我很难为apachecamel路由编写测试用例。我有两条路线定义如下：
重新路由生成器.java

@Override
public void configure() throws Exception {

    rest("/test")
        .get()
        .param().name("UPDATED_DATE").endParam()
        .produces(MediaType.APPLICATION_JSON_VALUE)
        .to("direct:db");
}

dbroutebuilder.java文件

@Override
public void configure() throws Exception {      

    from("direct:db")
        .log(LoggingLevel.INFO, logger, "Headers: ${header.UPDATED_DATE}")
        .bean(Service.class, "testMethod(${header.UPDATED_DATE})")
        .split(body(), new AggregateData())
        .to("direct:transformer");
}

我尝试过：

public class RestApiRouteBuilderTest extends CamelTestSupport {

    @Override
    protected RoutesBuilder createRouteBuilder() throws Exception {
        return new RestApiRouteBuilder();
    }

    @Test
    public void testMock() throws Exception {       

        template.sendBodyAndHeader("rest://get:/test", null, "UPDATED_DATE", "2020-11-11");

        final Exchange receive = consumer.receive("direct:db");

        System.out.println("Body===>" + receive.getIn().getBody());
        // assert logic here
    }
}

我得到以下例外：

org.apache.camel.FailedToCreateProducerException: Failed to create Producer for endpoint: rest://get:/test?hostname=localhost. Reason: java.lang.IllegalArgumentException: Hostname must be configured on either restConfiguration or in the rest endpoint uri as a query parameter with name host, eg rest:get:/test?host=someserver

有人能帮我理解这个吗？如何在测试类中配置主机名？我找不到解决问题的办法。