Java POI excel设置单元格数类型

更多数据类型从 _formats 里面发现

private static final String[] _formats = new String[]{"General", "0", "0.00", "#,##0", "#,##0.00", "\"$\"#,##0_);(\"$\"#,##0)", "\"$\"#,##0_);[Red](\"$\"#,##0)", "\"$\"#,##0.00_);(\"$\"#,##0.00)", "\"$\"#,##0.00_);[Red](\"$\"#,##0.00)", "0%", "0.00%", "0.00E+00", "# ?/?", "# ??/??", "m/d/yy", "d-mmm-yy", "d-mmm", "mmm-yy", "h:mm AM/PM", "h:mm:ss AM/PM", "h:mm", "h:mm:ss", "m/d/yy h:mm", "reserved-0x17", "reserved-0x18", "reserved-0x19", "reserved-0x1A", "reserved-0x1B", "reserved-0x1C", "reserved-0x1D", "reserved-0x1E", "reserved-0x1F", "reserved-0x20", "reserved-0x21", "reserved-0x22", "reserved-0x23", "reserved-0x24", "#,##0_);(#,##0)", "#,##0_);[Red](#,##0)", "#,##0.00_);(#,##0.00)", "#,##0.00_);[Red](#,##0.00)", "_(* #,##0_);_(* (#,##0);_(* \"-\"_);_(@_)", "_(\"$\"* #,##0_);_(\"$\"* (#,##0);_(\"$\"* \"-\"_);_(@_)", "_(* #,##0.00_);_(* (#,##0.00);_(* \"-\"??_);_(@_)", "_(\"$\"* #,##0.00_);_(\"$\"* (#,##0.00);_(\"$\"* \"-\"??_);_(@_)", "mm:ss", "[h]:mm:ss", "mm:ss.0", "##0.0E+0", "@"};

    /**
     * 设置单元格数据类型
     */
    public static void setExcelCellDataFormat() throws IOException {
        XSSFWorkbook workbook = new XSSFWorkbook();
        XSSFSheet sheet = workbook.createSheet("单元格数据类型");

        XSSFRow row1 = sheet.createRow(0);
        // 单元格样式
        XSSFCellStyle cellStyle = workbook.createCellStyle();
        // 单元格数据格式
        XSSFDataFormat cellDataFormat = workbook.createDataFormat();
        // 来源：org.apache.poi.ss.usermodel.BuiltinFormats
        // private static final String[] _formats = new String[]{"General", "0", "0.00", "#,##0", "#,##0.00", "\"$\"#,##0_);(\"$\"#,##0)", "\"$\"#,##0_);[Red](\"$\"#,##0)", "\"$\"#,##0.00_);(\"$\"#,##0.00)", "\"$\"#,##0.00_);[Red](\"$\"#,##0.00)", "0%", "0.00%", "0.00E+00", "# ?/?", "# ??/??", "m/d/yy", "d-mmm-yy", "d-mmm", "mmm-yy", "h:mm AM/PM", "h:mm:ss AM/PM", "h:mm", "h:mm:ss", "m/d/yy h:mm", "reserved-0x17", "reserved-0x18", "reserved-0x19", "reserved-0x1A", "reserved-0x1B", "reserved-0x1C", "reserved-0x1D", "reserved-0x1E", "reserved-0x1F", "reserved-0x20", "reserved-0x21", "reserved-0x22", "reserved-0x23", "reserved-0x24", "#,##0_);(#,##0)", "#,##0_);[Red](#,##0)", "#,##0.00_);(#,##0.00)", "#,##0.00_);[Red](#,##0.00)", "_(* #,##0_);_(* (#,##0);_(* \"-\"_);_(@_)", "_(\"$\"* #,##0_);_(\"$\"* (#,##0);_(\"$\"* \"-\"_);_(@_)", "_(* #,##0.00_);_(* (#,##0.00);_(* \"-\"??_);_(@_)", "_(\"$\"* #,##0.00_);_(\"$\"* (#,##0.00);_(\"$\"* \"-\"??_);_(@_)", "mm:ss", "[h]:mm:ss", "mm:ss.0", "##0.0E+0", "@"};

        // 单元格百分比：从_formats里面选择一个包含的单元格数据类型
        cellStyle.setDataFormat(cellDataFormat.getFormat("0.00%"));
        XSSFCell cell1 = row1.createCell(0);
        cell1.setCellStyle(cellStyle);
        // 需要注意一下，poi已经不建议使用setCellType设置数据类型了，可以直接通过重载的setCellValue判断当前单元格是什么数据类型
        // cell1.setCellType(CellType.BOOLEAN);
        cell1.setCellValue(0.06);

        FileOutputStream outputStream = new FileOutputStream("D:\\temp\\Excel单元格数据类型.xlsx");
        workbook.write(outputStream);
        outputStream.flush();

        workbook.close();
        outputStream.close();
    }

注意可能会出现不兼容的问题，但是不影响导出

参考链接：https://blog.csdn.net/z_play_du/article/details/34831953