org.apache.ibatis.cache.CacheException: Error serializing object. Cause: java.io.NotSerializableExc

org.apache.ibatis.cache.CacheException: Error serializing object. Cause: java.io.NotSerializableException: com.baizhi.entity.User at org.apache.ibatis.cache.decorators.SerializedCache.serialize(SerializedCache.java:100) atorg.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:97) at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290) at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70) Caused by: java.io.NotSerializableException: com.baizhi.entity.User at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1184) at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:348) org.apache.ibatis.cache.decorators.SerializedCache.serialize(SerializedCache.java:96) … 47 more
원인: mybatis 에서 2 레벨 캐시를 사용할 때 실체 클래스를 서열화해야 한다implements Serializable, 내 mapper 파일은 라벨을 사용하고 mybatis 제공된 2 레벨 캐시를 사용하기 때문에 내 실체 클래스에서 서열화해야 한다

<mapper namespace="com.baizhi.dao.UserDao">
     
    <cache/>
    <select id="selectAllUsers" resultType="User">
        select id,
               phone,
               password,
                name,
        from c_user
    select>
mapper>

@Data @AllArgsConstructor @NoArgsConstructor public class User implements Serializable { private String id; private String phone; private String password; private String name; }