我使用 endpoints `direct:getRestFromExternalService创建了一个Camel路由,当我尝试在另一个类中的main方法中使用此 endpoints 时,我得到一个异常
在交易所执行期间发生异常:交易所[ID-WMLI118067-61025-1493883025815-0-2]
和
endpoints 上没有可用的消费者: endpoints [direct:// getRestFromExternalService] . 交换[ID-WMLI118067-61025-1493883025815-0-2]
这是路线类:
public class MyRoute extends RouteBuilder {
@Override
public void configure() throws Exception {
// Create the camel context for the REST API routing in Fuse
CamelContext contextFuseAPI = new DefaultCamelContext();
// Start the route inside the context to listen to the ActiveMQ
contextFuseAPI.addRoutes(new RouteBuilder() {
@Override
public void configure() {
from("direct:getRestFromExternalService")
.setHeader(Exchange.HTTP_METHOD, simple("GET"))
.to("<external API URI>");
}
});
}
}
这是使用main方法调用此路由的类:
public class FuseApp {
public static void main(String[] args) throws Exception {
CamelContext contextFuseAPI = new DefaultCamelContext();
contextFuseAPI.addRoutes(new MyRoute());
contextFuseAPI.start();
Thread.sleep(3000);
ProducerTemplate template = contextFuseAPI.createProducerTemplate();
Object result = template.requestBody("direct:getRestFromExternalService", null, String.class);
Exchange exchange = new DefaultExchange(contextFuseAPI);
String response = ExchangeHelper.convertToType(exchange, String.class, result);
System.out.println("Response : "+ response);
contextFuseAPI.stop();
}
}
我在没有ProducerTemplate和Object行的情况下测试了main方法,并且它运行了 . 有没有办法使用来自不同类中实现的路由的 endpoints 调用requestBody?
1 回答
我解决了它,问题是上下文是在路由类和主方法类中创建的 .