diff --git a/src/main/java/com/chint/application/dtos/system/SystemAnnouncementVO.java b/src/main/java/com/chint/application/dtos/system/SystemAnnouncementVO.java
index 48f0308a..cf4d5538 100644
--- a/src/main/java/com/chint/application/dtos/system/SystemAnnouncementVO.java
+++ b/src/main/java/com/chint/application/dtos/system/SystemAnnouncementVO.java
@@ -1,5 +1,6 @@
 package com.chint.application.dtos.system;
 
+import com.fasterxml.jackson.annotation.JsonFormat;
 import lombok.Data;
 
 import java.time.LocalDateTime;
@@ -10,7 +11,9 @@ public class SystemAnnouncementVO {
     private String title; // 公告的标题
     private String content; // 公告的详细内容
     private String postedBy; // 发布公告的用户或管理员的用户名
+    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", timezone = "GMT+8")
     private LocalDateTime postDate; // 公告发布的日期和时间
+    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", timezone = "GMT+8")
     private LocalDateTime expiryDate; // 公告的过期日期
     private String status; // 公告的状态
     private Integer priority; // 公告的优先级，用于排序
diff --git a/src/main/java/com/chint/domain/aggregates/system/SystemAnnouncement.java b/src/main/java/com/chint/domain/aggregates/system/SystemAnnouncement.java
index 22c2b54f..4dd750ad 100644
--- a/src/main/java/com/chint/domain/aggregates/system/SystemAnnouncement.java
+++ b/src/main/java/com/chint/domain/aggregates/system/SystemAnnouncement.java
@@ -6,6 +6,7 @@ import com.chint.application.dtos.system.SystemAnnouncementVO;
 import com.chint.domain.aggregates.user.User;
 import com.chint.infrastructure.util.BaseContext;
 import com.chint.infrastructure.util.DateTimeUtil;
+import com.fasterxml.jackson.annotation.JsonFormat;
 import lombok.Data;
 import org.springframework.data.annotation.Id;
 import org.springframework.data.relational.core.mapping.MappedCollection;
@@ -29,7 +30,9 @@ public class SystemAnnouncement implements Serializable {
     private String title; // 公告的标题
     private String content; // 公告的详细内容
     private String postedBy; // 发布公告的用户或管理员的用户名
+    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", timezone = "GMT+8")
     private LocalDateTime postDate; // 公告发布的日期和时间
+    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", timezone = "GMT+8")
     private LocalDateTime expiryDate; // 公告的过期日期
     private String status; // 公告的状态
     private Integer priority; // 公告的优先级，用于排序
@@ -80,7 +83,7 @@ public class SystemAnnouncement implements Serializable {
             systemAnnouncement.setExpiryDate(expiryTime);
         }
         systemAnnouncement.setStatus("1");
-        systemAnnouncement.setPriority(0);
+        systemAnnouncement.setPriority(dto.getPriority());
 
         User currentUser = BaseContext.getCurrentUser();
         if (currentUser != null) {