/// <summary>
/// 广播消息,需要在初始化时为exchangeName赋值
/// </summary>
/// <typeparam name="TMessage"></typeparam>
/// <param name="message"></param>
public void PublishFanout <TMessage>(string exchange, TMessage message)
{
if (!string.IsNullOrWhiteSpace(exchange))
{
exchangeName = exchange;
}
const string ROUTING_KEY = "";
channel.ExchangeDeclare(this.exchangeName, "fanout");//广播
var json = SerializeMemoryHelper.JsonSerializer(message);
var bytes = Encoding.UTF8.GetBytes(json);
channel.BasicPublish(this.exchangeName, ROUTING_KEY, null, bytes);//不需要指定routing key，设置了fanout,指了也没有用.
Console.WriteLine(DateTime.Now + " 向服务器{0}推消息", _uri);
}
/// <summary>
/// 触发消费行为
/// </summary>
/// <param name="queue">队列名称</param>
/// <param name="callback">回调方法</param>
public void Subscribe <TMessage>(string exchange, string queue, Action <TMessage> callback = null)
{
if (!string.IsNullOrWhiteSpace(exchange))
{
exchangeName = exchange;
}
// 使用自定义的队队
if (!string.IsNullOrWhiteSpace(queue))
{
queueName = queue;
}
if (!string.IsNullOrWhiteSpace(queueName)) //分发模式
{
channel.ExchangeDeclare(exchangeName, "topic"); //广播
channel.QueueDeclare(
queue: queueName,
durable: false, //持久化
exclusive: false, //独占,只能被一个consumer使用
autoDelete: false, //自己删除,在最后一个consumer完成后删除它
arguments: null);
channel.QueueBind(queueName, exchangeName, queueName);
}
else
{
//广播模式
channel.ExchangeDeclare(this.exchangeName, "fanout"); //广播
QueueDeclareOk queueOk = channel.QueueDeclare(); //每当Consumer连接时，我们需要一个新的，空的queue,如果在声明queue时不指定,那么RabbitMQ会随机为我们选择这个名字
queueName = queueOk.QueueName; //得到RabbitMQ帮我们取了名字
channel.QueueBind(queueName, exchangeName, string.Empty); //不需要指定routing key，设置了fanout,指了也没有用.
}
var consumer = new EventingBasicConsumer(channel);
consumer.Received += (sender, e) =>
{
var body = e.Body;
var json = Encoding.UTF8.GetString(body.ToArray());
callback(SerializeMemoryHelper.JsonDeserialize <TMessage>(json));
channel.BasicAck(e.DeliveryTag, multiple: false);
};
channel.BasicConsume(queue: queueName,
autoAck: true,
consumer: consumer);
queueName = null;
Console.WriteLine(" [*] Waiting for messages." + "To exit press CTRL+C");
}
/// <summary>
/// 将消息推送到服务器
/// </summary>
/// <typeparam name="TMessage"></typeparam>
/// <param name="queue"></param>
/// <param name="message"></param>
public void Publish <TMessage>(string exchange, string queue, TMessage message)
{
if (!string.IsNullOrWhiteSpace(exchange))
{
exchangeName = exchange;
}
channel.QueueDeclare(queue: queue, //队列名
durable: false, //是否持久化
exclusive: false, //排它性
autoDelete: false, //一旦客户端连接断开则自动删除queue
arguments: null); //如果安装了队列优先级插件则可以设置优先级
var json = SerializeMemoryHelper.JsonSerializer(message);
var bytes = Encoding.UTF8.GetBytes(json);
Console.WriteLine("向服务器{0}推消息", _uri);
channel.BasicPublish(exchange: this.exchangeName, routingKey: queue, basicProperties: null, body: bytes);
}
