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基于javaweb+jsp的设备维修管理系统

未定义变量 2022-03-30 阅读 61
javawebjspmysqlservletssm

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

    @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

<%@ 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>设备维修管理系统</title>
    <link rel="stylesheet" href="js/layui/css/layui.css">
    <script src="js/jquery.js"></script>
    <script src="js/layer.js"></script>
</head>

                layer.msg('添加');
                layer.open({
                    type: 2,
                    area: ['800px', '550px'],
                    fixed: false, //不固定
                    maxmin: true,
                    content: 'weixiu_add.jsp'
                });
            } else {
                //layer.alert('这是工具栏右侧自定义的一个图标按钮');
            }
        });

                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");
            }
            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();
        }

    /**
     * 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

                    list.add(vo);
                }
            String sqlCount = "select count(*) from `t_notice` where 1=1 " + condition;
            ps = c.prepareStatement(sqlCount);
            rs = ps.executeQuery();
            if (rs.next()) {
                totalCount = rs.getInt(1);
            }
            rs.close();
            ps.close();
            c.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
        Map<String, Object> result = new HashMap();
        result.put("list", list);
        result.put("totalCount", totalCount);
        return result;
    }
}
package com.demo.util;

import java.sql.Connection;
import java.sql.DriverManager;

            return false;
        }
    }

    //@Override
    public Weixiu get(Serializable id) {
        Weixiu vo = null;
        try {
            Connection c = Util.getConnection();
            Statement s = c.createStatement();
            String sql = "select * from `t_weixiu` where id = " + id;
            ResultSet rs = s.executeQuery(sql);
            if (rs.next()) {
                vo = new Weixiu();
                vo.setId(rs.getLong("id"));
                vo.setWeixiuNo(rs.getString("weixiu_no"));
                vo.setWeixiuName(rs.getString("weixiu_name"));
                vo.setWeixiuGuzhang(rs.getString("weixiu_guzhang"));
                vo.setWeixiuFeiyong(rs.getString("weixiu_feiyong"));
                vo.setWeixiuDate(rs.getString("weixiu_date"));
                vo.setWeixiuRen(rs.getString("weixiu_ren"));
                vo.setWeixiuPhone(rs.getString("weixiu_phone"));

//@WebServlet("/NoticeServlet")
public class NoticeServlet extends HttpServlet {

    /**
     * 处理Post请求
     *
     * @param request
     * @param response
     * @throws ServletException
     * @throws IOException
     */
    @Override
    public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        //过滤编码
        request.setCharacterEncoding("UTF-8");

     * @param request
     * @param response
     * @throws ServletException
     * @throws IOException
     */
    @Override
    public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        doPost(request, response);
    }

    // 返回一个随机颜色（Color对象）
    private Color getRandomColor(int minColor, int maxColor) {
        Random random = new Random();
        // 保存minColor最大不会超过255
        if (minColor > 255)
            minColor = 255;
        //  保存minColor最大不会超过255
        if (maxColor > 255)

            if (rs.next()) {
                totalCount = rs.getInt(1);
            }
            rs.close();
            ps.close();
            c.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
        Map<String, Object> result = new HashMap();
        result.put("list", list);

     * @param parameterName
     * @return
     */
    public static String decode(javax.servlet.http.HttpServletRequest request, String parameterName) {
        String str;
        if ((str = request.getParameter(parameterName)) == null) {
            return null;
        }
        try {
            if (isMessyCode(str)) {
                str = new String(str.getBytes("ISO-8859-1"), "UTF-8");
            }
            if (isMessyCode(str)) {
                str = new String(str.getBytes("GB2312"), "UTF-8");
            }

                    vo.setUserType(rs.getString("user_type"));
                    list.add(vo);
                }
            String sqlCount = "select count(*) from `t_user` where 1=1 " + condition;
            ps = c.prepareStatement(sqlCount);
            rs = ps.executeQuery();
            if (rs.next()) {
                totalCount = rs.getInt(1);
            }
            rs.close();
            ps.close();
            c.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
        Map<String, Object> result = new HashMap();
        result.put("list", list);
        result.put("totalCount", totalCount);
        return result;

            if (layEvent === 'del') { //删除
                // layer.confirm('删除' + data.shebeiName + "?", function (index) {
                $.ajax({
                    type: "GET",
                    dataType: "text",
                    url: "ShebeiServlet?action=delete&id=" + data.id,
                    success: function () {
                        console.log("已删除！");
                    }
                });
                obj.del(); //删除对应行（tr）的DOM结构，并更新缓存
                //parent.location.reload();//刷新父级页面

    <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
    <title>设备维修管理系统</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">设备维修管理系统</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>

<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);
    }

    layui.use('table', function () {
        let table = layui.table;
        table.render({

            toolbar: '#myToolbar', //开启头部工具栏，并为其绑定左侧模板
            defaultToolbar: ['filter', 'exports', 'print', { //自定义头部工具栏右侧图标。如无需自定义，去除该参数即可
                title: '提示',
                layEvent: 'LAYTABLE_TIPS',
                icon: 'layui-icon-tips'
            }],
            title: '用户列表',
            cols: [
                [
                        {
                            field: 'username',
                            title: '用户名',
                        },
                        {
                            field: 'realName',
                            title: '姓名',
                            templet: vo => (vo = vo.realName) ? '<a href="#" style="color: #009688;">' + vo + '</a>' : '',
                            event: 'info',
                        },
                        {

            vo.setShebeiDept(Util.decode(request, "shebeiDept"));
            vo.setShebeiStatus(Util.decode(request, "shebeiStatus"));
            ShebeiService shebeiService = new ShebeiServiceImpl();
            //调用Service层增加方法（add），增加记录
            shebeiService.add(vo);
            this.redirectList(request, response);
        } else if ("delete".equals(action)) {//删除
            //取出表要删除的设备记录的主键
            long id = Long.parseLong(Util.decode(request, "id"));
            ShebeiService shebeiService = new ShebeiServiceImpl();
            //调用Service层删除方法（delete），将对应的记录删除
            shebeiService.delete(id);

            toolbar: '#myToolbar', //开启头部工具栏，并为其绑定左侧模板
            defaultToolbar: ['filter', 'exports', 'print', { //自定义头部工具栏右侧图标。如无需自定义，去除该参数即可
                title: '提示',
                layEvent: 'LAYTABLE_TIPS',
                icon: 'layui-icon-tips'
            }],
            title: '设备列表',
            cols: [
                [
                        {
                            field: 'shebeiName',
                            title: '名称',
                            templet: vo => (vo = vo.shebeiName) ? '<a href="#" style="color: #009688;">' + vo + '</a>' : '',
                            event: 'info',
                        },
                        {
                            field: 'shebeiNo',
                            title: '编号',
                        },
                        {
                            field: 'shebeiType',
                            title: '类型',
                        },

        Notice vo = null;
        try {
            Connection c = Util.getConnection();
            Statement s = c.createStatement();
            String sql = "select * from `t_notice` where id = " + id;
            ResultSet rs = s.executeQuery(sql);
            if (rs.next()) {
                vo = new Notice();
                vo.setId(rs.getLong("id"));
                vo.setNoticeName(rs.getString("notice_name"));

import com.demo.util.Util;
import com.demo.dao.NoticeDAO;
import com.demo.vo.Notice;

import java.io.Serializable;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.Statement;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;

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

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


    layui.use('table', function () {
        let table = layui.table;
        table.render({
            elem: '#myData',
            id: 'myTable',
            url: 'NoticeServlet?action=list',
            parseData: function (res) { //res：即为原始返回的数据
                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
            defaultToolbar: ['filter', 'exports', 'print', { //自定义头部工具栏右侧图标。如无需自定义，去除该参数即可

                        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.noticeName + "?", function (index) {
                $.ajax({

                vo = new Weixiu();
                vo.setId(rs.getLong("id"));
                vo.setWeixiuNo(rs.getString("weixiu_no"));
                vo.setWeixiuName(rs.getString("weixiu_name"));
                vo.setWeixiuGuzhang(rs.getString("weixiu_guzhang"));
                vo.setWeixiuFeiyong(rs.getString("weixiu_feiyong"));
                vo.setWeixiuDate(rs.getString("weixiu_date"));
                vo.setWeixiuRen(rs.getString("weixiu_ren"));
                vo.setWeixiuPhone(rs.getString("weixiu_phone"));
                vo.setWeixiuStatus(rs.getString("weixiu_status"));
                vo.setWeixiuText(rs.getString("weixiu_text"));
            }
            c.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
        return vo;
    }

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

                    vo.setNoticeType(rs.getString("notice_type"));
                    vo.setCreateDate(rs.getString("create_date"));
                    list.add(vo);
                }
            String sqlCount = "select count(*) from `t_notice` where 1=1 " + condition;
            ps = c.prepareStatement(sqlCount);
            rs = ps.executeQuery();
            if (rs.next()) {
                totalCount = rs.getInt(1);
            }
            rs.close();
            ps.close();
            c.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
        Map<String, Object> result = new HashMap();

public class UserServlet extends HttpServlet {

    /**
     * 处理Post请求
     *
     * @param request
     * @param response
     * @throws ServletException
     * @throws IOException
     */
    @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 ("add".equals(action)) {//增加
            User vo = new User();

        return str.trim();
    }
}
<%@ 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>设备维修管理系统</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">

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、设备模块、维修模块的增删改查管理

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document

↖[获取源码方式]见左侧

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