阿里云消息队列MQ_HTTP接入 for .NetCore 简单例子

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Net.Http;
using System.Net.Http.Headers;
using System.Security.Cryptography;
using System.Text;
using System.Threading.Tasks;
using Newtonsoft.Json;

namespace MQWebCore
{
    public class MQHelper
    {
        string URL = "http://publictest-rest.ons.aliyun.com";

        string topic, secretKey, accessKey;
        public MQHelper(string topic,string secretKey,string accessKey)
        {
            this.topic = topic;
            this.secretKey = secretKey;
            this.accessKey = accessKey;

        }
        /// <summary>
        /// URL 中的 Key，Tag以及 POST Content-Type 没有任何的限制，只要确保Key 和 Tag 相同唯一即可
        /// </summary>
        /// <param name="tag"></param>
        /// <param name="key"></param>
        /// <param name="body"></param>
        /// <returns></returns>
        public async Task<bool> Pub(string tag, string key, string body)
        {
            using (HttpClient httpClient = new HttpClient())
            {
                httpClient.DefaultRequestHeaders.Connection.Add("keep-alive");
                HttpContent content = new StringContent(body, Encoding.UTF8);
                httpClient.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("text/html"));
                
                var time = (long)(DateTime.Now.ToUniversalTime() - new DateTime(, , )).TotalMilliseconds;
                var signString = Sign(string.Format("{0}\nPID_{0}\n{1}\n{2}", topic, MD5Encrypt(body), time), secretKey);

                httpClient.DefaultRequestHeaders.Add("AccessKey", accessKey);
                httpClient.DefaultRequestHeaders.Add("Signature", signString);
                httpClient.DefaultRequestHeaders.Add("ProducerID", string.Format("PID_{0}", topic));

                var url = URL + "/message/?topic=" + topic + "&time=" + time + "&tag=" + tag + "&key=" + key;
                var res = await httpClient.PostAsync(url, content);
                if (res.StatusCode == System.Net.HttpStatusCode.Created)
                {
                    return true;
                }
                return false;
            }
        }

        public async void Subscribe(string tag = "*")
        {
            using (HttpClient httpClient = new HttpClient())
            {
                httpClient.DefaultRequestHeaders.Connection.Add("keep-alive");
                httpClient.DefaultRequestHeaders.Add("Accept-Charset", "utf-8"); 
                
                var time = (long)(DateTime.Now.ToUniversalTime() - new DateTime(, , )).TotalMilliseconds;
                var signString = Sign(string.Format("{0}\nCID_{0}\n{1}", topic, time), secretKey);

                httpClient.DefaultRequestHeaders.Add("AccessKey", accessKey);
                httpClient.DefaultRequestHeaders.Add("Signature", signString);
                httpClient.DefaultRequestHeaders.Add("ConsumerID", string.Format("CID_{0}", topic));

                var url = URL + "/message/?topic=" + topic + "&time=" + time + "&num=32";
                var res = httpClient.GetAsync(url).GetAwaiter().GetResult();
                Console.WriteLine(res.StatusCode);
                if (res.StatusCode == System.Net.HttpStatusCode.OK)
                {
                    var msg = await res.Content.ReadAsStringAsync();
                    Console.WriteLine(msg);
                    if (msg != null && msg.Length > )
                    {
                        MQMessage[] mqMsgs = JsonConvert.DeserializeObject<MQMessage[]>(msg);
                        foreach (var mqMsg in mqMsgs)
                        {
                            Delete(mqMsg.msgHandle);
                        }
                    }
                }
            }
        }

        async void Delete(string msgHandle)
        {
            using (HttpClient httpClient = new HttpClient())
            {
                httpClient.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("text/html"));
                
                var time = (long)(DateTime.Now.ToUniversalTime() - new DateTime(, , )).TotalMilliseconds;
                var signString = Sign(string.Format("{0}\nCID_{0}\n{1}\n{2}", topic, msgHandle, time), secretKey);

                httpClient.DefaultRequestHeaders.Add("AccessKey", accessKey);
                httpClient.DefaultRequestHeaders.Add("Signature", signString);
                httpClient.DefaultRequestHeaders.Add("ConsumerID", string.Format("CID_{0}", topic));

                var url = URL + "/message/?topic=" + topic + "&time=" + time + "&msgHandle=" + msgHandle;
                var res = await httpClient.DeleteAsync(url);
                if (res.StatusCode == System.Net.HttpStatusCode.NoContent)
                {
                    Console.WriteLine("消息删除成功，无需返回内容");
                }
                else
                {
                    Console.WriteLine(res.StatusCode);
                }
            }
        }

        string MD5Encrypt(string strText)
        {
            using (var md5 = MD5.Create())
            {
                var result = md5.ComputeHash(Encoding.UTF8.GetBytes(strText));
                return BitConverter.ToString(result).Replace("-", "").ToLower();
            }
        }

        string Sign(string signatureString, string secretKey, bool isRaw = true)
        {
            var enc = Encoding.UTF8;
            HMACSHA1 hmac = new HMACSHA1(enc.GetBytes(secretKey));
            hmac.Initialize();

            byte[] buffer = enc.GetBytes(signatureString);
            if (isRaw)
            {
                byte[] ret = hmac.ComputeHash(buffer);
                return Convert.ToBase64String(ret);
            }
            else
            {
                string res = BitConverter.ToString(hmac.ComputeHash(buffer)).Replace("-", "").ToLower();
                return Convert.ToBase64String(Encoding.UTF8.GetBytes(res));
            }
        }
    }

    public class MQMessage
    {
        public string body;
        public string bornTime;
        public string msgHandle;
        public string msgId;
        public long reconsumeTimes;
        public string tag;
    }

使用：

using MQWebCore;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;

namespace ConsoleApp1
{
    public class Program
    {
        public static void Main(string[] args)
        {
            Console.OutputEncoding = System.Text.Encoding.UTF8;
            //Encoding.RegisterProvider(CodePagesEncodingProvider.Instance);
            MQHelper mqHelper = new MQHelper("Test", "3412qsd's12", "3412341212");
            var res = mqHelper.Pub("testTag", "testKey", DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss") + "阿特斯地方").GetAwaiter().GetResult();
            Debug.WriteLine(res);
            while (true)
            {
                mqHelper.Subscribe();
                Thread.Sleep();
            }
            Console.Read();

        }
    }
}