如何将类型为SET的mysql实体属性映射到spring实体中？

@Entity
public class User {
    // other properties
    
    @ElementCollection
    private Set<String> roles;
    
    // getters and setters
}

@Entity
public class User {
    // other properties
    
    @ElementCollection
    @CollectionTable(name = "user_roles", joinColumns = @JoinColumn(name = "user_id"))
    private Set<String> roles;
    
    // getters and setters
}

<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
    <property name="driverClassName" value="com.mysql.jdbc.Driver" />
    <property name="url" value="jdbc:mysql://localhost:3306/mydatabase" />
    <property name="username" value="root" />
    <property name="password" value="password" />
</bean>

<bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
    <property name="dataSource" ref="dataSource" />
    <property name="packagesToScan" value="com.example.entities" />
    <property name="jpaVendorAdapter">
        <bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
            <property name="database" value="MYSQL" />
            <property name="showSql" value="true" />
        </bean>
    </property>
</bean>

<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
    <property name="entityManagerFactory" ref="entityManagerFactory" />
</bean>

@Repository
public interface UserRepository extends JpaRepository<User, Long> {
    // other methods
    
    void save(User user);
}