spring boot 从入门到精通（ 二）通过实体类生成数据库表的方式

Posted 2021-01-09 beibidewomen

1. 需要添加的依赖

<dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-data-jpa</artifactId>
 </dependency>

  <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
  </dependency>

2. yml文件添加如下配置：

spring:
  datasource:
    driver-class-name: com.mysql.jdbc.Driver
    url: jdbc:mysql://localhost:3306/person
    username: root
    password: 123456
    type: com.alibaba.druid.pool.DruidDataSource
  jpa:
    hibernate:
      ddl-auto: update
      show-sql: true

3. 实体类

package com.example.springbootmybatis.entity;

import javax.persistence.Entity;
import javax.persistence.Id;

@Entity
public class User {
    @Id
    public int id;

    public String name;
    public String password;
    public int age;

    public int getId() {
        return id;
    }

    public void setId(int 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 int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }
    @Override
    public String toString() {
        return "User{" +
                "id=" + id +
                ", name=\'" + name + \'\\\'\' +
                ", password=\'" + password + \'\\\'\' +
                ", age=" + age +
                \'}\';
    }
}

4. 启动spring  boot 项目，即可生成对应的数据库表