仿微信运动排行榜的定时任务练习

首先，我们先看一下微信运动排行榜的页面以及大致的工作原理。

timg.jpg

微信排行榜的每天定时刷新就是定时任务最常用的场景，像我们的微信运动每天晚上大约都是在10点多定时刷新数据。

下面，我将写一个模仿这样的定时任务的例子。

目录结构

目录结构（定时任务）.png

在Config包下新建QuartzConfig,SporterJob,SportJobFactory类

• QuartzConfig类

public class QuartzConfig {
    @Autowired
    private SpringJobFactory springJobFactory;

    @Bean
    public SchedulerFactoryBean schedulerFactoryBean(){
        SchedulerFactoryBean schedulerFactoryBean = new SchedulerFactoryBean();
        schedulerFactoryBean.setJobFactory(springJobFactory);
        return schedulerFactoryBean;
    }

    @Bean
    public Scheduler scheduler() {
        return schedulerFactoryBean().getScheduler();
    }
}

• SporterJob类

@Component
public class SporterJob {

    @Resource
    private UpdateService updateService;

    @Scheduled(cron = "0 26 22 * * ?")
    public void updateTodayWalks() throws Exception {
        updateService.updateWalks();
    }
}

corn里设置刷新时间，corn的用法见我之前的文章。

• SporterJobFactory类

@Component
public class SpringJobFactory extends AdaptableJobFactory {
    @Autowired
    private AutowireCapableBeanFactory capableBeanFactory;

    @Override
    protected Object createJobInstance(TriggerFiredBundle bundle) throws Exception {
        Object jobInstance = super.createJobInstance(bundle);
        capableBeanFactory.autowireBean(jobInstance);
        return jobInstance;
    }
}

实体类

• 运动者（Walker）

@Entity
@Data
public class Walker implements Serializable {
    @Id
    @GeneratedValue
    private Integer id;
    private String account;
    private String password;
    private String nickname;
    private String avatar;


    @OneToMany(cascade = CascadeType.ALL,fetch = FetchType.EAGER)
    @JoinColumn(name = "account",referencedColumnName = "account")
    private List sportDataList;

    public Walker(String account, String password, String nickname, String avatar, List sportDataList) {
        this.account = account;
        this.password = password;
        this.nickname = nickname;
        this.avatar = avatar;
        this.sportDataList = sportDataList;
    }
}

• 运动数据（SportData）

@Entity
@Data
public class SportData implements Serializable {
    @Id
    @GeneratedValue
    private Integer id;
    private Integer steps;
    private String evaluate;
    private Date date;

    public SportData(Integer steps, String evaluate, Date date) {
        this.steps = steps;
        this.evaluate = evaluate;
        this.date = date;
    }
}

• UpdateService类

public interface UpdateService {
    void updateWalks();
}

• SportDataRepositry接口

public interface SportDataRepositry extends JpaRepository {
}

• 实现类（UpdateServiceImpl）

@Service
public class UpdateServiceImpl implements UpdateService {
    @Resource
    private SportDataRepositry sportDataRepositry;

    @Override
    public void updateWalks() {
        List list = sportDataRepositry.findAll();
        Random random = new Random();
        for (int i=0;i 

页面代码

• 登录界面

    
    
    
    
    



    

        
用户登入
        
        账号
            账号为空
        密码
            密码为空
        
    

• 运动数据界面

    
    
    
    



    

        

        
        

            
步数排行榜
        
        

            
            
            
                
            
        
    


    


    
    

        

            
            

                

                

                    

                
            
        
    
    


    

数据库截图

SportData.png

Walker.png

最终展示

login.png

刷新前数据.png

刷新后数据.png