Apache-POI 在 Excel 中设置值，但另一个单元格的公式无法使用该值，直到我在处理条中手动按下 enter
Apache-POI sets values in Excel, but the formula of another cell is unable to work with the value until I manually press enter in the processing strip
我写了一个程序，将值写入 xlsx 文件。乍一看，它似乎可以正常工作。但是在我的 xlsx 文件中，我在另一个单元格中有一个公式，如果我手动输入值，它应该可以正常工作，但如果我的程序设置完全相同的值，它就不会像它应该的那样工作。如果我在我的程序写入一个值后手动打开文件并通过按处理条中的回车按钮确认写入的值，它会像它应该的那样工作。没有抛出异常。我的程序在单元格 N4 和 O4 中写入。这是我正在谈论的单元格的 Excel 公式：
=+MAX(;MIN(O4+(N4>O4);MAX(($N>$O);$O))-MAX(N4;$N))+MAX(;MIN(O4;MAX(($N>$O);$O))-MAX(;$N))(N4>O4)+MAX(;MIN(O4+(N4>O4);MIN(($N>$O);$O))-MAX(N4;))+MIN(O4;MIN(($N>$O);$O))(N4>O4)
N2 和 O2 包括预选值，这些值与 N4 和 O4 的值进行比较。
这是我的 Java 代码：
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.sql.Date;
import java.text.SimpleDateFormat;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.JCheckBox;
import javax.swing.JComboBox;
import javax.swing.JTable;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.CellStyle;
import org.apache.poi.ss.usermodel.CreationHelper;
import org.apache.poi.ss.usermodel.IndexedColors;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.xssf.usermodel.*;
public class XLSXEditor {
public XLSXEditor(){
}
public void searchWriter(String path, JTable t1) throws FileNotFoundException, IOException{
File excel = new File(path);
FileInputStream fis = new FileInputStream(excel);
XSSFWorkbook book = new XSSFWorkbook(fis);
XSSFSheet sheet = book.getSheetAt(1);
int r = getNonBlankRowCount(path);
String uname = "404";
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
java.util.Date parsed = null;
java.sql.Date date = null;
//Datum Style
CellStyle csDate = book.createCellStyle();
CreationHelper createHelper = book.getCreationHelper();
csDate.setDataFormat(createHelper.createDataFormat().getFormat("dd.mm.yyyy"));
csDate.setBorderBottom(XSSFCellStyle.BORDER_THIN);
csDate.setBorderTop(XSSFCellStyle.BORDER_THIN);
csDate.setBorderLeft(XSSFCellStyle.BORDER_THIN);
csDate.setBorderRight(XSSFCellStyle.BORDER_THIN);
csDate.setFillForegroundColor(IndexedColors.LIGHT_TURQUOISE.getIndex());
csDate.setFillPattern(CellStyle.SOLID_FOREGROUND);
//uname style
CellStyle csUname = book.createCellStyle();
csUname.setBorderBottom(XSSFCellStyle.BORDER_THIN);
csUname.setBorderTop(XSSFCellStyle.BORDER_THIN);
csUname.setBorderLeft(XSSFCellStyle.BORDER_THIN);
csUname.setBorderRight(XSSFCellStyle.BORDER_THIN);
csUname.setFillForegroundColor(IndexedColors.LIGHT_TURQUOISE.getIndex());
csUname.setFillPattern(CellStyle.SOLID_FOREGROUND);
//time style
CellStyle csTime = book.createCellStyle();
csTime.setBorderTop(XSSFCellStyle.BORDER_THIN);
csTime.setBorderBottom(XSSFCellStyle.BORDER_THIN);
csTime.setBorderLeft(XSSFCellStyle.BORDER_THIN);
csTime.setBorderRight(XSSFCellStyle.BORDER_THIN);
csTime.setFillForegroundColor(IndexedColors.LIGHT_TURQUOISE.getIndex());
csTime.setDataFormat(createHelper.createDataFormat().getFormat("hh:mm"));
csTime.setFillPattern(CellStyle.SOLID_FOREGROUND);
csTime.setVerticalAlignment(CellStyle.ALIGN_CENTER);
csTime.setAlignment(CellStyle.ALIGN_CENTER);
System.out.println(getFilledRows(t1));
for(int i=0; i<getFilledRows(t1); i++){
System.out.println(r);
XSSFRow row = sheet.getRow(r);
//fill username column in xlsx file
XSSFCell celluName = row.getCell(0, Row.RETURN_BLANK_AS_NULL);
if(celluName != null){
r++;
}
if(celluName == null){
celluName = sheet.getRow(r).createCell(0);
celluName.setCellStyle(csUname);
uname = t1.getValueAt(i, 0).toString().charAt(0) +""+ t1.getValueAt(i, 1);
celluName.setCellValue(uname);
r++;
}
r--;
//fill date column in xlsx file
XSSFCell cellDate = row.getCell(5, Row.RETURN_BLANK_AS_NULL);
System.out.println("r = " + r);
cellDate = sheet.getRow(r).createCell(5);
cellDate.setCellStyle(csDate);
try{
parsed = sdf.parse(t1.getValueAt(i, 2).toString());
}
catch(Exception e){
System.out.println(e);
}
date = new java.sql.Date(parsed.getTime());
cellDate.setCellValue(date);
//fill zeit von
if(!(t1.getValueAt(i, 6).toString().equals("Standby not activated"))){
XSSFCell cellTimeF = row.getCell(13, Row.RETURN_BLANK_AS_NULL);
cellTimeF = sheet.getRow(r).createCell(13);
String tf = t1.getValueAt(i, 3).toString();
String timeF = tf.substring(0, 5);
cellTimeF.setCellValue(timeF);
cellTimeF.setCellStyle(csTime);
}
//fill zeit bis
if(!(t1.getValueAt(i, 6).toString().equals("Standby not activated"))){
XSSFCell cellTimeT = row.getCell(14, Row.RETURN_BLANK_AS_NULL);
cellTimeT = sheet.getRow(r).createCell(14);
String tt = t1.getValueAt(i, 4).toString();
String timeT = tt.substring(0, 5);
cellTimeT.setCellValue(timeT);
cellTimeT.setCellStyle(csTime);
}
//set crosses
XSSFCell cellStandbyP = row.getCell(7, Row.RETURN_BLANK_AS_NULL);
XSSFCell cellStandbyA = row.getCell(8, Row.RETURN_BLANK_AS_NULL);
XSSFCell cellSpecial = row.getCell(9, Row.RETURN_BLANK_AS_NULL);
if(t1.getValueAt(i, 6).equals("Standby not activated")){
cellStandbyP = sheet.getRow(r).createCell(7);
cellStandbyP.setCellStyle(csUname);
cellStandbyP.setCellValue("x");
}
if(t1.getValueAt(i, 6).equals("Planned work")){
cellSpecial = sheet.getRow(r).createCell(9);
cellSpecial.setCellStyle(csUname);
cellSpecial.setCellValue("x");
}
if(t1.getValueAt(i, 6).equals("Standby Activated")){
cellStandbyA = sheet.getRow(r).createCell(8);
cellStandbyA.setCellStyle(csUname);
cellStandbyA.setCellValue("x");
}
r++;
}
FileOutputStream fos = new FileOutputStream(path);
book.setForceFormulaRecalculation(true);
book.write(fos);
fos.flush();
fos.close();
}
}
in the picture u can see the columns, my programm is working with. I needed to cut out the other columns because of the german data security policy.. the columns are filled with strings
在你的代码部分之后：
...
String timeF = tf.substring(0, 5);
cellTimeF.setCellValue(timeF);
...
单元格内容将始终是字符串（文本）单元格内容。此内容函数 MIN 和 MAX 无法使用。这些功能需要数字内容。在 Excel 中，日期和时间也是仅格式化为日期时间的数字内容。默认设置 1 = 1 天 = 01/01/1900 00:00:00。 1 小时 = 1/24，1 分钟 = 1/24/60，1 秒 = 1/24/60/60。
如果String timeF是"HH:MM:SS"格式的字符串，那么DateUtil.convertTime可以用来将这个字符串转换成Excel宝贵的时间。
完整示例，显示哪些无效，哪些有效：
import java.io.FileOutputStream;
import org.apache.poi.ss.usermodel.*;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.apache.poi.ss.usermodel.DateUtil;
public class ExcelCalculateTimeValues {
public static void main(String[] args) throws Exception {
Workbook workbook = new XSSFWorkbook();
CreationHelper createHelper = workbook.getCreationHelper();
CellStyle styletime = workbook.createCellStyle();
styletime.setDataFormat(createHelper.createDataFormat().getFormat("hh:mm:ss"));
Sheet sheet = workbook.createSheet();
sheet.createRow(0).createCell(0).setCellValue("Start");
sheet.getRow(0).createCell(1).setCellValue("End");
sheet.getRow(0).createCell(3).setCellValue("Start");
sheet.getRow(0).createCell(4).setCellValue("End");
String[][] tableData = new String[][]{
{"12:34:00", "22:45:00"},
{"23:45:00", "01:34:00"},
{"08:01:00", "13:23:00"}
};
int r = 1;
for (String[] rowData : tableData) {
Row row = sheet.createRow(r++);
int c = 0;
for (String cellData : rowData) {
Cell cell = row.createCell(c);
cell.setCellValue(cellData); //this sets string cell data
cell.setCellStyle(styletime);
cell = row.createCell(3 + c++);
cell.setCellValue(DateUtil.convertTime(cellData)); //this sets datetime cell data
cell.setCellStyle(styletime);
}
}
sheet.createRow(r).createCell(0).setCellFormula("MIN(A2:A4)"); //cannot work because of string values in A2:A4
sheet.getRow(r).createCell(1).setCellFormula("MIN(B2:B4)"); //cannot work because of string values in B2:B4
sheet.getRow(r).createCell(3).setCellFormula("MIN(D2:D4)"); //will work
sheet.getRow(r).createCell(4).setCellFormula("MIN(E2:E4)"); //will work
workbook.setForceFormulaRecalculation(true);
workbook.write(new FileOutputStream("ExcelCalculateTimeValues.xlsx"));
workbook.close();
}
}
所以用你的代码：
...
cellTimeF.setCellValue(DateUtil.convertTime(timeF));
...
和
...
cellTimeT.setCellValue(DateUtil.convertTime(timeT));
...
应该可以。
我写了一个程序，将值写入 xlsx 文件。乍一看，它似乎可以正常工作。但是在我的 xlsx 文件中，我在另一个单元格中有一个公式，如果我手动输入值，它应该可以正常工作，但如果我的程序设置完全相同的值，它就不会像它应该的那样工作。如果我在我的程序写入一个值后手动打开文件并通过按处理条中的回车按钮确认写入的值，它会像它应该的那样工作。没有抛出异常。我的程序在单元格 N4 和 O4 中写入。这是我正在谈论的单元格的 Excel 公式：
=+MAX(;MIN(O4+(N4>O4);MAX(($N>$O);$O))-MAX(N4;$N))+MAX(;MIN(O4;MAX(($N>$O);$O))-MAX(;$N))(N4>O4)+MAX(;MIN(O4+(N4>O4);MIN(($N>$O);$O))-MAX(N4;))+MIN(O4;MIN(($N>$O);$O))(N4>O4)
N2 和 O2 包括预选值，这些值与 N4 和 O4 的值进行比较。 这是我的 Java 代码：
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.sql.Date;
import java.text.SimpleDateFormat;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.JCheckBox;
import javax.swing.JComboBox;
import javax.swing.JTable;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.CellStyle;
import org.apache.poi.ss.usermodel.CreationHelper;
import org.apache.poi.ss.usermodel.IndexedColors;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.xssf.usermodel.*;
public class XLSXEditor {
public XLSXEditor(){
}
public void searchWriter(String path, JTable t1) throws FileNotFoundException, IOException{
File excel = new File(path);
FileInputStream fis = new FileInputStream(excel);
XSSFWorkbook book = new XSSFWorkbook(fis);
XSSFSheet sheet = book.getSheetAt(1);
int r = getNonBlankRowCount(path);
String uname = "404";
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
java.util.Date parsed = null;
java.sql.Date date = null;
//Datum Style
CellStyle csDate = book.createCellStyle();
CreationHelper createHelper = book.getCreationHelper();
csDate.setDataFormat(createHelper.createDataFormat().getFormat("dd.mm.yyyy"));
csDate.setBorderBottom(XSSFCellStyle.BORDER_THIN);
csDate.setBorderTop(XSSFCellStyle.BORDER_THIN);
csDate.setBorderLeft(XSSFCellStyle.BORDER_THIN);
csDate.setBorderRight(XSSFCellStyle.BORDER_THIN);
csDate.setFillForegroundColor(IndexedColors.LIGHT_TURQUOISE.getIndex());
csDate.setFillPattern(CellStyle.SOLID_FOREGROUND);
//uname style
CellStyle csUname = book.createCellStyle();
csUname.setBorderBottom(XSSFCellStyle.BORDER_THIN);
csUname.setBorderTop(XSSFCellStyle.BORDER_THIN);
csUname.setBorderLeft(XSSFCellStyle.BORDER_THIN);
csUname.setBorderRight(XSSFCellStyle.BORDER_THIN);
csUname.setFillForegroundColor(IndexedColors.LIGHT_TURQUOISE.getIndex());
csUname.setFillPattern(CellStyle.SOLID_FOREGROUND);
//time style
CellStyle csTime = book.createCellStyle();
csTime.setBorderTop(XSSFCellStyle.BORDER_THIN);
csTime.setBorderBottom(XSSFCellStyle.BORDER_THIN);
csTime.setBorderLeft(XSSFCellStyle.BORDER_THIN);
csTime.setBorderRight(XSSFCellStyle.BORDER_THIN);
csTime.setFillForegroundColor(IndexedColors.LIGHT_TURQUOISE.getIndex());
csTime.setDataFormat(createHelper.createDataFormat().getFormat("hh:mm"));
csTime.setFillPattern(CellStyle.SOLID_FOREGROUND);
csTime.setVerticalAlignment(CellStyle.ALIGN_CENTER);
csTime.setAlignment(CellStyle.ALIGN_CENTER);
System.out.println(getFilledRows(t1));
for(int i=0; i<getFilledRows(t1); i++){
System.out.println(r);
XSSFRow row = sheet.getRow(r);
//fill username column in xlsx file
XSSFCell celluName = row.getCell(0, Row.RETURN_BLANK_AS_NULL);
if(celluName != null){
r++;
}
if(celluName == null){
celluName = sheet.getRow(r).createCell(0);
celluName.setCellStyle(csUname);
uname = t1.getValueAt(i, 0).toString().charAt(0) +""+ t1.getValueAt(i, 1);
celluName.setCellValue(uname);
r++;
}
r--;
//fill date column in xlsx file
XSSFCell cellDate = row.getCell(5, Row.RETURN_BLANK_AS_NULL);
System.out.println("r = " + r);
cellDate = sheet.getRow(r).createCell(5);
cellDate.setCellStyle(csDate);
try{
parsed = sdf.parse(t1.getValueAt(i, 2).toString());
}
catch(Exception e){
System.out.println(e);
}
date = new java.sql.Date(parsed.getTime());
cellDate.setCellValue(date);
//fill zeit von
if(!(t1.getValueAt(i, 6).toString().equals("Standby not activated"))){
XSSFCell cellTimeF = row.getCell(13, Row.RETURN_BLANK_AS_NULL);
cellTimeF = sheet.getRow(r).createCell(13);
String tf = t1.getValueAt(i, 3).toString();
String timeF = tf.substring(0, 5);
cellTimeF.setCellValue(timeF);
cellTimeF.setCellStyle(csTime);
}
//fill zeit bis
if(!(t1.getValueAt(i, 6).toString().equals("Standby not activated"))){
XSSFCell cellTimeT = row.getCell(14, Row.RETURN_BLANK_AS_NULL);
cellTimeT = sheet.getRow(r).createCell(14);
String tt = t1.getValueAt(i, 4).toString();
String timeT = tt.substring(0, 5);
cellTimeT.setCellValue(timeT);
cellTimeT.setCellStyle(csTime);
}
//set crosses
XSSFCell cellStandbyP = row.getCell(7, Row.RETURN_BLANK_AS_NULL);
XSSFCell cellStandbyA = row.getCell(8, Row.RETURN_BLANK_AS_NULL);
XSSFCell cellSpecial = row.getCell(9, Row.RETURN_BLANK_AS_NULL);
if(t1.getValueAt(i, 6).equals("Standby not activated")){
cellStandbyP = sheet.getRow(r).createCell(7);
cellStandbyP.setCellStyle(csUname);
cellStandbyP.setCellValue("x");
}
if(t1.getValueAt(i, 6).equals("Planned work")){
cellSpecial = sheet.getRow(r).createCell(9);
cellSpecial.setCellStyle(csUname);
cellSpecial.setCellValue("x");
}
if(t1.getValueAt(i, 6).equals("Standby Activated")){
cellStandbyA = sheet.getRow(r).createCell(8);
cellStandbyA.setCellStyle(csUname);
cellStandbyA.setCellValue("x");
}
r++;
}
FileOutputStream fos = new FileOutputStream(path);
book.setForceFormulaRecalculation(true);
book.write(fos);
fos.flush();
fos.close();
}
}
in the picture u can see the columns, my programm is working with. I needed to cut out the other columns because of the german data security policy.. the columns are filled with strings
在你的代码部分之后：
...
String timeF = tf.substring(0, 5);
cellTimeF.setCellValue(timeF);
...
单元格内容将始终是字符串（文本）单元格内容。此内容函数 MIN 和 MAX 无法使用。这些功能需要数字内容。在 Excel 中，日期和时间也是仅格式化为日期时间的数字内容。默认设置 1 = 1 天 = 01/01/1900 00:00:00。 1 小时 = 1/24，1 分钟 = 1/24/60，1 秒 = 1/24/60/60。
如果String timeF是"HH:MM:SS"格式的字符串，那么DateUtil.convertTime可以用来将这个字符串转换成Excel宝贵的时间。
完整示例，显示哪些无效，哪些有效：
import java.io.FileOutputStream;
import org.apache.poi.ss.usermodel.*;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.apache.poi.ss.usermodel.DateUtil;
public class ExcelCalculateTimeValues {
public static void main(String[] args) throws Exception {
Workbook workbook = new XSSFWorkbook();
CreationHelper createHelper = workbook.getCreationHelper();
CellStyle styletime = workbook.createCellStyle();
styletime.setDataFormat(createHelper.createDataFormat().getFormat("hh:mm:ss"));
Sheet sheet = workbook.createSheet();
sheet.createRow(0).createCell(0).setCellValue("Start");
sheet.getRow(0).createCell(1).setCellValue("End");
sheet.getRow(0).createCell(3).setCellValue("Start");
sheet.getRow(0).createCell(4).setCellValue("End");
String[][] tableData = new String[][]{
{"12:34:00", "22:45:00"},
{"23:45:00", "01:34:00"},
{"08:01:00", "13:23:00"}
};
int r = 1;
for (String[] rowData : tableData) {
Row row = sheet.createRow(r++);
int c = 0;
for (String cellData : rowData) {
Cell cell = row.createCell(c);
cell.setCellValue(cellData); //this sets string cell data
cell.setCellStyle(styletime);
cell = row.createCell(3 + c++);
cell.setCellValue(DateUtil.convertTime(cellData)); //this sets datetime cell data
cell.setCellStyle(styletime);
}
}
sheet.createRow(r).createCell(0).setCellFormula("MIN(A2:A4)"); //cannot work because of string values in A2:A4
sheet.getRow(r).createCell(1).setCellFormula("MIN(B2:B4)"); //cannot work because of string values in B2:B4
sheet.getRow(r).createCell(3).setCellFormula("MIN(D2:D4)"); //will work
sheet.getRow(r).createCell(4).setCellFormula("MIN(E2:E4)"); //will work
workbook.setForceFormulaRecalculation(true);
workbook.write(new FileOutputStream("ExcelCalculateTimeValues.xlsx"));
workbook.close();
}
}
所以用你的代码：
...
cellTimeF.setCellValue(DateUtil.convertTime(timeF));
...
和
...
cellTimeT.setCellValue(DateUtil.convertTime(timeT));
...
应该可以。