給poi升級后，應該是版本沖突了。程序里出現了很多標紅的地方。
舊版：
cellStyle.setAlignment(HSSFCellStyle.ALIGN_CENTER); cellStyle.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER); cellStyle.setBorderBottom(HSSFCellStyle.BORDER_THIN); cellStyle.setBottomBorderColor(HSSFColor.BLACK.index); cellStyle.setBorderLeft(HSSFCellStyle.BORDER_THIN); cellStyle.setLeftBorderColor(HSSFColor.BLACK.index); cellStyle.setBorderRight(HSSFCellStyle.BORDER_THIN);
新版:
cellStyle.setAlignment(HorizontalAlignment.CENTER); cellStyle.setVerticalAlignment(VerticalAlignment.CENTER); cellStyle.setBorderBottom(BorderStyle.THIN); cellStyle.setBottomBorderColor(HSSFColor.HSSFColorPredefined.BLACK.getIndex()); cellStyle.setBorderLeft(BorderStyle.THIN); cellStyle.setLeftBorderColor(HSSFColor.HSSFColorPredefined.BLACK.getIndex()); cellStyle.setBorderRight(BorderStyle.THIN); cellStyle.setRightBorderColor(HSSFColor.HSSFColorPredefined.BLACK.getIndex()); cellStyle.setBorderTop(BorderStyle.THIN); cellStyle.setTopBorderColor(HSSFColor.HSSFColorPredefined.BLACK.getIndex());
原文鏈接：https://www.codeleading.com/article/84123304192/