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( 1970, 1, 1)).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( 1970, 1, 1)).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 > 10)
{
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( 1970, 1, 1)).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;
}

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( 1000);
}
Console.Read();

}
}
}

本文转自94cool博客园博客，原文链接：http://www.cnblogs.com/94cool/p/5747971.html，如需转载请自行联系原作者