問題描述

我希望有人可以在這個問題上提供一些幫助.

I hope someone can provide some help on this matter.

我正在使用駱駝rabbitmq，出于測試目的，我試圖向隊列發送一條消息，我試圖在rabbitmq界面中顯示該消息，然后將其讀回.

I am using camel rabbitmq and for testing purpose I am trying to send a message to the queue, which I'm trying to display in rabbitmq interface and then also read it back.

但是我不能讓它工作.

我認為可行的是，我在 rabbitmq 管理界面的交換選項卡中創建了一個新的交換.在我的 java 代碼中，我將消息發送到該交換.執行代碼時，我可以在 Web 界面中看到一個峰值，表明已收到某些內容，但我看不到已收到的內容.當我嘗試閱讀時，我無法閱讀并收到以下錯誤:<在路由中: Route(route2)[[From[rabbitmq://192.168.59.103:5672/rt... 因為 Route route2 沒有輸出處理器.您需要向路由添加輸出，例如 to("log:foo").

What I believe works is that I created, in the exchange tab of rabbitmq management interface, a new exchange. In my java code I send the message to that exchange. When the code is executed, I can see a spike in the web interface showing that something has been received but I can't see what has been received. When I try to read, I can't read and get the following errror: < in route: Route(route2)[[From[rabbitmq://192.168.59.103:5672/rt... because of Route route2 has no output processors. You need to add outputs to the route such as to("log:foo").

誰能給我一個關于如何發送消息、在網絡交互中查看并閱讀的實際示例?任何顯示此過程的教程也將不勝感激.

Can someone provide me a practical example on how to send a message,see it in the web interace and also read it? any tutorial showing this process will be also appreciated.

謝謝

=================第二部分

================= SECOND PART

我現在遇到的錯誤如下:

The error I'm getting now is the following:

Caused by: com.rabbitmq.client.ShutdownSignalException: channel error; reason: {#method<channel.close>(reply-code=406, reply-text=PRECONDITION_FAILED - cannot redeclare exchange 'rhSearchExchange' in vhost '/' with different type, durable, internal or autodelete value, class-id=40, method-id=10), null, ""}
    at com.rabbitmq.utility.ValueOrException.getValue(ValueOrException.java:67)
    at com.rabbitmq.utility.BlockingValueOrException.uninterruptibleGetValue(BlockingValueOrException.java:33)
    at com.rabbitmq.client.impl.AMQChannel$BlockingRpcContinuation.getReply(AMQChannel.java:343)
    at com.rabbitmq.client.impl.AMQChannel.privateRpc(AMQChannel.java:216)
    at com.rabbitmq.client.impl.AMQChannel.exnWrappingRpc(AMQChannel.java:118)
    ... 47 more

我有以下設置:

我收到此錯誤，我認為我的 URI 有問題，我必須定義一些我缺少的額外參數我的交換是直接類型的我的隊列是持久型我的 uri 是:rabbitmq://192.168.59.105:5672/rhSearchExchange?username=guest&password=guest&routingKey=rhSearchQueue

I get this error, I believe I’m doing something wrong with the URI and I have to define some extra parameters that I’m missing My exchange is of direct type My queue is of durable type And my uri is : rabbitmq://192.168.59.105:5672/rhSearchExchange?username=guest&password=guest&routingKey=rhSearchQueue

對此有何意見?

謝謝

推薦答案

所以我昨天能夠解決這個問題，我遇到了與您相同(或至少相似)的問題.

So I was able to figure this out yesterday, I had the same (or at least similar) problems you were having.

您在 RabbitMQ URI 中擁有的選項必須與創建您的交換所使用的選項完全匹配.例如，在我的配置中，我有一個名為 tasks 的交換器，它是一種直接類型，是持久的，并且沒有配置為自動刪除.請注意，rabbitmq 駱駝組件中自動刪除選項的默認值為 true.此外，我想使用路由鍵 camel 獲取消息.這意味著我的 rabbitmq URI 需要看起來像:

The options you have in the RabbitMQ URI must exactly match the options that your exchange was created with. For example, in my configuration, I had an exchange called tasks that was a direct type, was durable, and was not configured to autodelete. Note that the default value for the autodelete option in the rabbitmq camel component is true. Additionally, I wanted to get the messages with the routing key camel. That means my rabbitmq URI needed to look like:

rabbitmq:localhost:5672/tasks?username=guest&password=guest&autoDelete=false&routingKey=camel

此外，我想從一個名為 task_queue 的現有隊列中讀取數據，而不是讓 rabbitmq camel 組件聲明它自己的隊列.因此，我還需要添加一個額外的查詢參數，所以我的 rabbitmq URI 是

Additionally, I wanted to read from an existing queue, called task_queue rather than have the rabbitmq camel component declare it's own queue. Therefore, I also needed to add an additional query parameter, so my rabbitmq URI was

rabbitmq:localhost:5672/tasks?username=guest&password=guest&autoDelete=false&routingKey=camel&queue=task_queue

此配置對我有用.下面，我從配置交換和隊列并發送消息的代碼中添加了一些 Java 代碼片段，以及我的 Camel Route 配置.

This configuration worked for me. Below, I added some Java code snippets from the code that configures the exchange and queue and sends a message, and my Camel Route configuration.

rabbitConnFactory = new ConnectionFactory();
rabbitConnFactory.setHost("localhost");
final Connection conn = rabbitConnFactory.newConnection();
final Channel channel = conn.createChannel();

// declare a direct, durable, non autodelete exchange named 'tasks'    
channel.exchangeDeclare("tasks", "direct", true); 
// declare a durable, non exclusive, non autodelete queue named 'task_queue'
channel.queueDeclare("task_queue", true, false, false, null); 
// bind 'task_queue' to the 'tasks' exchange with the routing key 'camel'
channel.queueBind("task_queue", "tasks", "camel"); 

發送消息:

channel.basicPublish("tasks", "camel", MessageProperties.PERSISTENT_TEXT_PLAIN, "hello, world!".getBytes());

駱駝路線:

@Override
public void configure() throws Exception {
    from("rabbitmq:localhost:5672/tasks?username=guest&password=guest&autoDelete=false&routingKey=camel&queue=task_queue")
        .to("mock:result");
}

我希望這會有所幫助！

這篇關于Apache駱駝，RabbitMQ如何發送消息/對象的文章就介紹到這了，希望我們推薦的答案對大家有所幫助，也希望大家多多支持html5模板網！