jsp实现仿QQ空间新建多个相冊名称，向相冊中加入照片

Posted 2020-10-01 yfceshi

tags:

篇首语：本文由小常识网(cha138.com)小编为大家整理，主要介绍了jsp实现仿QQ空间新建多个相冊名称，向相冊中加入照片相关的知识，希望对你有一定的参考价值。

工具：Eclipse，Oracle，smartupload.jar。语言：jsp，Java；数据存储：Oracle。

实现功能介绍：

主要是新建相冊，能够建多个相冊，在相冊中加入多张照片，删除照片，删除相冊，当相冊下有照片时先删除照片才干删除相冊。

由于每一个相冊和照片要有所属人。所以顺带有登录功能。

声明：仅仅是后端实现代码，前台无不论什么样式，代码測试可行，仅供參考。

代码：

数据库连接帮助类：

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，要改动图片名称，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。改动图片名的帮助类：

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();
	}

}

实现全部这些的接口类：

public interface UpDAO {
	/**
	 * 创建相冊名称
	 * 
	 */
	public int creAlbum(AlbumPOJO ap);
	/**
	 *显示所创建的全部相冊名称
	 */
	public List<AlbumPOJO> findAllAlbum(int id);
	public List<PhotoPOJO> findAllPhoto(int id);
	/**
	 * 上传照片
	 */
	public int upPhoto(PhotoPOJO pp);
	/**
	 * 删除相冊
	 * @param id 相冊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);
}

接口的详细实现类：

public class UpDAOImpl implements UpDAO {

	/* (non-Javadoc)
	 * @see cn.jvsun.DAO.UpDAO#creAlbum(cn.jvsun.POJO.AlbumPOJO)
	 * 创建相冊名称
	 */
	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)
	 * 删除相冊
	 */
	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;
	}
	/**
	 * 相冊序列号
	 */
	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()
	 * 显示所创建的相冊名
	 */
	public List<AlbumPOJO> findAllAlbum(int id) {
		List<AlbumPOJO> list= new ArrayList<AlbumPOJO>();
		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<PhotoPOJO> findAllPhoto(int aid) {
		List<PhotoPOJO> list= new ArrayList<PhotoPOJO>();
		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。相冊。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
	}
	
}

/**
 * 相冊实体类
 *
 */
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
	}
	
}

<%@ 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+"/";
%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>"> 
    <title>login</title>
  </head>
  <body>
  <%
  	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){
  			%>
  			<h1>登录失败</h1>
  			<%
  		}else{
  			request.getSession().setAttribute("username", username);
  			request.getSession().setAttribute("userid", pojo.getId());
  			response.sendRedirect("index.jsp");
  		}
  	}
  %>
    <form action="login.jsp?action=log" method="post">
    	<input type="text" name="username" placeholder="请输入用户名"/>
    	<input type="password" name="password" placeholder="请输入密码"/>
    	<input type="submit"/>
    </form>
  </body>
</html>

index.jsp实现显示相冊

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代码例如以下：

<%@ 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+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">
    <title>person message</title>
  </head>
  
  <body>
    <center>相冊界面</center>
   	 当前用户：<%=request.getSession().getAttribute("username")%> <br>
    <a href="cre.jsp">去创建相冊</a><br>
    	我的全部相冊：<br>
    <%
    int userid=(Integer)request.getSession().getAttribute("userid");
	UpDAO dao=new UpDAOImpl();
  	List<AlbumPOJO> list=dao.findAllAlbum(userid);
  	for(AlbumPOJO pojo:list){
  %>
  <tr>
  	<a>相冊id:</a><td><%=pojo.getId() %></td>
  	<a>相冊名称:</a><td><%=pojo.getA_name() %></td>
  	<a>创建者id:</a><td><%=pojo.getUser_id() %></td>
  	<td><a href="up.jsp?aid=<%=pojo.getId() %>">加入照片</a></td>
  	<td><a href="show.jsp?phid=<%=pojo.getId() %>">查看照片</a></td>
  	<td><a href="del.jsp?aid=<%=pojo.getId() %>">删除相冊</a></td>
  </tr><br>
  <%
  	}
  %>
  
  </body>
</html>

cre.jsp创建相冊

<%@ 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+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">
    <title>up photo</title>
  </head>
  <body>
  <%
  	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{
			%>
			<h1>创建相冊失败</h1>
			<%
		}
	}
  %>
	<form action="cre.jsp?action=cre" method="post">
		<input type="text" name="cre" placeholder="请输入您要创建的相冊名称"/>
		<input type="submit" value="确定">
	</form>
  </body>
</html>

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+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">
    <title>上传照片</title>
  </head>
  
  <body>
	<%
		int aid=Integer.parseInt(request.getParameter("aid"));
	%>
	<form action="upCheck.jsp" method="post" enctype="multipart/form-data">
		<input type="hidden" name="aid" value="<%=aid %>"/>
		<input type="file" name="photo"/>
		<input type="submit" value="确认上传"/>
	</form>
  </body>
</html>

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.*" %>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <title></title>
  </head>
  
  <body>
    <%
		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
	<%
			}
	%>
  </body>
</html>

show.jsp显示照片及信息页：

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代码例如以下：

<%@ 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+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">
    <title>My JSP ‘show.jsp‘ starting page</title>
  </head>
 
  <body>
     <center>相冊界面</center>
   	 当前用户：<%=request.getSession().getAttribute("username")%> <br>
   	 <%
    int phid=(Integer)request.getSession().getAttribute("phid");
	UpDAO dao=new UpDAOImpl();
  	List<PhotoPOJO> list=dao.findAllPhoto(phid);
  	for(PhotoPOJO pojo:list){
  %>
  <tr>
  	<a>照片id:</a><td><%=pojo.getId() %></td><br>
  	<a>照片名称:</a><td><%=pojo.getP_name() %></td><br>
  	<a>照片路径:</a><td><%=pojo.getP_url() %></td><br>
  	<a>照片所属相冊名称:</a><td><%=pojo.getP_albumId() %></td><br>
  	<td><img src="<%=path%>/file/<%=pojo.getP_name() %>" width="100" height="100"/></td>
  	<a href="photo_del.jsp?pid=<%=pojo.getId() %>">删除照片:</a></td><br>
  </tr><br>
  <%} %>
  </body>
</html>

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+"/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">
    
    <title>del</title>
  </head>
  
  <body>
    <%
	int pid=Integer.parseInt(request.getParameter("pid"));
    int result=0;
	UpDAO dao=new UpDAOImpl();
	result=dao.delPhoto(pid);
	if(result==1){
		out.println("<script>alert(‘删除成功‘);window.location.href(‘show.jsp‘);</script>");
	}else{
		out.println("<script>alert(‘出错了‘);window.location.href(‘show.jsp‘);</script>");
	}
	%>
	
  </body>
</html>

del.jsp删除相冊

<%@ 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+"/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">
    
    <title>del</title>
  </head>
  
  <body>
    <%
	int aid=Integer.parseInt(request.getParameter("aid"));
    int result=0;
	UpDAO dao=new UpDAOImpl();
	result=dao.delAlbum(aid);
	if(result==1){
		out.println("<script>alert(‘删除成功‘);window.location.href(‘index.jsp‘);</script>");
	}else{
		out.println("<script>alert(‘删除失败。请先把相冊中的照片删掉‘);window.location.href(‘index.jsp‘);</script>");
	}
	%>
	
  </body>
</html>

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;
--相冊表
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-- 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，全部代码就写完了。切记。须要smartupload.jar包，没有的童鞋能够去下载：http://download.csdn.net/detail/weixin_36380516/9807953

不积硅步无以至千里。努力。

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