《十次方》07、搭建基础工程以及标签的CRUD

1、模块搭建
（1）、搭建基础微服务模块tensquare_base , pom.xml引入依赖

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>
        <dependency>
            <groupId>com.tensquare</groupId>
            <artifactId>tensquare_common</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>
    </dependencies>

（2）、创建启动类

@SpringBootApplication
public class BaseApplication {

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

    @Bean
    public IdWorker createIdWorker() {

        return new IdWorker(1, 1);
    }
}

（3）、在resources下创建application.y

server:
  port: 9001
spring:
  application:
    name: tensquare-base #给微服务起名,使用中划线
  datasource:
    driver-class-name: com.mysql.jdbc.Driver
    url: jdbc:mysql://192.168.17.128:3306/tensquare_base?characterEncoding=UTF-8
    username: root
    password: 123456
  jpa:
    database: mysql
    show-sql: true

2、添加标签
实体类

public class Label implements Serializable{

    @Id
    private String id;//
    private String labelname;//标签名称
    private String state;//状态
    private Long count;//使用数量
    private Long fans;//关注数
    private String recommend;//是否推荐

控制层

    //根据id查询
    @RequestMapping(value = "{id}", method = RequestMethod.GET)
    public Result findById(@PathVariable String id) {
        Label label = labelService.findById(id);

        return new Result(true, StatusCode.OK, "查询成功", label);
    }

业务层

    public Label findById(String id) {
        return labelDao.findById(id).get();
    }

持久层

public interface LabelDao extends JpaRepository<Label, String>,
        JpaSpecificationExecutor<Label> {
        }

这里就和大家写一个查询吧！其他的看大家的了。

十次方文集：https://www.jianshu.com/nb/32298744