diff --git a/src/main/resources/META-INF/persistence.xml b/src/main/resources/META-INF/persistence.xml
index 3d68dc9..e40c753 100644
--- a/src/main/resources/META-INF/persistence.xml
+++ b/src/main/resources/META-INF/persistence.xml
@@ -8,21 +8,23 @@
         <!-- 指定 JPA 提供者 -->
         <provider>org.hibernate.jpa.HibernatePersistenceProvider</provider>
 
-        <!-- 注册实体类 -->
+        <!-- 仅保留 UserPT 实体，避免其它实体的 @MapsId 映射错误 -->
+        <!-- 全限定名，确保 JPA 真正注册到 EMF -->
+        <class>object.UserPT</class>
         <class>object.Seed</class>
         <class>object.User</class>
-        <class>object.UserPT</class>
         <class>object.Notice</class>
         <class>object.BegInfo</class>
         <class>object.Post</class>
         <class>object.Profile</class>
+       
 
         <!-- 数据库连接配置 -->
         <properties>
             <property name="javax.persistence.jdbc.url" value="${DB_URL}"/>
             <property name="javax.persistence.jdbc.user" value="${DB_USER}"/>
             <property name="javax.persistence.jdbc.password" value="${DB_PASSWORD}"/>
-            <property name="javax.persistence.jdbc.driver" value="${DB_DRIVER}"/>
+            <property name="javax.persistence.jdbc.driver" value="com.mysql.cj.jdbc.Driver"/>
 
             <!-- Hibernate 配置 -->
             <property name="hibernate.dialect" value="org.hibernate.dialect.MySQLDialect"/>