[rabbitmq-discuss] How to configure reply queue?

Fri Nov 15 08:57:38 GMT 2013

Thank you Russell. I could able to resolve after making change in
replyQueue manually in configuration for the request.

On Tue, Nov 12, 2013 at 9:53 PM, Rajasekhar P <sekhar434145 at gmail.com>wrote:

> Hi Russell,
>
> Here is the my listerner POJO , still am getting null response. I didnt do
> any reply queue/corrID configuration.
>
>       // receive messages
> public Object handleMessage(String query) {
>  Test test = new Test("Pandit", "Pillai");
> return test;
> }
>
> Producer -
>
> Test response = (Test)this.rabbitTemplate.convertSendAndReceive(msg);
> System.out.println("Response : " + response);
>
> Result -
> *Response : null*
>
>
> Could you please help me . Thanks in advance.
>
>
> On Tue, Nov 12, 2013 at 7:05 PM, Gary Russell <grussell at gopivotal.com>wrote:
>
>> You need to return a result from your listener pojo
>>
>> public Object handleMessage(String msg)
>>
>> or
>>
>> public List<Object> handleMessage(String msg)
>>
>> etc.
>>
>>
>> On Tue, Nov 12, 2013 at 3:17 AM, Rajasekhar P <sekhar434145 at gmail.com>wrote:
>>
>>> Hi Russell,
>>>
>>> Thanks for the support. I have followed the documentation am getting
>>> response as null. Below is the producer and consumer code.
>>>
>>> PRODUCER -
>>>
>>> // rabbittemplate
>>> public RabbitTemplate rabbitTemplate() {
>>> RabbitTemplate template = new RabbitTemplate(connectionFactory());
>>>  template.setRoutingKey(this.queueName);
>>> template.setQueue(this.queueName);
>>> template.setMessageConverter(new JsonMessageConverter());
>>>  return template;
>>> }
>>>
>>> String msg = "CUSTOMER1";
>>> Object res = this.rabbitTemplate.convertSendAndReceive(msg);
>>> System.out.println("Message sent :" +msg);
>>> System.out.println("Response : " + res.toString());
>>>
>>> CONSUMER -
>>>
>>> SimpleMessageListenerContainer container = new
>>> SimpleMessageListenerContainer();
>>>  container.setConnectionFactory(this.connectionFactory);
>>> container.setQueueNames(this.queueName);
>>> container.setMessageListener(new *MessageListenerAdapter*(new
>>> TestMessageHandler(this.queueName), new JsonMessageConverter()));
>>>  container.start();
>>>
>>>
>>>        // receive messages
>>> public void handleMessage(String msg) {
>>>  System.out.println("Received  :" + msg);
>>> }
>>>
>>> *Result - *
>>> Message sent :CUSTOMER1
>>> java.lang.NullPointerException
>>>
>>>
>>> Here, inside handleMessage based on message I want get the results from
>>> DB and need to send back. Am confusing how set the response to that
>>> client(Producer)?
>>>
>>>
>>> <<snip>>
>>>
>>
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>>
>>
>
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