Board ( 수정 ) > SPRING_DATA_JPA

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package web.domain;

import jakarta.persistence.Column;

import jakarta.persistence.Entity;

import jakarta.persistence.GeneratedValue;

import jakarta.persistence.GenerationType;

import jakarta.persistence.Id;

import lombok.AllArgsConstructor;

import lombok.Builder;

import lombok.Data;

import lombok.NoArgsConstructor;

@Entity

@Data

@Builder

@AllArgsConstructor

@NoArgsConstructor

public class Board extends BaseEntity {

@Id // primary key

@GeneratedValue(strategy = GenerationType.IDENTITY) // auto_increment

private Long bno;

@Column(length = 255, nullable = false) //칼럼의 저장 길이, null 허용 여부

private String title;

@Column(columnDefinition = "TEXT", nullable = false)

private String content;

@Column(length = 20, nullable = false)

private String writer;

}