2、创建主实体类Payment

```java package com.wzy.springcloud.Entities;

import lombok.AllArgsConstructor; import lombok.Data; import lombok.NoArgsConstructor;

import java.io.Serializable;

@Data //Getter、Setter @AllArgsConstructor //全参构造器 @NoArgsConstructor //无参构造器 public class Payment implements Serializable { private Long id; private String serial;

}

```