springcloud mysql操作的最佳实践

springcloud mysql配置

datasource:
    driver-class-name: com.mysql.jdbc.Driver
    username: root
    password: 123456
    url: jdbc:mysql://***/dbname?characterEncoding=utf-8&useSSL=false  //防止乱码

mysql时间字段在对象save时自动更新配置

updateTime数据库mysql5.7设置为自动更新

create table `product_category` (
    `category_id` int not null auto_increment,
    `category_name` varchar(64) not null comment '类目名字',
    `category_type` int not null comment '类目编号',
    `create_time` timestamp not null default current_timestamp comment '创建时间',
    `update_time` timestamp not null default current_timestamp on update current_timestamp comment '修改时间',
    primary key (`category_id`)
);

@Entity
@DynamicUpdate   //不加注解，对象save时updateTime不会自动更新
@Data
public class ProductCategory {

    /** 类目id. */
    @Id
    @GeneratedValue
    private Integer categoryId;

    /** 类目名字. */
    private String categoryName;

    /** 类目编号. */
    private Integer categoryType;

    private Date createTime;

    private Date updateTime;

    public ProductCategory() {
    }

    public ProductCategory(String categoryName, Integer categoryType) {
        this.categoryName = categoryName;
        this.categoryType = categoryType;
    }
}