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Merge pull request #8463 from wugangca/BAEL-3656

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BAEL-3656 Read Numeric Strings in Excel Cells as a String with Apache…
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Eric Martin 2020-01-08 21:24:05 -06:00 committed by GitHub
commit 537d91e6d9
3 changed files with 107 additions and 0 deletions
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apache-poi/src/main/java/com/baeldung/poi/excel/ExcelCellFormatter.java Normal file
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package com.baeldung.poi.excel;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.DataFormatter;
import org.apache.poi.ss.usermodel.FormulaEvaluator;
import org.apache.poi.ss.usermodel.Workbook;
public class ExcelCellFormatter {
public String getCellStringValue(Cell cell) {
DataFormatter formatter = new DataFormatter();
return formatter.formatCellValue(cell);
}
public String getCellStringValueWithFormula(Cell cell, Workbook workbook) {
DataFormatter formatter = new DataFormatter();
FormulaEvaluator evaluator = workbook.getCreationHelper().createFormulaEvaluator();
return formatter.formatCellValue(cell, evaluator);
}
}

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apache-poi/src/main/resources/ExcelCellFormatterTest.xlsx Normal file
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apache-poi/src/test/java/com/baeldung/poi/excel/ExcelCellFormatterUnitTest.java Normal file
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package com.baeldung.poi.excel;
import static org.junit.Assert.assertEquals;
import java.io.IOException;
import java.net.URISyntaxException;
import java.nio.file.Paths;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.junit.Before;
import org.junit.Test;
public class ExcelCellFormatterUnitTest {
private static final String FILE_NAME = "ExcelCellFormatterTest.xlsx";
private static final int STRING_CELL_INDEX = 0;
private static final int BOOLEAN_CELL_INDEX = 1;
private static final int RAW_NUMERIC_CELL_INDEX = 2;
private static final int FORMATTED_NUMERIC_CELL_INDEX = 3;
private static final int FORMULA_CELL_INDEX = 4;
private String fileLocation;
@Before
public void setup() throws IOException, URISyntaxException {
fileLocation = Paths.get(ClassLoader.getSystemResource(FILE_NAME).toURI()).toString();
}
@Test
public void givenStringCell_whenGetCellStringValue_thenReturnStringValue() throws IOException {
Workbook workbook = new XSSFWorkbook(fileLocation);
Sheet sheet = workbook.getSheetAt(0);
Row row = sheet.getRow(0);
ExcelCellFormatter formatter = new ExcelCellFormatter();
assertEquals("String Test", formatter.getCellStringValue(row.getCell(STRING_CELL_INDEX)));
workbook.close();
}
@Test
public void givenBooleanCell_whenGetCellStringValue_thenReturnBooleanStringValue() throws IOException {
Workbook workbook = new XSSFWorkbook(fileLocation);
Sheet sheet = workbook.getSheetAt(0);
Row row = sheet.getRow(0);
ExcelCellFormatter formatter = new ExcelCellFormatter();
assertEquals("TRUE", formatter.getCellStringValue(row.getCell(BOOLEAN_CELL_INDEX)));
workbook.close();
}
@Test
public void givenNumericCell_whenGetCellStringValue_thenReturnNumericStringValue() throws IOException {
Workbook workbook = new XSSFWorkbook(fileLocation);
Sheet sheet = workbook.getSheetAt(0);
Row row = sheet.getRow(0);
ExcelCellFormatter formatter = new ExcelCellFormatter();
assertEquals("1.234", formatter.getCellStringValue(row.getCell(RAW_NUMERIC_CELL_INDEX)));
assertEquals("1.23", formatter.getCellStringValue(row.getCell(FORMATTED_NUMERIC_CELL_INDEX)));
workbook.close();
}
@Test
public void givenFormualCell_whenGetCellStringValue_thenReturnOriginalFormulaString() throws IOException {
Workbook workbook = new XSSFWorkbook(fileLocation);
Sheet sheet = workbook.getSheetAt(0);
Row row = sheet.getRow(0);
ExcelCellFormatter formatter = new ExcelCellFormatter();
assertEquals("SUM(1+2)", formatter.getCellStringValue(row.getCell(FORMULA_CELL_INDEX)));
workbook.close();
}
@Test
public void givenFormualCell_whenGetCellStringValueForFormula_thenReturnOriginalFormulatring() throws IOException {
Workbook workbook = new XSSFWorkbook(fileLocation);
Sheet sheet = workbook.getSheetAt(0);
Row row = sheet.getRow(0);
ExcelCellFormatter formatter = new ExcelCellFormatter();
assertEquals("3", formatter.getCellStringValueWithFormula(row.getCell(FORMULA_CELL_INDEX), workbook));
workbook.close();
}
}