• javaweb(servlet)+jsp+Mysql实现的简单相册管理系统(功能包含登录、管理首页、添加图片、分类管理、修改密码、图片详情等)


    javaweb(servlet)+jsp+Mysql实现的简单相册管理系统

    本系统是一个简单的相册管理系统,可以在线管理本地相册,实现图片的预览和管理。
    (文末查看完整源码)

    实现功能截图

    登录
    在这里插入图片描述添加图片

    在这里插入图片描述
    添加分类
    在这里插入图片描述
    首页
    在这里插入图片描述
    图片详情
    在这里插入图片描述

    在这里插入图片描述

    系统功能

    本系统实现了以下功能:
    1、登录
    2、管理首页
    3、添加图片
    4、分类管理
    5、修改密码
    6、图片详情
    7、退出登录

    使用技术

    数据库:mysql
    开发工具:Idea(Myeclispe、Eclipse也可以)
    知识点:javaweb(servlet+jsp)

    项目结构
    在这里插入图片描述

    代码

    java端
    实体类
    Photo.java

    package com.fsq.beans;
    
    public class Photo {
    
    	private int id = 0;
    	private String name;
    	private String path = "";
    	private int dianji ;
    	private String contentTime = "";
    	private String shuoming;
    	private int lid;	
    	private int count;
    	public int getId() {
    		return id;
    	}
    	public void setId(int id) {
    		this.id = id;
    	}
    	public String getName() {
    		return name;
    	}
    	public void setName(String name) {
    		this.name = name;
    	}
    	public String getPath() {
    		return path;
    	}
    	public void setPath(String path) {
    		this.path = path;
    	}
    	public int getDianji() {
    		return dianji;
    	}
    	public void setDianji(int dianji) {
    		this.dianji = dianji;
    	}
    	public String getContentTime() {
    		return contentTime;
    	}
    	public void setContentTime(String contentTime) {
    		this.contentTime = contentTime;
    	}
    	public String getShuoming() {
    		return shuoming;
    	}
    	public void setShuoming(String shuoming) {
    		this.shuoming = shuoming;
    	}
    	public int getLid() {
    		return lid;
    	}
    	public void setLid(int lid) {
    		this.lid = lid;
    	}
    	public int getCount() {
    		return count;
    	}
    	public void setCount(int count) {
    		this.count = count;
    	}
    	
    	
    }
    
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    Dao层
    PhotoDAO.java

    package com.fsq.dao;
    
    import java.sql.Connection;
    import java.sql.PreparedStatement;
    import java.sql.ResultSet;
    import java.sql.SQLException;
    import java.sql.Statement;
    import java.util.ArrayList;
    import java.util.List;
    
    import com.fsq.beans.Photo;
    import com.fsq.util.JdbcUtil;
    
    public class PhotoDAO {
    
    	public List<Photo> getAllPhotos() throws SQLException {
    		List<Photo> photoList = new ArrayList<Photo>();
    		String sql = "select * from photo";
    		Connection conn = JdbcUtil.getConnection();
    		Statement stmt = null;
    		ResultSet rs = null;
    		try {
    			stmt = conn.createStatement();
    			rs = stmt.executeQuery(sql);
    			while (rs.next()) {
    				Photo photo = new Photo();
    				photo.setId(rs.getInt("id"));
    				photo.setName(rs.getString("name"));
    				photo.setPath(rs.getString("path"));
    				photo.setDianji(rs.getInt("dianji"));
    				photo.setContentTime(rs.getString("contenttime"));
    				photo.setShuoming(rs.getString("shuoming"));
    				photo.setLid(rs.getInt("lid"));
    				photoList.add(photo);
    			}
    		} catch (SQLException e) {
    			e.printStackTrace();
    			throw e;
    		} finally {
    			JdbcUtil.close(rs, null);
    			JdbcUtil.close();
    		}
    		return photoList;
    	}
    
    	public void delete(Photo photo) throws SQLException {
    		Connection conn = JdbcUtil.getConnection();
    		PreparedStatement ps = null;
    		String sql = "delete  from photo where id=?";
    
    		try {
    			ps = conn.prepareStatement(sql);
    			ps.setInt(1, photo.getId());
    			ps.executeUpdate();
    		} catch (SQLException e) {
    			e.printStackTrace();
    			throw e;
    		} finally {
    			JdbcUtil.close(null, ps);
    			JdbcUtil.close();
    		}
    	}
    
    	public boolean updateDianJi(Photo photo) throws SQLException {
    		boolean flag = false;
    		PreparedStatement ps = null;
    		String sql = "UPDATE photo SET dianji=dianji+1 where id=?";
    		try {
    			Connection conn = JdbcUtil.getConnection();
    			ps = conn.prepareStatement(sql);
    			ps.setInt(1, photo.getId());
    			int n = ps.executeUpdate();
    			if (n != 0) {
    				flag = true;
    			} else {
    				flag = false;
    			}
    		} catch (SQLException e) {
    			e.printStackTrace();
    			throw e;
    		} finally {
    			JdbcUtil.close(null, ps);
    			JdbcUtil.close();
    		}
    		return flag;
    	}
    
    	public void update(Photo photo) throws SQLException {
    		Connection conn = JdbcUtil.getConnection();
    		PreparedStatement ps = null;
    		String sql = "update photo set name=?,shuoming=?,lid=? where id=?";
    		try {
    			ps = conn.prepareStatement(sql);
    			ps.setString(1, photo.getName());
    			ps.setString(2, photo.getShuoming());
    			ps.setInt(3, photo.getLid());
    			ps.setInt(4, photo.getId());
    			ps.executeUpdate();
    		} catch (SQLException e) {
    			e.printStackTrace();
    			throw e;
    		} finally {
    			JdbcUtil.close(null, ps);
    			JdbcUtil.close();
    		}
    	}
    
    	public List<Photo> getAllPhotosByClassId(int id) throws SQLException {
    		List<Photo> photoList = new ArrayList<Photo>();
    		String sql = "select id,name,path,dianji,shuoming from photo where lid=?";
    		PreparedStatement ps = null;
    		ResultSet rs = null;
    		try {
    			Connection conn = JdbcUtil.getConnection();
    			ps = conn.prepareStatement(sql);
    			ps.setInt(1, id);
    			rs = ps.executeQuery();
    			while (rs.next()) {
    				Photo photo = new Photo();
    				photo.setId(rs.getInt(1));
    				photo.setName(rs.getString(2));
    				photo.setPath(rs.getString(3));
    				photo.setDianji(rs.getInt(4));
    				photo.setShuoming(rs.getString(5));
    				photoList.add(photo);
    			}
    		} catch (SQLException e) {
    			e.printStackTrace();
    			throw e;
    		} finally {
    			JdbcUtil.close(rs, ps);
    			JdbcUtil.close();
    		}
    		return photoList;
    	}
    
    	public Photo getPhotoById(int id) throws SQLException {
    		String sql = "select id,name,path,contentTime,shuoming,lid from photo where id=?";
    		PreparedStatement ps = null;
    		ResultSet rs = null;
    		try {
    			Connection conn = JdbcUtil.getConnection();
    			ps = conn.prepareStatement(sql);
    			ps.setInt(1, id);
    			rs = ps.executeQuery();
    			while (rs.next()) {
    				Photo photo = new Photo();
    				photo.setId(rs.getInt(1));
    				photo.setName(rs.getString(2));
    				photo.setPath(rs.getString(3));
    				photo.setContentTime(rs.getString(4));
    				photo.setShuoming(rs.getString(5));
    				photo.setLid(rs.getInt(6));
    				return photo;
    			}
    		} catch (SQLException e) {
    			e.printStackTrace();
    		} finally {
    			JdbcUtil.close(rs, ps);
    			JdbcUtil.close();
    		}
    		return null;
    	}
    
    	public boolean insert(Photo photo) throws SQLException {
    		Connection conn = null;
    		PreparedStatement ps = null;
    		try {
    			String sql = "insert into photo (name,path,shuoming,contentTime,lid,dianji) values(?,?,?,?,?,0)";
    			conn = JdbcUtil.getConnection();
    			ps = conn.prepareStatement(sql);
    			ps.setString(1, photo.getName());
    			ps.setString(2, photo.getPath());
    			ps.setString(3, photo.getShuoming());
    			ps.setString(4, photo.getContentTime());
    			ps.setInt(5, photo.getLid());
    			int num = ps.executeUpdate();
    			if (num != 0) {
    				return true;
    			}
    			return false;
    		} catch (SQLException e) {
    			e.printStackTrace();
    			throw e;
    		} finally {
    			JdbcUtil.close(null, ps);
    			JdbcUtil.close();
    		}
    	}
    
    }
    
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    servlet类
    PhotoServlet.java

    package com.fsq.servlet;
    
    import java.io.File;
    import java.io.IOException;
    import java.sql.SQLException;
    import java.text.SimpleDateFormat;
    import java.util.ArrayList;
    import java.util.Calendar;
    import java.util.Date;
    import java.util.Iterator;
    import java.util.List;
    
    import javax.servlet.ServletException;
    import javax.servlet.http.HttpServlet;
    import javax.servlet.http.HttpServletRequest;
    import javax.servlet.http.HttpServletResponse;
    import javax.servlet.http.HttpSession;
    
    import org.apache.commons.fileupload.FileItem;
    import org.apache.commons.fileupload.disk.DiskFileItemFactory;
    import org.apache.commons.fileupload.servlet.ServletFileUpload;
    
    import com.fsq.beans.Photo;
    import com.fsq.beans.PhotoClass;
    import com.fsq.beans.PingLun;
    import com.fsq.biz.PhotoBiz;
    import com.fsq.dao.PhotoClassDAO;
    import com.fsq.dao.PhotoDAO;
    import com.fsq.dao.PingLunDAO;
    import com.fsq.util.ImageUtils;
    
    public class PhotoServlet extends HttpServlet {
    
    	private static final long serialVersionUID = 1L;
    
    	public PhotoServlet() {
    		super();
    	}
    
    	public void destroy() {
    		super.destroy();
    	}
    
    	@SuppressWarnings("unused")
    	public void doGet(HttpServletRequest request, HttpServletResponse response)
    			throws ServletException, IOException {
    		request.setCharacterEncoding("utf-8");
    		response.setCharacterEncoding("utf-8");
    		String toUrl = "";
    		String action = request.getParameter("action");
    		if ("getAll".equals(action)) { // admin的管理主页面 amain.jsp
    			PhotoBiz photoBiz = new PhotoBiz();
    			List<Photo> list = null;
    			HttpSession session = request.getSession();
    			try {
    				list = photoBiz.getAllPhotos();
    				request.setAttribute("selAllList", list);
    				request.getRequestDispatcher("/admin/amain.jsp").forward(
    						request, response);
    			} catch (Exception e) {
    				e.printStackTrace();
    			}
    		}
    		if ("addPhoto".equals(action)) {
    			List<PhotoClass> list = new PhotoClassDAO().getAllClass();
    			request.setAttribute("list", list);
    			request.getRequestDispatcher("admin/photo_add.jsp").forward(
    					request, response);
    		}
    		if ("getAllClient".equals(action)) { // 客户的登录页面 main.jsp
    			PhotoBiz photoBiz = new PhotoBiz();
    			List<Photo> list = null;
    			HttpSession session = request.getSession();
    			try {
    				list = photoBiz.getAllPhotos();
    				request.setAttribute("selAllList", list);
    				request.getRequestDispatcher("main.jsp").forward(request,
    						response);
    			} catch (Exception e) {
    				e.printStackTrace();
    			}
    		}
    		if ("selOne".equals(action)) {
    			try {
    				String id = request.getParameter("id");
    				String str = request.getParameter("str");
    				if ("client".equals(str)) {
    					Photo photo = new PhotoDAO().getPhotoById(Integer
    							.parseInt(id));
    					PhotoDAO photoDAO = new PhotoDAO();
    					photoDAO.updateDianJi(photo);
    					String pathMax = photo.getPath();
    					String s[] = pathMax.split("_min");
    					photo.setPath("uploadimg/" + s[0] + s[1]);
    					request.setAttribute("photo", photo);
    					List<PingLun> pingLunList = new PingLunDAO()
    							.searchByPhotoId(Integer.parseInt(id));
    					request.setAttribute("pingLunList", pingLunList);
    					request.getRequestDispatcher("/admin/photo_one.jsp")
    							.forward(request, response);
    				} else if ("admin".equals(str)) {
    					Photo photo = new PhotoDAO().getPhotoById(Integer
    							.parseInt(id));
    					String pathMax = photo.getPath();
    					String s[] = pathMax.split("_min");
    					photo.setPath("uploadimg/" + s[0] + s[1]);
    					request.setAttribute("photo", photo);
    					List<PingLun> pingLunList = new PingLunDAO()
    							.searchByPhotoId(Integer.parseInt(id));
    					request.setAttribute("pingLunList", pingLunList);
    					request.getRequestDispatcher("/admin/photo_one_pinglun.jsp")
    							.forward(request, response);
    				}
    			} catch (Exception e) {
    				e.printStackTrace();
    			}
    		}
    		if ("toupdate".equals(action)) {
    			String id = request.getParameter("id");
    			try {
    				Photo photo = new PhotoDAO().getPhotoById(Integer.parseInt(id));
    				request.setAttribute("photo", photo);
    				List<PhotoClass> list = new PhotoClassDAO().getAllClass();
    				request.setAttribute("list", list);
    				request.getRequestDispatcher("/admin/photo_manager.jsp")
    						.forward(request, response);
    			} catch (SQLException e) {
    				request.setAttribute("msg", "数据库错误");
    				request.getRequestDispatcher("/admin/result.jsp").forward(
    						request, response);
    			}
    		}
    		if ("update1".equals(action)) {
    			String id = request.getParameter("id");
    			String name = request.getParameter("name");
    			String shuoming = request.getParameter("shuoming");
    			String lid = request.getParameter("lid");
    			try {
    				Photo photo = new PhotoDAO().getPhotoById(Integer.parseInt(id));
    				photo.setName(name);
    				photo.setShuoming(shuoming);
    				photo.setLid(Integer.parseInt(lid));
    				new PhotoDAO().update(photo);
    				request.setAttribute("msg", "恭喜您,图片信息修改成功");
    				request.getRequestDispatcher("/admin/result.jsp").forward(
    						request, response);
    
    			} catch (NumberFormatException e) {
    				request.setAttribute("msg", "数据格式错误");
    				request.getRequestDispatcher("/admin/result.jsp").forward(
    						request, response);
    				e.printStackTrace();
    			} catch (SQLException e) {
    				request.setAttribute("msg", "数据库错误");
    				request.getRequestDispatcher("/admin/result.jsp").forward(
    						request, response);
    				e.printStackTrace();
    			}
    		}
    		if ("delete".equals(action)) {
    			String id = request.getParameter("id");
    			try {
    				Photo photo = new PhotoDAO().getPhotoById(Integer.parseInt(id));
    				new PhotoDAO().delete(photo);
    				request.setAttribute("msg", "恭喜您,图片已成功删除");
    				request.getRequestDispatcher("/admin/result.jsp").forward(
    						request, response);
    			} catch (NumberFormatException e) {
    				request.setAttribute("msg", "数据格式错误");
    				request.getRequestDispatcher("/admin/result.jsp").forward(
    						request, response);
    				e.printStackTrace();
    			} catch (SQLException e) {
    				request.setAttribute("msg", "数据库错误");
    				request.getRequestDispatcher("/admin/result.jsp").forward(
    						request, response);
    				e.printStackTrace();
    			}
    		}
    		if ("seeAllPhotosByClassId".equals(action)) { // 分类查看是 photoa_all.jsp
    			String id = request.getParameter("id");
    			String num = request.getParameter("num");
    			if (Integer.parseInt(num) == 0) {
    				request.setAttribute("msg", "对不起该分类下没有文件");
    				request.getRequestDispatcher("/admin/result.jsp").forward(
    						request, response);
    			} else {
    
    				try {
    					List<Photo> photoList = new ArrayList<Photo>();
    					PhotoDAO photoDAO = new PhotoDAO();
    					photoList = photoDAO.getAllPhotosByClassId(Integer
    							.parseInt(id));					
    					request.setAttribute("photoList", photoList);
    					request.getRequestDispatcher("/admin/photo_all.jsp")
    							.forward(request, response);
    				} catch (NumberFormatException e) {
    					request.setAttribute("msg", "数据格式错误");
    					request.getRequestDispatcher("/admin/result.jsp").forward(
    							request, response);
    					e.printStackTrace();
    				} catch (SQLException e) {
    					request.setAttribute("msg", "数据库错误");
    					request.getRequestDispatcher("/admin/result.jsp").forward(
    							request, response);
    					e.printStackTrace();
    				}
    
    			}
    		}
    		if ("add".equals(action)) {
    			boolean flag = false;
    			Photo photo = new Photo();
    			PhotoDAO photoDAO = new PhotoDAO();
    			String msg = "";
    			try {
    				Calendar calendar = Calendar.getInstance();
    				String newfilename = String.valueOf(calendar.getTimeInMillis());
    				DiskFileItemFactory factory = new DiskFileItemFactory();
    				ServletFileUpload upload = new ServletFileUpload(factory);
    				List<?> items = upload.parseRequest(request);
    				Iterator<?> iter = items.iterator();
    				while (iter.hasNext()) {
    					FileItem item = (FileItem) iter.next();
    					if (item.isFormField()) {
    						String fieldName = item.getFieldName();
    						String fieldValue = new String(item.getString("utf-8"));
    						if ("shuoming".equals(fieldName)) {
    							photo.setShuoming(fieldValue);
    						} else if ("name".equals(fieldName)) {
    							photo.setName(fieldValue);
    						} else if ("lid".equals(fieldName)) {
    							photo.setLid(Integer.parseInt(fieldValue));
    						}
    					} else {
    						String fieldName = item.getFieldName();
    						String fileName = item.getName();
    						String ext = fileName.substring(fileName
    								.lastIndexOf('.') + 1);
    						String contentType = item.getContentType();
    						boolean isInMemory = item.isInMemory();
    						long sizeInBytes = item.getSize();
    						String saveurl = request.getSession()
    								.getServletContext().getRealPath("/")
    								+ "uploadimg\\";
    						String s = this.getServletContext().getRealPath("/");
    						String newfilenamewithext = newfilename + "." + ext;
    						File uploadedFile = new File(saveurl
    								+ newfilenamewithext);
    						item.write(uploadedFile);
    						String newfilename_min = ImageUtils.createMinPic(
    								saveurl, newfilename, ext);
    						photo.setPath(newfilename_min);
    						String contenttime = "";
    						Date dt = new Date();
    						SimpleDateFormat sdf = new SimpleDateFormat(
    								"yyyy-MM-dd HH:mm:ss ");
    						contenttime = sdf.format(dt);
    						photo.setContentTime(contenttime);
    					}
    				}
    				flag = photoDAO.insert(photo);
    				if (flag) {
    					msg = "恭喜,图片添加成功!";
    				} else {
    					msg = "对不起,图片插入失败!";
    				}
    			} catch (Exception e) {
    				e.printStackTrace();
    				msg = "图片插入失败!";
    			}
    			request.setAttribute("msg", msg);
    			request.getRequestDispatcher("/admin/result.jsp").forward(request,
    					response);
    		}
    	}
    
    	public void doPost(HttpServletRequest request, HttpServletResponse response)
    			throws ServletException, IOException {
    		this.doGet(request, response);
    	}
    
    	public void init() throws ServletException {
    	}
    
    }
    
    
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    完整源码

    觉得有用,记得一键三连哦!

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  • 原文地址:https://blog.csdn.net/anmu4200/article/details/128212669