在主类中调用Camel routeendpoint

Question

我创建了一个带有endpoint`direct:getRestFromExternalService的Camel路由，当我尝试在另一个类的主方法中使用此endpoint时，我得到了一个异常

在交易所执行时出现异常:交易所[ID-wmli 118067-61025-1493883025815-0-2]

和

终结点上没有可用的使用者:终结点[direct://getRestFromExternalService]。交流[ID-wmli 118067-61025-1493883025815-0-2]

这是路由类：

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>");
                }
});
}
}

这是具有调用此路由的主方法的类：

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行的情况下测试了主方法，并运行了它。是否有方法从不同类中实现的路由调用带有endpoint的requestBody？

Answer 1

我解决了这个问题，问题是上下文是在route类和main method类中创建的。