golang 阿里雲傳送簡訊

寫的比較粗糙，有錯誤的地方希望指正，不會英語，部分變數用拼音命名，打擾了

package sendmsgimport (    "bytes"    "crypto/hmac"    "crypto/sha1"    "encoding/base64"    "encoding/json"    "fmt"    "io/ioutil"    "net/http"    "net/url"    "strconv"    "strings"    "time")const (    ak          = "xxxxxxx"    sk          = "xxxxxxx"    requestURL  = "http://dysmsapi.aliyuncs.com/?Signature="    actionStr   = "&Action=SendSms&Format=JSON&OutId=123"    dateStr     = "&Version=2017-05-25"    msgTemplete = "&SignatureVersion=1.0&TemplateCode=模板ID&TemplateParam="    singStr     = "&SignatureMethod=HMAC-SHA1&SignatureNonce="    singName    = "&RegionId=cn-hangzhou&SignName="    lianJIe     = "&"    signLinaJie = "GET&%2F&")//SimpleMessage ...type SimpleMessage struct {    Message string `json:"Message"`    Code    string `json:"Code"`}//MessageContent ...type MessageContent struct {    Code string `json:"code"`}//SendMsg 傳送簡訊func SendMsg(phone, msgJSON string) bool {        body := "send msg"    content := url.QueryEscape(msgJSON)    signString := setQueryStr(phone, content, “skw493jei3j34ij34i”)    singstr := signLinaJie + url.QueryEscape(signString)    sign := hmac4Go(singstr, sk+lianJIe)    client := &http.Client{}    var req *http.Request    req, err = http.NewRequest("GET", requestURL+url.QueryEscape(sign)+lianJIe+signString, strings.NewReader(body))    var resp *http.Response    resp, err = client.Do(req)    if err != nil {        fmt.Println("http get error.", err)        return false    }    fmt.Println(resp.Body)    defer resp.Body.Close()    var bodys []byte    bodys, err = ioutil.ReadAll(resp.Body)    if err != nil {        fmt.Println("http  readAll body error ", err)        return false    }    fmt.Println(string(bodys))    var msg SimpleMessage    if len(bodys) > 0 {        err = json.Unmarshal(bodys, &msg)        if err != nil {            fmt.Println("http  json body error ", err)            return false        }        fmt.Println(msg)    }    if msg.Code == "OK" {        return true    }    return false}//setQueryStr 設定查詢請求func setQueryStr(phone, content string, id int64) string {    var cstZone = time.FixedZone("GMT", 0)    keyTime := time.Now().In(cstZone).Format("2006-01-02T15:04:05Z")    singNameS := url.QueryEscape("SignName")    buf := bytes.Buffer{}    buf.WriteString("AccessKeyId=")    buf.WriteString(ak)    buf.WriteString(actionStr)    buf.WriteString("&PhoneNumbers=")    buf.WriteString(phone + singName + singNameS + singStr)    buf.WriteString(strconv.FormatInt(id, 10) + msgTemplete + content)    buf.WriteString("&Timestamp=" + url.QueryEscape(keyTime) + dateStr)    signString := buf.String()    return signString}//hmac4Go 加密func hmac4Go(name, sk string) string {    mac := hmac.New(sha1.New, []byte(sk))    mac.Write([]byte(name))    encodeString := base64.StdEncoding.EncodeToString(mac.Sum(nil))    return encodeString}