Excel注解支持自动统计数据总和

RuoYi

2020-08-26 215952da7a3b78d02d5ec83f1f69974f43dab813

 src/main/java/com/ruoyi/common/utils/poi/ExcelUtil.java

@@ -8,6 +8,7 @@
import java.lang.reflect.Field;

import java.lang.reflect.Method;

import java.math.BigDecimal;

import java.text.DecimalFormat;

import java.util.ArrayList;

import java.util.Arrays;

import java.util.Comparator;

@@ -15,6 +16,7 @@
import java.util.HashMap;

import java.util.List;

import java.util.Map;

import java.util.Set;

import java.util.UUID;

import java.util.stream.Collectors;

import org.apache.poi.hssf.usermodel.HSSFDateUtil;

@@ -101,6 +103,16 @@
     * 注解列表

     */

    private List<Object[]> fields;



    /**

     * 统计列表

     */

    private Map<Integer, Double> statistics = new HashMap<Integer, Double>();



    /**

     * 数字格式

     */

    private static final DecimalFormat DOUBLE_FORMAT = new DecimalFormat("######0.00");



    /**

     * 实体对象

@@ -341,6 +353,7 @@
                if (Type.EXPORT.equals(type))

                {

                    fillExcelData(index, row);

                    addStatisticsRow();

                }

            }

            String filename = encodingFilename(sheetName);

@@ -447,6 +460,15 @@
        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();

        totalFont.setFontName("Arial");

        totalFont.setFontHeightInPoints((short) 10);

        style.setFont(totalFont);

        styles.put("total", style);



        return styles;

    }

@@ -546,15 +568,20 @@
                {

                    cell.setCellValue(convertByExp(Convert.toStr(value), readConverterExp, separator));

                }

                else if (StringUtils.isNotEmpty(dictType))

                else if (StringUtils.isNotEmpty(dictType) && StringUtils.isNotNull(value))

                {

                    cell.setCellValue(convertDictByExp(Convert.toStr(value), dictType, separator));

                }

                else if (value instanceof BigDecimal && -1 != attr.scale())

                {

                    cell.setCellValue((((BigDecimal) value).setScale(attr.scale(), attr.roundingMode())).toString());

                }

                else

                {

                    // 设置列类型

                    setCellVo(value, attr, cell);

                }

                addStatisticsData(column, Convert.toStr(value), attr);

            }

        }

        catch (Exception e)

@@ -719,6 +746,53 @@
    public static String reverseDictByExp(String dictLabel, String dictType, String separator)

    {

        return DictUtils.getDictValue(dictType, dictLabel, separator);

    }



    /**

     * 合计统计信息

     */

    private void addStatisticsData(Integer index, String text, Excel entity)

    {

        if (entity != null && entity.isStatistics())

        {

            Double temp = 0D;

            if (!statistics.containsKey(index))

            {

                statistics.put(index, temp);

            }

            try

            {

                temp = Double.valueOf(text);

            }

            catch (NumberFormatException e)

            {

            }

            statistics.put(index, statistics.get(index) + temp);

        }

    }



    /**

     * 创建统计行

     */

    public void addStatisticsRow()

    {

        if (statistics.size() > 0)

        {

            Cell cell = null;

            Row row = sheet.createRow(sheet.getLastRowNum() + 1);

            Set<Integer> keys = statistics.keySet();

            cell = row.createCell(0);

            cell.setCellStyle(styles.get("total"));

            cell.setCellValue("合计");



            for (Integer key : keys)

            {

                cell = row.createCell(key);

                cell.setCellStyle(styles.get("total"));

                cell.setCellValue(DOUBLE_FORMAT.format(statistics.get(key)));

            }

            statistics.clear();

        }

    }



    /**

@@ -896,7 +970,14 @@
                    }

                    else

                    {

                        val = new BigDecimal(val.toString()); // 浮点格式处理

                        if ((Double) val % 1 > 0)

                        {

                            val = new BigDecimal(val.toString());

                        }

                        else

                        {

                            val = new DecimalFormat("0").format(val);

                        }

                    }

                }

                else if (cell.getCellTypeEnum() == CellType.STRING)