Web服务器和同时收听内容

Question

我的代码从终端读取输入，并将这些值发送到 nats ，而它需要具有http端点。

它单独起作用，但是当我将它们全部合并时，它不会从 nats 中读取。如果您能指出正确的方向，我将不胜感激。

package main

import (
    "bufio"
    "fmt"
    nats "github.com/nats-io/nats.go"
    "html/template"
    "log"
    "net/http"
    "os"
)


func main() {
    wd, err := os.Getwd()
    if err != nil {
        log.Fatal(err)
    }

    tmpl := template.Must(template.ParseFiles(wd + "/template/main.html"))
    http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
        data := TodoPageData{
            PageTitle: "Demo",          
        }
        tmpl.Execute(w, data)
    })
    http.ListenAndServe(":8081", nil)

    type message struct {
        content string
    }
    var messages []message

    nc, err := nats.Connect(
        nats.DefaultURL,
    )

    if err != nil {
        log.Fatal(err)
    }
    defer nc.Close()

    // Subscribe
    if _, err := nc.Subscribe("updates", func(m *nats.Msg) {
        fmt.Printf("Received a message: %s\n", string(m.Data))
    }); err != nil {
        log.Fatal(err)
    }

    // io r/w
    scanner := bufio.NewScanner(os.Stdin)
    for scanner.Scan() {
        if err := nc.Publish("updates", []byte(scanner.Text())); err != nil {
            log.Fatal(err)
        }
        messages = append(messages, message{scanner.Text()})
        for _, message := range messages {
            fmt.Println(message.content)
        }
    }

    if scanner.Err() != nil {
        // handle error.
    }
}

Answer 1

const theNumOne = [ { date: "monday", time: ["06.00", "07.00", "08.00", "09.00", "10.00"] }, { date: "tuesday", time: ["06.00", "07.00", "08.00", "09.00", "10.00"] }, { date: "wednesday", time: ["06.00", "07.00", "08.00", "09.00", "10.00"] } ]; const pickOne = [ { date: "monday", time: ["09.00", "10.00"] }, { date: "wednesday", time: ["06.00", "07.00", "08.00", "09.00"] } ]; // get theNumOne date and time, pickOne date and time, this function iterates the theNumOne array get's the // first record, iterates the pickOne array and founds it's date key match, // sends the theNumOne date and time, and the matched record from pickOne, to remove the unwanted time const iterateArray = (theNumOne, pickOne) => { theNumOne.map((pointer, index) => { const extractedRecord = pickOne.find( key => key.date === pointer.date ); purifyingArray(theNumOne[index], extractedRecord); }) }; const purifyingArray = (theNumOne, extractedRecord) => { if(extractedRecord !== undefined) { extractedRecord.time.map((pointer) => { let index = theNumOne.time.indexOf(pointer); if(index > -1) { theNumOne.time.splice(index,1); } }); } console.log(theNumOne); }; iterateArray(theNumOne, pickOne); 是阻止呼叫。在新的goroutine上启动它：

http.ListenAndServe