我正在测试使用JMS请求/回复骆驼和ActiveMQ的例子。当骆驼为你创建监听器时,我可以得到这个例子。即。
骆驼JMS请求回复远程MessageListener问题
from("direct:entryPoint").inOut("jms:queue:A");
from("jms:queue:A").
process(new Processor() {
@Override
public void process(Exchange exchange) throws Exception {
exchange.getIn().setBody("Hello World.");
}
});
我现在遇到的问题是,我不能让JMS请求/应答与存在骆驼的JVM之外的消息监听工作。连接超时等待答复。我确信MessageListener正在向replyTo队列发送回复,并且我还设置了correlationId。我在这里做错了什么?我已经搜索了几天,试图找出这没有运气。提前感谢您的帮助。
下面是我正在使用的路线,我也将下面的MessageListener逻辑也放在下面。
from("direct:entryPoint").
inOut("jms:queue:B?concurrentConsumers=4&requestTimeout=240000");
的MessageListener的onMessage队列B:
@Override
public void onMessage(Message message) {
String msg = null;
ObjectMapper mapper = new ObjectMapper();
mapper.configure(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS, true);
String jsonOutput = null;
try{
msg = ((TextMessage) message).getText();
//convert message payload to purchase order
PurchaseOrder order = mapper.readValue(msg, PurchaseOrder.class);
//Set the id to see if the request reply worked.
order.setOrderId(BigInteger.valueOf(111111111));
if(message.getJMSReplyTo() != null){
Map<String, Object> headers = new HashMap<String, Object>();
headers.put("JMSCorrelationID", message.getJMSCorrelationID());
headers.put("JMSReplyTo", message.getJMSReplyTo().toString());
jsonOutput = mapper.writeValueAsString(order);
//Camel runs on the external jvm so leverage the producerTemplate.
producerTemplate.
sendBodyAndHeaders("jms:"+ message.getJMSReplyTo().toString(),
jsonOutput, headers);
}
}
catch(Exception e){
logger.fatal(e.getMessage());
try {
if(message.getJMSReplyTo() != null){
Map<String, Object> headers = new HashMap<String, Object>();
headers.put("JMSCorrelationID", message.getJMSCorrelationID());
producerTemplate.
sendBodyAndHeaders("jms:"+ message.getJMSReplyTo().toString(),
e.getMessage(), headers);
}
} catch (JMSException e1) {
logger.fatal(e1.getMessage());
} catch (Exception e1) {
logger.fatal(e1.getMessage());
}
}
}
你的第一个例子对我来说不起作用,因为第一条路线没有从第二条路线得到身体。我不得不在处理器中进行这种更改: exchange.setOut(exchange.getIn()); exchange.getOut()。setBody(“Hello World!”); – BPS 2015-01-28 19:31:57