diff --git a/src/main/java/com/ydool/staff/entity/Personnel.java b/src/main/java/com/ydool/staff/entity/Personnel.java
index 6047652..5c8ad4f 100644
--- a/src/main/java/com/ydool/staff/entity/Personnel.java
+++ b/src/main/java/com/ydool/staff/entity/Personnel.java
@@ -67,7 +67,7 @@ public class Personnel extends BaseEntity {
     private String education;
 
     @ApiModelProperty(value = "是否应届毕业生")
-    private Boolean freshGraduate;
+    private Integer freshGraduate;
 
     @ApiModelProperty(value = "毕业院校")
     private String academy;
diff --git a/src/main/java/com/ydool/staff/request/PersonnelRequest.java b/src/main/java/com/ydool/staff/request/PersonnelRequest.java
index fb3a66d..c34dc3d 100644
--- a/src/main/java/com/ydool/staff/request/PersonnelRequest.java
+++ b/src/main/java/com/ydool/staff/request/PersonnelRequest.java
@@ -32,7 +32,7 @@ public class PersonnelRequest {
 
     @ApiModelProperty(value = "性别")
     @NotNull(message = "性别不能为空")
-    private Boolean gender;
+    private Integer gender;
 
     @ApiModelProperty(value = "出生日期")
     @JsonFormat(pattern = "yyyy-MM-dd", timezone = "GMT+8")
diff --git a/src/main/java/com/ydool/staff/service/impl/PersonnelServiceImpl.java b/src/main/java/com/ydool/staff/service/impl/PersonnelServiceImpl.java
index 75a2b4e..62743e8 100644
--- a/src/main/java/com/ydool/staff/service/impl/PersonnelServiceImpl.java
+++ b/src/main/java/com/ydool/staff/service/impl/PersonnelServiceImpl.java
@@ -33,6 +33,7 @@ import org.springframework.transaction.annotation.Transactional;
 import org.thymeleaf.util.StringUtils;
 
 import javax.annotation.Resource;
+import javax.validation.constraints.Null;
 import java.lang.reflect.Field;
 import java.util.ArrayList;
 import java.util.Arrays;
@@ -249,7 +250,7 @@ public class PersonnelServiceImpl extends BaseService<PersonnelMapper, Personnel
             }
             return path;
         }
-        return null;
+        return new ArrayList<>();
     }
 
     public void saveAlteration(String details,Object before ,Object after,String type, String id){
@@ -258,8 +259,12 @@ public class PersonnelServiceImpl extends BaseService<PersonnelMapper, Personnel
             alteration.setDetails(details);
             alteration.setType(type);
             alteration.setRelevancyId(id);
-            alteration.setBeforeChange((String) before);
-            alteration.setAfterChange((String) after);
+            if (ObjectUtil.isNotNull(before)){
+                alteration.setBeforeChange( before.toString());
+            }else {
+                alteration.setBeforeChange("无");
+            }
+            alteration.setAfterChange(after.toString());
             alterationMapper.insert(alteration);
         }
 
@@ -268,8 +273,8 @@ public class PersonnelServiceImpl extends BaseService<PersonnelMapper, Personnel
         if (StrUtil.isNotBlank(file)){
             List<String> cardFile = Arrays.asList(file.split(","));
             ArrayList<AttachmentDto> attachmentDtos = new ArrayList<>();
-            AttachmentDto dto = new AttachmentDto();
             for (String s : cardFile) {
+                AttachmentDto dto = new AttachmentDto();
                 Attachment attachment = attachmentService.selectByIdAndPath(id, s);
                 if (ObjectUtil.isNotEmpty(attachment)){
                     dto.setName(attachment.getName());
@@ -277,6 +282,7 @@ public class PersonnelServiceImpl extends BaseService<PersonnelMapper, Personnel
                     dto.setSize(attachment.getSize());
                     attachmentDtos.add(dto);
                 }
+
             }
             return attachmentDtos;
         }