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!781 Excel模版动态数据下拉

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* Excel模版动态数据下拉
* Excel模版动态数据下拉
This commit is contained in:
Angus
2025-11-11 01:58:55 +00:00
committed by 疯狂的狮子Li
parent 9bff358afd
commit 37038449ab
3 changed files with 52 additions and 0 deletions
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20
ruoyi-common/ruoyi-common-excel/src/main/java/org/dromara/common/excel/annotation/ExcelDynamicOptions.java Normal file
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@@ -0,0 +1,20 @@
package org.dromara.common.excel.annotation;
import java.lang.annotation.*;
/**
* Excel动态下拉选项注解
*
* @author Angus
*/
@Target({ElementType.FIELD})
@Retention(RetentionPolicy.RUNTIME)
@Inherited
public @interface ExcelDynamicOptions {
/**
* 提供者类全限定名
* 实现org.dromara.common.excel.service.ExcelOptionsProvider实现类接口
*/
Class<?> providerClass();
}

14
ruoyi-common/ruoyi-common-excel/src/main/java/org/dromara/common/excel/core/ExcelDownHandler.java
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@@ -23,7 +23,9 @@ import org.dromara.common.core.utils.SpringUtils;
import org.dromara.common.core.utils.StreamUtils;
import org.dromara.common.core.utils.StringUtils;
import org.dromara.common.excel.annotation.ExcelDictFormat;
import org.dromara.common.excel.annotation.ExcelDynamicOptions;
import org.dromara.common.excel.annotation.ExcelEnumFormat;
import org.dromara.common.excel.service.ExcelOptionsProvider;
import java.lang.reflect.Field;
import java.util.*;
@@ -117,6 +119,18 @@ public class ExcelDownHandler implements SheetWriteHandler {
ExcelEnumFormat format = field.getDeclaredAnnotation(ExcelEnumFormat.class);
List<Object> values = EnumUtil.getFieldValues(format.enumClass(), format.textField());
options = StreamUtils.toList(values, Convert::toStr);
} else if (field.isAnnotationPresent(ExcelDynamicOptions.class)) {
// 处理动态下拉选项
ExcelDynamicOptions dynamicOptions = field.getDeclaredAnnotation(ExcelDynamicOptions.class);
Class<?> providerClass = dynamicOptions.providerClass();
if (providerClass == null) {
throw new ServiceException("使用ExcelDynamicOptions注解，必须给providerClass赋予ExcelOptionsProvider的实现类" +
"，字段：{}", field.getName());
}
// 获取提供者实例
ExcelOptionsProvider provider = (ExcelOptionsProvider) SpringUtils.getBean(providerClass);
Set<String> optionSets = provider.getOptions();
options = new ArrayList<>(CollUtil.isNotEmpty(optionSets) ? new ArrayList<>(optionSets) : Collections.emptyList());
}
if (ObjectUtil.isNotEmpty(options)) {
// 仅当下拉可选项不为空时执行

18
ruoyi-common/ruoyi-common-excel/src/main/java/org/dromara/common/excel/service/ExcelOptionsProvider.java Normal file
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@@ -0,0 +1,18 @@
package org.dromara.common.excel.service;
import java.util.Set;
/**
* Excel下拉选项数据提供接口
*
* @author Angus
*/
public interface ExcelOptionsProvider {
/**
* 获取下拉选项数据
*
* @return 下拉选项列表
*/
Set<String> getOptions();
}