springboot通过jpa-Hibernate生成数据库表单

pom.xml

 <!-- springboot整合jpa -->
      <dependency>
          <groupId>org.springframework.boot</groupId>
          <artifactId>spring-boot-starter-data-jpa</artifactId>
      </dependency>
      <dependency>
           <groupId>mysql</groupId>
           <artifactId>mysql-connector-java</artifactId>
       </dependency>

全局配置文件`

spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
spring.datasource.username=root
spring.datasource.password=123456
spring.datasource.url=jdbc:mysql://localhost:3306/db5
#让控制器输出json字符串格式
spring.jackson.serialization.indent-output=true
spring.jpa.hibernate.ddl-auto=update
spring.jpa.show-sql=true
spring.jpa.hibernate.dialect=org.hibernate.dialect.MySQL5Dialect

pojo

package com.example.pojo;
import javax.persistence.*;
import javax.xml.crypto.Data;
@Entity
//@Table(name = "t_user1")
public class User {
  @Id
  @GeneratedValue(strategy = GenerationType.AUTO)
    private  int id;
//   @Column
    private String name;
    private String password;
    private String email;
    private String birthday;
  
    public int getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

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

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }

    public String getEmail() {
        return email;
    }

    public void setEmail(String email) {
        this.email = email;
    }

    public String getBirthday() {
        return birthday;
    }

    public void setBirthday(String birthday) {
        this.birthday = birthday;
    }





}

dao层

package com.example.dao;

import com.example.pojo.User;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.stereotype.Repository;

@Repository
public interface UserDao extends JpaRepository<User,Integer> {
}

在设置主键自动增长时开始因为把id定义为Integer类型导致生成数据库主键无法自动增长，环境时idea+mysql