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支持Excel导出对象的多个子列表

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This commit is contained in:
Hsy
2025-12-08 09:24:55 +08:00
parent 81786f8a25
commit 4a534ef887
1 changed files with 10 additions and 5 deletions
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15
devttl-common/src/main/java/com/devttl/common/utils/poi/ExcelUtil.java
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@@ -130,12 +130,12 @@ public class ExcelUtil<T> {
/** /**
* 对象的子列表方法 * 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 * 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 * 统计列表
@@ -200,7 +200,10 @@ public class ExcelUtil<T> {
if (StringUtils.isNotEmpty(title)) { if (StringUtils.isNotEmpty(title)) {
int titleLastCol = this.fields.size() - 1; int titleLastCol = this.fields.size() - 1;
if (isSubList()) { 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); Row titleRow = sheet.createRow(rownum == 0 ? rownum++ : 0);
titleRow.setHeightInPoints(30); titleRow.setHeightInPoints(30);
@@ -598,9 +601,9 @@ public class ExcelUtil<T> {
if (Collection.class.isAssignableFrom(field.getType())) { if (Collection.class.isAssignableFrom(field.getType())) {
try { try {
Collection<?> subList = (Collection<?>) getTargetValue(vo, field, excel); Collection<?> subList = (Collection<?>) getTargetValue(vo, field, excel);
List<Field> currentSubFields = subFieldsMap.get(field.getName());
if (subList != null && !subList.isEmpty()) { if (subList != null && !subList.isEmpty()) {
int subIndex = 0; int subIndex = 0;
List<Field> currentSubFields = subFieldsMap.get(field.getName());
for (Object subVo : subList) { for (Object subVo : subList) {
Row subRow = sheet.getRow(currentRowNum + subIndex); Row subRow = sheet.getRow(currentRowNum + subIndex);
if (subRow == null) { if (subRow == null) {
@@ -614,8 +617,8 @@ public class ExcelUtil<T> {
} }
subIndex++; subIndex++;
} }
column += currentSubFields.size();
} }
column += currentSubFields.size();
} catch (Exception e) { } catch (Exception e) {
log.error("填充集合数据失败", e); log.error("填充集合数据失败", e);
} }
@@ -1275,6 +1278,8 @@ public class ExcelUtil<T> {
public List<Object[]> getFields() { public List<Object[]> getFields() {
List<Object[]> fields = new ArrayList<Object[]>(); List<Object[]> fields = new ArrayList<Object[]>();
List<Field> tempFields = new ArrayList<>(); List<Field> tempFields = new ArrayList<>();
subFieldsMap = new HashMap<>();
subMethods = new HashMap<>();
tempFields.addAll(Arrays.asList(clazz.getSuperclass().getDeclaredFields())); tempFields.addAll(Arrays.asList(clazz.getSuperclass().getDeclaredFields()));
tempFields.addAll(Arrays.asList(clazz.getDeclaredFields())); tempFields.addAll(Arrays.asList(clazz.getDeclaredFields()));
if (StringUtils.isNotEmpty(includeFields)) { if (StringUtils.isNotEmpty(includeFields)) {