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使用Mongodb实现打卡签到系统

2020-05-01 16:03:02来源：博客园阅读 ()

使用Mongodb实现打卡签到系统

使用excel文件导入数据，整合mongodb实现打卡签到系统

环境参数

开发工具：IDEA
基础环境：Maven+JDK8
主要技术：SpringBoot、Mongodb
SpringBoot版本：2.2.6

实现步骤如下：

1.添加依赖

     <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-mongodb</artifactId>
        </dependency>

        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>

        <!-- excel工具 -->
        <dependency>
            <groupId>org.apache.poi</groupId>
            <artifactId>poi-ooxml</artifactId>
            <version>4.0.1</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
            <exclusions>
                <exclusion>
                    <groupId>org.junit.vintage</groupId>
                    <artifactId>junit-vintage-engine</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <scope>test</scope>
        </dependency>

2.实体层

3.业务service层

4. service实现层

package com.ckf.mongodb_punch.service.impl;


import com.ckf.mongodb_punch.mapper.AttendRepository;
import com.ckf.mongodb_punch.entity.Attend;
import com.ckf.mongodb_punch.service.AttendService;
import org.apache.poi.hssf.usermodel.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.data.mongodb.core.query.Criteria;
import org.springframework.data.mongodb.core.query.Query;
import org.springframework.data.mongodb.core.query.Update;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

@Service
public class AttendServiceImpl implements AttendService {


    @Autowired
    private AttendRepository attendRepository;

    @Autowired
    private MongoTemplate mongoTemplate;

    /**
     * 上传文件
     * @param classes
     * @param nameListExcel
     * @return
     */
    @Override
    public String upload(String classes, MultipartFile nameListExcel) {
        String result = "no";
        if (nameListExcel == null) {
            return result;
        }
        //实例化对象列表，用于存储Excel中的数据
        List<Attend> attendList = new ArrayList<Attend>();

        //读取文件对象nameListExcel 中的数据（读取Excel中每一行数据，存到对象，存到对象列表中）
        try {
            //根据路径获取这个操作excel的实例
            HSSFWorkbook wb = new HSSFWorkbook(nameListExcel.getInputStream());

            //根据页面index 获取sheet页
            HSSFSheet sheet = wb.getSheetAt(0);

            HSSFRow row = null;
            //循环sesheet页中数据从第二行开始，第一行是标题
            for (int i = 1; i < sheet.getPhysicalNumberOfRows(); i++) {
                //获取每一行数据
                row = sheet.getRow(i);

                Attend attend = new Attend();
                //下面cellnum对应着下标，id是第一位对应着下标为0，name是第二位对应的下标为1,等等..
                attend.setId(Integer.valueOf((int) row.getCell(0).getNumericCellValue()));
                attend.setName(row.getCell(1).getStringCellValue());
                attend.setSign(Integer.valueOf((int) row.getCell(2).getNumericCellValue()));
                attendList.add(attend);
            }

        } catch (IOException e) {
            e.printStackTrace();
        }
        System.out.println("解析Excel中的数据:" + attendList);

        /**
         * 如果成功就，写入mongodb中
         */
        attendRepository.saveAll(attendList);
        result = "ok";
        return result;
    }

    /**
     * 签到
     * @param name
     * @return
     */
    @Override
    public String sign(String name) {
        Query query = Query.query(Criteria.where("name").is(name));

        //局部修改的内容
        Update update = new Update();
        update.set("sign", 1);

        //attend 集合名 对应实体的集合名
        mongoTemplate.updateFirst(query, update, "attend");
        return "ok";
    }

    /**
     * 全查询学生信息
     * @param sign
     * @return
     */
    @Override
    public List<Attend> findAllBySign(Integer sign) {
        return attendRepository.findAllBySign(sign);
    }
}

5.controller层

package com.ckf.mongodb_punch.controller;

import com.ckf.mongodb_punch.entity.Attend;
import com.ckf.mongodb_punch.service.AttendService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;

import java.util.HashMap;
import java.util.List;
import java.util.Map;


@RestController
public class AttendController {

    @Autowired
    private AttendService attendService;

    @GetMapping("/sign")
    public String sign(String name){
        /**
         * 将名字传给服务层，mongodb修改登录状态
         */
        attendService.sign(name);
        return "ok";
    }

    /**
     * 上传文件
     * @param classes
     * @param nameListExcel
     * @return
     */
    @PostMapping("/upload")
    public String upload(String classes, MultipartFile nameListExcel){
        /**
         * 接收到前台传过来的文件对象，交给service层或者Excel工具类来解析数据
         * System.out.println("接收前台表单提交数据："+classes+nameListExcel);
         */
        String result = attendService.upload(classes,nameListExcel);
        return result;
    }

    /**
     * 查询未签到同学 和已签到同学
     * @return
     */
    @GetMapping("/list")
    public Map list(){
        Map result = new HashMap<String,Object>();
        /**
         * 已签到
         */
        List<Attend> complete = attendService.findAllBySign(1);
        result.put("complete",complete);

        /**
         * 未签到
         */
        List<Attend> incomplete = attendService.findAllBySign(0);
        result.put("incomplete",incomplete);
        return result;
    }
}

6.application.yml

这里使用的是mongodb的安全认证配置

spring:
  data:
    mongodb:
      uri: mongodb://ckf_user:123456@192.168.85.154:27017/attend_db

默认单例配置如下

spring:
  data:
    mongodb:
      uri: mongodb://localhost:27017/attend_db

这里使用的是异步实现的

7.list.html代码如下

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>考勤管理页面</title>
    <style>
        #complete,#incomplete{
            width: 50%;
            float: left;
        }
    </style>
    <script src="http://apps.bdimg.com/libs/jquery/2.1.1/jquery.min.js" type="text/javascript" charset="utf-8"></script>
</head>
<body>

    <h3>导入名单</h3>
    班级名称：
    <input type="text" name="classes" id="classes"/>
    请选择导入文件
    <input type="file" name="nameList" id="nameList"/>
    <input type="button" id="upload" value="上传">
    <hr/>

    <div id="incomplete">
        <h3>未签到的</h3>
        <p></p>

    </div>

    <div id="complete">
        <h3>已签到</h3>
        <p></p>
    </div>

</body>
<script type="text/javascript">

    $(function () {
        //初始化页面查询结果
        $.ajax({
            type:"get",
            url:"/list",
            success:function(data){
                console.log(data);
                var complete ="";
                var incomplete ="";

                $.each(data.complete,function (index,object) {
                    complete +=  object.id +"&nbsp;" +object.name +"<br/>";
                })
                $("#complete p").html(complete);
                $.each(data.incomplete,function (index,object) {
                    incomplete +=  object.id +"&nbsp;" +object.name +"<br/>";
                })
                $("#incomplete p").html(incomplete);

            }
        });


        $("body").on("click","#upload",function(){
            //将数据打包到formData对象中
            var formData = new FormData();
            formData.append("classes",$("#classes").val());
            formData.append("nameListExcel",$("#nameList")[0].files[0]);

            $.ajax({
                type:"post",
                url:"/upload",
                //dataType:"json",
                data:formData,
                processData: false,
                contentType: false,
                success:function(data){
                    console.log(data);
                    if(data=="ok"){
                        alert("上传成功，即将刷新页面")
                        //刷新当前页面
                        location.reload();
                    }else {
                        alert("上传失败，请重新上传")
                    }
                }
            });
        })
    })

</script>
</html>

签到打卡代码如下：

8.sign-in.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>签到页面</title>
    <script src="http://apps.bdimg.com/libs/jquery/2.1.1/jquery.min.js" type="text/javascript" charset="utf-8"></script>
</head>
<body>

    请输入你的姓名:<input type="text" id="name"/>
    <input type="button" id="sign" value="签到"/>

</body>
<script type="text/javascript">

    $(function () {
        $("body").on("click","#sign",function(){

            $.ajax({
                type:"get",
                url:"/sign",
                data:{"name":$("#name").val()},
                success:function(data){
                    console.log(data);
                    if(data=="ok"){
                        alert("签到成功，返回签到页面")
                        //刷新当前页面
                        location.reload();
                    }else {
                        alert("签到成功，请重新签到")
                    }
                }
            });
        })
    })

</script>
</html>