提取不到结果时不用给property赋值

src/main/java/com/supervision/police/domain/CaseEvidence.java

@@ -6,6 +6,7 @@ import com.baomidou.mybatisplus.annotation.TableId;
 import com.baomidou.mybatisplus.annotation.TableName;
 import java.io.Serializable;
 import java.time.LocalDateTime;
+import java.util.ArrayList;
 import java.util.List;
 
 import com.fasterxml.jackson.annotation.JsonFormat;
@@ -57,7 +58,7 @@ public class CaseEvidence implements Serializable {
      * 属性
      */
     @TableField(typeHandler = NotePromptExtractAttributesTypeHandler.class)
-    private List<NotePromptExtractAttributesDto> property;
+    private List<NotePromptExtractAttributesDto> property = new ArrayList<>();
 
     /**
      * 证据提供人

src/main/java/com/supervision/police/service/impl/CaseEvidenceServiceImpl.java

@@ -4,7 +4,6 @@ import cn.hutool.core.collection.CollUtil;
 import cn.hutool.core.date.DateTime;
 import cn.hutool.core.lang.Assert;
 import cn.hutool.core.util.StrUtil;
-import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
 import cn.hutool.json.JSONUtil;
 import com.baomidou.mybatisplus.core.metadata.IPage;
 import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
@@ -139,7 +138,6 @@ public class CaseEvidenceServiceImpl extends ServiceImpl<CaseEvidenceMapper, Cas
         }
 
 
-
         return true;
     }
 
@@ -205,7 +203,6 @@ public class CaseEvidenceServiceImpl extends ServiceImpl<CaseEvidenceMapper, Cas
                                                         Page<CaseEvidence> page) {
 
 
-
         if (null == queryDirectory || queryDirectory.getLevel() != 3) {
 
             /*if (null != queryDirectory && CollUtil.isEmpty(queryDirectory.listAllFileId())){
@@ -282,8 +279,11 @@ public class CaseEvidenceServiceImpl extends ServiceImpl<CaseEvidenceMapper, Cas
                 long attrStart = System.currentTimeMillis();
                 llmExtractDto.setPrompt(notePrompt.getPrompt());
                 llmExtractDto.setExtractAttributes(notePrompt.getExtractAttributes());
+                List<LLMExtractDto> llmExtractDtos = llmExtractService.extractAttribute(Collections.singletonList(llmExtractDto));
+                if (!llmExtractDtos.isEmpty()) {
                     llmExtractDto = llmExtractService.extractAttribute(Collections.singletonList(llmExtractDto)).get(0);
                     caseEvidence.setProperty(llmExtractDto.getExtractAttributes());
+                }
                 log.info("属性提取完成。更新证据处理状态为【属性提取完成】。属性:【{}】。耗时:【{}】", caseEvidence.getProperty(), System.currentTimeMillis() - attrStart);
                 caseEvidence.setProcessStatus(EvidenceConstants.PROCESS_STATUS_ATTR_EXTRACT_OK);
                 updateById(caseEvidence);