假設我有兩個簡單的表要在我的Spring Boot應用程序中實現(xiàn)。這是ER圖：這是我的PasswordReset課：@Data@Entitypublic class PasswordReset {@Id @GeneratedValue Long passwordResetID;String eMail;String token;String createdAt;PasswordReset(){}public PasswordReset(String eMail,String token,String createdAt){    this.eMail=eMail;    this.token=token;    this.createdAt=createdAt;}}這是我的User課（部分）：@Data   @Entity   public class User {@Id @GeneratedValue Long UserID;String eMail;String createdAt;String updatedAt;User(){}public User(String eMail,String createdAt,String updatedAt){    this.eMail=eMail;    this.createdAt=createdAt;    this.updatedAt=updatedAt;}}現(xiàn)在我的問題是如何在我的Spring Boot項目中創(chuàng)建外鍵，如我的 ER 圖？這是我的pom.xml：<?xml version="1.0" encoding="UTF-8"?><project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"><modelVersion>4.0.0</modelVersion><parent>    <groupId>org.springframework.boot</groupId>    <artifactId>spring-boot-starter-parent</artifactId>    <version>2.1.6.RELEASE</version>    <relativePath/> <!-- lookup parent from repository --></parent><groupId>com.mua</groupId><artifactId>cse616</artifactId><version>0.0.1-SNAPSHOT</version><name>cse616</name><description>Project for CSE-616</description><properties>    <java.version>11</java.version></properties><dependencies>    <dependency>        <groupId>org.springframework.boot</groupId>        <artifactId>spring-boot-starter-data-jpa</artifactId>    </dependency>    <dependency>        <groupId>org.springframework.boot</groupId>        <artifactId>spring-boot-starter-web-services</artifactId>    </dependency>