工具：Eclipse，，smartupload.jar；语言：jsp，；数据存储：Oracle。
实现功能介绍：
主要是新建相册，可以建多个相册，在相册中添加多张照片，删除照片，删除相册，当相册下有照片时先删除照片才能删除相册。
因为每个相册和照片要有所属人，所以顺带有登录功能。
声明：只是后端实现代码，前台无任何样式，代码可行，仅供参考。
代码：
连接帮助类：
public class JDBCHelper { public static final String DRIVER = "oracle.jdbc.driver.OracleDriver"; public static final String URL = "jdbc:oracle:thin:@localhost:1521:xxxx"; public static final String DBNAME = "scott"; public static final String PASSWORD = "xxxx"; public static Connection getConn() throws Exception{ Class.forName(DRIVER); Connection conn = DriverManager.getConnection(URL, DBNAME, PASSWORD); return conn; } } 图片上传时，要修改图片名称，防止上传重名图片将上一张覆盖，这里的做法是将图片名改为由用户ID和精确到毫秒的时间组成，修改图片名的帮助类：
public class PhotoName { private String ip; public PhotoName(String ip) { super(); this.ip = ip; } public String getIp() { return ip; } public void setIp(String ip) { this.ip = ip; } public String getTime(){ Date date = new Date(); DateFormat df = new SimpleDateFormat("yyyyMMddHHmmssSSS"); return df.format(date); } public String getPhotoName(){ return this.ip + this.getTime(); } } 实现所有这些的接口类：
public interface UpDAO { /** * 创建相册名称 * */ public int creAlbum(AlbumPOJO ap); /** *显示所创建的所有相册名称 */ public List findAllAlbum(int id); public List findAllPhoto(int id); /** * 上传照片 */ public int upPhoto(PhotoPOJO pp); /** * 删除相册 * @param id 相册id * @return */ public int delAlbum(int id); /** * 删除照片 * @param id 照片id * @return */ public int delPhoto(int id); /** * 登录 * @param username * @param password * @return */ public UserPOJO login(String username,String password); } 接口的具体实现类：
public class UpDAOImpl implements UpDAO { /* (non-Javadoc) * @see cn.jvsun.DAO.UpDAO#creAlbum(cn.jvsun.POJO.AlbumPOJO) * 创建相册名称 */ public int creAlbum(AlbumPOJO ap) { int albumNum=this.getAlbumNum(); Connection conn = null; PreparedStatement pstate = null; try { conn=JDBCHelper.getConn(); conn.setAutoCommit(false); String sql="insert into album(id,a_name,user_id)values(?,?,?)"; pstate = conn.prepareStatement(sql); pstate.setInt(1, albumNum); pstate.setString(2,ap.getA_name()); pstate.setInt(3, ap.getUser_id()); pstate.execute(); conn.commit(); } catch (Exception e) { e.printStackTrace(); try { conn.rollback();//出问题就撤回，全不提交 } catch (SQLException e1) { e1.printStackTrace(); } }finally{ try { pstate.close(); conn.close(); } catch (SQLException e) { e.printStackTrace(); } } return albumNum; } /* (non-Javadoc) * @see cn.jvsun.DAO.UpDAO#upPhoto(java.lang.String, java.lang.String, int) * 上传照片 */ public int upPhoto(PhotoPOJO pp) { int pNum=this.getPhotoNum(); Connection conn = null; PreparedStatement pstate = null; try { conn=JDBCHelper.getConn(); conn.setAutoCommit(false); String sql="insert into photo(id,p_name,p_url,p_albumid)values(?,?,?,?)"; pstate = conn.prepareStatement(sql); pstate.setInt(1, pNum); pstate.setString(2,pp.getP_name()); pstate.setString(3, pp.getP_url()); pstate.setInt(4, pp.getP_albumId()); pstate.execute(); conn.commit(); } catch (Exception e) { e.printStackTrace(); try { conn.rollback();//出问题就撤回，全不提交 } catch (SQLException e1) { e1.printStackTrace(); } }finally{ try { pstate.close(); conn.close(); } catch (SQLException e) { e.printStackTrace(); } } return pNum; } /* (non-Javadoc) * @see cn.jvsun.DAO.UpDAO#delAlbum(int) * 删除相册 */ public int delAlbum(int id) { int result=0; Connection conn = null; PreparedStatement pstate = null; String sql="delete from album where id="+id+""; try { conn=JDBCHelper.getConn(); pstate = conn.prepareStatement(sql); result=pstate.executeUpdate(); } catch (SQLException e) { e.printStackTrace(); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); }finally{ try { pstate.close(); conn.close(); } catch (SQLException e) { // TODO Auto-generated catch block e.printStackTrace(); } } return result; } /* (non-Javadoc) * @see cn.jvsun.DAO.UpDAO#delPhoto(int) * 删除照片 */ public int delPhoto(int id) { int result=0; Connection conn = null; PreparedStatement pstate = null; String sql="delete from photo where id="+id+""; try { conn=JDBCHelper.getConn(); pstate = conn.prepareStatement(sql); result=pstate.executeUpdate(); } catch (SQLException e) { e.printStackTrace(); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); }finally{ try { pstate.close(); conn.close(); } catch (SQLException e) { // TODO Auto-generated catch block e.printStackTrace(); } } return result; } /* (non-Javadoc) * @see cn.jvsun.DAO.UpDAO#login(java.lang.String, java.lang.String) * 用户登录 */ public UserPOJO login(String username, String password) { UserPOJO user=null; Connection conn = null; PreparedStatement pstate = null; ResultSet res = null; try { conn=JDBCHelper.getConn(); String sql="select id,username from userinfo where username=? and password=?"; pstate = conn.prepareStatement(sql); pstate.setString(1, username); pstate.setString(2, password); res = pstate.executeQuery(); while(res.next()){ user=new UserPOJO(res.getInt(1),username,null); } } catch (Exception e) { e.printStackTrace(); }finally{ try { res.close(); pstate.close(); conn.close(); } catch (SQLException e) { e.printStackTrace(); } } return user; } /** * 相册序列号 */ public int getAlbumNum(){ int albumNum=-1; Connection conn = null; PreparedStatement pstate = null; ResultSet res = null; try { conn=JDBCHelper.getConn(); String sql="select aid.nextval from dual"; pstate=conn.prepareStatement(sql); res=pstate.executeQuery(); while(res.next()){ albumNum=res.getInt(1); } } catch (Exception e) { e.printStackTrace(); }finally{ try { res.close(); pstate.close(); conn.close(); } catch (SQLException e) { e.printStackTrace(); } } return albumNum; } /** *照片序列号 */ public int getPhotoNum(){ int photoNum=-1; Connection conn = null; PreparedStatement pstate = null; ResultSet res = null; try { conn=JDBCHelper.getConn(); String sql="select pid.nextval from dual"; pstate=conn.prepareStatement(sql); res=pstate.executeQuery(); while(res.next()){ photoNum=res.getInt(1); } } catch (Exception e) { e.printStackTrace(); }finally{ try { res.close(); pstate.close(); conn.close(); } catch (SQLException e) { e.printStackTrace(); } } return photoNum; } /* (non-Javadoc) * @see cn.jvsun.DAO.UpDAO#findAll() * 显示所创建的相册名 */ public List findAllAlbum(int id) { List list= new ArrayList (); Connection conn = null; PreparedStatement pstate = null; ResultSet res = null; try { conn=JDBCHelper.getConn(); String sql="select id,a_name,user_id from album where user_id=?"; pstate = conn.prepareStatement(sql); pstate.setInt(1, id); res = pstate.executeQuery(); while(res.next()){ AlbumPOJO ap=new AlbumPOJO(res.getInt(1),res.getString(2),res.getInt(3)); list.add(ap); } } catch (Exception e) { e.printStackTrace(); }finally{ try { res.close(); pstate.close(); conn.close(); } catch (SQLException e) { e.printStackTrace(); } } return list; } /* (non-Javadoc) * @see cn.jvsun.DAO.UpDAO#findAllPhoto(int) * 显示照片 */ public List findAllPhoto(int aid) { List list= new ArrayList (); Connection conn = null; PreparedStatement pstate = null; ResultSet res = null; try { conn=JDBCHelper.getConn(); String sql="select id,p_name,p_url from photo where P_ALBUMID=?"; pstate = conn.prepareStatement(sql); pstate.setInt(1, aid); res = pstate.executeQuery(); while(res.next()){ PhotoPOJO pojo=new PhotoPOJO(res.getInt(1),res.getString(2),res.getString(3), aid); list.add(pojo); } } catch (Exception e) { e.printStackTrace(); }finally{ try { res.close(); pstate.close(); conn.close(); } catch (SQLException e) { e.printStackTrace(); } } return list; } } 用户，相册，照片三个POJO类：
/** * 用户实体类 * */ public class UserPOJO implements Serializable{ private static final long serialVersionUID = 7554548269035753256L; private int id; private String username; private String password; public int getId() { return id; } public void setId(int id) { this.id = id; } public String getUsername() { return username; } public void setUsername(String username) { this.username = username; } public String getPassword() { return password; } public void setPassword(String password) { this.password = password; } public UserPOJO(int id, String username, String password) { super(); this.id = id; this.username = username; this.password = password; } public UserPOJO(String username, String password) { this.username = username; this.password = password; } public UserPOJO() { super(); // TODO Auto-generated constructor stub } } ** * 相册实体类 * */ public class AlbumPOJO implements Serializable{ private int id; private String a_name; private int user_id; public int getId() { return id; } public void setId(int id) { this.id = id; } public String getA_name() { return a_name; } public void setA_name(String a_name) { this.a_name = a_name; } public int getUser_id() { return user_id; } public void setUser_id(int user_id) { this.user_id = user_id; } public AlbumPOJO(int id, String a_name, int user_id) { super(); this.id = id; this.a_name = a_name; this.user_id = user_id; } public AlbumPOJO(String a_name, int user_id) { this.a_name = a_name; this.user_id = user_id; } public AlbumPOJO() { super(); // TODO Auto-generated constructor stub } } /** *照片实体类 * */ public class PhotoPOJO implements Serializable{ private static final long serialVersionUID = 5937149639009957458L; private int id; private String p_name; private String p_url; private int p_albumId; public int getId() { return id; } public void setId(int id) { this.id = id; } public String getP_name() { return p_name; } public void setP_name(String p_name) { this.p_name = p_name; } public String getP_url() { return p_url; } public void setP_url(String p_url) { this.p_url = p_url; } public int getP_albumId() { return p_albumId; } public void setP_albumId(int p_albumId) { this.p_albumId = p_albumId; } public PhotoPOJO(int id, String p_name, String p_url, int p_albumId) { super(); this.id = id; this.p_name = p_name; this.p_url = p_url; this.p_albumId = p_albumId; } public PhotoPOJO(String p_name, String p_url, int p_albumId) { this.p_name = p_name; this.p_url = p_url; this.p_albumId = p_albumId; } public PhotoPOJO() { super(); // TODO Auto-generated constructor stub } } login.jsp实现登录：
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> <%@ page import="cn.jvsun.DAO.Impl.*" %> <%@ page import="cn.jvsun.POJO.*" %> <%@ page import="cn.jvsun.DAO.*" %> <% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %>login <% request.setCharacterEncoding("utf-8"); String action=request.getParameter("action"); UpDAO ud=new UpDAOImpl(); String username=request.getParameter("username"); String password=request.getParameter("password"); UserPOJO pojo=ud.login(username, password); if("log".equals(action)){ if(pojo==null){ %>登录失败
<% }else{ request.getSession().setAttribute("username", username); request.getSession().setAttribute("userid", pojo.getId()); response.sendRedirect("index.jsp"); } } %>
index.jsp实现显示相册
代码如下：
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> <%@ page import="cn.jvsun.DAO.Impl.*" %> <%@ page import="cn.jvsun.POJO.*" %> <%@ page import="cn.jvsun.DAO.*" %> <% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %>person message 相册界面 当前用户：<%=request.getSession().getAttribute("username")%> 去创建相册 我的所有相册： <% int userid=(Integer)request.getSession().getAttribute("userid"); UpDAO dao=new UpDAOImpl(); Listlist=dao.findAllAlbum(userid); for(AlbumPOJO pojo:list){ %> 相册id:<%=pojo.getId() %> 相册名称:<%=pojo.getA_name() %> 创建者id:<%=pojo.getUser_id() %> 添加照片 查看照片 删除相册 <% } %>
cre.jsp创建相册
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> <%@ page import="cn.jvsun.DAO.Impl.*" %> <%@ page import="cn.jvsun.POJO.*" %> <%@ page import="cn.jvsun.DAO.*" %> <% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %>up photo <% request.setCharacterEncoding("utf-8"); String action=request.getParameter("action"); UpDAO ud=new UpDAOImpl(); String toCre=request.getParameter("cre"); int userId=(Integer)request.getSession().getAttribute("userid"); if("cre".equals(action)){ AlbumPOJO ap=new AlbumPOJO(toCre,userId); int aNum=ud.creAlbum(ap); if(aNum!=-1){ response.sendRedirect("index.jsp"); }else{ %>创建相册失败
<% } } %>
up.jsp上传照片
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> <%@ page import="cn.jvsun.DAO.Impl.*" %> <%@ page import="cn.jvsun.POJO.*" %> <%@ page import="cn.jvsun.DAO.*" %> <%@ page import="cn.jvsun.tools.*" %> <%@page import="org.lxh.smart.*" %> <% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %>上传照片 <% int aid=Integer.parseInt(request.getParameter("aid")); %>
upCheck.jsp上传照片的处理页
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> <%@ page import="cn.jvsun.DAO.Impl.*" %> <%@ page import="cn.jvsun.POJO.*" %> <%@ page import="cn.jvsun.DAO.*" %> <%@ page import="cn.jvsun.tools.*" %> <%@page import="org.lxh.smart.*" %><% String ip = request.getRemoteAddr(); ip = ip.replaceAll(":",""); PhotoName pn=new PhotoName(ip); String pName = pn.getPhotoName();//照片名字，是由IP加当前时间组成 SmartUpload smartupload = new SmartUpload();//实例化上传操作的对象 //初始化上传文件 smartupload.initialize(pageContext); //准备上传 smartupload.upload(); int albumId=Integer.parseInt(smartupload.getRequest().getParameter("aid")); //取得文件的后缀 String endName = smartupload.getFiles().getFile(0).getFileExt(); //文件保存的路径 /*String p_url = getServletContext().getRealPath("/")+ "file/"+pName+"."+endName;*/ String p_url="K:/workspace/Xiangce/WebRoot/file/"+pName+"."+endName; //保存文件 smartupload.getFiles().getFile(0).saveAs(p_url); UpDAO ad=new UpDAOImpl(); PhotoPOJO pojo=new PhotoPOJO(pName+"."+endName,p_url,albumId); int photoNum=ad.upPhoto(pojo); if(photoNum != -1){ request.getSession().setAttribute("phid", albumId); response.sendRedirect("show.jsp"); } else { %> 上传失败 <% } %>
show.jsp显示照片及信息页
代码如下：
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> <%@ page import="cn.jvsun.DAO.Impl.*" %> <%@ page import="cn.jvsun.POJO.*" %> <%@ page import="cn.jvsun.DAO.*" %> <% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %>My JSP 'show.jsp' starting page 相册界面 当前用户：<%=request.getSession().getAttribute("username")%> <% int phid=(Integer)request.getSession().getAttribute("phid"); UpDAO dao=new UpDAOImpl(); Listlist=dao.findAllPhoto(phid); for(PhotoPOJO pojo:list){ %> 照片id:<%=pojo.getId() %> 照片名称:<%=pojo.getP_name() %> 照片路径:<%=pojo.getP_url() %> 照片所属相册名称:<%=pojo.getP_albumId() %> 删除照片: <%} %>
photo_del.jsp删除照片
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> <%@ page import="cn.jvsun.DAO.Impl.*" %> <%@ page import="cn.jvsun.POJO.*" %> <%@ page import="cn.jvsun.DAO.*" %> <% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %>del <% int pid=Integer.parseInt(request.getParameter("pid")); int result=0; UpDAO dao=new UpDAOImpl(); result=dao.delPhoto(pid); if(result==1){ out.println(""); }else{ out.println(""); } %>
del.jsp删除相册
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> <%@ page import="cn.jvsun.DAO.Impl.*" %> <%@ page import="cn.jvsun.POJO.*" %> <%@ page import="cn.jvsun.DAO.*" %> <% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %>del <% int aid=Integer.parseInt(request.getParameter("aid")); int result=0; UpDAO dao=new UpDAOImpl(); result=dao.delAlbum(aid); if(result==1){ out.println(""); }else{ out.println(""); } %>
数据库的建表语句：
-- Create table create table USERINFO ( ID NUMBER, USERNAME VARCHAR2(30), PASSWORD VARCHAR2(30) ) tablespace USERS pctfree 10 initrans 1 maxtrans 255 storage ( initial 64 minextents 1 maxextents unlimited ); -- Create/Recreate primary, unique and foreign key constraints alter table USERINFO add constraint PID primary key (ID) disable; --上传者 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -- Create table create table ALBUM ( ID NUMBER not null, A_NAME VARCHAR2(30), USER_ID NUMBER ) tablespace USERS pctfree 10 initrans 1 maxtrans 255 storage ( initial 64 minextents 1 maxextents unlimited ); -- Create/Recreate primary, unique and foreign key constraints alter table ALBUM add constraint AL_PID primary key (ID) using index tablespace USERS pctfree 10 initrans 2 maxtrans 255 storage ( initial 64K minextents 1 maxextents unlimited ); alter table ALBUM add constraint USERID foreign key (USER_ID) references USERINFO (ID) disable; --相册表 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -- Create table create table PHOTO ( ID NUMBER, P_NAME VARCHAR2(30), P_URL VARCHAR2(50), P_ALBUMID NUMBER(30) ) tablespace USERS pctfree 10 initrans 1 maxtrans 255 storage ( initial 64 minextents 1 maxextents unlimited ); -- Create/Recreate primary, unique and foreign key constraints alter table PHOTO add constraint ALB_ID foreign key (P_ALBUMID) references ALBUM (ID); --相片表
好了，所有代码就写完了，切记，需要smartupload.jar包