在 Quartz Scheduler 中使用 Apache Camel 时出现问题

Question

我是 Apache 骆驼和石英调度程序的新手。我试图将它们两者集成使用，但无法做到这一点。我在“Camel in Action”一书中找到了一篇小文章，但我也没有设法运行该程序 - 这是我的代码

包 com.cockpitconfig.schedulars;

import org.apache.camel.CamelContext;
import org.apache.camel.builder.RouteBuilder;
import org.apache.camel.impl.DefaultCamelContext;

public class TestScheduler {

    public static void main(String args[]) throws Exception {
        CamelContext context = new DefaultCamelContext();
        context.disableJMX();
        context.addRoutes(new RouteBuilder() {
            @Override
            public void configure() {
                from(
                        "quartz://myTimer?trigger.repeatInterval=2000&trigger.repeatCount=-1")
                        .setBody().simple("Current time is ").to("stream:out");
            }
        });

        context.start();
        Thread.sleep(10000);

        context.stop();
    }
}

但它给出了错误

Exception in thread "main" java.lang.InstantiationError: org.quartz.SimpleTrigger
    at org.apache.camel.component.quartz.QuartzComponent.createEndpoint(QuartzComponent.java:119)
    at org.apache.camel.component.quartz.QuartzComponent.createEndpoint(QuartzComponent.java:54)
    at org.apache.camel.impl.DefaultComponent.createEndpoint(DefaultComponent.java:75)
    at org.apache.camel.impl.DefaultCamelContext.getEndpoint(DefaultCamelContext.java:419)
    at org.apache.camel.util.CamelContextHelper.getMandatoryEndpoint(CamelContextHelper.java:47)
    at org.apache.camel.model.RouteDefinition.resolveEndpoint(RouteDefinition.java:189)
    at org.apache.camel.impl.DefaultRouteContext.resolveEndpoint(DefaultRouteContext.java:110)
    at org.apache.camel.impl.DefaultRouteContext.resolveEndpoint(DefaultRouteContext.java:116)
    at org.apache.camel.model.FromDefinition.resolveEndpoint(FromDefinition.java:73)
    at org.apache.camel.impl.DefaultRouteContext.getEndpoint(DefaultRouteContext.java:88)
    at org.apache.camel.model.RouteDefinition.addRoutes(RouteDefinition.java:751)
    at org.apache.camel.model.RouteDefinition.addRoutes(RouteDefinition.java:174)
    at org.apache.camel.impl.DefaultCamelContext.startRoute(DefaultCamelContext.java:610)
    at org.apache.camel.impl.DefaultCamelContext.startRouteDefinitions(DefaultCamelContext.java:1514)
    at org.apache.camel.impl.DefaultCamelContext.doStartCamel(DefaultCamelContext.java:1306)
    at org.apache.camel.impl.DefaultCamelContext.doStart(DefaultCamelContext.java:1213)
    at org.apache.camel.impl.ServiceSupport.start(ServiceSupport.java:65)
    at org.apache.camel.impl.ServiceSupport.start(ServiceSupport.java:52)
    at org.apache.camel.impl.DefaultCamelContext.start(DefaultCamelContext.java:1191)
    at com.cockpitconfig.schedulars.TestScheduler.main(TestScheduler.java:24)

有人能解决这个问题吗？

Answer 1

你使用什么版本的骆驼？使用 2.8-SNAPSHOT 对我来说效果很好。只需确保您的路径中有camel-core、camel-quartz 和camel-stream 依赖项即可。

Answer 2

从当前的camel-quartz插件文档来看，这一点并不明显，但从Camel 2.11.0开始，它仅与Quartz 1.x兼容，与Quartz 2.x（已经发布几年了）不兼容，因为Quartz 2.x 与 Spring 3.0 不兼容（Camel 表示暂时将保持 Spring 3.0 兼容性。

这记录在 此 Camel JIRA 问题。