使用Mongodb實(shí)現(xiàn)打卡簽到系統(tǒng)的實(shí)例代碼

 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>

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; /** * 上傳文件 * @param classes * @param nameListExcel * @return */ @Override public String upload(String classes, MultipartFile nameListExcel) { String result = "no"; if (nameListExcel == null) { return result; } //實(shí)例化對(duì)象列表，用于存儲(chǔ)Excel中的數(shù)據(jù)
  ListAttend> attendList = new ArrayListAttend>(); //讀取文件對(duì)象nameListExcel 中的數(shù)據(jù)（讀取Excel中每一行數(shù)據(jù)，存到對(duì)象，存到對(duì)象列表中）
  try { //根據(jù)路徑獲取這個(gè)操作excel的實(shí)例
   HSSFWorkbook wb = new HSSFWorkbook(nameListExcel.getInputStream()); //根據(jù)頁(yè)面index 獲取sheet頁(yè)
   HSSFSheet sheet = wb.getSheetAt(0); HSSFRow row = null; //循環(huán)sesheet頁(yè)中數(shù)據(jù)從第二行開(kāi)始，第一行是標(biāo)題
   for (int i = 1; i  sheet.getPhysicalNumberOfRows(); i++) { //獲取每一行數(shù)據(jù)
    row = sheet.getRow(i); Attend attend = new Attend(); //下面cellnum對(duì)應(yīng)著下標(biāo)，id是第一位對(duì)應(yīng)著下標(biāo)為0，name是第二位對(duì)應(yīng)的下標(biāo)為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中的數(shù)據(jù):" + attendList); /** * 如果成功就，寫(xiě)入mongodb中 */ attendRepository.saveAll(attendList); result = "ok"; return result; } /** * 簽到 * @param name * @return */ @Override public String sign(String name) { Query query = Query.query(Criteria.where("name").is(name)); //局部修改的內(nèi)容
  Update update = new Update(); update.set("sign", 1); //attend 集合名 對(duì)應(yīng)實(shí)體的集合名
  mongoTemplate.updateFirst(query, update, "attend"); return "ok"; } /** * 全查詢(xún)學(xué)生信息 * @param sign * @return */ @Override public ListAttend> findAllBySign(Integer sign) { return attendRepository.findAllBySign(sign); } }

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)
{ /** * 將名字傳給服務(wù)層，mongodb修改登錄狀態(tài) 
*/ attendService.sign(name); return "ok"; 
} 
/** * 上傳文件 * @param classes * @param nameListExcel * @return 
*/ @PostMapping("/upload") 
public String upload(String classes, MultipartFile nameListExcel)
{
/** * 接收到前臺(tái)傳過(guò)來(lái)的文件對(duì)象，交給service層或者Excel工具類(lèi)來(lái)解析數(shù)據(jù)
* System.out.println("接收前臺(tái)表單提交數(shù)據(jù)："+classes+nameListExcel);
*/ String result = attendService.upload(classes,nameListExcel);
return result;
} 
/** * 查詢(xún)未簽到同學(xué) 和已簽到同學(xué)
* @return */ @GetMapping("/list")
public Map list(){ Map result = new HashMapString,Object>(); /** * 已簽到 */ ListAttend> 
complete = attendService.findAllBySign(1);
result.put("complete",complete); /** * 未簽到 */ ListAttend> 
incomplete = attendService.findAllBySign(0);
result.put("incomplete",incomplete); 
return result;
} 
}

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

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

!DOCTYPE html>
html lang="en">
head>
 meta charset="UTF-8">
 title>考勤管理頁(yè)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>導(dǎo)入名單/h3> 班級(jí)名稱(chēng)： input type="text" name="classes" id="classes"/> 請(qǐng)選擇導(dǎo)入文件 input type="file" name="nameList" id="nameList"/>
 input type="button" id="upload" value="上傳">
 hr/>

 div id="incomplete">
  h3>未簽到的/h3>
  p>/p>

 /div>

 div id="complete">
  h3>已簽到/h3>
  p>/p>
 /div>

/body>
script type="text/javascript"> $(function () { //初始化頁(yè)面查詢(xún)結(jié)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); } }); $("body").on("click","#upload",function(){ //將數(shù)據(jù)打包到formData對(duì)象中
   var formData = new FormData(); formData.append("classes",$("#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("上傳成功，即將刷新頁(yè)面") //刷新當(dāng)前頁(yè)面
 location.reload(); }else { alert("上傳失敗，請(qǐng)重新上傳") } } }); }) }) /script>
/html>

!DOCTYPE html>
html lang="en">
head>
 meta charset="UTF-8">
 title>簽到頁(yè)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> 請(qǐng)輸入你的姓名:input type="text" id="name"/>
 input type="button" id="sign" value="簽到"/>

/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("簽到成功，返回簽到頁(yè)面") //刷新當(dāng)前頁(yè)面
 location.reload(); }else { alert("簽到成功，請(qǐng)重新簽到") } } }); }) }) /script>
/html>