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做着玩的， 只实现了消息入队出队功能，没有持久化，也没有其它任何高级功能
直接上代码

public class AMQBase//:ISingleton
{/// <summary>/// 主题队列/// </summary>public Dictionary<string,Queue<EnQueueMsg>> queues {  get; set; }/// <summary>/// 验证用户，如果没有 IMQVerify 的实现，将不会验证用户/// </summary>readonly IMQVerify _verify;public AMQBase(IMQVerify verify) {_verify = verify;queues = new Dictionary<string, Queue<EnQueueMsg>>();/* 初始化时从 文件/数据库？ 读取未消费消息？ *//**/}/// <summary>/// 入队/// </summary>/// <returns></returns>public void EnQueue(EnQueueMsg msg) {if (_verify != null){if (!_verify.Verify(msg)){throw new Exception("身份验证失败");}}msg.msgid = Guid.NewGuid().ToString();//消息idEnQueueAsync(msg);}/// <summary>/// 异步执行入队/// </summary>/// <param name="msg"></param>/// <returns></returns>private async Task EnQueueAsync(EnQueueMsg msg){//新主题if (!queues.ContainsKey(msg.topic)){queues.Add(msg.topic, new Queue<EnQueueMsg>());}/* 异步存入文件/数据库？ *//**///入队queues[msg.topic].Enqueue(msg);}/// <summary>/// 出队/// </summary>/// <param name="msg"></param>/// <returns></returns>public DeQueueData? DeQueue(DeQueueMsg msg){if (_verify != null){if (!_verify.Verify(msg)){throw new Exception("身份验证失败");}}//没有找到主题 或者队列为空if (!queues.ContainsKey(msg.topic)){return null;}if (queues[msg.topic].Count == 0){//主题队列为空，移除主题if (queues[msg.topic].Count == 0){queues.Remove(msg.topic);}return null;}//出队var mod=queues[msg.topic].Dequeue();var scount = queues[msg.topic].Count;//主题队列为空，移除主题if (queues[msg.topic].Count == 0){queues.Remove(msg.topic);}/* 异步 从文件/数据库 修改消息状态或删除？ *//**/return new DeQueueData { msgid= mod.msgid,//消息idcoutent=mod.content,//消息内容topic= mod.topic,//主题count= scount//剩余未消费消息数量};}/// <summary>/// 获取主题列表/// </summary>/// <returns></returns>public string[] TopicList(){return queues.Keys.ToArray();}/// <summary>/// 获取全部的主题和未消费的消息数量/// </summary>/// <returns></returns>public List<MqCount> GetCount() { return queues.Select(x=>new MqCount { topic=x.Key,count=x.Value.Count}).ToList(); }/// <summary>/// 获取指定的主题和未消费的消息数量/// </summary>/// <returns></returns>public MqCount GetCount(string topic){if (!queues.ContainsKey(topic)) return null;return new MqCount{topic=topic,count = queues[topic].Count};}/// <summary>/// 删除主题，删除整个主题队列/// </summary>/// <param name="topic"></param>public async Task Remove(RemoveTopic rem){if (_verify != null){if (!_verify.Verify(rem)){throw new Exception("身份验证失败");}}queues.Remove(rem.topic);}}

身份验证接口

/// <summary>
/// 身份验证接口
/// </summary>
public interface IMQVerify//: ISingleton
{public bool Verify(MqMegBase mqMeg);
}

身份验证接口实现

    public class AMQVerify : IMQVerify//,ISingleton{public bool Verify(MqMegBase mqMeg){if (mqMeg.user == "mq" && mqMeg.password == "123456") return true;return false;}}

program.cs

    builder.Services.AddSingleton<IMQVerify, AMQVerify>();builder.Services.AddSingleton<AMQBase>();

通过api调用

    [ApiController, Route("[controller]/[action]")]public class AMQController : Controller{readonly AMQBase _mq;public AMQController(AMQBase mq){_mq = mq;}/// <summary>/// 入队/// </summary>/// <param name="msg"></param>[HttpPost]public async Task  EnQueue(EnQueueMsg msg){_mq.EnQueue(msg);}/// <summary>/// 出队/// </summary>/// <param name="msg"></param>/// <returns></returns>[HttpPost]public async Task<JsonResult> DeQueue(DeQueueMsg msg){return Json(_mq.DeQueue(msg));}/// <summary>/// 获取主题列表/// </summary>/// <returns></returns>[HttpGet]public JsonResult TopicList(){return Json(_mq.TopicList());}/// <summary>/// 获取全部的主题和未消费的消息数量/// </summary>/// <returns></returns>[HttpGet]public JsonResult GetCount(){return Json(_mq.GetCount());}/// <summary>/// 获取指定的主题和未消费的消息数量/// </summary>/// <param name="topic"></param>/// <returns></returns>[HttpGet]public JsonResult GetTopicCount(string topic){return Json(_mq.GetCount(topic));}/// <summary>/// 删除主题/// </summary>/// <param name="rem"></param>[HttpPost]public void Remove(RemoveTopic rem){_mq.Remove(rem);}}