基于javaweb+jsp的毕业设计选题答辩管理系统

JavaWeb JavaBean JSP MVC MySQL Tomcat JavaScript Layui Ajax

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

            Connection c = Util.getConnection();
            Statement s = c.createStatement();
            String sql = "delete from `t_xuanti` where id = " + id;
            s.execute(sql);
            s.close();
            c.close();
            return true;
        } catch (Exception e) {
            e.printStackTrace();
            return false;
        }
    }

    //@Override
    public Xuanti get(Serializable id) {
        Xuanti vo = null;
        try {
            Connection c = Util.getConnection();
            Statement s = c.createStatement();
            String sql = "select * from `t_xuanti` where id = " + id;
            ResultSet rs = s.executeQuery(sql);
            if (rs.next()) {
                vo = new Xuanti();
                vo.setId(rs.getLong("id"));

                        templet: vo => {
                            let flag1 = ${loginUser.id} == vo.id;
                            let flag2 = ${loginUser.userType == '管理员'};
                            return ((flag1 || flag2) ? '<a class="layui-btn layui-btn-xs" lay-event="edit">编辑</a>' : '') + ((flag2) ? '<a class="layui-btn layui-btn-danger layui-btn-xs" lay-event="del">删除</a>' : '');
                        }
                    }
                ]
            ],
        });
        //监听工具条
        table.on('tool(myTable)', function (obj) { //注：tool 是工具条事件名，myTable 是 table 原始容器的属性 lay-filter="对应的值"
            let data = obj.data; //获得当前行数据
            let layEvent = obj.event; //获得 lay-event 对应的值（也可以是表头的 event 参数对应的值）
            if (layEvent === 'del') { //删除
                // layer.confirm('删除' + data.realName + "?", function (index) {
                $.ajax({

                layer.msg(data.noticeName + ' 删除成功！');
                // });
            } else if (layEvent === 'edit') { //编辑
                layer.open({
                    type: 2,
                    area: ['800px', '550px'],
                    fixed: false, //不固定
                    maxmin: true,
                    content: 'NoticeServlet?action=editPre&id=' + data.id
                });
                obj.update({});//同步更新缓存对应的值
            } else if (layEvent === 'info') { //详情
                layer.open({
                    type: 2,
                    area: ['800px', '650px'],
                    fixed: false, //不固定
                    maxmin: true,
                    content: 'NoticeServlet?action=get&id=' + data.id
                });
                obj.update({});//同步更新缓存对应的值
            } else if (layEvent === 'LAYTABLE_TIPS') {
                layer.alert('Hi，头部工具栏扩展的右侧图标。');
            }

     */
    @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
     *
     * @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
        UserService userService = new UserServiceImpl();
        response.getWriter().println(com.alibaba.fastjson.JSONObject.toJSONString(userService.list(params).get("list")));
    }
}
package com.demo.servlet;

        }
        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();
                    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"));
                    list.add(vo);
                }

    }

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

    //@Override
    public Dabian get(Serializable id) {
        Dabian vo = null;

                        title: '操作',
                        width: 130,
                        templet: vo => {
                            let flag = ${loginUser.userType == '管理员'};
                            return flag ? '<a class="layui-btn layui-btn-xs" lay-event="edit">编辑</a><a class="layui-btn layui-btn-danger layui-btn-xs" lay-event="del">删除</a>' : '';
                        }
                    }
                ]
            ],
        });
        //监听工具条
        table.on('tool(myTable)', function (obj) { //注：tool 是工具条事件名，myTable 是 table 原始容器的属性 lay-filter="对应的值"
            let data = obj.data; //获得当前行数据
            let layEvent = obj.event; //获得 lay-event 对应的值（也可以是表头的 event 参数对应的值）
            if (layEvent === 'del') { //删除
                // layer.confirm('删除' + data.xuantiName + "?", function (index) {
                $.ajax({

    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
    <title>毕业设计选题答辩管理系统</title>
    <link rel="stylesheet" href="js/layui/css/layui.css">
    <script src="js/jquery.js"></script>
    <script src="js/layer.js"></script>
</head>
<body class="layui-layout-body">
<div class="layui-layout layui-layout-admin">
    <div class="layui-header">
        <div class="layui-logo" style="font-weight: bold;font-size: 19px">毕业设计选题答辩管理系统</div>
        <ul class="layui-nav layui-layout-left"></ul>
        <c:if test="${loginUser==null}">
            <ul class="layui-nav layui-layout-right">
                <li class="layui-nav-item"><a href="login.jsp">请登录</a></li>
            </ul>
        </c:if>
        <c:if test="${loginUser!=null}">
            <ul class="layui-nav layui-layout-right">
                <li class="layui-nav-item"><a>${loginUser.username}</a></li>
                <li class="layui-nav-item"><a href="AuthServlet?action=logout">退出登录</a></li>

            Connection c = Util.getConnection();
            PreparedStatement ps = c.prepareStatement(sql);
            
            ps.setString(1, vo.getDabianName());
            ps.setString(2, vo.getDabianZhuzhang());
            ps.setString(3, vo.getDabianPingyue());
            ps.setString(4, vo.getDabianDidian());
            ps.setString(5, vo.getDabianShijian());
            ps.setString(6, vo.getDabianPichi());
            ps.setString(7, vo.getDabianXuesheng());

            ps.execute();
            ps.close();
            c.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    //@Override
    public boolean delete(long id) {
        try {
            Connection c = Util.getConnection();

            //调用Service层增加方法（add），增加记录
            xuantiService.add(vo);
            this.redirectList(request, response);
        } else if ("delete".equals(action)) {//删除
            //取出表要删除的选题记录的主键
            long id = Long.parseLong(Util.decode(request, "id"));
            XuantiService xuantiService = new XuantiServiceImpl();
            //调用Service层删除方法（delete），将对应的记录删除
            xuantiService.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Xuanti对象的属性里
            Xuanti vo = new Xuanti();
            vo.setId(Long.valueOf(Util.decode(request, "id")));
            vo.setXuantiName(Util.decode(request, "xuantiName"));
            vo.setXuantiXuesheng(Util.decode(request, "xuantiXuesheng"));

        };
        $('.searchTable .layui-btn').on('click', function () {
            let type = $(this).data('type');
            active[type] ? active[type].call(this) : '';
        });
    });
</script>
</body>
</html>
<%@ page contentType="text/html; charset=UTF-8" pageEncoding="UTF-8" %>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<%@ taglib prefix="fn" uri="http://java.sun.com/jsp/jstl/functions" %>
<%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt" %>
<html>
<head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
    <title>毕业设计选题答辩管理系统</title>

            params.put("pageSize", Long.MAX_VALUE);
            List<User> list = (List<User>) userService.list(params).get("list");
            for (User user : list) {
                if (user.getUsername().equals(username) /*&& user.getPassword().equals(password)*/) {//说明该用户名已存在，必须换个用户名才能注册
                    request.getSession().setAttribute("alert_msg", "错误：用户名已存在！");
                    request.getRequestDispatcher("register.jsp").forward(request, response);
                    return;
                }
            }
            User vo = new User();

            ],
        });
        //监听工具条
        table.on('tool(myTable)', function (obj) { //注：tool 是工具条事件名，myTable 是 table 原始容器的属性 lay-filter="对应的值"
            let data = obj.data; //获得当前行数据
            let layEvent = obj.event; //获得 lay-event 对应的值（也可以是表头的 event 参数对应的值）
            if (layEvent === 'del') { //删除
                // layer.confirm('删除' + data.xuantiName + "?", function (index) {
                $.ajax({
                    type: "GET",
                    dataType: "text",

        params.put("searchColumn", searchColumn);//要查询的列
        params.put("keyword", keyword);//查询的关键字
        UserService userService = new UserServiceImpl();
        response.getWriter().println(com.alibaba.fastjson.JSONObject.toJSONString(userService.list(params).get("list")));
    }
}
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;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * Notice模块的Servlet控制层，负责接收页面传过来的请求参数，根据action参数的值来确定页面要执行的具体操作<br>

                        {
                            field: 'userSex',
                            title: '性别',
                            templet: vo => vo.userSex ? vo.userSex : "",
                        },
                        {
                            field: 'userPhone',
                            title: '手机',
                        },
                        {
                            field: 'userText',
                            title: '备注',
                        },
                        {
                            field: 'userType',
                            title: '类型',
                            templet: vo => vo.userType ? vo.userType : "",
                        },
                    {
                        align: 'center',
                        fixed: 'right',
                        title: '操作',
                        width: 130,

            }
        });
        //搜索
        let $ = layui.$, active = {
            reload: function () {
                let url = 'UserServlet?action=list&keyword=' + $('#search_keyword').val() + '&searchColumn=' + $('#searchColumn').val();
                //执行重载
                table.reload('myTable', {
                    url: url,
                    page: {
                        curr: 1 //重新从第 1 页开始
                    }
                });
            }
        };
        $('.searchTable .layui-btn').on('click', function () {
            let type = $(this).data('type');
            active[type] ? active[type].call(this) : '';
        });
    });
</script>
</body>
</html>

                let result = this.page.curr ? res.slice(this.limit * (this.page.curr - 1), this.limit * this.page.curr) : res.slice(0, this.limit);
                return {
                    "code": 0, //解析接口状态
                    "msg": '', //解析提示文本
                    "count": res.length, //解析数据长度（集合个数）
                    "data": result //解析数据列表
                };
            },
            page: { //支持传入 laypage 组件的所有参数（某些参数除外，如：jump/elem） - 详见文档
                layout: ['limit', 'count', 'prev', 'page', 'next', 'skip'], //自定义分页布局
                groups: 1, //只显示 1 个连续页码
                first: false, //不显示首页
                last: false, //不显示尾页
            },
            toolbar: '#myToolbar', //开启头部工具栏，并为其绑定左侧模板

                            title: '手机',
                        },
                        {
                            field: 'userText',
                            title: '备注',
                        },
                        {
                            field: 'userType',
                            title: '类型',
                            templet: vo => vo.userType ? vo.userType : "",
                        },

            XuantiService xuantiService = new XuantiServiceImpl();
            //调用Service层增加方法（add），增加记录
            xuantiService.add(vo);
            this.redirectList(request, response);
        } else if ("delete".equals(action)) {//删除
            //取出表要删除的选题记录的主键
            long id = Long.parseLong(Util.decode(request, "id"));
            XuantiService xuantiService = new XuantiServiceImpl();
            //调用Service层删除方法（delete），将对应的记录删除
            xuantiService.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Xuanti对象的属性里
            Xuanti vo = new Xuanti();
            vo.setId(Long.valueOf(Util.decode(request, "id")));

        if ("add".equals(action)) {//增加
            Notice vo = new Notice();
            //取出页面传进来的各个数据，并设置到Notice对象的属性里
            vo.setNoticeName(Util.decode(request, "noticeName"));
            vo.setNoticeText(Util.decode(request, "noticeText"));
            vo.setNoticeType(Util.decode(request, "noticeType"));
            vo.setCreateDate(Util.decode(request, "createDate"));
            NoticeService noticeService = new NoticeServiceImpl();
            //调用Service层增加方法（add），增加记录
            noticeService.add(vo);
            this.redirectList(request, response);
        } else if ("delete".equals(action)) {//删除
            //取出表要删除的公告记录的主键
            long id = Long.parseLong(Util.decode(request, "id"));

</script>
<script>
    function arrayBufferToBase64(buffer) {
        let binary = '';
        let bytes = new Uint8Array(buffer);
        let len = bytes.byteLength;
        for (let i = 0; i < len; i++) {
            binary += String.fromCharCode(bytes[i]);
        }
        return window.btoa(binary);

        <div class="layui-input-block">
            <button type="submit" class="layui-btn" lay-submit="" lay-filter="submit-button">保存</button>
            <button type="reset" class="layui-btn layui-btn-primary">重置</button>
        </div>
    </div>
</form>
<script src="js/layui/layui.js" charset="utf-8"></script>
<script>
    layui.use(['form', 'layedit', 'laydate'], function () {
        let form = layui.form, layer = layui.layer, layedit = layui.layedit;
        //创建一个编辑器
        let editIndex = layedit.build('LAY_demo_editor');
        //自定义验证规则
        form.verify({
            content: function (value) {
                layedit.sync(editIndex);
            }
        });

                vo.setDabianName(rs.getString("dabian_name"));
                vo.setDabianZhuzhang(rs.getString("dabian_zhuzhang"));
                vo.setDabianPingyue(rs.getString("dabian_pingyue"));
                vo.setDabianDidian(rs.getString("dabian_didian"));
                vo.setDabianShijian(rs.getString("dabian_shijian"));
                vo.setDabianPichi(rs.getString("dabian_pichi"));
                vo.setDabianXuesheng(rs.getString("dabian_xuesheng"));
                vo.setDabianPingfen(rs.getString("dabian_pingfen"));
                vo.setDabianText(rs.getString("dabian_text"));
            }
            c.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
        return vo;
    }

    //@Override
    public Map<String, Object> list(Map<String, Object> params) {

                        },
                        {
                            field: 'noticeType',
                            title: '类型',
                        },
                        {
                            field: 'createDate',
                            title: '创建时间',
                        },
                    {
                        align: 'center',
                        fixed: 'right',
                        title: '操作',
                        width: 130,
                        templet: vo => {
                            let flag = ${loginUser.userType == '管理员'};
                            return flag ? '<a class="layui-btn layui-btn-xs" lay-event="edit">编辑</a><a class="layui-btn layui-btn-danger layui-btn-xs" lay-event="del">删除</a>' : '';
                        }
                    }
                ]
            ],
        });
        //监听工具条

    <link rel="stylesheet" href="js/layui/css/layui.css">
    <script src="js/jquery.js"></script>
    <script src="js/layer.js"></script>
</head>
<body class="layui-layout-body">
<div class="layui-layout layui-layout-admin">
    <div class="layui-header">
        <div class="layui-logo" style="font-weight: bold;font-size: 19px">毕业设计选题答辩管理系统</div>
        <ul class="layui-nav layui-layout-left"></ul>
        <c:if test="${loginUser==null}">
            <ul class="layui-nav layui-layout-right">
                <li class="layui-nav-item"><a href="login.jsp">请登录</a></li>
            </ul>
        </c:if>
        <c:if test="${loginUser!=null}">
            <ul class="layui-nav layui-layout-right">
                <li class="layui-nav-item"><a>${loginUser.username}</a></li>
                <li class="layui-nav-item"><a href="AuthServlet?action=logout">退出登录</a></li>
            </ul>
        </c:if>
    </div>

    <div class="layui-side layui-bg-black">

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 Layui Ajax

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、答辩模块、选题模块的增删改查管理

↖[获取源码方式]见左侧