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package
a;
import
java.io.FileInputStream;
import
java.io.IOException;
import
java.io.InputStream;
import
java.text.DecimalFormat;
import
org.apache.commons.lang3.StringUtils;
import
org.apache.poi.hssf.usermodel.HSSFDateUtil;
import
org.apache.poi.hssf.usermodel.HSSFWorkbook;
import
org.apache.poi.ss.usermodel.Cell;
import
org.apache.poi.ss.usermodel.FormulaEvaluator;
import
org.apache.poi.ss.usermodel.Row;
import
org.apache.poi.ss.usermodel.Sheet;
import
landprice.util.DateUtil;
public
class
TestReadFormula {
private
static
FormulaEvaluator evaluator;
public
static
void
main(String[] args)
throws
IOException {
InputStream is=
new
FileInputStream(
"E:/temp/tempfile/1.xls"
);
HSSFWorkbook wb=
new
HSSFWorkbook(is);
Sheet sheet=wb.getSheetAt(
0
);
evaluator=wb.getCreationHelper().createFormulaEvaluator();
for
(
int
i =
0
; i <
1
; i++) {
Row row=sheet.getRow(i);
for (Cell cell : row) {
System.out.println(getCellValueByCell(cell));
}
}
is.close();
}
//獲取單元格各種型值，返回字符串類型
private
static
String getCellValueByCell(Cell cell) {
//判斷是否爲null或空串
if
(cell==
null
|| cell.toString().trim().equals(
""
)) {
return
""
;
}
String cellValue =
""
;
int
cellType=cell.getCellType();
if
(cellType==Cell.CELL_TYPE_FORMULA){
//表達式類型
cellType=evaluator.evaluate(cell).getCellType();
}
switch
(cellType) {
case
Cell.CELL_TYPE_STRING:
//字符串類型
cellValue= cell.getStringCellValue().trim();
cellValue=StringUtils.isEmpty(cellValue) ?
""
: cellValue;
break
;
case
Cell.CELL_TYPE_BOOLEAN:
//布爾類型
cellValue = String.valueOf(cell.getBooleanCellValue());
break
;
case
Cell.CELL_TYPE_NUMERIC:
//數值類型
if
(HSSFDateUtil.isCellDateFormatted(cell)) {
//判斷日期類型
cellValue = DateUtil.formatDateByFormat(cell.getDateCellValue(),
"yyyy-MM-dd"
);
}
else
{
//否
cellValue =
new
DecimalFormat(
"#.######"
).format(cell.getNumericCellValue());
}
break
;
default
:
//其它類型，取空串吧
cellValue =
""
;
break
;
}
return
cellValue;
}
}
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