RuoYi
2022-07-20 332d717094fd7d85f2fbe1a762b14913ebc03a68
src/main/java/com/ruoyi/common/utils/poi/ExcelUtil.java
@@ -650,20 +650,6 @@
        styles.put("data", style);
        style = wb.createCellStyle();
        style.cloneStyleFrom(styles.get("data"));
        style.setAlignment(HorizontalAlignment.CENTER);
        style.setVerticalAlignment(VerticalAlignment.CENTER);
        style.setFillForegroundColor(IndexedColors.GREY_50_PERCENT.getIndex());
        style.setFillPattern(FillPatternType.SOLID_FOREGROUND);
        Font headerFont = wb.createFont();
        headerFont.setFontName("Arial");
        headerFont.setFontHeightInPoints((short) 10);
        headerFont.setBold(true);
        headerFont.setColor(IndexedColors.WHITE.getIndex());
        style.setFont(headerFont);
        styles.put("header", style);
        style = wb.createCellStyle();
        style.setAlignment(HorizontalAlignment.CENTER);
        style.setVerticalAlignment(VerticalAlignment.CENTER);
        Font totalFont = wb.createFont();
@@ -672,21 +658,84 @@
        style.setFont(totalFont);
        styles.put("total", style);
        style = wb.createCellStyle();
        style.cloneStyleFrom(styles.get("data"));
        style.setAlignment(HorizontalAlignment.LEFT);
        styles.put("data1", style);
        styles.putAll(annotationHeaderStyles(wb, styles));
        style = wb.createCellStyle();
        style.cloneStyleFrom(styles.get("data"));
        style.setAlignment(HorizontalAlignment.CENTER);
        styles.put("data2", style);
        styles.putAll(annotationDataStyles(wb));
        style = wb.createCellStyle();
        style.cloneStyleFrom(styles.get("data"));
        style.setAlignment(HorizontalAlignment.RIGHT);
        styles.put("data3", style);
        return styles;
    }
    /**
     * 根据Excel注解创建表格头样式
     *
     * @param wb 工作薄对象
     * @return 自定义样式列表
     */
    private Map<String, CellStyle> annotationHeaderStyles(Workbook wb, Map<String, CellStyle> styles)
    {
        Map<String, CellStyle> headerStyles = new HashMap<String, CellStyle>();
        for (Object[] os : fields)
        {
            Excel excel = (Excel) os[1];
            String key = StringUtils.format("header_{}_{}", excel.headerColor(), excel.headerBackgroundColor());
            if (!headerStyles.containsKey(key))
            {
                CellStyle style = wb.createCellStyle();
                style = wb.createCellStyle();
                style.cloneStyleFrom(styles.get("data"));
                style.setAlignment(HorizontalAlignment.CENTER);
                style.setVerticalAlignment(VerticalAlignment.CENTER);
                style.setFillForegroundColor(excel.headerBackgroundColor().index);
                style.setFillPattern(FillPatternType.SOLID_FOREGROUND);
                Font headerFont = wb.createFont();
                headerFont.setFontName("Arial");
                headerFont.setFontHeightInPoints((short) 10);
                headerFont.setBold(true);
                headerFont.setColor(excel.headerColor().index);
                style.setFont(headerFont);
                headerStyles.put(key, style);
            }
        }
        return headerStyles;
    }
    /**
     * 根据Excel注解创建表格列样式
     *
     * @param wb 工作薄对象
     * @return 自定义样式列表
     */
    private Map<String, CellStyle> annotationDataStyles(Workbook wb)
    {
        Map<String, CellStyle> styles = new HashMap<String, CellStyle>();
        for (Object[] os : fields)
        {
            Excel excel = (Excel) os[1];
            String key = StringUtils.format("data_{}_{}_{}", excel.align(), excel.color(), excel.backgroundColor());
            if (!styles.containsKey(key))
            {
                CellStyle style = wb.createCellStyle();
                style = wb.createCellStyle();
                style.setAlignment(excel.align());
                style.setVerticalAlignment(VerticalAlignment.CENTER);
                style.setBorderRight(BorderStyle.THIN);
                style.setRightBorderColor(IndexedColors.GREY_50_PERCENT.getIndex());
                style.setBorderLeft(BorderStyle.THIN);
                style.setLeftBorderColor(IndexedColors.GREY_50_PERCENT.getIndex());
                style.setBorderTop(BorderStyle.THIN);
                style.setTopBorderColor(IndexedColors.GREY_50_PERCENT.getIndex());
                style.setBorderBottom(BorderStyle.THIN);
                style.setBottomBorderColor(IndexedColors.GREY_50_PERCENT.getIndex());
                style.setFillPattern(FillPatternType.SOLID_FOREGROUND);
                style.setFillForegroundColor(excel.backgroundColor().getIndex());
                Font dataFont = wb.createFont();
                dataFont.setFontName("Arial");
                dataFont.setFontHeightInPoints((short) 10);
                dataFont.setColor(excel.color().index);
                style.setFont(dataFont);
                styles.put(key, style);
            }
        }
        return styles;
    }
@@ -700,7 +749,7 @@
        // 写入列信息
        cell.setCellValue(attr.name());
        setDataValidation(attr, row, column);
        cell.setCellStyle(styles.get("header"));
        cell.setCellStyle(styles.get(StringUtils.format("header_{}_{}", attr.headerColor(), attr.headerBackgroundColor())));
        return cell;
    }
@@ -786,17 +835,10 @@
            // 设置列宽
            sheet.setColumnWidth(column, (int) ((attr.width() + 0.72) * 256));
        }
        // 如果设置了提示信息则鼠标放上去提示.
        if (StringUtils.isNotEmpty(attr.prompt()))
        if (StringUtils.isNotEmpty(attr.prompt()) || attr.combo().length > 0)
        {
            // 这里默认设了2-101列提示.
            setXSSFPrompt(sheet, "", attr.prompt(), 1, 100, column, column);
        }
        // 如果设置了combo属性则本列只能选择不能输入
        if (attr.combo().length > 0)
        {
            // 这里默认设了2-101列只能选择不能输入.
            setXSSFValidation(sheet, attr.combo(), 1, 100, column, column);
            // 提示信息或只能选择不能输入的列内容.
            setPromptOrValidation(sheet, attr.combo(), attr.prompt(), 1, 100, column, column);
        }
    }
@@ -815,8 +857,7 @@
            {
                // 创建cell
                cell = row.createCell(column);
                int align = attr.align().value();
                cell.setCellStyle(styles.get("data" + (align >= 1 && align <= 3 ? align : "")));
                cell.setCellStyle(styles.get(StringUtils.format("data_{}_{}_{}", attr.align(), attr.color(), attr.backgroundColor())));
                // 用于读取对象中的属性
                Object value = getTargetValue(vo, field, attr);
@@ -860,48 +901,29 @@
    }
    /**
     * 设置 POI XSSFSheet 单元格提示
     * 设置 POI XSSFSheet 单元格提示或选择框
     * 
     * @param sheet 表单
     * @param promptTitle 提示标题
     * @param textlist 下拉框显示的内容
     * @param promptContent 提示内容
     * @param firstRow 开始行
     * @param endRow 结束行
     * @param firstCol 开始列
     * @param endCol 结束列
     */
    public void setXSSFPrompt(Sheet sheet, String promptTitle, String promptContent, int firstRow, int endRow,
    public void setPromptOrValidation(Sheet sheet, String[] textlist, String promptContent, int firstRow, int endRow,
            int firstCol, int endCol)
    {
        DataValidationHelper helper = sheet.getDataValidationHelper();
        DataValidationConstraint constraint = helper.createCustomConstraint("DD1");
        DataValidationConstraint constraint = textlist.length > 0 ? helper.createExplicitListConstraint(textlist) : helper.createCustomConstraint("DD1");
        CellRangeAddressList regions = new CellRangeAddressList(firstRow, endRow, firstCol, endCol);
        DataValidation dataValidation = helper.createValidation(constraint, regions);
        dataValidation.createPromptBox(promptTitle, promptContent);
        dataValidation.setShowPromptBox(true);
        sheet.addValidationData(dataValidation);
    }
    /**
     * 设置某些列的值只能输入预制的数据,显示下拉框.
     *
     * @param sheet 要设置的sheet.
     * @param textlist 下拉框显示的内容
     * @param firstRow 开始行
     * @param endRow 结束行
     * @param firstCol 开始列
     * @param endCol 结束列
     * @return 设置好的sheet.
     */
    public void setXSSFValidation(Sheet sheet, String[] textlist, int firstRow, int endRow, int firstCol, int endCol)
    {
        DataValidationHelper helper = sheet.getDataValidationHelper();
        // 加载下拉列表内容
        DataValidationConstraint constraint = helper.createExplicitListConstraint(textlist);
        // 设置数据有效性加载在哪个单元格上,四个参数分别是:起始行、终止行、起始列、终止列
        CellRangeAddressList regions = new CellRangeAddressList(firstRow, endRow, firstCol, endCol);
        // 数据有效性对象
        DataValidation dataValidation = helper.createValidation(constraint, regions);
        if (StringUtils.isNotEmpty(promptContent))
        {
            // 如果设置了提示信息则鼠标放上去提示
            dataValidation.createPromptBox("", promptContent);
            dataValidation.setShowPromptBox(true);
        }
        // 处理Excel兼容性问题
        if (dataValidation instanceof XSSFDataValidation)
        {
@@ -912,7 +934,6 @@
        {
            dataValidation.setSuppressDropDownArrow(false);
        }
        sheet.addValidationData(dataValidation);
    }