feat(Go-StudyExample):2020/12/17: 新增cronTab与go cron的定时任务使用示例

example/cron/Jasonlvhit_test.go

@@ -0,0 +1,96 @@
+/*
+ *  @Author : huangzj
+ *  @Time : 2020/12/16 17:23
+ *  @Description：
+ */
+
+package cron
+
+import (
+	"fmt"
+	"github.com/jasonlvhit/gocron"
+	"testing"
+	"time"
+)
+
+func TestGoCron(t *testing.T) {
+	s := gocron.NewScheduler()
+	_ = s.Every(1).Seconds().Do(task)
+	_ = s.Every(4).Seconds().Do(superWang)
+
+	sc := s.Start() // keep the channel
+	go test(s, sc)  // wait
+	<-sc            // it will happens if the channel is closed
+}
+
+func task() {
+	fmt.Println("I am runnning task.", time.Now())
+}
+func superWang() {
+	fmt.Println("I am runnning superWang.", time.Now())
+}
+
+func test(s *gocron.Scheduler, sc chan bool) {
+	time.Sleep(8 * time.Second)
+	s.Remove(task) //remove task
+	time.Sleep(8 * time.Second)
+	s.Clear()
+	fmt.Println("All task removed")
+	close(sc) // close the channel
+}
+
+func TestFunc(t *testing.T) {
+	// Do jobs without params
+	_ = gocron.Every(1).Second().Do(task)
+	_ = gocron.Every(2).Seconds().Do(task)
+	_ = gocron.Every(1).Minute().Do(task)
+	_ = gocron.Every(2).Minutes().Do(task)
+	_ = gocron.Every(1).Hour().Do(task)
+	_ = gocron.Every(2).Hours().Do(task)
+	_ = gocron.Every(1).Day().Do(task)
+	_ = gocron.Every(2).Days().Do(task)
+	_ = gocron.Every(1).Week().Do(task)
+	_ = gocron.Every(2).Weeks().Do(task)
+
+	// Do jobs with params
+	_ = gocron.Every(1).Second().Do(taskWithParams, 1, "hello")
+
+	// Do jobs on specific weekday
+	_ = gocron.Every(1).Monday().Do(task)
+	_ = gocron.Every(1).Thursday().Do(task)
+
+	// Do a job at a specific time - 'hour:min:sec' - seconds optional
+	_ = gocron.Every(1).Day().At("10:30").Do(task)
+	_ = gocron.Every(1).Monday().At("18:30").Do(task)
+	_ = gocron.Every(1).Tuesday().At("18:30:59").Do(task)
+
+	// Begin job immediately upon start
+	_ = gocron.Every(1).Hour().From(gocron.NextTick()).Do(task)
+
+	// Begin job at a specific date/time
+	timed := time.Date(2019, time.November, 10, 15, 0, 0, 0, time.Local)
+	_ = gocron.Every(1).Hour().From(&timed).Do(task)
+
+	// NextRun gets the next running time
+	_, time := gocron.NextRun()
+	fmt.Println(time)
+
+	// Remove a specific job
+	gocron.Remove(task)
+
+	// Clear all scheduled jobs
+	gocron.Clear()
+
+	// Start all the pending jobs
+	<-gocron.Start()
+
+	// also, you can create a new scheduler
+	// to run two schedulers concurrently
+	s := gocron.NewScheduler()
+	_ = s.Every(3).Seconds().Do(task)
+	<-s.Start()
+}
+
+func taskWithParams(a int, b string) {
+	fmt.Println(a, b)
+}