springboot上傳excel表格到數據庫
- 1.引入相關poi依賴
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi</artifactId>
<version>${poi.version}</version>
</dependency>
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi-ooxml-schemas</artifactId>
<version>${poi.version}</version>
</dependency>
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi-ooxml</artifactId>
<version>${poi.version}</version>
</dependency>
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi</artifactId>
<version>${poi.version}</version>
</dependency>
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- 2.寫出和數據庫對應的實體類
- 3.編寫dao接口
@Mapper
@Service
public interface ExcelDao {
void batchInsert(List<GmVipMember> gmVipMemberList);
}
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-
- service
/**
* 批量導入excel數據
* @author BI
* @date 2019/1/4 - 13:44
*/
public interface ExcelImportService {
Integer importExcel(MultipartFile myFile);
}
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serviceImplhtml
@Service
public class ExcelImportServiceImpl implements ExcelImportService {
//定義excel的格式
private final static String XLS = "xls";
private final static String XLSX = "xlsx";
private final static Logger logger = LoggerFactory.getLogger(ExcelImportServiceImpl.class);
@Autowired
private SqlSessionFactory sqlSessionFactory;
@Autowired
private ExcelDao excelDao;
@Override
public Integer importExcel(MultipartFile myFile) {
//1.使用HSSFWorkbook 打開或者建立"Excel對象"
//2.用HSSFWorkbook返回對象或者建立sheet對象
//3.用sheet返回行對象,用行對象獲得Cell對象
//4.對cell對象進行讀寫
List<GmVipMember> gmVipMembers = new ArrayList<>();
Workbook workbook = null;
String fileName = myFile.getOriginalFilename();//獲取文件名
logger.info("[fileName:{}", fileName);
if (fileName.endsWith(XLS)) {
try {
workbook = new HSSFWorkbook(myFile.getInputStream());//2003版本
} catch (IOException e) {
e.printStackTrace();
}
} else if (fileName.endsWith(XLSX)) {
try {
workbook = new XSSFWorkbook(myFile.getInputStream());//2007版本
} catch (IOException e) {
e.printStackTrace();
}
} else {
throw new ExcelException(ResultEnum.FILE_IS_NOT_EXCEL); //文件不是Excel文件
}
Sheet sheet = workbook.getSheet("sheet1");
int rows = sheet.getLastRowNum();
int cells = sheet.getRow(0).getPhysicalNumberOfCells();
String cell = sheet.getRow(0).getCell(0).getStringCellValue();
logger.info("[rows]{}", rows);
if (rows < 1) {
throw new ExcelException(ResultEnum.DATA_IS_NULL); //數據爲空 請填寫數據
} else if (!cell.equals("卡號")){
throw new ExcelException(ResultEnum.FILE_IS_NOT_TRUEEXCEL); //文件格式不正確
}
long startTime = System.currentTimeMillis();
for (int i = 1; i <= rows + 1; i++) {
Row row = sheet.getRow(i);
//從excel列中讀取數據並set給實體類
if (row != null) {
GmVipMember gm = new GmVipMember();
//會員卡號
String memId = getCellValue(row.getCell(0));
gm.setMemId(memId);
//真實姓名
String realName = getCellValue(row.getCell(1));
gm.setRealName(realName);
String telNum = getCellValue(row.getCell(2));
gm.setTelNum(telNum);
String cid = getCellValue(row.getCell(3));
gm.setCid(cid);
String refereeTelNum = getCellValue(row.getCell(4));
gm.setRefereeTelNum(refereeTelNum);
String refereeName = getCellValue(row.getCell(5));
gm.setRefereeName(refereeName);
String integral = getCellValue(row.getCell(6));
gm.setIntegral(integral);
String birthday = getCellValue(row.getCell(7));
gm.setBirthday(birthday);
String nation = getCellValue(row.getCell(8));
gm.setNation(nation);
String education = getCellValue(row.getCell(9));
gm.setEducation(education);
String isMarry = getCellValue(row.getCell(10));
gm.setIsMarry(isMarry);
String sex = getCellValue(row.getCell(11));
gm.setSex(sex);
String cidAddress = getCellValue(row.getCell(12));
gm.setCidAddress(cidAddress);
String detaileAddress = getCellValue(row.getCell(13));
gm.setDetaileAddress(detaileAddress);
String groupNo = getCellValue(row.getCell(14));
gm.setGroupNo(groupNo);
String email = getCellValue(row.getCell(15));
gm.setEmail(email);
String memName = getCellValue(row.getCell(16));
gm.setMemName(memName);
String password = getCellValue(row.getCell(17));
gm.setPassword(password);
String memProfession = getCellValue(row.getCell(18));
gm.setMemProfession(memProfession);
gmVipMembers.add(gm);
logger.info("插入數據完成");
}
}
excelDao.batchInsert(gmVipMembers); //批量插入 五秒完成
long endTime = System.currentTimeMillis();
long totaltime = endTime - startTime;
logger.info("[消耗時間爲]{}", totaltime);
logger.info("[第一條數據爲]{}", JSON.toJSON(gmVipMembers.get(0)));
return rows;
}
public String getCellValue(Cell cell) {
String value = "";
if (cell != null) {
switch (cell.getCellType()) {
case HSSFCell.CELL_TYPE_NUMERIC:// 數字
value = cell.getNumericCellValue() + " ";
if (HSSFDateUtil.isCellDateFormatted(cell)) {
Date date = cell.getDateCellValue();
if (date != null) {
value = new SimpleDateFormat("yyyy-MM-dd").format(date); // 日期格式化
} else {
value = "";
}
} else {
// 解析cell時候 數字類型默認是double類型的 可是想要獲取整數類型 須要格式化
value = new DecimalFormat("0").format(cell.getNumericCellValue());
}
break;
case HSSFCell.CELL_TYPE_STRING: // 字符串
value = cell.getStringCellValue();
break;
case HSSFCell.CELL_TYPE_BOOLEAN: // Boolean類型
value = cell.getBooleanCellValue() + "";
break;
case HSSFCell.CELL_TYPE_BLANK: // 空值
value = "";
break;
case HSSFCell.CELL_TYPE_ERROR: // 錯誤類型
value = "非法字符";
break;
default:
value = "未知類型";
break;
}
}
return value.trim();
}
}
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- 5.mapper.xml
因爲excel表格是多條數據,因此放到集合裏面遍歷賦值java
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
<mapper namespace="com.gmos.vip.system.dao.ExcelDao">
<insert id="batchInsert" parameterType="java.util.List">
insert into gm_vip_member (id, mem_id, real_name,
tel_num, cid, referee_tel_num,
referee_name, integral, birthday,
nation, education, is_marry,
sex, cid_address, detaile_address,
group_no, email, mem_name,
password, mem_profession)
values
<foreach collection="list" item="item" index="index" separator=",">
(#{item.id,jdbcType=INTEGER}, #{item.memId,jdbcType=VARCHAR}, #{item.realName,jdbcType=VARCHAR},
#{item.telNum,jdbcType=VARCHAR}, #{item.cid,jdbcType=VARCHAR}, #{item.refereeTelNum,jdbcType=VARCHAR},
#{item.refereeName,jdbcType=VARCHAR}, #{item.integral,jdbcType=VARCHAR}, #{item.birthday,jdbcType=DATE},
#{item.nation,jdbcType=VARCHAR}, #{item.education,jdbcType=VARCHAR}, #{item.isMarry,jdbcType=VARCHAR},
#{item.sex,jdbcType=VARCHAR}, #{item.cidAddress,jdbcType=VARCHAR}, #{item.detaileAddress,jdbcType=VARCHAR},
#{item.groupNo,jdbcType=VARCHAR}, #{item.email,jdbcType=VARCHAR}, #{item.memName,jdbcType=VARCHAR},
#{item.password,jdbcType=VARCHAR}, #{item.memProfession,jdbcType=VARCHAR})
</foreach>
</insert>
</mapper>
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- 6.前臺index.html頁面
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>上傳excel表格測試</title>
</head>
<body>
<form role="form" action="/importExcel" method="post" enctype="multipart/form-data">
<div class="form-group">
<label for="exampleInputFile">上傳Excel數據表</label>
<input type="file" id="exampleInputFile" name="myFile">
<p class="help-block">請選擇合適的Excel模板文件</p>
</div>
<button type="submit" class="btn btn-info">導入</button>
</form>
<h1>==========================================</h1>
<form role="form" action="/downloadExcel" method="post" enctype="multipart/form-data">
<div class="form-group">
<label>下載Excel模板</label>
</div>
<button type="submit" class="btn btn-info">下載</button>
</form>
<h1>=====從數據庫導出數據到excel=====================================</h1>
<form role="form" action="/downMysqlForExcel" method="post" enctype="multipart/form-data">
<div class="form-group">
<label>導出數據到excel</label>
</div>
<button type="submit" class="btn btn-info">下載</button>
</form>
</body>
</html>
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- 7.controller
跳轉到導入頁面的控制器web
@Controller
@CrossOrigin(value = "*")//容許跨域訪問
public class ExcelPageController {
@RequestMapping(value = "/importExcelHtml")
public String excelHtml() {
return "index";
}
}
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controller:spring
1.導入excel數據到sql
2.下載空的excel模板數據庫
2.從數據庫導出數據到excelapache
package com.gmos.vip.system.controller;
import com.gmos.vip.system.dao.GmVipMemberMapper;
import com.gmos.vip.system.model.GmVipMember;
import com.gmos.vip.system.service.ExcelImportService;
import com.gmos.vip.system.service.GmUserService;
import com.gmos.vip.system.service.GmVipMemberService;
import com.sun.deploy.net.HttpResponse;
import org.apache.poi.hssf.usermodel.*;
import org.json.JSONException;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.multipart.MultipartHttpServletRequest;
import org.springframework.web.servlet.ModelAndView;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.*;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/**
* @author BI
* @date 2019/1/4 - 13:52
*/
@RestController
@CrossOrigin(value = "*")//容許跨域訪問
public class ExcelController {
private final static org.slf4j.Logger logger = LoggerFactory.getLogger(ExcelController.class);
@Autowired
private ExcelImportService excelImportService;
@Autowired
private GmVipMemberService gmVipMemberService;
/*
Excel導入數據到數據庫
*/
@PostMapping("/importExcel")
public Map importExcel(@RequestParam(value = "myFile", required = true) MultipartFile myFile, HttpServletRequest request) throws JSONException {
if (request instanceof MultipartHttpServletRequest) {
ModelAndView modelAndView = new ModelAndView();
Integer nums = excelImportService.importExcel(myFile);
modelAndView.addObject("msg", "導入數據成功");
}
Map map = new HashMap();
map.put("msg", "導入成功");
return map;
}
/*
下載一個空的模板
*/
@PostMapping("/downloadExcel")
public String downloadFile(HttpServletRequest request, HttpServletResponse response) {
String fileName = "vipTemplate.xlsx";// 設置文件名，根據業務須要替換成要下載的文件名
if (fileName != null) {
//設置文件路徑
//String realPath = "F://upfile//";
String realPath = "D://JAVA//ideaWorkSpace//gmos-vip//src//main//resources//templates//ExcelTemplates";
File file = new File(realPath, fileName);
if (file.exists()) {
response.setContentType("application/force-download");// 設置強制下載不打開
response.addHeader("Content-Disposition", "attachment;fileName=" + fileName);// 設置文件名
byte[] buffer = new byte[1024];
FileInputStream fis = null;
BufferedInputStream bis = null;
try {
fis = new FileInputStream(file);
bis = new BufferedInputStream(fis);
OutputStream os = response.getOutputStream();
int i = bis.read(buffer);
while (i != -1) {
os.write(buffer, 0, i);
i = bis.read(buffer);
}
logger.info("下載成功");
} catch (Exception e) {
e.printStackTrace();
} finally {
if (bis != null) {
try {
bis.close();
} catch (IOException e) {
e.printStackTrace();
}
}
if (fis != null) {
try {
fis.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
}
return null;
}
/*
從數據庫導出數據到excel
/
@PostMapping("/downMysqlForExcel")
public void downloadMysqlForExcel(HttpServletResponse response) throws Exception {
HSSFWorkbook workbook = new HSSFWorkbook();
HSSFSheet sheet = workbook.createSheet("信息表");
//這裏的查詢接口和mapper須要本身寫,我調的是查詢全部
List<GmVipMember> gmVipMembers = gmVipMemberService.findAll();
String fileName = "vipInfo"+".xlsx"; //設置要導出的文件的名字
//新增單元行,而且設置單元格數據
int rowNum = 1;
//headers表示excel表中第一行的表頭
String[] headers = {"卡號","真實姓名","手機號","身份證號碼","推薦人手機號","推薦人姓名","積分","出生年月","民族","學歷","婚姻情況","性別",
"身份證地址","詳細住址","羣號","郵箱","會員用戶名","會員密碼","職業"};
//在excel中添加表頭
HSSFRow row = sheet.createRow(0);
for(int i=0;i<headers.length;i++){
HSSFCell cell = row.createCell(i);
HSSFRichTextString text = new HSSFRichTextString(headers[i]);
cell.setCellValue(text);
}
//在表中存放查詢到的數據放入對應的列
for(GmVipMember gmVip:gmVipMembers){
HSSFRow row1 = sheet.createRow(rowNum);
row1.createCell(0).setCellValue(gmVip.getMemId());
row1.createCell(1).setCellValue(gmVip.getRealName());
row1.createCell(2).setCellValue(gmVip.getTelNum());
row1.createCell(3).setCellValue(gmVip.getCid());
row1.createCell(4).setCellValue(gmVip.getRefereeTelNum());
row1.createCell(5).setCellValue(gmVip.getRefereeName());
row1.createCell(6).setCellValue(gmVip.getIntegral());
row1.createCell(7).setCellValue(gmVip.getBirthday());
row1.createCell(8).setCellValue(gmVip.getNation());
row1.createCell(9).setCellValue(gmVip.getEducation());
row1.createCell(10).setCellValue(gmVip.getIsMarry());
row1.createCell(11).setCellValue(gmVip.getSex());
row1.createCell(12).setCellValue(gmVip.getCidAddress());
row1.createCell(13).setCellValue(gmVip.getDetaileAddress());
row1.createCell(14).setCellValue(gmVip.getGroupNo());
row1.createCell(15).setCellValue(gmVip.getEmail());
row1.createCell(16).setCellValue(gmVip.getMemName());
row1.createCell(17).setCellValue(gmVip.getPassword());
row1.createCell(18).setCellValue(gmVip.getMemProfession());
rowNum++;
}
response.setContentType("application/octet-stream");
response.setHeader("Content-disposition", "attachment;filename=" + fileName);
response.flushBuffer();
workbook.write(response.getOutputStream());
}
}
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