第一步創(chuàng)建springboot項目，jpa，mysql,
代碼如下:
application.yml

spring:
  datasource:
    url: jdbc:mysql://127.0.0.1:3306/springboot_test
    username: root
    password: 514730
    driver-class-name: com.mysql.jdbc.Driver
  jpa:
    hibernate:
#     更新或者創(chuàng)建數(shù)據(jù)表結(jié)構(gòu)
      ddl-auto: update
#    控制臺顯示SQL
    show-sql: true

實體類

import javax.persistence.*;

@Entity
@Table(name = "person")
public class Person {
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private  Long id;

    @Column(length =50,name = "name")
    private  String  name;

    private  String email;

    private  String  gender;

    private  String  address;
}

運行springboot主配置文件，來到數(shù)據(jù)庫界面管理軟件。發(fā)現(xiàn)我們的"person"表 自動創(chuàng)建好了

圖片.png

記得給主鍵ID加上:@GeneratedValue(strategy = GenerationType.IDENTITY)