，不一定会有结果， 所以是三个圆环的焦点，环的宽度开始为0，没有取到则加1 运行 gcc -lm test.c test.c代码如下 #include "stdi
  • epoll使用详解 jimmee clinux服务端编程epoll
    epoll - I/O event notification facility在linux的网络编程中，很长的时间都在使用select来做事件触发。在linux新的内核中，有了一种替换它的机制，就是epoll。相比于select，epoll最大的好处在于它不会随着监听fd数目的增长而降低效率。因为在内核中的select实现中，它是采用轮询来处理的，轮询的fd数目越多，自然耗时越多。并且，在linu
  • Hibernate对Enum的映射的基本使用方法 linzx0212 enumHibernate
      枚举   /** * 性别枚举 */ public enum Gender { MALE(0), FEMALE(1), OTHER(2); private Gender(int i) { this.i = i; } private int i; public int getI
  • 第10章 高级事件（下） onestopweb 事件
    index.html <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/
  • 孙子兵法 roadrunners 孙子兵法
    始计第一 孙子曰： 兵者，国之大事，死生之地，存亡之道，不可不察也。 故经之以五事，校之以计，而索其情：一曰道，二曰天，三曰地，四曰将，五 曰法。道者，令民于上同意，可与之死，可与之生，而不危也；天者，阴阳、寒暑 、时制也；地者，远近、险易、广狭、死生也；将者，智、信、仁、勇、严也；法 者，曲制、官道、主用也。凡此五者，将莫不闻，知之者胜，不知之者不胜。故校 之以计，而索其情，曰
  • MySQL双向复制 tomcat_oracle mysql
    本文包括: 主机配置 从机配置 建立主-从复制 建立双向复制   背景 按照以下简单的步骤: 参考一下： 在机器A配置主机(192.168.1.30) 在机器B配置从机(192.168.1.29) 我们可以使用下面的步骤来实现这一点   步骤1：机器A设置主机 在主机中打开配置文件 ,
  • zoj 3822 Domination(dp) 阿尔萨斯 Mina
    题目链接：zoj 3822 Domination 题目大意：给定一个N∗M的棋盘，每次任选一个位置放置一枚棋子，直到每行每列上都至少有一枚棋子，问放置棋子个数的期望。 解题思路：大白书上概率那一张有一道类似的题目，但是因为时间比较久了，还是稍微想了一下。dp[i][j][k]表示i行j列上均有至少一枚棋子，并且消耗k步的概率（k≤i∗j）,因为放置在i+1~n上等价与放在i+1行上，同理
按字母分类： ABCDEFGHIJKLMNOPQRSTUVWXYZ其他