channel.QueueDeclare(queue: "q.log.error",//队列名称

                     durable: true,//当前队列是否持久化 true:是 false:不是

                     exclusive: false,

                     autoDelete: false,

                     arguments: null);

 var body = Encoding.UTF8.GetBytes("测试消息");

 var properties = channel.CreateBasicProperties();

 //设置消息持久化

 properties.SetPersistent(true);

 channel.BasicPublish(exchange: "e.log",

                      routingKey: "log.error",

                      basicProperties: properties,

                      body: body);