Apache camel 在Camel 2.15中配置Jetty组件
我正试着开始用骆驼码头。 我已将依赖项添加到我的pom中:Apache camel 在Camel 2.15中配置Jetty组件,apache-camel,jetty,Apache Camel,Jetty,我正试着开始用骆驼码头。 我已将依赖项添加到我的pom中: <dependency> <groupId>org.apache.camel</groupId> <artifactId>camel-jetty</artifactId> <version>2.15.5</version> </dependency> 当我尝试启动我的服务时,该
<dependency>
<groupId>org.apache.camel</groupId>
<artifactId>camel-jetty</artifactId>
<version>2.15.5</version>
</dependency>
当我尝试启动我的服务时,该服务具有一个定义为以下端点的路由:
jetty:http://0.0.0.0:9000/httpInput
我得到一个例外:
java.lang.NullPointerException: null
at org.apache.camel.component.jetty8.JettyHttpComponent8.createConnectorJettyInternal(JettyHttpComponent8.java:48)
at org.apache.camel.component.jetty.JettyHttpComponent.createConnector(JettyHttpComponent.java:585)
at org.apache.camel.component.jetty.JettyHttpComponent.getSocketConnector(JettyHttpComponent.java:527)
at org.apache.camel.component.jetty.JettyHttpComponent.getConnector(JettyHttpComponent.java:517)
at org.apache.camel.component.jetty.JettyHttpComponent.connect(JettyHttpComponent.java:320)
at org.apache.camel.component.http.HttpEndpoint.connect(HttpEndpoint.java:185)
at org.apache.camel.component.http.HttpConsumer.doStart(HttpConsumer.java:53)
at org.apache.camel.support.ServiceSupport.start(ServiceSupport.java:61)
at org.apache.camel.impl.DefaultCamelContext.startService(DefaultCamelContext.java:2885)
at org.apache.camel.impl.DefaultCamelContext.doStartOrResumeRouteConsumers(DefaultCamelContext.java:3179)
at org.apache.camel.impl.DefaultCamelContext.doStartRouteConsumers(DefaultCamelContext.java:3115)
at org.apache.camel.impl.DefaultCamelContext.safelyStartRouteServices(DefaultCamelContext.java:3045)
at org.apache.camel.impl.DefaultCamelContext.doStartOrResumeRoutes(DefaultCamelContext.java:2813)
at org.apache.camel.impl.DefaultCamelContext.startAllRoutes(DefaultCamelContext.java:865)
关于如何设置码头组件的文档充其量是缺乏的。我发现了一个邮件列表条目,其中说JettyHttpComponent从Camel 2.15开始就被抽象化了,现在该组件必须使用JettyHttpComponent8或9进行配置
在我的例子中,我使用的是Camel 2.15.5,而JettyHttpComponent9在类路径中不可用,使用8会产生上述异常。
我还发现相关讨论中没有关于如何实际使用该组件的信息。这通常不是CamelContext的初始化/启动方式。请考虑使用原型来启动,然后添加JETTY Maven依赖项,并查看是否可以复制错误。
骆驼原型可以在这里找到:这通常不是初始化/启动骆驼上下文的方式。请考虑使用原型来启动,然后添加JETTY Maven依赖项,并查看是否可以复制错误。
驼峰原型可以在这里找到:要在spring之外启动驼峰上下文,您需要创建一个连续的线程来保持驼峰的活力,如下所述: 别担心,我下面有一些代码将在localhost:8081上为您设置jetty: pom.xml
<dependency>
<groupId>org.apache.camel</groupId>
<artifactId>camel-jetty</artifactId>
<version>2.16.1</version>
</dependency>
<dependency>
<groupId>org.apache.camel</groupId>
<artifactId>camel-core</artifactId>
<version>2.16.1</version>
</dependency>
import org.apache.camel.Exchange;
import org.apache.camel.Processor;
import org.apache.camel.builder.RouteBuilder;
import org.apache.camel.main.Main;
import org.apache.camel.main.MainListenerSupport;
import org.apache.camel.main.MainSupport;
import java.util.Date;
/**
* Created by mkbrv on 22/06/16.
*/
public class CamelJetty {
private Main main;
public static void main(String[] args) throws Exception {
CamelJetty example = new CamelJetty();
example.boot();
}
public void boot() throws Exception {
// create a Main instance
main = new Main();
// bind MyBean into the registry
main.bind("foo", new MyBean());
// add routes
main.addRouteBuilder(new MyJettyRouteBuilder());
// add event listener
main.addMainListener(new Events());
// run until you terminate the JVM
System.out.println("Starting Camel. Use ctrl + c to terminate the JVM.\n");
main.run();
}
private static class MyJettyRouteBuilder extends RouteBuilder {
@Override
public void configure() throws Exception {
from("jetty:http://localhost:8081")
.process(exchange -> {
System.out.println("Invoked timer at " + new Date());
exchange.getOut().setBody("Hi, this is Camel!");
})
.bean("foo");
}
}
public static class MyBean {
public void callMe() {
System.out.println("MyBean.callMe method has been called");
}
}
public static class Events extends MainListenerSupport {
@Override
public void afterStart(MainSupport main) {
System.out.println("MainExample with Camel is now started!");
}
@Override
public void beforeStop(MainSupport main) {
System.out.println("MainExample with Camel is now being stopped!");
}
}
}
org.apache.camel
你应该会看到一条欢迎信息。
享受进一步调整的乐趣 要在spring之外启动camel上下文,您需要创建一个连续的线程来保持camel活动,如下所述:
别担心,我下面有一些代码将在localhost:8081上为您设置jetty:
pom.xml
<dependency>
<groupId>org.apache.camel</groupId>
<artifactId>camel-jetty</artifactId>
<version>2.16.1</version>
</dependency>
<dependency>
<groupId>org.apache.camel</groupId>
<artifactId>camel-core</artifactId>
<version>2.16.1</version>
</dependency>
import org.apache.camel.Exchange;
import org.apache.camel.Processor;
import org.apache.camel.builder.RouteBuilder;
import org.apache.camel.main.Main;
import org.apache.camel.main.MainListenerSupport;
import org.apache.camel.main.MainSupport;
import java.util.Date;
/**
* Created by mkbrv on 22/06/16.
*/
public class CamelJetty {
private Main main;
public static void main(String[] args) throws Exception {
CamelJetty example = new CamelJetty();
example.boot();
}
public void boot() throws Exception {
// create a Main instance
main = new Main();
// bind MyBean into the registry
main.bind("foo", new MyBean());
// add routes
main.addRouteBuilder(new MyJettyRouteBuilder());
// add event listener
main.addMainListener(new Events());
// run until you terminate the JVM
System.out.println("Starting Camel. Use ctrl + c to terminate the JVM.\n");
main.run();
}
private static class MyJettyRouteBuilder extends RouteBuilder {
@Override
public void configure() throws Exception {
from("jetty:http://localhost:8081")
.process(exchange -> {
System.out.println("Invoked timer at " + new Date());
exchange.getOut().setBody("Hi, this is Camel!");
})
.bean("foo");
}
}
public static class MyBean {
public void callMe() {
System.out.println("MyBean.callMe method has been called");
}
}
public static class Events extends MainListenerSupport {
@Override
public void afterStart(MainSupport main) {
System.out.println("MainExample with Camel is now started!");
}
@Override
public void beforeStop(MainSupport main) {
System.out.println("MainExample with Camel is now being stopped!");
}
}
}
org.apache.camel
你应该会看到一条欢迎信息。
享受进一步调整的乐趣