Re: [java ee programming] Message from ActMQ

[Rafał Laczek]

Hi,

Thanks.

I will check in later on.

regards,

Rafal

Dnia 8-02-2011 o godz. 6:20 bambang passion napisał(a):

hi,

pls. check on http error 303 or 304. it is occurred at client side and 304 means : not modified, it is just a message.

do check thoroughly the possible outputs for your getDateHeader,

i think the output will be an http  message not DATE.

b.l 

2011/2/7 Rafał Laczek <rafal_lac...@wp.pl>

Hi,

The result of createRss.getTimestamp_long() is date in long format of last modification of my feed in RSS. This is the date when new message has been registered.

I try to display 303 error when there is no changes.

Please have a look for my present code. I know that there is here something wrong.

 

 

 

         System.out.println("Last modification is "+createRss.getTimestamp_long());

         response.setDateHeader("Last-Modified", createRss.getTimestamp_long());

       long lastModifiedRequest =  request.getDateHeader("If-Modified-Since");    

       if(createRss.getTimestamp_long()>lastModifiedRequest){

             System.out.println("There is new message");

       }else{

             System.out.println("There is NO new message");

             response.setStatus(HttpServletResponse.SC_NOT_MODIFIED); // 304

       }

 

 

Dnia 7-02-2011 o godz. 15:27 bambang passion napisał(a):

hi,

sorry i dont understand what you want, may be you could elaborate more?

by the way, what is the result of createRss.getTimestamp_long() ?

also check what are the required attributes for response.setDateHeader() ?


b.l

2011/2/7 Rafał Laczek <rafal_lac...@wp.pl>

Hi,

Yes. Now it works. But I have the other small problem.

In my servlet I want to send date of last modification and when I refresh the browser to get back this date.

In response I try to send the date and in request to get this date.

Unfortunately in response I get -1

 

Please look for following code:

response.setDateHeader("Last-Modified", createRss.getTimestamp_long());

  request.getDateHeader("Last-Modified");

  long lastModifiedRequest =  request.getDateHeader("Last-Modified");

       System.out.println("Last modification has been done on  " + lastModifiedRequest);

 

Can you help.

 

Regards,

Rafal

 

 

Dnia 7-02-2011 o godz. 3:58 bambang passion napisał(a):

HI,

you need to define the : ConnectionFactory and TOPIC

b.l

2011/2/3 Rafał Laczek <rafal_lac...@wp.pl>

Hi,
Can somebody help me to get Message using following code.

Thanks
Rafal

à  try{
Properties props = new Properties();
à  props.setProperty(Context.INITIAL_CONTEXT_FACTORY,
à  "org.apache.activemq.jndi.ActiveMQInitialContextFactory");
à  props.setProperty(Context.PROVIDER_URL,"tcp://srv-waw-323:61222");

Context ctx = new InitialContext(props);
// lookup the connection factory
TopicConnectionFactory factory =
(TopicConnectionFactory)ctx.lookup("ConnectionFactory");

à  // create a new TopicConnection for pub/sub messaging
à  TopicConnection conn = factory.createTopicConnection();
à  // create a new TopicSession for the client
à  TopicSession session =

conn.createTopicSession(false,TopicSession.AUTO_ACKNOWLEDGE);
// lookup an existing topic
Topic mytopic = (Topic)ctx.lookup(TOPIC);
// create a new subscriber to receive messages
javax.jms.TopicSubscriber subscriber = session.createSubscriber(mytopic);

à  System.out.println("TopicSubscriber is "+ subscriber.getTopic());
à  } catch (Exception e) {
à   à   à   e.printStackTrace();

à   à   à   à   à   à   à   à  }

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