WeChat applet development realizes the home page pop-up box activity guidance function

CREATE TABLE `sys_config` (
  `id` bigint(20) NOT NULL AUTO_INCREMENT COMMENT 'Primary key',
  `configName` varchar(255) DEFAULT NULL COMMENT 'Configuration name',
  `configInfo` longtext COMMENT 'Configuration information',
  PRIMARY KEY (`id`)
)ENGINE=MyISAM DEFAULT CHARSET=utf8;

public class SysConfig extends CommonBean {
 
    public static String NAME_SECKILL="config_seckill"; //Seckill configuration private Long id;
    private String configName; // Configuration name private String configInfo; // Configuration information public Long getId() {
        return id;
    }
 
    public void setId(Long id) {
        this.id = id;
    }
 
    public String getConfigName() {
        return configName;
    }
 
    public void setConfigName(String configName) {
        this.configName = configName;
    }
 
    public String getConfigInfo() {
        return configInfo;
    }
 
    public void setConfigInfo(String configInfo) {
        this.configInfo = configInfo;
    }
}

@Service("sysConfigService")
public class SysConfigServiceImpl<T> implements SysConfigService<T> {
 
    @Autowired
    private SysConfigDao sysConfigDao;
    // Update configuration public int update(SysConfig sysConfig){
        return sysConfigDao.update(sysConfig);
    }
 
    // Get configuration information based on configuration name @Override
    public T getConfigByName(Class t, String configname) {
        SysConfig sysConfig = sysConfigDao.getConfigByName(configname);
        if (sysConfig == null) {
            return null;
        }
        T result = (T) new Gson().fromJson(sysConfig.getConfigInfo(), t);
        return result;
    }
 
    // Save configuration public int saveConfig(T t, String configname) {
        SysConfig sysConfig = new SysConfig();
        sysConfig.setConfigName(configname);
        Gson gson = new GsonBuilder().setDateFormat("yyyy-MM-dd HH:mm:ss").create();
        String json = gson.toJson(t);
        sysConfig.setConfigInfo(json);
        // Determine whether it has been added, if yes, update, if no, add if (sysConfigDao.getConfigByName(configname) == null) {
            int result = sysConfigDao.add(sysConfig);
            return result;
        } else {
            int result = sysConfigDao.update(sysConfig);
            return result;
        }
    }
 
}

             getSysConfigSecKill() {
               app.$post(app.API_SysConfigSecKill, {}, (res) => {
                 if (res.statusCode == 0) {
                   let data = res.data;
                   if (data.openIndexPopWindow) {
                     this.setData({
                       seckillispopwindow: true,
                       seckillurl: data.popWindowPic
                     })
                   }
                 }
               })

             },

/*Activity pop-up window*/
.seckill{position: fixed;width:325px;height:164px;top:100px;right: 20px;}
.seckill-close{position: fixed;width:32px;height:32px;top:250px;right:160px;}

<!--Activity pop-up box-->
<view wx:if="{{seckillispopwindow}}">
  <view>
    <image bindtap='seckill_go' class="seckill" src="{{seckillurl}}"></image>
    <image bindtap='seckill_close' class="seckill-close" src="../../images/close.png"></image>
  </view>
</view>