rabbitMQ收发服务客户端

@@ -42,7 +42,7 @@ public class ExSendMsg {
             Connection connection = ConnectionUtil.getConnection(hostIp,hostPort,vHostName,userName,password);
             // 从连接中创建通道
             Channel channel = connection.createChannel();
-            // 声明（创建）队列
+            // 声明（创建）交换
             channel.exchangeDeclare(exchangeName, exchangeType,true);
             // 消息内容
             channel.basicPublish(exchangeName, routingKey, null, msg.getBytes(StandardCharsets.UTF_8));