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我的项目介绍
在线共享网盘采纳jsp+servlet搭建我的项目构造实现共享网盘，我的项目分为管理员，普通用户和付费用户三种角色，依据不同角色管制不同权限，实现不同用户对集体文件文件，所有文件，共享文件的增删改查操作。
我的项目适用人群
正在做毕设的学生，或者须要我的项目实战练习的Java学习者
开发环境：
- jdk 8
- intellij idea
- tomcat 8.5.40
- mysql 5.7
所用技术：
- jsp+servlet
- js+ajax
- layUi
- jdbc直连
我的项目拜访地址
http://localhost:8090我的项目构造
我的项目截图
- 注册
- 我的网盘
- 我的共享
- 回收站
- 会员充值
- 管理员-所有文件
- 管理员-共享申请
要害代码:
1.初始化工作
//数据库连贯初始化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 ，读取配置文件中对于上传的信息 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"); //配置上传长期目录 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
//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">×</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"> 敞开 </button> <input type="submit" class="btn btn-primary" value="确定上传"/> </div> </div> </form> </div>//后端入库解决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++; } //文件门路是否存在 if(!file.getParentFile().exists()){ file.getParentFile().mkdirs(); } try { fileItem.write(file); //上传胜利，数据库保留记录 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.检索反复上传的资源
//这里上传在下面上传资源时候，将保留原始资源名字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)); userFile.setSharedReason(rs.getString("SharedReason")); userFile.setSharedTime(rs.getString("SharedTime")); fileList.add(userFile); } return fileList;}4.平台会员充值
//前端jsp代码<body> <div id="wrapper"> <%@include file="common/nav.jsp" %> <div id="page-wrapper"> <div class=""> <div class="col-md-12"> <h1 class="margin-bottom-15">以下是微信付款码，扫码即可领取</h1> <div class="form-group"> <div class="col-md-12"> <div class="control-wrapper"> <div class="text-center" id="div1"> <input type="submit" value="扫码付款" class="btn btn-success"> </div> <div class="text-center" id="div2" style="display: none;"> <input type="submit" value="祝贺您，实现扫码领取！"class="btn btn-warning"> </div> </div> <div class="text-center"> <font color="green">${msgSuccess }</font> <font color="red">${msgFail }</font> </div> </div> </div> <form class="form-horizontal templatemo-container templatemo-login-form-1 margin-bottom-30" role="form" action="user" method="post"> <input type="hidden" name="action" value="editSubmit"> <div class="form-group"> <img src="static/image/pay.png" alt="平台会员充值码" style="width: 81%; padding-left: 24%;"> </div> </form> </div> </div> </div> </div></body>//js实现,采纳定时跳转模仿实在用户领取流程，后续进行改变用户会员状态var test1 = setTimeout(function(){ $("#div1").css("display","none"); $("#div2").css("display","block"); layer.msg('祝贺您，实现扫码领取！', {time: 4000, icon:6},function () { window.location.href="user?action=doTopUp"; }); clearTimeout(test1);},5000);//后端代码public void doTopUp(User user) { Connection conn = db.getConnection(); PreparedStatement ps = null; ResultSet rs = null; try { //members=1为会员状态 ps = conn.prepareStatement("update user set members = 1 where id = ?"); ps.setInt(1, user.getId()); ps.execute(); } catch (SQLException e) { e.printStackTrace(); } finally { try { if (conn != null) conn.close(); if (ps != null) ps.close(); if (rs != null) rs.close(); } catch (SQLException e) { e.printStackTrace(); } }}我的项目后续
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