Golang实现web发送钉钉消息通知

chromiumer · 2020-03-26 17:02:57 · 2980 次点击 · 预计阅读时间 5 分钟 · 大约8小时之前开始浏览

这是一个创建于 2020-03-26 17:02:57 的文章，其中的信息可能已经有所发展或是发生改变。

WX20200326-165904@2x.png 1.先看目录，一个入口文件，一个html，很简单。

bogon:dingding-notice admin$ ll
total 16
-rw-r--r--@ 1 admin  staff   1.9K  3 26 16:35 main.go
-rw-r--r--@ 1 admin  staff   1.9K  3 26 15:55 index.html

2.index.html页面，一个简单的textarea，和一个button。

<!doctype html>
<html lang="en">
  <head>
    <!-- Required meta tags -->
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">

    <!-- Bootstrap CSS -->
    <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@4.4.1/dist/css/bootstrap.min.css" integrity="sha384-Vkoo8x4CGsO3+Hhxv8T/Q5PaXtkKtu6ug5TOeNV6gBiFeWPGFN9MuhOf23Q9Ifjh" crossorigin="anonymous">

    <title>钉钉</title>
  </head>
  <body>

    <div class="container-md">

        <div class="row">

            <div class="col-md-6 offset-md-3">

                <h1 class="text-center">钉钉消息通知</h1>

                <form action="send" method="post" >

                <div class="input-group">
                  <div class="input-group-prepend">
                    <span class="input-group-text">消息</span>
                  </div>
                  <textarea class="form-control" aria-label="With textarea" name="content"></textarea>
                </div>
                </br>
                <button type="submit" class="btn btn-success" style="float:right" >发送</button>
                </form>

            </div>

     </div>
    </div>


    <!-- Optional JavaScript -->
    <!-- jQuery first, then Popper.js, then Bootstrap JS -->
    <script src="https://cdn.jsdelivr.net/npm/jquery@3.4.1/dist/jquery.slim.min.js" integrity="sha384-J6qa4849blE2+poT4WnyKhv5vZF5SrPo0iEjwBvKU7imGFAV0wwj1yYfoRSJoZ+n" crossorigin="anonymous"></script>
    <script src="https://cdn.jsdelivr.net/npm/popper.js@1.16.0/dist/umd/popper.min.js" integrity="sha384-Q6E9RHvbIyZFJoft+2mJbHaEWldlvI9IOYy5n3zV9zzTtmI3UksdQRVvoxMfooAo" crossorigin="anonymous"></script>
    <script src="https://cdn.jsdelivr.net/npm/bootstrap@4.4.1/dist/js/bootstrap.min.js" integrity="sha384-wfSDF2E50Y2D1uUdj0O3uMBJnjuUD4Ih7YwaYd1iqfktj0Uod8GCExl3Og8ifwB6" crossorigin="anonymous"></script>

</body>
</html>

3.看入口文件main.go

package main

import (
    "bytes"
    "encoding/json"
    "html/template"
    "io/ioutil"
    "log"
    "net/http"
    "unsafe"
)

//钉钉要求的json消息格式，复制粘贴属性。

type Contentinfo struct {
    Content string `json:"content"`
}
type IsAtAllinfo struct {
    IsAtAll bool `json:"isAtAll"`
}
type Contents struct {
    Msgtype string      `json:"msgtype"`
    Text    Contentinfo `json:"text"`
    At      IsAtAllinfo `json:"at"`
}

func checkErr(err error) {
    if err != nil {
        panic(err)
    }
}

func index(w http.ResponseWriter, r *http.Request) {

    log.Println(r.RemoteAddr, r.Host, r.Method, r.RequestURI)

    t, _ := template.ParseFiles("index.html")
    t.Execute(w, nil)
}

func sms_send(w http.ResponseWriter, r *http.Request) {

    r.ParseForm()

    c := &Contents{}  //实例化一个对象
    c.Msgtype = "text"
    c.Text.Content = r.FormValue("content")
    c.At.IsAtAll = true

    data, _ := json.Marshal(c)
    log.Println(string(data))

    reader := bytes.NewReader(data)
    url := "https://oapi.dingtalk.com/robot/send?access_token=xxxx"  //拼接参数，xxxx为自己钉钉群里的生成的机器人access_token
    request, err := http.NewRequest("POST", url, reader)

    checkErr(err)

    request.Header.Set("Content-Type", "application/json")
    client := http.Client{}

    resp, err := client.Do(request)  //发个请求

    checkErr(err)
    respBytes, err := ioutil.ReadAll(resp.Body)
    checkErr(err)

    str := (*string)(unsafe.Pointer(&respBytes))
    log.Println(*str)  //看看请求后返回啥，正确情况下是这样婶儿的：{"errcode":0,"errmsg":"ok"}
         //碰到个错误 {"errcode":310000,"errmsg":"ip xx.xx.xx.xx not in whitelist"} ，已经说明的很明白了，ip不在白名单，钉钉机器人里配置。

    log.Println(r.RemoteAddr, r.Host, r.Method, r.RequestURI, r.FormValue("content"))

    t, _ := template.ParseFiles("index.html")

    t.Execute(w, nil)
}

func main() {
    http.HandleFunc("/", index)   //打开页面
    http.HandleFunc("/send", sms_send)  //点发送button后，post数据。

    err := http.ListenAndServe(":80", nil)
    if err != nil {
        log.Fatal("ListenAndServe: ", err)
}

4.群里是这个样子滴 WX20200326-165656@2x.png