java表格导入、导出POI
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创建工具类PoiUtils.java：
导出方法：
public static ResponseEntity exportEmp2Excel(List emps) {
HttpHeaders headers = null;
ByteArrayOutputStream baos = null;
try {
//1.创建Excel文档
HSSFWorkbook workbook = new HSSFWorkbook();
//2.创建文档摘要
workbook.createInformationProperties();
//3.获取文档信息，并配置
DocumentSummaryInformation dsi = workbook.getDocumentSummaryInformation();
//3.1文档类别
dsi.setCategory("员工信息");
//3.2设置文档管理员
dsi.setManager("江南一点雨");
//3.3设置组织机构
dsi.setCompany("XXX集团");
//4.获取摘要信息并配置
SummaryInformation si = workbook.getSummaryInformation();
//4.1设置文档主题
si.setSubject("员工信息表");
//4.2.设置文档标题
si.setTitle("员工信息");
//4.3 设置文档作者
si.setAuthor("XXX集团");
//4.4设置文档备注
si.setComments("备注信息暂无");
//创建Excel表单
HSSFSheet sheet = workbook.createSheet("XXX集团员工信息表");
//创建日期显示格式
HSSFCellStyle dateCellStyle = workbook.createCellStyle();
dateCellStyle.setDataFormat(HSSFDataFormat.getBuiltinFormat("m/d/yy"));
//创建标题的显示样式
HSSFCellStyle headerStyle = workbook.createCellStyle();
headerStyle.setFillForegroundColor(IndexedColors.YELLOW.index);
headerStyle.setFillPattern(FillPatternType.SOLID_FOREGROUND);
//定义列的宽度
sheet.setColumnWidth(0, 5 * 256);
sheet.setColumnWidth(1, 12 * 256);
sheet.setColumnWidth(2, 10 * 256);
sheet.setColumnWidth(3, 5 * 256);
sheet.setColumnWidth(4, 12 * 256);
sheet.setColumnWidth(5, 20 * 256);
sheet.setColumnWidth(6, 10 * 256);
sheet.setColumnWidth(7, 10 * 256);
sheet.setColumnWidth(8, 16 * 256);
sheet.setColumnWidth(9, 12 * 256);
sheet.setColumnWidth(10, 15 * 256);
sheet.setColumnWidth(11, 20 * 256);
sheet.setColumnWidth(12, 16 * 256);
sheet.setColumnWidth(13, 14 * 256);
sheet.setColumnWidth(14, 14 * 256);
sheet.setColumnWidth(15, 12 * 256);
sheet.setColumnWidth(16, 8 * 256);
sheet.setColumnWidth(17, 16 * 256);
sheet.setColumnWidth(18, 20 * 256);
sheet.setColumnWidth(19, 12 * 256);
sheet.setColumnWidth(20, 8 * 256);
sheet.setColumnWidth(21, 25 * 256);
sheet.setColumnWidth(22, 14 * 256);
sheet.setColumnWidth(23, 12 * 256);
sheet.setColumnWidth(24, 12 * 256);
//5.设置表头
HSSFRow headerRow = sheet.createRow(0);
HSSFCell cell0 = headerRow.createCell(0);
cell0.setCellValue("编号");
cell0.setCellStyle(headerStyle);
HSSFCell cell1 = headerRow.createCell(1);
cell1.setCellValue("姓名");
cell1.setCellStyle(headerStyle);
HSSFCell cell2 = headerRow.createCell(2);
cell2.setCellValue("工号");
cell2.setCellStyle(headerStyle);
HSSFCell cell3 = headerRow.createCell(3);
cell3.setCellValue("性别");
cell3.setCellStyle(headerStyle);
HSSFCell cell4 = headerRow.createCell(4);
cell4.setCellValue("出生日期");
cell4.setCellStyle(headerStyle);
HSSFCell cell5 = headerRow.createCell(5);
cell5.setCellValue("身份证号码");
cell5.setCellStyle(headerStyle);
HSSFCell cell6 = headerRow.createCell(6);
cell6.setCellValue("婚姻状况");
cell6.setCellStyle(headerStyle);
HSSFCell cell7 = headerRow.createCell(7);
cell7.setCellValue("民族");
cell7.setCellStyle(headerStyle);
HSSFCell cell8 = headerRow.createCell(8);
cell8.setCellValue("籍贯");
cell8.setCellStyle(headerStyle);
HSSFCell cell9 = headerRow.createCell(9);
cell9.setCellValue("政治面貌");
cell9.setCellStyle(headerStyle);
HSSFCell cell10 = headerRow.createCell(10);
cell10.setCellValue("电话号码");
cell10.setCellStyle(headerStyle);
HSSFCell cell11 = headerRow.createCell(11);
cell11.setCellValue("联系地址");
cell11.setCellStyle(headerStyle);
HSSFCell cell12 = headerRow.createCell(12);
cell12.setCellValue("所属部门");
cell12.setCellStyle(headerStyle);
HSSFCell cell13 = headerRow.createCell(13);
cell13.setCellValue("职称");
cell13.setCellStyle(headerStyle);
HSSFCell cell14 = headerRow.createCell(14);
cell14.setCellValue("职位");
cell14.setCellStyle(headerStyle);
HSSFCell cell15 = headerRow.createCell(15);
cell15.setCellValue("聘用形式");
cell15.setCellStyle(headerStyle);
HSSFCell cell16 = headerRow.createCell(16);
cell16.setCellValue("最高学历");
cell16.setCellStyle(headerStyle);
HSSFCell cell17 = headerRow.createCell(17);
cell17.setCellValue("专业");
cell17.setCellStyle(headerStyle);
HSSFCell cell18 = headerRow.createCell(18);
cell18.setCellValue("毕业院校");
cell18.setCellStyle(headerStyle);
HSSFCell cell19 = headerRow.createCell(19);
cell19.setCellValue("入职日期");
cell19.setCellStyle(headerStyle);
HSSFCell cell20 = headerRow.createCell(20);
cell20.setCellValue("在职状态");
cell20.setCellStyle(headerStyle);
HSSFCell cell21 = headerRow.createCell(21);
cell21.setCellValue("邮箱");
cell21.setCellStyle(headerStyle);
HSSFCell cell22 = headerRow.createCell(22);
cell22.setCellValue("合同期限(年)");
cell22.setCellStyle(headerStyle);
HSSFCell cell23 = headerRow.createCell(23);
cell23.setCellValue("合同起始日期");
cell23.setCellStyle(headerStyle);
HSSFCell cell24 = headerRow.createCell(24);
cell24.setCellValue("合同终止日期");
cell24.setCellStyle(headerStyle);
//6.装数据
for (int i = 0; i < emps.size(); i++) {
HSSFRow row = sheet.createRow(i + 1);
Employee emp = emps.get(i);
row.createCell(0).setCellValue(emp.getId());
row.createCell(1).setCellValue(emp.getName());
row.createCell(2).setCellValue(emp.getWorkID());
row.createCell(3).setCellValue(emp.getGender());
HSSFCell birthdayCell = row.createCell(4);
birthdayCell.setCellValue(emp.getBirthday());
birthdayCell.setCellStyle(dateCellStyle);
row.createCell(5).setCellValue(emp.getIdCard());
row.createCell(6).setCellValue(emp.getWedlock());
row.createCell(7).setCellValue(emp.getNation().getName());
row.createCell(8).setCellValue(emp.getNativePlace());
row.createCell(9).setCellValue(emp.getPoliticsStatus().getName());
row.createCell(10).setCellValue(emp.getPhone());
row.createCell(11).setCellValue(emp.getAddress());
row.createCell(12).setCellValue(emp.getDepartment().getName());
row.createCell(13).setCellValue(emp.getJobLevel().getName());
row.createCell(14).setCellValue(emp.getPosition().getName());
row.createCell(15).setCellValue(emp.getEngageForm());
row.createCell(16).setCellValue(emp.getTiptopDegree());
row.createCell(17).setCellValue(emp.getSpecialty());
row.createCell(18).setCellValue(emp.getSchool());
HSSFCell beginDateCell = row.createCell(19);
beginDateCell.setCellValue(emp.getBeginDate());
beginDateCell.setCellStyle(dateCellStyle);
row.createCell(20).setCellValue(emp.getWorkState());
row.createCell(21).setCellValue(emp.getEmail());
row.createCell(22).setCellValue(emp.getContractTerm());
HSSFCell beginContractCell = row.createCell(23);
beginContractCell.setCellValue(emp.getBeginContract());
beginContractCell.setCellStyle(dateCellStyle);
HSSFCell endContractCell = row.createCell(24);
endContractCell.setCellValue(emp.getEndContract());
endContractCell.setCellStyle(dateCellStyle);
}
headers = new HttpHeaders();
headers.setContentDispositionFormData("attachment",
new String("员工表.xls".getBytes("UTF-8"), "iso-8859-1"));
headers.setContentType(MediaType.APPLICATION_OCTET_STREAM);
baos = new ByteArrayOutputStream();
workbook.write(baos);
} catch (IOException e) {
e.printStackTrace();
}
return new ResponseEntity(baos.toByteArray(), headers, HttpStatus.CREATED);
}
导入方法：
public static List importEmp2List(MultipartFile file,
List allNations,
List allPolitics,
List allDeps,
List allPos,
List allJobLevels) {
List emps = new ArrayList<>();
try {
HSSFWorkbook workbook =
new HSSFWorkbook(new POIFSFileSystem(file.getInputStream()));
int numberOfSheets = workbook.getNumberOfSheets();
for (int i = 0; i < numberOfSheets; i++) {
HSSFSheet sheet = workbook.getSheetAt(i);
int physicalNumberOfRows = sheet.getPhysicalNumberOfRows();
Employee employee;
for (int j = 0; j < physicalNumberOfRows; j++) {
if (j == 0) {
continue;//标题行
}
HSSFRow row = sheet.getRow(j);
if (row == null) {
continue;//没数据
}
int physicalNumberOfCells = row.getPhysicalNumberOfCells();
employee = new Employee();
for (int k = 0; k < physicalNumberOfCells; k++) {
HSSFCell cell = row.getCell(k);
switch (cell.getCellTypeEnum()) {
case STRING: {
String cellValue = cell.getStringCellValue();
if (cellValue == null) {
cellValue = "";
}
switch (k) {
case 1:
employee.setName(cellValue);
break;
case 2:
employee.setWorkID(cellValue);
break;
case 3:
employee.setGender(cellValue);
break;
case 5:
employee.setIdCard(cellValue);
break;
case 6:
employee.setWedlock(cellValue);
break;
case 7:
int nationIndex = allNations.indexOf(new Nation(cellValue));
employee.setNationId(allNations.get(nationIndex).getId());
break;
case 8:
employee.setNativePlace(cellValue);
break;
case 9:
int psIndex = allPolitics.indexOf(new PoliticsStatus(cellValue));
employee.setPoliticId(allPolitics.get(psIndex).getId());
break;
case 10:
employee.setPhone(cellValue);
break;
case 11:
employee.setAddress(cellValue);
break;
case 12:
int depIndex = allDeps.indexOf(new Department(cellValue));
employee.setDepartmentId(allDeps.get(depIndex).getId());
break;
case 13:
int jlIndex = allJobLevels.indexOf(new JobLevel(cellValue));
employee.setJobLevelId(allJobLevels.get(jlIndex).getId());
break;
case 14:
int posIndex = allPos.indexOf(new Position(cellValue));
employee.setPosId(allPos.get(posIndex).getId());
break;
case 15:
employee.setEngageForm(cellValue);
break;
case 16:
employee.setTiptopDegree(cellValue);
break;
case 17:
employee.setSpecialty(cellValue);
break;
case 18:
employee.setSchool(cellValue);
break;
case 19:
case 20:
employee.setWorkState(cellValue);
break;
case 21:
employee.setEmail(cellValue);
break;
}
}
break;
default: {
switch (k) {
case 4:
employee.setBirthday(cell.getDateCellValue());
break;
case 19:
employee.setBeginDate(cell.getDateCellValue());
break;
case 22:
employee.setContractTerm(cell.getNumericCellValue());
break;
case 23:
employee.setBeginContract(cell.getDateCellValue());
break;
case 24:
employee.setEndContract(cell.getDateCellValue());
break;
}
}
break;
}
}
emps.add(employee);
}
}
} catch (IOException e) {
e.printStackTrace();
}
return emps;
}