fix: 处理邮件标题为空导致的空指针异常

service-daq/src/main/java/com/simuwang/daq/service/EmailParseService.java

@@ -176,7 +176,7 @@ public class EmailParseService {
     }
 
     public void saveRelatedTable(String emailAddress, List<EmailContentInfoDTO> emailContentInfoDTOList, Map<EmailContentInfoDTO, List<EmailFundNavDTO>> fileNameNavMap) {
-        String emailTitle = CollUtil.isNotEmpty(emailContentInfoDTOList) ? emailContentInfoDTOList.get(0).getEmailTitle() : null;
+        String emailTitle = CollUtil.isNotEmpty(emailContentInfoDTOList) ? emailContentInfoDTOList.get(0).getEmailTitle() : "";
         String emailDate = CollUtil.isNotEmpty(emailContentInfoDTOList) ? emailContentInfoDTOList.get(0).getEmailDate() : null;
         Integer emailType = CollUtil.isNotEmpty(emailContentInfoDTOList) ? emailContentInfoDTOList.get(0).getEmailType() : null;
         Integer emailId = CollUtil.isNotEmpty(emailContentInfoDTOList) ? emailContentInfoDTOList.get(0).getEmailId() : null;