百度UidGenerator在Springboot中的应用

百度UidGenerator在Springboot中的应用

1、在springboot中的基本运用

• 导入maven依赖

<!--百度UidGenerator-->
<!-- https://mvnrepository.com/artifact/com.chungkui/uid-generator-spring-boot-starter -->
  <dependency>
    <groupId>com.chungkui</groupId>
    <artifactId>uid-generator-spring-boot-starter</artifactId>
    <version>1.4-bate</version>
  </dependency>

• 编写service实现类

@Service
public class WorkerNodeEntityServiceImpl implements WorkerNodeEntityService {
​
    @Override
    public Long save(WorkerNodeEntity workerNodeEntity) {
        //可将workerNodeEntity对象添加到数据库
        return 1L;
    }
    
}

• 测试是否能生成id

@RestController
public class TestController {
​
    @Resource
    private UidGenerator uidGenerator;
  
    @GetMapping("/test")
    public String test() {
        long uid = uidGenerator.getUID();
        return uidGenerator.parseUID(uid);
    }
}

2、在mybatis-plus中整合UidGenerator，配置id自定义生成策略

• 创建CustomIdGenerator类实现IdentifierGenerator接口

@Component
public class CustomIdGenerator implements IdentifierGenerator {
​
    @Resource
    private UidGenerator uidGenerator;
​
    @Override
    public Number nextId(Object entity) {
        // 自定义ID生成逻辑，例如使用UUID生成ID
        return uidGenerator.getUID();
    }
}

• 在配置类中添加如下配置，添加自定义id生成器到mybatis-plus的全局配置中

@Configuration
public class MpConfig {
​
    @Resource
    private CustomIdGenerator customIdGenerator;
​
    @Bean
    public GlobalConfig globalConfig() {
        GlobalConfig globalConfig = new GlobalConfig();
        globalConfig.setMetaObjectHandler(new MyMetaObjectHandler()); // 设置自动填充策略
        globalConfig.setIdentifierGenerator(customIdGenerator);// 设置自定义ID生成器
        return globalConfig;
    }
​
}

• 在实体类中的id属性上添加TableId注解

@Data
@EqualsAndHashCode(callSuper = false)
@ApiModel(value="StudentInfo对象", description="")
public class StudentInfo extends BaseEntity {
​
    private static final long serialVersionUID = 1L;
​
    @ApiModelProperty(value = "student_id")
    @TableId(value = "student_id", type = IdType.NONE)
    private Long studentId;
​
    @ApiModelProperty(value = "年龄")
    private Integer age;
​
    @ApiModelProperty(value = "姓名")
    private String name;
​
}