没有什么好讲的，直接贴代码，消息格式我用的markdown。

sendMsg.go：

package mainimport ("flag""fmt""github.com/goccy/go-json""github.com/tidwall/gjson""io/ioutil""net/http""strings"
)func main() {// paramsvar msg stringflag.StringVar(&msg, "msg", "null", "空消息")flag.Parse()type Params struct {Msgtype  string `json:"msgtype"`Markdown struct {Content string `json:"content"`} `json:"markdown"`}params := Params{Msgtype: "markdown",Markdown: struct {Content string `json:"content"`}{Content: msg,},}//fmt.Printf("%v\n", params)json_date, err := json.Marshal(&params)if err != nil {fmt.Sprintf("序列化失败：%s", err)fmt.Println()}//fmt.Printf("序列化后：%v\n", string(json_date))// POSTvar wx_send_url = "https://qyapi.weixin.qq.com/cgi-bin/webhook/send?key=xxxxxx"//fmt.Println(wx_send_url)response, err := http.Post(wx_send_url, "text/html;application/json", strings.NewReader(string(json_date)))if err != nil {fmt.Println(err)}// Get errcodebody, err := ioutil.ReadAll(response.Body)defer response.Body.Close()errcode := gjson.Get(string(body), "errcode").String()if errcode != "0" {fmt.Println("fail")//fmt.Println(json.Unmarshal([]byte(str), &body))} else {fmt.Println("success")}
}

交叉编译参数的设置：
win 编译生成Linux下的可执行文件：

go env -w CGO_ENABLED=0
go env -w GOOS=linux
go env -w GOARCH=amd64

编译完记得改回来：

go env -w CGO_ENABLED=0
go env -w GOOS=windows
go env -w GOARCH=amd64