毕设课设-java共享网盘jsp+servlet文件管理系统.zip

# OnlineDisk 毕设java共享网盘 程序有问题就找[程序帮](http://suo.nz/530ijn)：QQ1022287044 项目介绍 ---- > 在线共享网盘采用jsp+servlet搭建项目结构实现共享网盘，项目分为管理员，普通用户和会员三种角色，根据不同角色控制不同权限，实现不同用户对个人文件文件，所有文件，共享文件的增删改查操作。 项目适用人群 ---- 正在做毕设的学生，或者需要项目实战练习的Java学习者 开发环境： ----- 1. jdk 8 2. intellij idea 3. tomcat 8.5.40 4. mysql 5.7 所用技术： ----- 1. jsp+servlet 2. js+ajax 3. layUi 4. jdbc直连 项目访问地址 --- ``` http://localhost:8090 ``` 项目结构 -----  项目截图 ---- - 注册  - 我的网盘  - 我的共享  - 会员充值  - 管理员-所有文件  - 管理员-共享文件  关键代码: ----- 1.初始化工作 ```diff //数据库连接初始化 public class DBInfo { String url = null; String username = null; String password = null; String driverClass = null; private static DBInfo db = new DBInfo(); public static DBInfo getInstance(){ return db; } private DBInfo() { InputStream in = this.getClass().getClassLoader().getResourceAsStream("db.properties"); Properties pp = new Properties(); try { pp.load(in); url = pp.getProperty("jdbc.url"); username = pp.getProperty("jdbc.username"); password = pp.getProperty("jdbc.password"); driverClass = pp.getProperty("jdbc.driver"); Class.forName(driverClass); } catch (Exception e) { e.printStackTrace(); }finally{ try { in.close(); } catch (IOException e) { e.printStackTrace(); } } } public Connection getConnection(){ Connection conn = null; try { conn = DriverManager.getConnection(url, username, password); } catch (Exception e) { e.printStackTrace(); } return conn; } } //上传资源初始化 public void init() throws ServletException { super.init(); //servlet启动时 ，读取配置文件中关于上传的信息 InputStream in = this.getClass().getClassLoader().getResourceAsStream("ini.properties"); Properties pp = new Properties(); try { pp.load(in); UPLOAD_ROOT_PATH = pp.getProperty("upload.path"); String tmpPath = pp.getProperty("tmp.path"); //配置上传临时目录 factory = new DiskFileItemFactory(1024*1024*10,new File(tmpPath)); stu = new ServletFileUpload(factory); } catch (Exception e) { e.printStackTrace(); }finally{ try { in.close(); } catch (IOException e) { e.printStackTrace(); } } } ``` 2.资源上传 ```diff //前端JSP代码 <div class="modal fade" id="uploadModal" tabindex="-1" role="dialog" aria-labelledby="uploadFile" aria-hidden="true"> <form action="upload" method="post" enctype="multipart/form-data"> <input type="hidden" name="from" value="user"> <div class="modal-dialog"> <div class="modal-content"> <div class="modal-header"> <button type="button" class="close" data-dismiss="modal" aria-hidden="true">&times;</button> <h4 class="modal-title" id="uploadFile">上传文件</h4> </div> <div class="modal-body"> <input type="file" name="file" value="上传文件"> </div> <div class="modal-footer"> <button type="button" class="btn btn-default" data-dismiss="modal"> 关闭 </button> <input type="submit" class="btn btn-primary" value="确定上传"/> </div> </div> </form> </div> //后端入库处理 protected void doPost(HttpServletRequest request, HttpServletResponse response) throws IOException { User user = (User) request.getSession().getAttribute(Const.SESSION_USER); String from=""; try { List<FileItem> fileItemLists = stu.parseRequest(request); for(FileItem fileItem : fileItemLists){ if(fileItem.isFormField()){ from = fileItem.getString(); }else{ //上传文件名 String fileName = fileItem.getName(); String oldfilename = fileItem.getName(); int index = fileName.lastIndexOf("\\"); if(index != -1) { fileName = fileName.substring(index+1); } String root = UPLOAD_ROOT_PATH+user.getUsername(); //获取文件大小 long size = fileItem.getSize(); String sizeString = StringUtil.computeSize(size); Timestamp upTime = new Timestamp(new Date().getTime()); File file = new File(root,fileName); //解决文件同名 int cnt = 1; while(file.exists()){ StringBuffer sb = new StringBuffer(fileName); sb.insert(sb.lastIndexOf("."), "("+cnt+")"); file = new File(root,sb.toString()); cnt++; } //文件路径是否存在 if(!file.getParentFile().exists()){ file.getParentFile().mkdirs(); } try { fileItem.write(file); //上传成功，数据库保存记录 UserFile userFile = new UserFile(); userFile.setCreateTime(upTime); userFile.setFilename(file.getName()); userFile.setFilename(file.getName()); userFile.setFileSize(sizeString); userFile.setIsShared(0); userFile.setOwnerId(user.getId()); userFile.setPath(file.getAbsolutePath()); userFile.setOldfilename(oldfilename); userFileDao.save(userFile); response.sendRedirect(from+"?action=mydisk"); } catch (Exception e) { e.printStackTrace(); response.getWriter().print("上传出错"); } } } } catch (FileUploadException e) { e.printStackTrace(); response.setContentType("text/html; charset=utf8"); response.getWriter().print("上传出错!!"); } } ``` 3.检索重复上传的资源 ``` //这里上传在上面上传资源时候，将保存原始资源名字 public List<UserFile> findRetrieveListByOwnerId(int ownerId,int isDelete){ List<UserFile> fileList = new ArrayList<UserFile>(); Connection conn = db.getConnection(); PreparedStatement ps = null; ResultSet rs = null; UserFile userFile = null; String sql="select * from file where oldfilename in ( " + " select a.oldfilename from (select oldfilename,count(id) counts from file GROUP BY oldfilename HAVING counts>1) a" + " ) and ownerid=? and isDelete=?"; ps = conn.prepareStatement(sql); ps.setInt(1, ownerId); ps.setInt(2, isDelete); rs = ps.executeQuery(); while(rs.next()){ userFile = new UserFile(); userFile.setId(rs.getInt(1)); userFile.setFilename(rs.getString(2)); userFile.setPath(rs.getString(3)); userFile.setCreateTime(rs.getTimestamp(4)); userFile.setIsShared(rs.getInt(5)); userFile.setOwnerId(rs.getInt(6)); userFile.setFileSize(rs.getString(7)); userFile.setCounts(rs.getInt(8));