使用 MySQL 创建表 - Hibernate-编程学习网

要创建表，您需要将以下行插入到 application.properties -

spring.jpa.hibernate.ddl-auto=update

这里，Hibernate 将自动创建表 demo88。 application.properties代码如下 -

spring.datasource.platform=mysql
spring.jpa.database-platform=org.hibernate.dialect.MySQL5InnoDBDialect
spring.jpa.hibernate.ddl-auto=update
server.port=8191

spring.datasource.driverClassName=com.mysql.jdbc.Driver
spring.datasource.url=jdbc:mysql://localhost:3306/sampledatabase
spring.datasource.username=root
spring.datasource.password=123456

demo88实体类创建表格列如下 -

示例

package com.automaticallytablecreation;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.Table;

@Entity
@Table
public class demo88 {
   @Id
   private int id;
   @Column(name="name")
   private String name;
}

主类代码如下 -

示例

package com.automaticallytablecreation;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class AutomaticTableApplication {
   public static void main(String[] args) {
      SpringApplication.run(AutomaticTableApplication.class, args);
   }
}

现在右键单击主类，然后单击“作为 Java 应用程序运行”菜单。应用程序将运行并创建表。

这将产生以下输出 -

Output

为了验证，让我们显示表格 -

mysql> show create table demo88;

这将产生以下输出 -

输出

+--------+------------------------------------------------------------+| Table  | Create Table                                               |    
+--------+------------------------------------------------------------+| demo88 | CREATE TABLE `demo88` (
   `id` int NOT NULL,   `name` varchar(255) DEFAULT NULL,
   PRIMARY KEY (`id`)) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci     |
+--------+-------------------------------------------------------------+1 row in set (0.03 sec)