我正在編寫具有兩個實體類教師和部門的 Spring Boot 應用程序。我正在使用 JPA 和 H2 內存數據庫。當我運行應用程序表時沒有在 h2 數據庫中創建。我已經使用 @componentScan 注釋指定要掃描的包，但我認為 spring 沒有找到實體類的位置。應用類-package com.H2DatabaseDemo;import org.springframework.boot.SpringApplication;import org.springframework.boot.autoconfigure.SpringBootApplication;import org.springframework.context.annotation.ComponentScan;@SpringBootApplication@ComponentScan(basePackages="com.H2DatabaseDemo")public class H2DatabaseDemoApplication {    public static void main(String[] args) {        SpringApplication.run(H2DatabaseDemoApplication.class, args);    }}作者實體-package com.H2DatabaseDemo.model;import java.util.List;import javax.persistence.Entity;import javax.persistence.GeneratedValue;import javax.persistence.GenerationType;import javax.persistence.Id;import javax.persistence.OneToMany;@Entitypublic class Author {    @Id    @GeneratedValue(strategy=GenerationType.IDENTITY)    private long id;    private String title;    private String body;    public Author() {}    public long getId() {        return id;    }    public void setId(long id) {        this.id = id;    }    public String getTitle() {        return title;    }    public void setTitle(String title) {        this.title = title;    }    public String getBody() {        return body;    }    public void setBody(String body) {        this.body = body;    }}郵政實體-package com.H2DatabaseDemo.model;import java.awt.List;import javax.persistence.Entity;import javax.persistence.GeneratedValue;import javax.persistence.GenerationType;import javax.persistence.Id;import javax.persistence.ManyToOne;@Entitypublic class Post {    @Id    @GeneratedValue(strategy=GenerationType.IDENTITY)    private long id;    private String name;    public Post() {}    public Post(long id, String name) {                 this.id = id;        this.name = name;               }        public long getId() {        return id;    }    public void setId(long id) {        this.id = id;    }