v1.0.5

src/main/java/com/imyeyu/api/modules/common/mapper/AttachmentMapper.java

@@ -4,6 +4,7 @@ import com.imyeyu.api.modules.common.entity.Attachment;
 import com.imyeyu.spring.bean.Page;
 import com.imyeyu.spring.mapper.BaseMapper;
 import com.imyeyu.spring.mapper.RawMapper;
+import org.apache.ibatis.annotations.Param;
 import org.apache.ibatis.annotations.Select;
 
 import java.util.List;
@@ -31,6 +32,8 @@ public interface AttachmentMapper extends BaseMapper<Attachment, String>, RawMap
 
 	List<Attachment> selectByBizId(Attachment.BizType bizType, String bizId, List<String> attachTypes, Page<Attachment> page);
 
+	List<Attachment> selectByBizIdList(@Param("bizType") Attachment.BizType bizType, @Param("bizIdList") List<String> bizIdList, @Param("attachTypes") List<String> attachTypes);
+
 	long countByBizId(Attachment.BizType bizType, String bizId, List<String> attachTypes);
 
 	/**

src/main/java/com/imyeyu/api/modules/common/service/AttachmentService.java

@@ -9,6 +9,7 @@ import com.imyeyu.spring.service.BaseService;
 
 import java.io.InputStream;
 import java.util.List;
+import java.util.Map;
 
 /**
  * 附件服务
@@ -50,6 +51,16 @@ public interface AttachmentService extends BaseService<Attachment, String> {
 	 */
 	List<Attachment> listByBizId(Attachment.BizType bizType, String bizId, String... attachTypes);
 
+	/**
+	 * 根据多个业务 ID 批量获取附件。
+	 *
+	 * @param bizType     业务类型
+	 * @param bizIdList   业务 ID 列表
+	 * @param attachTypes 附件类型，可为 null
+	 * @return 按业务 ID 分组的附件列表
+	 */
+	Map<String, List<Attachment>> mapByBizIdList(Attachment.BizType bizType, List<String> bizIdList, String... attachTypes);
+
 	/**
 	 * 根据业务获取所有附件
 	 *

src/main/java/com/imyeyu/api/modules/common/service/implement/AttachmentServiceImplement.java

@@ -43,7 +43,9 @@ import java.io.ByteArrayOutputStream;
 import java.io.File;
 import java.io.IOException;
 import java.io.InputStream;
+import java.util.ArrayList;
 import java.util.List;
+import java.util.Map;
 import java.util.Objects;
 import java.util.Set;
 import java.util.UUID;
@@ -310,6 +312,22 @@ public class AttachmentServiceImplement extends AbstractEntityService<Attachment
 		return mapper.selectByBizId(bizType, bizId, List.of(attachTypes), null);
 	}
 
+	@Override
+	public Map<String, List<Attachment>> mapByBizIdList(Attachment.BizType bizType, List<String> bizIdList, String... attachTypes) {
+		if (bizIdList == null || bizIdList.isEmpty()) {
+			return Map.of();
+		}
+		List<String> normalizedBizIdList = bizIdList.stream()
+				.filter(TimiJava::isNotEmpty)
+				.distinct()
+				.toList();
+		if (normalizedBizIdList.isEmpty()) {
+			return Map.of();
+		}
+		return mapper.selectByBizIdList(bizType, new ArrayList<>(normalizedBizIdList), List.of(attachTypes)).stream()
+				.collect(Collectors.groupingBy(Attachment::getBizId));
+	}
+
 	@Override
 	public long countByBizId(Attachment.BizType bizType, String bizId, String... attachTypes) {
 		return mapper.countByBizId(bizType, bizId, List.of(attachTypes));