Finish the cron things.

code/rest/footprint_service.go

@@ -4,6 +4,7 @@ import (
 	"encoding/json"
 	"github.com/eyebluecn/tank/code/config"
 	"github.com/eyebluecn/tank/code/tool/util"
+	"github.com/robfig/cron"
 	"net/http"
 	"time"
 )
@@ -88,3 +89,31 @@ func (this *FootprintService) Trace(writer http.ResponseWriter, request *http.Re
 	this.logger.Info("Ip:%s Host:%s Uri:%s Params:%s Cost:%d", footprint.Ip, footprint.Host, footprint.Uri, paramsString, int64(duration/time.Millisecond))
 
 }
+
+//系统启动，数据库配置完毕后会调用该方法
+func (this *FootprintService) Bootstrap() {
+
+	//每日00:10 删除8日之前的访问数据
+	expression := "0 10 0 * * ?"
+	cronJob := cron.New()
+	err := cronJob.AddFunc(expression, this.cleanOldData)
+	util.PanicError(err)
+	cronJob.Start()
+	this.logger.Info("[cron job] 每日00:10 删除8日之前的访问数据")
+
+	//立即执行一次数据清洗任务
+	go util.SafeMethod(this.cleanOldData)
+
+}
+
+//定期删除8日前的数据。
+func (this *FootprintService) cleanOldData() {
+
+	day8Ago := time.Now()
+	day8Ago = day8Ago.AddDate(0, 0, -8)
+	day8Ago = util.FirstSecondOfDay(day8Ago)
+
+	this.logger.Info("删除%s之前的访问数据", util.ConvertTimeToDateTimeString(day8Ago))
+
+	this.footprintDao.DeleteByCreateTimeBefore(day8Ago)
+}