我想使用 apache-poi 和自定义约束来运行这个自定义公式
=OR(IF(ISERROR(FIND(".",A1)),LEN(A1)>0,LEN(MID(A1,FIND(".",A1)+1,25))<3))
那么知道如何做到这一点吗？代码如下...
公共(public)类 PoiWriteExcelFile {
public static void main(String[] args) {
try {
FileOutputStream fileOut = new FileOutputStream("c:/poi-test.xls");
HSSFWorkbook workbook = new HSSFWorkbook();
HSSFSheet worksheet = workbook.createSheet("POI Worksheet");
HSSFCellStyle style = workbook.createCellStyle();
HSSFDataFormat df = workbook.createDataFormat();
CellRangeAddressList addressList = new CellRangeAddressList(0, 4, 3, 3);
DataValidationHelper helper = worksheet.getDataValidationHelper();
// helper.create
helper.createFormulaListConstraint("OR(IF(ISERROR(FIND('.',A1)),LEN(A1)>0,LEN(MID(A1,FIND('.',A1)+1,25))<3))");
DVConstraint dvConstraint = DVConstraint.createNumericConstraint(ValidationType.DECIMAL, DVConstraint.OperatorType.BETWEEN, "1.00", "1000000000000.00");
dvConstraint.createCustomFormulaConstraint("OR(IF(ISERROR(FIND('.',A1)),LEN(A1)>0,LEN(MID(A1,FIND('.',A1)+1,25))<3))");
DataValidation dataValidation = new HSSFDataValidation(addressList,
dvConstraint);
dataValidation.setSuppressDropDownArrow(false);
worksheet.addValidationData(dataValidation);
style.setLocked(true);
//style.setDataFormat(workbook.createDataFormat().getFormat("0.00"));
style.setDataFormat(df.getFormat("0.000"));
// index from 0,0... cell A1 is cell(0,0)
List val = new ArrayList();
val.add("srNo");
val.add("name");
val.add("qty");
val.add("price");
val.add("total");
val.add(1);
val.add("a");
val.add(100);
val.add(0);
val.add(0);
val.add(2);
val.add("b");
val.add(1000);
val.add(0);
val.add(0);
val.add(3);
val.add("c");
val.add(10000);
val.add(0);
val.add(0);
int k = 0;
int count = 1;
int countt = 1;
String formula = "";
for (int i = 0; i < 4; i++) {
HSSFRow row1 = worksheet.createRow(i);
for (int j = 0; j < 5; j++) {
HSSFCell cellA1 = row1.createCell(j);
try {
//cellA1.setCellValue((Integer) val.get(j + k));
cellA1.setCellStyle(style);
} catch (Exception e) {
cellA1.setCellStyle(style);
}
if (j == 4 && i != 0) {
count++;
formula = "C" + count + "*D" + (count);
cellA1.setCellFormula(formula);
}
if (j == 3 && i != 0) {
countt++;
formula = "ROUNDUP(D"+countt+",3)";
cellA1.setCellStyle(style);
cellA1.setCellFormula(formula);
}
}
k = k + 5;
}
//worksheet.protectSheet("jogi");
workbook.write(fileOut);
fileOut.flush();
fileOut.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
}
最佳答案
使用此方法org.apache.poi.hssf.usermodel.HSSFCell.setCellValue(String)。您的单元格类型应为 org.apache.poi.ss.usermodel.Cell.CELL_TYPE_FORMULA。
关于java - 具有自定义约束的 apache poi，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/10698754/