RabbitMQ

RabbitMQ

1.安装nget包

DotNetCore.CAP

2.在program里写配置

//加入CAP
builder.Services.AddCap(x =>
{
    //读取上下文
    x.UseEntityFramework<MemberContext>(); // EF

    //读取数据库
    x.UseSqlServer(builder.Configuration["ConnectionStrings:Serve"]); // SQL Server

    //注入相关配置
    x.UseRabbitMQ(cfg =>
    {
        //主机
        cfg.HostName = builder.Configuration["RabbitMQ:Host"];
        //虚拟主机
        cfg.VirtualHost = builder.Configuration["RabbitMQ:VirtualHost"];
        //端口
        cfg.Port = Convert.ToInt32(builder.Configuration["RabbitMQ:Port"]);
        //用户名
        cfg.UserName = builder.Configuration["RabbitMQ:UserName"];
        //密码
        cfg.Password = builder.Configuration["RabbitMQ:Password"];
    }); // RabbitMQ

    // Below settings is just for demo
    //失败重试次数
    x.FailedRetryCount = 2;
    //每次间隔5秒
    x.FailedRetryInterval = 5;
});

3.在appsettings配置文件里写入上面的连接条件

{
  "Logging": {
    "LogLevel": {
      "Default": "Information",
      "Microsoft.AspNetCore": "Warning"
    }
  },
  "AllowedHosts": "*",
    //连接字符串
  "ConnectionStrings": { "Serve": "Data Source=10.31.60.17;Encrypt=True;Initial Catalog=MemberDB;TrustServerCertificate=True;uid=wzy;pwd=123456" },
    //MQ相关配置
  "RabbitMQ": {
    "Host": "127.0.0.1", //主机
    "VirtualHost": "/",//虚拟主机
    "Port": 5672,//端口
    "UserName": "guest", //RabbitMQ的账户名
    "Password": "guest" //RabbitMQ的密码
  }
}

4.生产者:发布消息

        /// <summary>
        /// 获取会员等级
        /// </summary>
        /// <returns></returns>
        [HttpGet]
        public IActionResult GetMemberLevelTable([FromServices] ICapPublisher capBus)
        {
            var list = levelBenefits.GetMemberLevelTable();

            capBus.Publish("GetMemberLevelTable", list);

            var MaxNumber = 0;

            if (list.Count!=0)
            {
                MaxNumber = list.Max(x => x.MemberLevel_Id);
            }        

            return Ok(new { list, MaxNumber });
        }

5.消费者:接收消息

        /// <summary>
        /// 获取mq
        /// </summary>
        /// <param name="obj"></param>
        /// <returns></returns>
        [HttpGet]
        [CapSubscribe("GetMemberLevelTable")]
        [Route("MQShow")]
        public IActionResult MQShow(List<object> obj)
        {
            return Ok(obj);
        }