以 map[string]interface{} 传参调用

func post(api string, params map[string]interface{}) string {
    var values []string
    for k, v := range params {
        switch v.(type) {
        case string:
            values = append(values, fmt.Sprintf("%s=%s", k, v))
        case int:
            values = append(values, fmt.Sprintf("%s=%d", k, v))
        default:
            continue
        }
    }
    resp, err := http.Post(api, "application/x-www-form-urlencoded", strings.NewReader(strings.Join(values, "&")))
    if err != nil || resp.StatusCode != 200 {
        fmt.Println(err.Error())
        return ""
    }
    contentBytes, err := ioutil.ReadAll(resp.Body)
    if err != nil {
        fmt.Println(err.Error())
        return ""
    }
    return string(contentBytes)
}

json格式post

func postJSON(url string, params map[string]interface{}) string {
    data, err := json.Marshal(params)
    if err != nil {
        fmt.Println(err.Error())
        return ""
    }
    req, err := http.NewRequest("POST", url, bytes.NewReader(data))
    if err != nil {
        fmt.Println(err.Error())
        return ""
    }
    req.Header.Set("Content-Type", "application/json")
    client := http.Client{}
    resp, err := client.Do(req)
    if err != nil || resp.StatusCode != 200 {
        fmt.Println(err.Error())
        return ""
    }
    respBytes, err := ioutil.ReadAll(resp.Body)
    if err != nil {
        fmt.Println(err.Error())
        return ""
    }
    return string(respBytes)
}