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基于javaweb+jsp的高校科研项目管理系统

炽凤亮尧 2022-03-27 阅读 210
java-eetomcatmysql

JavaWeb JavaBean JSP MVC MySQL Tomcat JavaScript Bootstrap.

基础JSP+Servlet或JSP+SSM(Spring、SpringMVC、MyBatis)框架或JSP+SSM+Maven(pom.xml)框架或SpringBoot…均可

开发工具：eclipse/idea/myeclipse/sts等均可配置运行

适用

课程设计，大作业，毕业设计，项目练习，学习演示等

import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.io.OutputStream;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Random;

//@WebServlet("/AuthServlet")
public class AuthServlet extends HttpServlet {
    @Override
    public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        //过滤编码
        request.setCharacterEncoding("UTF-8");
        response.setCharacterEncoding("UTF-8");
        String action = Util.decode(request, "action");
        if ("login".equalsIgnoreCase(action)) {//登录
            String username = Util.decode(request, "username");
            String password = Util.decode(request, "password");

            String validationCode = Util.decode(request, "validationCode");
            if (validationCode != null && !validationCode.equals(request.getSession().getAttribute("validationCode"))) {//验证码不通过

            e.printStackTrace();
        }
        return vo;
    }

    //@Override
    public Map<String, Object> list(Map<String, Object> params) {
        List<Notice> list = new ArrayList();
        int totalCount = 0;
        String condition = "";
        String sqlList;
        if (params.get("searchColumn") != null && !"".equals(params.get("searchColumn"))) {
            condition += " and `" + params.get("searchColumn") + "` like '%" + params.get("keyword") + "%'";
        }
        try {
            Connection c = Util.getConnection();
            PreparedStatement ps;
            ResultSet rs;
            String limit = (params.get("startIndex") != null && params.get("pageSize") != null) ? " limit " + params.get("startIndex") + "," + params.get("pageSize") : "";

    private static boolean isChinese(char c) {
        Character.UnicodeBlock ub = Character.UnicodeBlock.of(c);
        return (ub == Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS
                || ub == Character.UnicodeBlock.CJK_COMPATIBILITY_IDEOGRAPHS
                || ub == Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS_EXTENSION_A
                || ub == Character.UnicodeBlock.GENERAL_PUNCTUATION
                || ub == Character.UnicodeBlock.CJK_SYMBOLS_AND_PUNCTUATION
                || ub == Character.UnicodeBlock.HALFWIDTH_AND_FULLWIDTH_FORMS);
    }

    /**
     * 判断字符串是否是乱码
     *
     * @param strName
     * @return
     */
    public static boolean isMessyCode(String strName) {
        java.util.regex.Pattern p = java.util.regex.Pattern.compile("\\s*|\t*|\r*|\n*");

                </td>
            </tr>
        </table>
        <br>
        <br>
        <br>
        &nbsp;&nbsp;&nbsp;<button type="submit" class="btn btn-line btn-rect btn-warning btn-sm">提交</button>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<button type="button" class="btn btn-line btn-rect btn-warning btn-sm" onclick="javascript:history.back(-1);">取消</button>
    </form>
</div>

</body>
<script type="text/javascript">
    //提交之前进行检查，如果return false，则不允许提交
    function check() {
        //根据ID获取值
        if (document.getElementById("username").value.trim().length == 0) {

            alert("项目编号不能为空!");
            return false;
        }
        if (document.getElementById("xmName").value.trim().length == 0) {
            alert("项目名称不能为空!");
            return false;
        }
        if (document.getElementById("xmLevel").value.trim().length == 0) {
            alert("级别不能为空!");
            return false;
        }
        if (document.getElementById("xmDate").value.trim().length == 0) {
            alert("开始时间不能为空!");
            return false;
        }
        if (document.getElementById("xmFei").value.trim().length == 0) {
            alert("项目经费不能为空!");
            return false;
        }
        return true;

            g.fillRect(0, 0, width, height);//  填充图形背景
            //  设置初始字体
            g.setFont(new Font("Times New Roman", Font.ITALIC, height));
            g.setColor(getRandomColor(120, 180));// 随机设置字体颜色
            //  用于保存最后随机生成的验证码
            StringBuilder validationCode = new StringBuilder();
            //  验证码的随机字体
            String[] fontNames = {"Times New Roman", "Book antiqua", "Arial"};
            for (int i = 0; i < 4; i++) {
                //  随机设置当前验证码的字符的字体
                g.setFont(new Font(fontNames[random.nextInt(3)], Font.ITALIC, height));
                //  随机获得当前验证码的字符
                char codeChar = codeChars.charAt(random.nextInt(charsLength));
                validationCode.append(codeChar);
                //  随机设置当前验证码字符的颜色
                g.setColor(getRandomColor(10, 100));
                //  在图形上输出验证码字符，x和y都是随机生成的
                g.drawString(String.valueOf(codeChar), 16 * i + random.nextInt(7), height - random.nextInt(6));
            }
            HttpSession session = request.getSession();

import java.sql.Statement;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * Xm模块的DAO层（数据层）的具体实现类，对XmDAO接口中定义的增删改查等抽象方法作出具体的功能实现
 */
public class XmDAOImpl implements XmDAO {

    //@Override

package com.demo.servlet;

import com.demo.util.Util;
import com.demo.service.NoticeService;
import com.demo.service.impl.NoticeServiceImpl;
import com.demo.vo.Notice;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.Serializable;

<body>
<jsp:include page="menu.jsp"/>
<div class="index-content">
    <div class="index-content-operation">
        <a class="info-detail">修改科研人员</a>
        <br>
        <br>
    </div>
    <br>
    <form action="RenyuanServlet?action=edit" method="post" onsubmit="return check()">
        <input type="hidden" id="id" name="id" value="${vo.id}"/>
        
        <table class="index-content-table-add">
            <tr>
                <td width="12%">人员编号：</td><td><input class="index-content-table-td-add" type="text" id="ryNo" name="ryNo" value="${vo.ryNo}"/></td>
            </tr>
            <tr>
                <td width="12%">姓名：</td><td><input class="index-content-table-td-add" type="text" id="ryName" name="ryName" value="${vo.ryName}"/></td>
            </tr>
            <tr>
                <td width="12%">年龄：</td><td><input class="index-content-table-td-add" type="text" id="ryAge" name="ryAge" value="${vo.ryAge}"/></td>

        } else if ("get".equalsIgnoreCase(action) || "editPre".equalsIgnoreCase(action)) {//根据主键ID，查询详情信息并跳转到详情页面或编辑页面
            Serializable id = Util.decode(request, "id");//取出页面传入的主键，用于查询详情
            UserService userService = new UserServiceImpl();
            User vo = userService.get(id);
            request.getSession().setAttribute("vo", vo);
            String to = "get".equalsIgnoreCase(action) ? "info" : "edit";//判断是去详情显示页面还是编辑页面
            response.sendRedirect("user_" + to + ".jsp");
        } else {//默认去列表页面
            this.redirectList(request, response);
        }
    }

    /**
     * 处理Get请求
     *
     * @param request
     * @param response
     * @throws ServletException
     * @throws IOException
     */

            long id = Long.parseLong(Util.decode(request, "id"));
            UserService userService = new UserServiceImpl();
            //调用Service层删除方法（delete），将对应的记录删除
            userService.delete(id);
            this.redirectList(request, response);
        } else if ("edit".equals(action)) {//修改
            //取出页面传进来的各个数据，并设置到User对象的属性里
            User vo = new User();
            vo.setId(Long.valueOf(Util.decode(request, "id")));
            vo.setUsername(Util.decode(request, "username"));
            vo.setPassword(Util.decode(request, "password"));

            }
            if (isMessyCode(str)) {
                str = new String(str.getBytes("GBK"), "UTF-8");
            }
            if (isMessyCode(str)) {
                str = new String(str.getBytes("UTF-8"), "ISO-8859-1");
            }
            if (isMessyCode(str)) {
                str = new String(str.getBytes("GB2312"), "ISO-8859-1");
            }
            if (isMessyCode(str)) {
                str = new String(str.getBytes("GBK"), "ISO-8859-1");
            }
            if (isMessyCode(str)) {
                str = new String(str.getBytes("UTF-8"), "GB2312");
            }
            if (isMessyCode(str)) {
                str = new String(str.getBytes("ISO-8859-1"), "GB2312");
            }
            if (isMessyCode(str)) {
                str = new String(str.getBytes("GBK"), "GB2312");
            }

                str = new String(str.getBytes("UTF-8"), "GB2312");
            }
            if (isMessyCode(str)) {
                str = new String(str.getBytes("ISO-8859-1"), "GB2312");
            }
            if (isMessyCode(str)) {
                str = new String(str.getBytes("GBK"), "GB2312");
            }
            if (isMessyCode(str)) {
                str = new String(str.getBytes("UTF-8"), "GBK");
            }
            if (isMessyCode(str)) {
                str = new String(str.getBytes("ISO-8859-1"), "GBK");
            }
            if (isMessyCode(str)) {
                str = new String(str.getBytes("GB2312"), "GBK");
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        System.out.println(parameterName + "==" + str.trim());
        return str.trim();
    }

        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    //@Override
    public boolean delete(long id) {
        try {
            Connection c = Util.getConnection();
            Statement s = c.createStatement();
            String sql = "delete from `t_xm` where id = " + id;
            s.execute(sql);

        com.demo.util.PageBean<Object> pb = new com.demo.util.PageBean(Integer.valueOf(pageNum != null ? pageNum : "1"), totalRecord);
        params.put("startIndex", pb.getStartIndex());
        params.put("pageSize", pb.getPageSize());
        List list = (List) noticeService.list(params).get("list");//根据分页参数startIndex、pageSize查询出来的最终结果list
        pb.setServlet("NoticeServlet");
        pb.setSearchColumn(searchColumn);
        pb.setKeyword(keyword);
        pb.setList(list);
        request.getSession().setAttribute("pageBean", pb);
        request.getSession().setAttribute("list", pb.getList());

        response.sendRedirect("notice_list.jsp");
    }
}

            c.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
        return vo;
    }

    //@Override
    public Map<String, Object> list(Map<String, Object> params) {
        List<Notice> list = new ArrayList();
        int totalCount = 0;
        String condition = "";
        String sqlList;
        if (params.get("searchColumn") != null && !"".equals(params.get("searchColumn"))) {
            condition += " and `" + params.get("searchColumn") + "` like '%" + params.get("keyword") + "%'";
        }
        try {
            Connection c = Util.getConnection();
            PreparedStatement ps;

        }
    }

    //@Override
    public boolean delete(long id) {
        try {
            Connection c = Util.getConnection();
            Statement s = c.createStatement();
            String sql = "delete from `t_user` where id = " + id;
            s.execute(sql);
            s.close();
            c.close();
            return true;
        } catch (Exception e) {
            e.printStackTrace();
            return false;
        }
    }

    //@Override

        return vo;
    }

    //@Override
    public Map<String, Object> list(Map<String, Object> params) {
        List<User> list = new ArrayList();
        int totalCount = 0;
        String condition = "";
        String sqlList;
        if (params.get("searchColumn") != null && !"".equals(params.get("searchColumn"))) {
            condition += " and `" + params.get("searchColumn") + "` like '%" + params.get("keyword") + "%'";
        }
        try {
            Connection c = Util.getConnection();
            PreparedStatement ps;
            ResultSet rs;
            String limit = (params.get("startIndex") != null && params.get("pageSize") != null) ? " limit " + params.get("startIndex") + "," + params.get("pageSize") : "";
                sqlList = "select * from `t_user` where 1=1 " + condition + " order by id asc " + limit + ";";
                ps = c.prepareStatement(sqlList);
                rs = ps.executeQuery();
                while (rs.next()) {
                    User vo = new User();

            if (rs.next()) {
                vo = new User();
                vo.setId(rs.getLong("id"));
                vo.setUsername(rs.getString("username"));
                vo.setPassword(rs.getString("password"));
                vo.setRealName(rs.getString("real_name"));
                vo.setUserSex(rs.getString("user_sex"));
                vo.setUserPhone(rs.getString("user_phone"));
                vo.setUserText(rs.getString("user_text"));
                vo.setUserType(rs.getString("user_type"));
            }
            c.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
        return vo;
    }

    //@Override

            UserService userService = new UserServiceImpl();
            Map<String, Object> params = new HashMap();
            params.put("searchColumn", "username");//使用`username`字段进行模糊查询
            params.put("keyword", username);
            List<User> list = (List<User>) userService.list(params).get("list");
            for (User user : list) {
                if (user.getUsername().equals(username) && user.getPassword().equals(password)) {//找到这个管理员了
                    request.getSession().setAttribute("loginUser", user);
                    request.getRequestDispatcher("UserServlet").forward(request, response);
                    return;
                }
            }
            request.getSession().setAttribute("alert_msg", "错误：用户名或密码错误！");
            request.getRequestDispatcher("login.jsp").forward(request, response);
        } else if ("register".equalsIgnoreCase(action)) {//注册
            String username = Util.decode(request, "username");
            String password = Util.decode(request, "password");

            User vo = new User();
            //取出页面传进来的各个数据，并设置到User对象的属性里
            vo.setUsername(Util.decode(request, "username"));
            vo.setPassword(Util.decode(request, "password"));
            vo.setRealName(Util.decode(request, "realName"));
            vo.setUserSex(Util.decode(request, "userSex"));
            vo.setUserPhone(Util.decode(request, "userPhone"));
            vo.setUserText(Util.decode(request, "userText"));
            vo.setUserType(Util.decode(request, "userType"));
            UserService userService = new UserServiceImpl();
            //调用Service层增加方法（add），增加记录

     *
     * @param request
     * @param response
     */
    private void redirectList(HttpServletRequest request, HttpServletResponse response) throws IOException {
        //查询列和关键字
        String searchColumn = Util.decode(request, "searchColumn");
        String keyword = Util.decode(request, "keyword");
        Map<String, Object> params = new HashMap();//用来保存控制层传进来的参数(查询条件)
        params.put("searchColumn", searchColumn);//要查询的列
        params.put("keyword", keyword);//查询的关键字
        NoticeService noticeService = new NoticeServiceImpl();
        Map<String, Object> map = noticeService.list(params);
        request.getSession().setAttribute("list", map.get("list"));

        Integer totalRecord = (Integer) map.get("totalCount");//根据查询条件取出对应的总记录数，用于分页
        String pageNum = Util.decode(request, "pageNum");//封装分页参数
        com.demo.util.PageBean<Object> pb = new com.demo.util.PageBean(Integer.valueOf(pageNum != null ? pageNum : "1"), totalRecord);
        params.put("startIndex", pb.getStartIndex());
        params.put("pageSize", pb.getPageSize());
        List list = (List) noticeService.list(params).get("list");//根据分页参数startIndex、pageSize查询出来的最终结果list
        pb.setServlet("NoticeServlet");
        pb.setSearchColumn(searchColumn);
        pb.setKeyword(keyword);

            String to = "get".equalsIgnoreCase(action) ? "info" : "edit";//判断是去详情显示页面还是编辑页面
            response.sendRedirect("renyuan_" + to + ".jsp");
        } else {//默认去列表页面
            this.redirectList(request, response);
        }
    }

    /**
     * 处理Get请求
     *
     * @param request
     * @param response
     * @throws ServletException
     * @throws IOException
     */
    @Override
    public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        doPost(request, response);//Get请求和Post请求的处理是一样的，所以把request、response转交给Post方法就好
    }

    /**
     * 根据参数，查询出条例条件的记录集合，最后将数据返回给调用处或者将数据集合设置到session域里，再跳转到对应的列表页面
     *

        request.setCharacterEncoding("UTF-8");
        response.setCharacterEncoding("UTF-8");
        String action = Util.decode(request, "action");
        if ("add".equals(action)) {//增加
            Xm vo = new Xm();
            //取出页面传进来的各个数据，并设置到Xm对象的属性里
            vo.setXmNo(Util.decode(request, "xmNo"));
            vo.setXmName(Util.decode(request, "xmName"));
            vo.setXmLevel(Util.decode(request, "xmLevel"));
            vo.setXmDate(Util.decode(request, "xmDate"));
            vo.setXmFei(Util.decode(request, "xmFei"));
            vo.setXmStatus(Util.decode(request, "xmStatus"));
            vo.setXmText(Util.decode(request, "xmText"));
            XmService xmService = new XmServiceImpl();
            //调用Service层增加方法（add），增加记录
            xmService.add(vo);
            this.redirectList(request, response);
        } else if ("delete".equals(action)) {//删除
            //取出表要删除的项目记录的主键
            long id = Long.parseLong(Util.decode(request, "id"));

                //  在图形上输出验证码字符，x和y都是随机生成的
                g.drawString(String.valueOf(codeChar), 16 * i + random.nextInt(7), height - random.nextInt(6));
            }
            HttpSession session = request.getSession();
            session.setMaxInactiveInterval(5 * 60);
            //  将验证码保存在session对象中，key为validation_code
            session.setAttribute("validationCode", validationCode.toString());
            g.dispose();//  关闭Graphics对象
            OutputStream os = response.getOutputStream();
            ImageIO.write(image, "JPEG", os);// 以JPEG格式向客户端发送图形验证码
        } else if ("resetPassword".equalsIgnoreCase(action)) {
            String msg;
            User loginUser = (User) request.getSession().getAttribute("loginUser");
            String oldPassword = Util.decode(request, "oldPassword");
            if (!loginUser.getPassword().equals(oldPassword)) {
                msg = "原密码错误！";
            } else {
                String newPassword = Util.decode(request, "newPassword");

运行环境

Java≥6、Tomcat≥7.0、MySQL≥5.5

开发工具

eclipse/idea/myeclipse/sts等均可配置运行

技术框架

JavaWeb JavaBean JSP MVC MySQL Tomcat JavaScript Bootstrap.

基础JSP+Servlet或JSP+SSM(Spring、SpringMVC、MyBatis)框架或JSP+SSM+Maven(pom.xml)框架或SpringBoot…均可

适用

课程设计，大作业，毕业设计，项目练习，学习演示等

功能说明

登录、注册、退出、用户模块、公告模块、项目模块、科研人员模块的增删改查管理

20220319003849

20220319003850

20220319003851

20220319003852

20220319003853

20220319003854

20220319003855

20220319003856

20220319003857

20220319003858

20220319003859

20220319003900

document

↖[获取源码方式]见左侧

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