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update 优化 excel导出字典转下拉框 无需标记index自动处理(感谢一夏coco)

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疯狂的狮子Li
2023-08-01 13:14:26 +08:00
parent 348938eb96
commit 352caa3e93
13 changed files with 29 additions and 31 deletions
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26
ruoyi-common/ruoyi-common-excel/src/main/java/org/dromara/common/excel/core/ExcelDownHandler.java
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@ -5,7 +5,9 @@ import cn.hutool.core.util.ArrayUtil;
import cn.hutool.core.util.EnumUtil;
import cn.hutool.core.util.ObjectUtil;
import cn.hutool.core.util.StrUtil;
import com.alibaba.excel.annotation.ExcelProperty;
import com.alibaba.excel.metadata.FieldCache;
import com.alibaba.excel.metadata.FieldWrapper;
import com.alibaba.excel.util.ClassUtils;
import com.alibaba.excel.write.handler.SheetWriteHandler;
import com.alibaba.excel.write.metadata.holder.WriteSheetHolder;
import com.alibaba.excel.write.metadata.holder.WriteWorkbookHolder;
@ -83,16 +85,18 @@ public class ExcelDownHandler implements SheetWriteHandler {
Sheet sheet = writeSheetHolder.getSheet();
// 开始设置下拉框 HSSFWorkbook
DataValidationHelper helper = sheet.getDataValidationHelper();
Field[] fields = writeWorkbookHolder.getClazz().getDeclaredFields();
Workbook workbook = writeWorkbookHolder.getWorkbook();
int length = fields.length;
for (int i = 0; i < length; i++) {
FieldCache fieldCache = ClassUtils.declaredFields(writeWorkbookHolder.getClazz(), writeWorkbookHolder);
for (Map.Entry<Integer, FieldWrapper> entry : fieldCache.getSortedFieldMap().entrySet()) {
Integer index = entry.getKey();
FieldWrapper wrapper = entry.getValue();
Field field = wrapper.getField();
// 循环实体中的每个属性
// 可选的下拉值
List<String> options = new ArrayList<>();
if (fields[i].isAnnotationPresent(ExcelDictFormat.class)) {
if (field.isAnnotationPresent(ExcelDictFormat.class)) {
// 如果指定了@ExcelDictFormat，则使用字典的逻辑
ExcelDictFormat format = fields[i].getDeclaredAnnotation(ExcelDictFormat.class);
ExcelDictFormat format = field.getDeclaredAnnotation(ExcelDictFormat.class);
String dictType = format.dictType();
String converterExp = format.readConverterExp();
if (StrUtil.isNotBlank(dictType)) {
@ -105,20 +109,14 @@ public class ExcelDownHandler implements SheetWriteHandler {
// 如果指定了确切的值，则直接解析确切的值
options = StrUtil.split(converterExp, format.separator(), true, true);
}
} else if (fields[i].isAnnotationPresent(ExcelEnumFormat.class)) {
} else if (field.isAnnotationPresent(ExcelEnumFormat.class)) {
// 否则如果指定了@ExcelEnumFormat，则使用枚举的逻辑
ExcelEnumFormat format = fields[i].getDeclaredAnnotation(ExcelEnumFormat.class);
ExcelEnumFormat format = field.getDeclaredAnnotation(ExcelEnumFormat.class);
List<Object> values = EnumUtil.getFieldValues(format.enumClass(), format.textField());
options = StreamUtils.toList(values, String::valueOf);
}
if (ObjectUtil.isNotEmpty(options)) {
// 仅当下拉可选项不为空时执行
// 获取列下标，默认为当前循环次数
int index = i;
if (fields[i].isAnnotationPresent(ExcelProperty.class)) {
// 如果指定了列下标，以指定的为主
index = fields[i].getDeclaredAnnotation(ExcelProperty.class).index();
}
if (options.size() > 20) {
// 这里限制如果可选项大于20，则使用额外表形式
dropDownWithSheet(helper, workbook, sheet, index, options);