springBoot jpa uuid生成策略

import org.hibernate.annotations.GenericGenerator;

import javax.persistence.*;

@Entity
@Table(name = "Test")
@GenericGenerator(name = "jpa-uuid", strategy = "uuid")
public class Test{
    @Id
    @GeneratedValue(generator = "jpa-uuid")
    @Column(length = 32)
    private String uid;
    private String name;
    public Test(){

    }
    public String getUid() {
        return uid;
    }

    public void setUid(String uid) {
        this.uid = uid;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

}