短信服务-腾讯云sms短信API服务注册、申请、开发工具，开发、发布流程记录

detail:https://cloud.tencent.com/document/product/378/3629

第一开发前的准备工作

Step 1:申请接入短信服务

【腾讯科技】您的QQ登录验证码是1234，5分钟内有效。

对于上述示例，发送短信前，需完成以下操作：

申请【签名内容】为腾讯科技的短信签名。
申请【短信内容】为

您的QQ登录验证码是{1}，{2}分钟内有效。

的短信正文模板，其中{1}和{2}是实际下发短信时自定义的参数。

detail：https://cloud.tencent.com/document/product/382/13299

Step 2:创建短信签名

驳回原因：签名类型为公司名，请使用与上传的营业执照（或组织机构代码证）上一致的公司全称或简称申请签名。如有其他疑问可联系腾讯云短信技术支持（QQ：3012203387）。

第1次选的签名类型为公司，签名需要和营业执照上的公司名称一样。

第2次改为：

签名类型：公众号

签名：公众号名称
 

Step 3:创建短信内容模板

驳回原因：短信内容模版不够详细，请完善内容5 后重新提交。如有疑问可联系腾讯云短信技术支持（QQ：3012203387）。

创建短信签名

https://cloud.tencent.com/document/product/382/37794

正文模板

https://cloud.tencent.com/document/product/382/39031

step 3：创建应用，获取SDKAppID

https://console.cloud.tencent.com/smsv2/app-manage

step 4：创建SecretId和SecretKey

code 

SecretId：用于标识 API 调用者身份，可以简单类比为用户名。
SecretKey：用于验证 API 调用者的身份，可以简单类比为密码。

SecretId和SecretKey的获取

https://console.cloud.tencent.com/cam/capi

用管理员 微信 雾**花 登录

访问管理->API密钥管理->新建密钥，获取

 999999999999999999

https://cloud.tencent.com/document/sdk/.NET

2.登录流程

step 1：打开腾讯云平台首页

https://cloud.tencent.com/

step 2：点击登录，进入登录页面

step 3：用小程序公众号方式登录

选择“其他登录方式”

step 4:用微信服务号绑定的管理员 微信登录

1。先用 微信号  雾**花 

2.然后选择 小程序 “wjl助手”

code

SMS相关接口API：https://cloud.tencent.com/document/product/382/52077

SMS接口业务逻辑相关的错误码：https://cloud.tencent.com/document/api/382/55981#6.-.E9.94.99.E8.AF.AF.E7.A0.81

4.API（程序开发者使用）

4.1 C# 调用腾讯云的短信发送服务API发送验证码

参数实体类：SendCode

namespace ConsoleApp3
{
    /// <summary>
    /// 参数类
    /// </summary>
    class SendCode
    {
        public string Ext { get; set; }
        public string Extend { get; set; }
        public string[] Params { get; set; }
        public string Sig { get; set; }
        public string Sign { get; set; }
        public Phone Tel { get; set; }
        public string Time { get; set; }
        public string Tpl_id { get; set; }
    }
    /// <summary>
    /// 电话参数
    /// </summary>
    class Phone
    {
        public string Mobile { get; set; }
        public string Nationcode { get; set; }
    }
}

静态方法类：StaticClass

using System;
using System.IO;
using System.Net;
using System.Security.Cryptography;
using System.Text;
 
namespace ConsoleApp3
{
    public static class StaticClass
    {
        /// <summary>
        /// 返回指定个数的随机数
        /// </summary>
        /// <param name="length">个数</param>
        /// <returns>随机数</returns>
        public static string GenerateRandomCode(int length)
        {
            var result = new StringBuilder();
            for (var i = 0; i < length; i++)
            {
                var r = new Random(Guid.NewGuid().GetHashCode());
                result.Append(r.Next(0, 10));
            }
            return result.ToString();
        }
        /// <summary>
        /// 获取时间戳格式
        /// </summary>
        /// <param name="flg">多少位的时间戳</param>
        /// <returns>时间戳</returns>
        public static long GetTimeStamp(int flg)
        {
            long time = (DateTime.Now.ToUniversalTime().Ticks - 621355968000000000) / 10000000;
            switch (flg)
            {
                case 10:
                    time = (DateTime.Now.ToUniversalTime().Ticks - 621355968000000000) / 10000000;
                    break;
                case 13:
                    DateTime startTime = TimeZone.CurrentTimeZone.ToLocalTime(new DateTime(1970, 1, 1, 0, 0, 0, 0));
                    time = (DateTime.Now.Ticks - startTime.Ticks) / 10000;
                    break;
            }
            return time;
        }
        /// <summary>
        /// Sha256加密算法
        /// </summary>
        /// <param name="data">加密的内容</param>
        /// <returns>加密后的数据</returns>
        public static string Sha256(string data)
        {
            byte[] bytes = Encoding.UTF8.GetBytes(data);
            StringBuilder builder = new StringBuilder();
            for (int i = 0; i < SHA256.Create().ComputeHash(bytes).Length; i++)
            {
                builder.Append(SHA256.Create().ComputeHash(bytes)[i].ToString("X2"));
            }
            return builder.ToString();
        }
        /// <summary>
        /// post请求
        /// </summary>
        /// <param name="url">地址</param>
        /// <param name="postdata">参数</param>
        /// <returns>返回内容</returns>
        public static string HttpPost(string url, string postdata)
        {
            string result = "";
            HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url);
            req.Method = "POST";
            req.ContentType = "application/x-www-form-urlencoded";
            req.Referer = null;
            req.AllowAutoRedirect = true;
            req.Accept = "*/*";
 
            byte[] data = Encoding.UTF8.GetBytes(postdata);
            using (Stream reqStream = req.GetRequestStream())
            {
                reqStream.Write(data, 0, data.Length);
            }
            try
            {
                HttpWebResponse resp = (HttpWebResponse)req.GetResponse();
                using (StreamReader reader = new StreamReader(resp.GetResponseStream()))
                {
                    result = reader.ReadToEnd();
                }
            }
            catch (Exception ex)
            {
                throw ex;
            }
            return result;
        }
    }
}

程序主入口：

using Newtonsoft.Json;
using System;
 
namespace ConsoleApp3
{
    class Program
    {
        static void Main(string[] args)
        {
            string mobile = "***********";//自己要验证收短信的手机号
            string appkey = "*****************";//自己在腾讯云上申请的App Key
            string random = StaticClass.GenerateRandomCode(10);
            string time = StaticClass.GetTimeStamp(10).ToString();
            string sig = StaticClass.Sha256($"appkey={appkey}&random={random}&time={time}&mobile={mobile}");
            var postData = new SendCode
            {
                Ext = "",
                Extend = "",
                Params = new string[] { "5566" },
                Sig = sig,
                Sign = "***********",//自己审核通过的短信签名
                Tel = new Phone { Mobile = "**********",/*自己要验证收短信的手机号*/ Nationcode = "86"/*国家标识*/ },
                Time = time,
                Tpl_id = "************"//自己审核通过的短信模版id
            };
            string url = $"https://yun.tim.qq.com/v5/tlssmssvr/sendsms?sdkappid=******&random={random}";//sdkappid=自己在腾讯云上申请的SDK AppID
            string postDataStr = JsonConvert.SerializeObject(postData).ToLower();
            string result = StaticClass.HttpPost(url, postDataStr);
            Console.WriteLine(result);
            Console.ReadKey();
        }
    }
}

step 1:生成签名方法 v3

签名方法 v3 过程：https://cloud.tencent.com/document/api/213/30654

签名方法 v3 代码：https://cloud.tencent.com/document/api/213/30654#DotNet

using System;
using System.Collections.Generic;
using System.Security.Cryptography;
using System.Text;

public class Application
{
    public static string SHA256Hex(string s)
    {
        using (SHA256 algo = SHA256.Create())
        {
            byte[] hashbytes = algo.ComputeHash(Encoding.UTF8.GetBytes(s));
            StringBuilder builder = new StringBuilder();
            for (int i = 0; i < hashbytes.Length; ++i)
            {
                builder.Append(hashbytes[i].ToString("x2"));
            }
            return builder.ToString();
        }
    }
    public static byte[] HmacSHA256(byte[] key, byte[] msg)
    {
        using (HMACSHA256 mac = new HMACSHA256(key))
        {
            return mac.ComputeHash(msg);
        }
    }

    public static Dictionary<String, String> BuildHeaders(string secretid,
        string secretkey, string service, string endpoint, string region,
        string action, string version, DateTime date, string requestPayload)
    {
        string datestr = date.ToString("yyyy-MM-dd");
        DateTime startTime = new DateTime(1970, 1, 1, 0, 0, 0, 0, DateTimeKind.Utc);
        long requestTimestamp = (long)Math.Round((date - startTime).TotalMilliseconds, MidpointRounding.AwayFromZero) / 1000;
        // ************* 步骤 1：拼接规范请求串 *************
        string algorithm = "TC3-HMAC-SHA256";
        string httpRequestMethod = "POST";
        string canonicalUri = "/";
        string canonicalQueryString = "";
        string contentType = "application/json";
        string canonicalHeaders = "content-type:" + contentType + "; charset=utf-8\n" + "host:" + endpoint + "\n";
        string signedHeaders = "content-type;host";
        string hashedRequestPayload = SHA256Hex(requestPayload);
        string canonicalRequest = httpRequestMethod + "\n"
            + canonicalUri + "\n"
            + canonicalQueryString + "\n"
            + canonicalHeaders + "\n"
            + signedHeaders + "\n"
            + hashedRequestPayload;
        Console.WriteLine(canonicalRequest);
        Console.WriteLine("----------------------------------");

        // ************* 步骤 2：拼接待签名字符串 *************
        string credentialScope = datestr + "/" + service + "/" + "tc3_request";
        string hashedCanonicalRequest = SHA256Hex(canonicalRequest);
        string stringToSign = algorithm + "\n" + requestTimestamp.ToString() + "\n" + credentialScope + "\n" + hashedCanonicalRequest;
        Console.WriteLine(stringToSign);
        Console.WriteLine("----------------------------------");

        // ************* 步骤 3：计算签名 *************
        byte[] tc3SecretKey = Encoding.UTF8.GetBytes("TC3" + secretkey);
        byte[] secretDate = HmacSHA256(tc3SecretKey, Encoding.UTF8.GetBytes(datestr));
        byte[] secretService = HmacSHA256(secretDate, Encoding.UTF8.GetBytes(service));
        byte[] secretSigning = HmacSHA256(secretService, Encoding.UTF8.GetBytes("tc3_request"));
        byte[] signatureBytes = HmacSHA256(secretSigning, Encoding.UTF8.GetBytes(stringToSign));
        string signature = BitConverter.ToString(signatureBytes).Replace("-", "").ToLower();
        Console.WriteLine(signature);
        Console.WriteLine("----------------------------------");

        // ************* 步骤 4：拼接 Authorization *************
        string authorization = algorithm + " "
            + "Credential=" + secretid + "/" + credentialScope + ", "
            + "SignedHeaders=" + signedHeaders + ", "
            + "Signature=" + signature;
        Console.WriteLine(authorization);
        Console.WriteLine("----------------------------------");

        Dictionary<string, string> headers = new Dictionary<string, string>();
        headers.Add("Authorization", authorization);
        headers.Add("Host", endpoint);
        headers.Add("Content-Type", contentType + "; charset=utf-8");
        headers.Add("X-TC-Timestamp", requestTimestamp.ToString());
        headers.Add("X-TC-Version", version);
        headers.Add("X-TC-Action", action);
        headers.Add("X-TC-Region", region);
        return headers;
    }
    public static void Main(string[] args)
    {
        // 密钥参数
        string SECRET_ID = "AKIDz8krbsJ5yKBZQpn74WFkmLPx3*******";
        string SECRET_KEY = "Gu5t9xGARNpq86cd98joQYCN3*******";

        string service = "cvm";
        string endpoint = "cvm.tencentcloudapi.com";
        string region = "ap-guangzhou";
        string action = "DescribeInstances";
        string version = "2017-03-12";

        // 此处由于示例规范的原因，采用时间戳2019-02-26 00:44:25，此参数作为示例，如果在项目中，您应当使用：
        // DateTime date = DateTime.UtcNow;
        // 注意时区，建议此时间统一采用UTC时间戳，否则容易出错
        DateTime date = new DateTime(1970, 1, 1, 0, 0, 0, 0, DateTimeKind.Utc).AddSeconds(1551113065);
        string requestPayload = "{\"Limit\": 1, \"Filters\": [{\"Values\": [\"\\u672a\\u547d\\u540d\"], \"Name\": \"instance-name\"}]}";

        Dictionary<string, string> headers = BuildHeaders(SECRET_ID, SECRET_KEY, service
            , endpoint, region, action, version, date, requestPayload);

        Console.WriteLine("POST https://cvm.tencentcloudapi.com");
        foreach (KeyValuePair<string, string> kv in headers)
        {
            Console.WriteLine(kv.Key + ": " + kv.Value);
        }
        Console.WriteLine();
        Console.WriteLine(requestPayload);
    }
}

.Net Sdk api 3.0 

c# .Net Sdk api 3.0  短信源代码  https://cloud.tencent.com/document/product/382/43198

短信发送.Net SDK 3.0 for .Net 5.x(https://github.com/iaspnetcore/tencentcloud-sdk-dotnet-sms)

短信 发送API 文档（腾讯云）

https://cloud.tencent.com/document/product/382/38778

SDK 3.0