RuoYi
2022-05-09 ea1014ff8f34c2783eeff8f474734ead840930c0
src/main/java/com/ruoyi/common/utils/poi/ExcelUtil.java
@@ -22,6 +22,7 @@
import java.util.UUID;
import java.util.stream.Collectors;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.lang3.RegExUtils;
import org.apache.poi.hssf.usermodel.HSSFClientAnchor;
import org.apache.poi.hssf.usermodel.HSSFPicture;
import org.apache.poi.hssf.usermodel.HSSFPictureData;
@@ -87,6 +88,8 @@
public class ExcelUtil<T>
{
    private static final Logger log = LoggerFactory.getLogger(ExcelUtil.class);
    public static final String FORMULA_REGEX_STR = "=|-|\\+|@";
    public static final String[] FORMULA_STR = { "=", "-", "+", "@" };
@@ -669,21 +672,46 @@
        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(annotationStyles(wb));
        style = wb.createCellStyle();
        style.cloneStyleFrom(styles.get("data"));
        style.setAlignment(HorizontalAlignment.CENTER);
        styles.put("data2", style);
        return styles;
    }
        style = wb.createCellStyle();
        style.cloneStyleFrom(styles.get("data"));
        style.setAlignment(HorizontalAlignment.RIGHT);
        styles.put("data3", style);
    /**
     * 根据Excel注解创建表格样式
     *
     * @param wb 工作薄对象
     * @return 自定义样式列表
     */
    private Map<String, CellStyle> annotationStyles(Workbook wb)
    {
        Map<String, CellStyle> styles = new HashMap<String, CellStyle>();
        for (Object[] os : fields)
        {
            Excel excel = (Excel) os[1];
            String key = "data_" + excel.align() + "_" + excel.color();
            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());
                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;
    }
@@ -714,9 +742,9 @@
        {
            String cellValue = Convert.toStr(value);
            // 对于任何以表达式触发字符 =-+@开头的单元格,直接使用tab字符作为前缀,防止CSV注入。
            if (StringUtils.containsAny(cellValue, FORMULA_STR))
            if (StringUtils.startsWithAny(cellValue, FORMULA_STR))
            {
                cellValue = StringUtils.replaceEach(cellValue, FORMULA_STR, new String[] { "\t=", "\t-", "\t+", "\t@" });
                cellValue = RegExUtils.replaceFirst(cellValue, FORMULA_REGEX_STR, "\t$0");
            }
            cell.setCellValue(StringUtils.isNull(cellValue) ? attr.defaultValue() : cellValue + attr.suffix());
        }
@@ -783,17 +811,10 @@
            // 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);
        }
    }
@@ -812,8 +833,7 @@
            {
                // 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("data_" + attr.align() + "_" + attr.color()));
                // 用于读取对象中的属性
                Object value = getTargetValue(vo, field, attr);
@@ -857,48 +877,29 @@
    }
    /**
     * 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)
        {
@@ -909,7 +910,6 @@
        {
            dataValidation.setSuppressDropDownArrow(false);
        }
        sheet.addValidationData(dataValidation);
    }