goCode/cmd/bookstore/main.go

package main

import (
	_ "awesomeProject/internal/store"
	"awesomeProject/server"
	"awesomeProject/store/factory"
	"context"
	"fmt"
	"log"
	"os"
	"os/signal"
	"syscall"
	"time"
)

func sendOddNum(cn chan<- int) {
	number := 1
	for {
		cn <- number
		number += 2 // 生成下一个奇数
		fmt.Println("inside:", number)
		time.Sleep(1 * time.Second) // 每 1 秒发送一次
	}
}

func sendEvenNum(cn chan<- int) {
	number := 2
	for {
		cn <- number
		number += 2
		fmt.Println("inside:", number)
		time.Sleep(1 * time.Second)
	}
}

//func main() {
//	cn := make(chan int, 10)
//	go sendOddNum(cn)
//	go sendEvenNum(cn)
//
//	for {
//		num := <-cn
//		time.Sleep(5 * time.Second)
//		fmt.Println("Received:", num)
//	}
//}

func main() {
	s, err := factory.New("mem") // 创建图书数据存储模块实例
	if err != nil {
		panic(err)
	}
	srv := server.NewBookStoreServer(":8080", s) // 创建http服务实例
	errChan, err := srv.ListenAndServe()         // 运行http服务
	if err != nil {
		log.Println("web server start failed:", err)
		return
	}
	log.Println("web server start ok")
	c := make(chan os.Signal, 1)
	signal.Notify(c, syscall.SIGINT, syscall.SIGTERM)
	select { // 监视来自errChan以及c的事件
	case err = <-errChan:
		log.Println("web server run failed:", err)
		return
	case <-c:
		log.Println("bookstore program is exiting...")
		ctx, cf := context.WithTimeout(context.Background(), time.Second)
		defer cf()
		err = srv.Shutdown(ctx) // 优雅关闭http服务实例
	}
	if err != nil {
		log.Println("bookstore program exit error:", err)
		return
	}
	log.Println("bookstore program exit ok")
}