Excel表单格式化使用Apache POI

Question

我正在从使用apache POI库的java代码创建Excel报表。格式化Excel单元格时遇到问题。请在下面找到一段代码。

XSSFWorkbook workbook = new XSSFWorkbook(); 
    XSSFSheet sheet = workbook.createSheet("coverageData"); 
    int rownum = 0,cellnum=0; 
    Row row1 = sheet.createRow(rownum++); 
    Cell cell10 = row1.createCell(cellnum++); 
    cell10.setCellValue("cell data"); 
    XSSFCellStyle row1style = (XSSFCellStyle)cell10.getCellStyle(); 
    XSSFColor grayColor = new XSSFColor(Color.DARK_GRAY); 
    row1style.setFillBackgroundColor(grayColor); 
    cell10.setCellStyle(row1style); 
    try   
    {    
     //Write the workbook in file system 
     FileOutputStream out = new FileOutputStream(new File("P:\\automation\\Spreadsheet.xlsx")); 
     workbook.write(out); 
     out.close(); 
     System.out.println("Spreadsheet.xlsx written successfully on disk."); 
    } 
    catch (Exception e) 
    { 
     e.printStackTrace(); 
    } 

这里的问题是我设置cell10风格的代码最后一行，但它不是由程序创建的Excel工作表中得到的影响。

在此先感谢。

Answer 1

您需要设置的颜色是这样的：

final XSSFCellStyle description = (XSSFCellStyle) workbook.createCellStyle(); 
description.setFillForegroundColor(yourColor); 
description.setFillPattern(FillPatternType.SOLID_FOREGROUND); 

这一点，你需要填充图案

Answer 2

试试吧，波纹管的工作对我罚款：

import java.io.File; 
import java.io.FileOutputStream; 
import org.apache.poi.ss.usermodel.Cell; 
import org.apache.poi.ss.usermodel.CellStyle; 
import org.apache.poi.ss.usermodel.IndexedColors; 
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; 

public class TestClass { 
    public static void main(String[] args){ 
     Workbook wb = new XSSFWorkbook(); 
     Sheet sheet = wb.createSheet("coverageData"); 
     int rownum = 0,cellnum=0; 
     Row row1 = sheet.createRow((short)rownum++); 
     //Set Color style start 
     CellStyle row1style = wb.createCellStyle(); 
     row1style.setFillBackgroundColor(IndexedColors.LIGHT_GREEN.getIndex()); 
     row1style.setFillPattern(CellStyle.BIG_SPOTS); 
     //Set Color style end 
     Cell cell10 = row1.createCell((short)cellnum++); 
     cell10.setCellStyle(row1style); 
     cell10.setCellValue("cell data"); 
     try{    
      //Write the workbook in file system 
      FileOutputStream out = new FileOutputStream(new File("Spreadsheet.xlsx")); 
      wb.write(out); 
      out.close(); 
      System.out.println("Spreadsheet.xlsx written successfully on disk."); 
     } catch (Exception e) { e.printStackTrace(); } 
    } 
}