java - 如何将XSSF颜色转换为Java.awt.color格式。因为XSSF颜色无法进行比较

我已经很清楚地发布了代码。
我想在excel中获取单元格的颜色，然后发布excel文件，只有绿色和黄色两种颜色。
如果我使用XSSFColor，则打印输出为XSSFColor @ 8b21b8fa和XSSFColor @ dfcdb1。因此，无论是绿色还是黄色，我都无法进行比较。
我希望将黄色打印为1，如果绿色打印为0。谢谢你的帮助！！！

for(Row row : sheet)
{
    for(Cell cell : row)
    {
        switch(formulaEvaluator.evaluateInCell(cell).getCellType())
        {
            case Cell.CELL_TYPE_BLANK:
               Color cellColor= cell.getCellStyle().getFillForegroundColorColor();
               if(cellColor==Color.GREEN)
               {
                   System.out.print(0+",");
               }
               else if(cellColor==Color.YELLOW)
               {
                   System.out.print(1+",");
               }
        }
    }
    System.out.println();
}

this is my excel file shows a madarin character

最佳答案

虽然可以从XSSFColor创建java.awt.Color，但没有简单的可能性从java.awt.Color获取XSSFColor。

我们可以将单元格中ARGBHex的XSSFColor与从ARGBHex中新创建的XSSFColor的java.awt.Color进行比较。

例：

import java.io.*;

import org.apache.poi.ss.usermodel.*;
import org.apache.poi.openxml4j.exceptions.InvalidFormatException;

import org.apache.poi.xssf.usermodel.XSSFColor;

class ColorTest {

 public static void main(String[] args) {
  try {

   InputStream inp = new FileInputStream("ColorTest.xlsx");
   Workbook wb = WorkbookFactory.create(inp);

   Sheet sheet = wb.getSheetAt(0);

   for (Row row : sheet) {

    for(Cell cell : row) {

     switch(cell.getCellType()) {
      case Cell.CELL_TYPE_BLANK:
       Color cellColor= cell.getCellStyle().getFillForegroundColorColor();
       if (cellColor instanceof XSSFColor) {
        XSSFColor xssfCellColor = (XSSFColor) cellColor;
        if(xssfCellColor.getARGBHex().equals(new XSSFColor(java.awt.Color.GREEN).getARGBHex())) {
         System.out.print(0+",");
        } else if(xssfCellColor.getARGBHex().equals(new XSSFColor(java.awt.Color.YELLOW).getARGBHex())) {
         System.out.print(1+",");
        }
       }
      break;

     }
    }
   }
   System.out.println();
  } catch (InvalidFormatException ifex) {
  } catch (FileNotFoundException fnfex) {
  } catch (IOException ioex) {
  }
 }
}

但是在提供的图片中，RGB 00FF00的绿色似乎并不是真正的绿色，而是混浊的绿色。因此，与java.awt.Color.GREEN的比较将不匹配，因为java.awt.Color.GREEN正是RGB 00FF00。

XSSF和HSSF的示例：

import java.io.*;

import org.apache.poi.ss.usermodel.*;
import org.apache.poi.openxml4j.exceptions.InvalidFormatException;

import org.apache.poi.xssf.usermodel.XSSFColor;
import org.apache.poi.hssf.util.HSSFColor;

class ColorTest {

 public static void main(String[] args) {
  try {

   //InputStream inp = new FileInputStream("ColorTest.xlsx");
   InputStream inp = new FileInputStream("ColorTest.xls");

   Workbook wb = WorkbookFactory.create(inp);

   Sheet sheet = wb.getSheetAt(0);

   for (Row row : sheet) {

    for(Cell cell : row) {

     switch(cell.getCellType()) {
      case Cell.CELL_TYPE_BLANK:
       Color cellColor= cell.getCellStyle().getFillForegroundColorColor();
       if (cellColor instanceof XSSFColor) {
        XSSFColor xssfCellColor = (XSSFColor) cellColor;

        System.out.println(xssfCellColor.getARGBHex());

        if(xssfCellColor.getARGBHex().equals(new XSSFColor(java.awt.Color.GREEN).getARGBHex())) {
         System.out.println(cell.getAddress() + " is green");
        } else if(xssfCellColor.getARGBHex().equals(new XSSFColor(java.awt.Color.YELLOW).getARGBHex())) {
         System.out.println(cell.getAddress() + " is yellow");
        }
       } else if (cellColor instanceof HSSFColor) {
        HSSFColor hssfCellColor = (HSSFColor) cellColor;

        System.out.println(hssfCellColor.getHexString());

        if(hssfCellColor.getHexString().equals("0:FFFF:0")) {
         System.out.println(cell.getAddress() + " is green");
        } else if(hssfCellColor.getHexString().equals("FFFF:FFFF:0")) {
         System.out.println(cell.getAddress() + " is yellow");
        }
       }
      break;

     }

    }
   }

  } catch (InvalidFormatException ifex) {
  } catch (FileNotFoundException fnfex) {
  } catch (IOException ioex) {
  }
 }
}