apache POI MS Office Excel无法打开字体颜色设置Excel文件

我正面临apache poi的一个奇怪的问题

我正在使用Apache poi 3.17创build一个Excel文件。 如果我设置字体颜色，那么生成的excel文件不是用最新的MS Office Excel查看器打开的，但是它随Libre Office和Mac OS Numbers应用程序打开。

但是，如果我将'urlFont.setColor（（short）Color.BLACK.getRGB（））'行注释掉，那么生成的文件将以Office Excel查看器（以及其他应用程序）打开。

有没有人遇到过这个问题？

import org.apache.poi.common.usermodel.HyperlinkType; import org.apache.poi.ss.usermodel.FillPatternType; import org.apache.poi.ss.usermodel.Font; import org.apache.poi.ss.usermodel.Hyperlink; import org.apache.poi.xssf.usermodel.*; import java.awt.*; import java.io.ByteArrayOutputStream; import java.io.FileOutputStream; import java.io.IOException; public class WriteExcelBasic { public static void main(String[] args) throws IOException { String excelFileName = "/Users/home/Test3.xlsx"; FileOutputStream fos = new FileOutputStream(excelFileName); XSSFWorkbook wb = new XSSFWorkbook(); XSSFCellStyle style = wb.createCellStyle(); XSSFSheet sheet = wb.createSheet("sheet"); Font urlFont = wb.createFont(); urlFont.setFontHeight((short)(9*20)); // urlFont.setUnderline((byte)10); //urlFont.setBold(true); urlFont.setFontName("Arial"); urlFont.setItalic(true); urlFont.setColor((short)Color.BLACK.getRGB());// commenting out this line will work style.setFont(urlFont); for (int r = 0; r < 3; r++) { XSSFRow row = sheet.createRow(r); for (int c = 0; c < 3; c++) { XSSFCell cell = row.createCell(c); Hyperlink link = wb.getCreationHelper().createHyperlink(HyperlinkType.URL); String ss = "http://news.google.com/news/headlines?ned=us&hl=en"; //String ss = "swasdqde"; link.setAddress(ss); cell.setHyperlink(link); cell.setCellValue(ss); if(r == 1) { System.out.println("In yellow"); style.setFillPattern(FillPatternType.SOLID_FOREGROUND); style.setFillForegroundColor(new XSSFColor(Color.YELLOW)); } else { System.out.println("In red"); style.setFillPattern(FillPatternType.SOLID_FOREGROUND); style.setFillForegroundColor(new XSSFColor(Color.RED)); } cell.setCellStyle(style); } } try (ByteArrayOutputStream baos = new ByteArrayOutputStream()) { wb.write(baos); byte[] myByteArray = baos.toByteArray(); fos.write(myByteArray); fos.flush(); } finally { wb.close(); fos.close(); } } } 

Answer 1

我将字体更改为XSFFFont，并在该字体中使用XSSFCOLOR，它正在工作。

 import org.apache.poi.common.usermodel.HyperlinkType; import org.apache.poi.ss.usermodel.FillPatternType; import org.apache.poi.ss.usermodel.Font; import org.apache.poi.ss.usermodel.Hyperlink; import org.apache.poi.xssf.usermodel.*; import java.awt.*; import java.io.ByteArrayOutputStream; import java.io.FileOutputStream; import java.io.IOException; public class WriteExcelBasic { public static void main(String[] args) throws IOException { String excelFileName = "/Users/home/Test3.xlsx"; FileOutputStream fos = new FileOutputStream(excelFileName); XSSFWorkbook wb = new XSSFWorkbook(); XSSFCellStyle style = wb.createCellStyle(); XSSFSheet sheet = wb.createSheet("sheet"); XSSFFont urlFont = wb.createFont();// changed lines urlFont.setFontHeight((short)(9*20)); // urlFont.setUnderline((byte)10); //urlFont.setBold(true); urlFont.setFontName("Arial"); urlFont.setItalic(true); urlFont.setColor(new XSSFColor(Color.BLUE)); // changed lines style.setFont(urlFont); for (int r = 0; r < 3; r++) { XSSFRow row = sheet.createRow(r); for (int c = 0; c < 3; c++) { XSSFCell cell = row.createCell(c); Hyperlink link = wb.getCreationHelper().createHyperlink(HyperlinkType.URL); String ss = "http://news.google.com/news/headlines?ned=us&hl=en"; //String ss = "swasdqde"; link.setAddress(ss); cell.setHyperlink(link); cell.setCellValue(ss); if(r == 1) { System.out.println("In yellow"); style.setFillPattern(FillPatternType.SOLID_FOREGROUND); style.setFillForegroundColor(new XSSFColor(Color.YELLOW)); } else { System.out.println("In red"); style.setFillPattern(FillPatternType.SOLID_FOREGROUND); style.setFillForegroundColor(new XSSFColor(Color.RED)); } cell.setCellStyle(style); } } try (ByteArrayOutputStream baos = new ByteArrayOutputStream()) { wb.write(baos); byte[] myByteArray = baos.toByteArray(); fos.write(myByteArray); fos.flush(); } finally { wb.close(); fos.close(); } } } 

Answer 2

虽然已经给出了XSSF的正确方法，但也存在为什么Font.setColor没有按预期工作的问题。

对此的答案是，对于Font.setColor(short color) ， short color 不是 RGB颜色值，而是IndexedColor调色板中的索引。 这是从HSSF和BIFF文件格式的旧办法。 在调色板中有64个IndexedColors ，其中8个（32到39）可用于自定义颜色。 XSSF也可以使用这个调色板，但不能存储自定义颜色。 而且，如果文件处于Office Open XML格式（ XSSF ）并且给定索引大于220，则至less使用Excel 2007会引发错误XSSF Excel 2016在此处更宽容。 那就是为什么在使用RGB值的时候出错，可能都大于220 ;-)。

下面的例子显示了在Enum IndexedColors和HSSFPalette中使用Font.setColor(short color)及其等价物来存储自定义颜色。

 import java.io.FileOutputStream; import org.apache.poi.ss.usermodel.*; import org.apache.poi.xssf.usermodel.*; import org.apache.poi.hssf.usermodel.*; public class CreateExcelFontColor { public static void main(String[] args) throws Exception { //Workbook workbook = new XSSFWorkbook(); Workbook workbook = new HSSFWorkbook(); Sheet sheet = workbook.createSheet(); for (int c = 0; c < 221; c++) { //color index from 0 to 220 //greater than 220 leads to an error while opening in Excel XSSF CellStyle style = workbook.createCellStyle(); Font font = workbook.createFont(); font.setColor((short)c); style.setFont(font); Row row = sheet.createRow(c); Cell cell = row.createCell(0); cell.setCellValue("Font color index " + c); cell.setCellStyle(style); IndexedColors indexedcolor = null; try { indexedcolor = IndexedColors.fromInt(c); } catch (IllegalArgumentException ex) {} cell = row.createCell(1); if (indexedcolor != null) { cell.setCellValue("IndexedColor." + indexedcolor.toString()); } else { cell.setCellValue("No IndexedColor"); } cell.setCellStyle(style); if (workbook instanceof HSSFWorkbook) { if (indexedcolor == null) { HSSFPalette palette = ((HSSFWorkbook)workbook).getCustomPalette(); byte[] rgb = new byte[3]; new java.util.Random().nextBytes(rgb); palette.setColorAtIndex((short)c, rgb[0], rgb[1], rgb[2]); cell = row.createCell(2); cell.setCellValue("New font color index " + c + " RGB=" + String.format("%02X", rgb[0]) + String.format("%02X", rgb[1]) + String.format("%02X", rgb[2])); cell.setCellStyle(style); } } } if (workbook instanceof HSSFWorkbook) { workbook.write(new FileOutputStream("CreateExcelFontColor.xls")); } else if (workbook instanceof XSSFWorkbook) { workbook.write(new FileOutputStream("CreateExcelFontColor.xlsx")); } workbook.close(); } }