我开始用spring Boot 和angular做一个项目，我有一个数据库，我想在那里存储一个文件。我已经将这个列设置为Blob，但是在用文件填充我的数据库之后，Spring不想再工作了。
下面是我得到的错误：

ERROR[0;39m [35m19036[0;39m [2m---[0;39m [2m[nio-8080-exec-7][0;39m [36mo.a.c.c.C.[.[.[.[dispatcherServlet]     [0;39m [2m:[0;39m Servlet.service() for servlet [dispatcherServlet] in context with path [/alternance] threw exception [Request processing failed: org.springframework.http.converter.HttpMessageConversionException: Type definition error: [simple type, class java.io.ByteArrayInputStream]] with root cause  com.fasterxml.jackson.databind.exc.InvalidDefinitionException: No serializer found for class java.io.ByteArrayInputStream and no properties discovered to create BeanSerializer (to avoid exception, disable SerializationFeature.FAIL_ON_EMPTY_BEANS) (through reference chain: java.util.ArrayList[7]->com.alternance.dto.StageDTO["motivationFile"]->jdk.proxy2.$Proxy134["wrappedBlob"]->com.mysql.cj.jdbc.Blob["binaryStream"])

下面的代码似乎是问题所在：

import java.sql.Blob;
import java.util.Date;
import java.util.List;

import com.fasterxml.jackson.annotation.JsonIgnore;

import jakarta.persistence.Entity;
import jakarta.persistence.GeneratedValue;
import jakarta.persistence.GenerationType;
import jakarta.persistence.Id;

@Entity
public class Stage {
    
    @Id
    @GeneratedValue (strategy = GenerationType.IDENTITY)
    private Long id;
    private Blob motivationFile;

有人能帮帮我吗