支持Excel导出对象的多个子列表

RuoYi

2025-12-04 97f30a5415f49afec635f8afd75408c867c91f9a

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

@@ -147,12 +147,12 @@
    /**

     * 对象的子列表方法

     */

    private Map<String, Method> subMethods = new HashMap<>();

    private Map<String, Method> subMethods;



    /**

     * 对象的子列表属性

     */

    private Map<String, List<Field>> subFieldsMap = new HashMap<>();

    private Map<String, List<Field>> subFieldsMap;



    /**

     * 统计列表

@@ -225,7 +225,10 @@
            int titleLastCol = this.fields.size() - 1;

            if (isSubList())

            {

                titleLastCol = titleLastCol + subFieldsMap.values().size() - 1;

                for (List<Field> currentSubFields : subFieldsMap.values())

                {

                    titleLastCol = titleLastCol + currentSubFields.size() - 1;

                }

            }

            Row titleRow = sheet.createRow(rownum == 0 ? rownum++ : 0);

            titleRow.setHeightInPoints(30);

@@ -587,7 +590,6 @@
     * 填充excel数据

     * 

     * @param index 序号

     * @param row 单元格行

     */

    @SuppressWarnings("unchecked")

    public void fillExcelData(int index)

@@ -611,10 +613,10 @@
                    try

                    {

                        Collection<?> subList = (Collection<?>) getTargetValue(vo, field, excel);

                        List<Field> currentSubFields = subFieldsMap.get(field.getName());

                        if (subList != null && !subList.isEmpty())

                        {

                            int subIndex = 0;

                            List<Field> currentSubFields = subFieldsMap.get(field.getName());

                            for (Object subVo : subList)

                            {

                                Row subRow = sheet.getRow(currentRowNum + subIndex);

@@ -631,8 +633,8 @@
                                }

                                subIndex++;

                            }

                            column += currentSubFields.size();

                        }

                        column += currentSubFields.size();

                    }

                    catch (Exception e)

                    {

@@ -1349,6 +1351,8 @@
    {

        List<Object[]> fields = new ArrayList<Object[]>();

        List<Field> tempFields = new ArrayList<>();

        subFieldsMap = new HashMap<>();

        subMethods = new HashMap<>();

        tempFields.addAll(Arrays.asList(clazz.getSuperclass().getDeclaredFields()));

        tempFields.addAll(Arrays.asList(clazz.getDeclaredFields()));

        if (StringUtils.isNotEmpty(includeFields))