public static void resetCellMaxTextLength() {
    SpreadsheetVersion excel2007 = SpreadsheetVersion.EXCEL2007;
    if (Integer.MAX_VALUE != excel2007.getMaxTextLength()) {
        Field field;
        try {
            field = excel2007.getClass().getDeclaredField("_maxTextLength");
            field.setAccessible(true);
            field.set(excel2007,Integer.MAX_VALUE);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

ExcelTool.resetCellMaxTextLength();
EasyExcel.write(getAbsoluteFile(filename), clazz).sheet(sheetName).doWrite(list);