Java 使用HSSFSheet将列格式类型设置为日期或时间
我想将我的列移动时间设置为时间/日期时间类型列。 我试过了Java 使用HSSFSheet将列格式类型设置为日期或时间,java,excel,apache-poi,Java,Excel,Apache Poi,我想将我的列移动时间设置为时间/日期时间类型列。 我试过了 protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // TODO Auto-generated method stub DAO d0 = new DAO(); Map<Stri
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
// TODO Auto-generated method stub
DAO d0 = new DAO();
Map<String, String> AllUsermap = new HashMap<String, String>();
AllUsermap = d0.colleagueMap(Integer.parseInt(request.getParameter("lid")), request.getParameter("ltype"));
String date = request.getParameter("date");
response.setContentType("application/vnd.ms-excel");
response.setHeader("Content-Disposition",
"attachment; filename=All Employees Tracking Report [Date]:" + date + ".xls");
Workbook workbook = new HSSFWorkbook();
Font font = workbook.createFont();
font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
CellStyle HeaderStyle = workbook.createCellStyle();
HeaderStyle.setFont(font);
for (String userK : AllUsermap.keySet()) {
String userinfo[] = userK.split("-");
String userinfoval[] = AllUsermap.get(userK).split("-");
if (userinfo.length == 2 && userinfoval.length == 3) {
Sheet sheet = workbook.createSheet(userinfoval[0]);
// header
Row row = sheet.createRow(0);
Cell serial = row.createCell(0);
serial.setCellValue("#");
serial.setCellStyle(HeaderStyle);
serial = row.createCell(1);
serial.setCellValue("LOCATION");
serial.setCellStyle(HeaderStyle);
serial = row.createCell(2);
serial.setCellValue("DISTANCE");
serial.setCellStyle(HeaderStyle);
serial = row.createCell(3);
serial.setCellValue("BATTERY");
serial.setCellStyle(HeaderStyle);
serial = row.createCell(4);
serial.setCellValue("SPEED");
serial.setCellStyle(HeaderStyle);
serial = row.createCell(5);
serial.setCellValue("GPS_ACCURACY");
serial.setCellStyle(HeaderStyle);
serial = row.createCell(6);
serial.setCellValue("STATUS");
serial.setCellStyle(HeaderStyle);
serial = row.createCell(7);
serial.setCellType(1);
serial.setCellValue("MOBILE_TIME");
serial.setCellStyle(HeaderStyle);
serial = row.createCell(8);
serial.setCellValue("SPEED");
serial.setCellStyle(HeaderStyle);
// End Header
List<DailyReport> adr = new ArrayList<DailyReport>();
adr = d0.seletspecificdailyreport(Integer.parseInt(userinfo[0]), date, userinfo[1]);
if (adr.size() > 0) {
List<DailyReportDetails> adlrd = new ArrayList<DailyReportDetails>();
adlrd = d0.seletdailyreportdetails(adr.get(0).getIdDailyReport());
int i = 1;
for (DailyReportDetails drd : adlrd) {
row = sheet.createRow(i);
Cell cell = row.createCell(0);
cell.setCellValue(i);
cell = row.createCell(1);
cell.setCellValue(drd.getLocation());
cell = row.createCell(2);
cell.setCellValue(drd.getDistance());
cell = row.createCell(3);
cell.setCellValue(drd.getBattery());
cell = row.createCell(4);
cell.setCellValue(drd.getSpeed());
cell = row.createCell(5);
cell.setCellValue(drd.getAccuracy());
cell = row.createCell(6);
cell.setCellValue(drd.getOffline() == 1 ? "ONLINE" : "OFFLINE");
cell = row.createCell(7);
cell.setCellValue(drd.getMobiletime());
cell = row.createCell(8);
cell.setCellValue(userinfoval[2]);
i++;
}
}
}
}
workbook.write(response.getOutputStream()); // Write workbook to
// response.
workbook.close();
}
并在生成行的末尾尝试了下面的行
但时间列仍然是字符格式。正确的解决方案是什么 您可以这样做:
Workbook wb = new HSSFWorkbook();
//Workbook wb = new XSSFWorkbook();
CreationHelper createHelper = wb.getCreationHelper();
Sheet sheet = wb.createSheet("new sheet");
// Create a row and put some cells in it. Rows are 0 based.
Row row = sheet.createRow(0);
// Create a cell and put a date value in it. The first cell is not styled
// as a date.
Cell cell = row.createCell(0);
cell.setCellValue(new Date());
// we style the second cell as a date (and time). It is important to
// create a new cell style from the workbook otherwise you can end up
// modifying the built in style and effecting not only this cell but other cells.
CellStyle cellStyle = wb.createCellStyle();
cellStyle.setDataFormat(
createHelper.createDataFormat().getFormat("m/d/yy h:mm"));
cell = row.createCell(1);
cell.setCellValue(new Date());
cell.setCellStyle(cellStyle);
//you can also set date as java.util.Calendar
cell = row.createCell(2);
cell.setCellValue(Calendar.getInstance());
cell.setCellStyle(cellStyle);
// Write the output to a file
FileOutputStream fileOut = new FileOutputStream("workbook.xls");
wb.write(fileOut);
fileOut.close();
通过在excel工作簿.xls文件中插入一些行来编辑您的答案如果此答案解决了您的问题,您可以接受它,以便成为其他人的原型不需要原型,只需在程序中添加一些虚拟行即可
cell = row.createCell(7);
try {
cell.setCellValue(new SimpleDateFormat("HH:mm:ss").parse(drd.getMobiletime()));
} catch (ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
Workbook wb = new HSSFWorkbook();
//Workbook wb = new XSSFWorkbook();
CreationHelper createHelper = wb.getCreationHelper();
Sheet sheet = wb.createSheet("new sheet");
// Create a row and put some cells in it. Rows are 0 based.
Row row = sheet.createRow(0);
// Create a cell and put a date value in it. The first cell is not styled
// as a date.
Cell cell = row.createCell(0);
cell.setCellValue(new Date());
// we style the second cell as a date (and time). It is important to
// create a new cell style from the workbook otherwise you can end up
// modifying the built in style and effecting not only this cell but other cells.
CellStyle cellStyle = wb.createCellStyle();
cellStyle.setDataFormat(
createHelper.createDataFormat().getFormat("m/d/yy h:mm"));
cell = row.createCell(1);
cell.setCellValue(new Date());
cell.setCellStyle(cellStyle);
//you can also set date as java.util.Calendar
cell = row.createCell(2);
cell.setCellValue(Calendar.getInstance());
cell.setCellStyle(cellStyle);
// Write the output to a file
FileOutputStream fileOut = new FileOutputStream("workbook.xls");
wb.write(fileOut);
fileOut.close();