diff --git a/continew-system/src/main/java/top/continew/admin/system/controller/UserMessageController.java b/continew-system/src/main/java/top/continew/admin/system/controller/UserMessageController.java
index 9c7cf8c5..fb3824f5 100644
--- a/continew-system/src/main/java/top/continew/admin/system/controller/UserMessageController.java
+++ b/continew-system/src/main/java/top/continew/admin/system/controller/UserMessageController.java
@@ -16,6 +16,7 @@
 
 package top.continew.admin.system.controller;
 
+import cn.hutool.core.collection.CollUtil;
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.enums.ParameterIn;
@@ -81,8 +82,8 @@ public class UserMessageController {
     @GetMapping("/{id}")
     public MessageDetailResp getMessage(@PathVariable Long id) {
         MessageDetailResp detail = messageService.get(id);
-        CheckUtils.throwIf(detail == null || (NoticeScopeEnum.USER.equals(detail.getScope()) && !detail.getUsers()
-            .contains(UserContextHolder.getUserId().toString())), "消息不存在或无权限访问");
+        CheckUtils.throwIf(detail == null || (NoticeScopeEnum.USER.equals(detail.getScope()) && !CollUtil
+            .contains(detail.getUsers(), UserContextHolder.getUserId().toString())), "消息不存在或无权限访问");
         messageService.readMessage(Collections.singletonList(id), UserContextHolder.getUserId());
         detail.setIsRead(true);
         return detail;
diff --git a/continew-system/src/main/resources/mapper/MessageMapper.xml b/continew-system/src/main/resources/mapper/MessageMapper.xml
index c461949a..5427e119 100644
--- a/continew-system/src/main/resources/mapper/MessageMapper.xml
+++ b/continew-system/src/main/resources/mapper/MessageMapper.xml
@@ -2,6 +2,11 @@
         "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
 <mapper namespace="top.continew.admin.system.mapper.MessageMapper">
 
+    <resultMap id="messageDetailMap" type="top.continew.admin.system.model.resp.message.MessageDetailResp">
+        <id column="id" property="id" />
+        <result property="users" column="users" typeHandler="com.baomidou.mybatisplus.extension.handlers.JacksonTypeHandler" />
+    </resultMap>
+
     <select id="selectMessagePage" resultType="top.continew.admin.system.model.resp.message.MessageResp">
         SELECT
             t1.id,
@@ -9,7 +14,6 @@
             t1.type,
             t1.path,
             t1.scope,
-            t1.users,
             t1.create_time,
             t2.read_time IS NOT NULL AS isRead,
             t2.read_time AS readTime
@@ -39,7 +43,7 @@
         ORDER BY t1.create_time DESC
     </select>
 
-    <select id="selectMessageById" resultType="top.continew.admin.system.model.resp.message.MessageDetailResp">
+    <select id="selectMessageById" resultMap="messageDetailMap">
         SELECT
             t1.id,
             t1.title,