Golang实现web发送钉钉消息通知

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![WX20200326-165904@2x.png](https://static.studygolang.com/200326/5845fe0f1784757017c0ec5e9d6d8acb.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](https://static.studygolang.com/200326/c8a2caf55bad0a6e659bb018b4321b87.png) 新手入门,在项目中学习。。。🐝

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