我正试图用Apache Camel和Spring Boot来编写我的第一个项目。它应该调用一个Rest-Endpoint并处理数据，但我的处理器从未被调用。我到底做错了什么？
日志显示路由已经启动，并且从 "direct:/httpRoute "消耗。但是在End中，没有任何日志显示MyProcessor被调用。
TssImportApplication.java。
package de.importer.TssImport;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class TssImportApplication {
public static void main(String[] args) {
SpringApplication.run(TssImportApplication.class, args);
}
}
MyRoute.java
package de.importer.TssImport.routes;
import lombok.extern.slf4j.Slf4j;
import org.apache.camel.Exchange;
import org.apache.camel.Processor;
import org.apache.camel.builder.RouteBuilder;
import org.springframework.stereotype.Component;
@Component
@Slf4j
public class MyRoute extends RouteBuilder {
@Override
public void configure() throws Exception {
log.error("TEST");
from("direct:httpRoute").to("https://jsonplaceholder.typicode.com/todos/1").process(new MyProcessor());
}
class MyProcessor implements Processor {
public void process(Exchange exchange) throws Exception {
log.error("TEST 2");
System.out.println(exchange.getIn().getBody(String.class));
}
}
}
pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.3.1.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>de.importer</groupId>
<artifactId>TssImport</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>TssImport</name>
<description>Project to import data</description>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.apache.camel.springboot</groupId>
<artifactId>camel-spring-boot-dependencies</artifactId>
<version>3.3.0</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>org.apache.camel.springboot</groupId>
<artifactId>camel-spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.apache.camel.springboot</groupId>
<artifactId>camel-log-starter</artifactId>
</dependency>
<dependency>
<groupId>org.apache.camel.springboot</groupId>
<artifactId>camel-http-starter</artifactId>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
LOG
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v2.3.1.RELEASE)
2020-06-15 17:47:54.590 INFO 30161 --- [ main] de.importer.TssImport.TssImportApplication : Starting TssImportApplication on importer-VirtualBox with PID 30161 (/home/importer/Documents/TssImport/tssimport/target/classes started by importer in /home/importer/Documents/TssImport/tssimport)
2020-06-15 17:47:54.593 INFO 30161 --- [ main] de.importer.TssImport.TssImportApplication : No active profile set, falling back to default profiles: default
2020-06-15 17:47:55.732 INFO 30161 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'org.apache.camel.spring.boot.CamelAutoConfiguration' of type [org.apache.camel.spring.boot.CamelAutoConfiguration] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2020-06-15 17:47:55.912 INFO 30161 --- [ main] o.apache.camel.support.LRUCacheFactory : Detected and using LRUCacheFactory: camel-caffeine-lrucache
2020-06-15 17:47:56.437 ERROR 30161 --- [ main] de.importer.TssImport.routes.MyRoute : TEST
2020-06-15 17:47:56.494 INFO 30161 --- [ main] o.a.c.s.boot.SpringBootRoutesCollector : Loading additional Camel XML routes from: classpath:camel/*.xml
2020-06-15 17:47:56.495 INFO 30161 --- [ main] o.a.c.s.boot.SpringBootRoutesCollector : Loading additional Camel XML rests from: classpath:camel-rest/*.xml
2020-06-15 17:47:56.886 INFO 30161 --- [ main] o.a.camel.component.http.HttpComponent : Created ClientConnectionManager org.apache.http.impl.conn.PoolingHttpClientConnectionManager@77bb0ab5
2020-06-15 17:47:56.918 INFO 30161 --- [ main] o.a.c.impl.engine.AbstractCamelContext : Apache Camel 3.3.0 (CamelContext: camel-1) is starting
2020-06-15 17:47:56.919 INFO 30161 --- [ main] o.a.c.impl.engine.AbstractCamelContext : StreamCaching is not in use. If using streams then its recommended to enable stream caching. See more details at http://camel.apache.org/stream-caching.html
2020-06-15 17:47:57.037 INFO 30161 --- [ main] o.a.c.impl.engine.AbstractCamelContext : Route: route1 started and consuming from: direct://httpRoute
2020-06-15 17:47:57.046 INFO 30161 --- [ main] o.a.c.impl.engine.AbstractCamelContext : Total 1 routes, of which 1 are started
2020-06-15 17:47:57.047 INFO 30161 --- [ main] o.a.c.impl.engine.AbstractCamelContext : Apache Camel 3.3.0 (CamelContext: camel-1) started in 0.128 seconds
2020-06-15 17:47:57.052 INFO 30161 --- [ main] de.importer.TssImport.TssImportApplication : Started TssImportApplication in 2.989 seconds (JVM running for 3.806)
2020-06-15 17:47:57.060 WARN 30161 --- [extShutdownHook] o.a.c.s.boot.SpringBootCamelContext : CamelContext has only been running for less than a second. If you intend to run Camel for a longer time then you can set the property camel.springboot.main-run-controller=true in application.properties or add spring-boot-starter-web JAR to the classpath.
2020-06-15 17:47:57.061 INFO 30161 --- [extShutdownHook] o.a.c.impl.engine.AbstractCamelContext : Apache Camel 3.3.0 (CamelContext: camel-1) is shutting down
2020-06-15 17:47:57.066 INFO 30161 --- [extShutdownHook] o.a.c.i.engine.DefaultShutdownStrategy : Starting to graceful shutdown 1 routes (timeout 45 seconds)
2020-06-15 17:47:57.073 INFO 30161 --- [ - ShutdownTask] o.a.c.i.engine.DefaultShutdownStrategy : Route: route1 shutdown complete, was consuming from: direct://httpRoute
2020-06-15 17:47:57.074 INFO 30161 --- [extShutdownHook] o.a.c.i.engine.DefaultShutdownStrategy : Graceful shutdown of 1 routes completed in 0 seconds
2020-06-15 17:47:57.081 INFO 30161 --- [extShutdownHook] o.a.c.impl.engine.AbstractCamelContext : Apache Camel 3.3.0 (CamelContext: camel-1) uptime 0.163 seconds
2020-06-15 17:47:57.081 INFO 30161 --- [extShutdownHook] o.a.c.impl.engine.AbstractCamelContext : Apache Camel 3.3.0 (CamelContext: camel-1) is shutdown in 0.020 seconds
Process finished with exit code 0
首先，你的应用程序将很快关闭。为了保持主线程的阻塞，以便Camel保持运行，要么包含spring-boot-starter-web依赖，要么在你的application.properties或application.yml文件中添加camel.springboot.main-run-controller=true。
https:/cwiki.apache.orgconfluencedisplayCAMELSpring+Boot。
但是仍然没有处理器日志，因为你没有向'direct:httpRoute'发送任何消息，所以处理器没有被调用。
由于你不能从虚拟机外部向 "direct:httpRoute "发送任何消息，所以你需要像下面这样发送消息。
我在这里添加了一个休息控制器，当你在浏览器中进入 "send-message-to-direct-channel "端点时，它会向你的骆驼路线发送消息。这将需要spring-boot-starter-web，因为你正在添加休息控制器。
@RestController
public class DirectChannelController {
@Autowired
CamelContext camelContext;
@Autowired
ProducerTemplate producerTemplate;
@RequestMapping(value = "/send-message-to-direct-channel")
public void startCamel() {
producerTemplate.sendBody("direct:httpRoute", "An example message everytime");
}
}
或者你可以尝试
@Component
public class MyRunner implements CommandLineRunner {
@Autowired
CamelContext camelContext;
@Autowired
ProducerTemplate producerTemplate;
@Override
public void run(String... args) throws Exception {
producerTemplate.sendBody("direct:direct:httpRoute", "An example message everytime");
}
}
或者，如果你想通过定时器触发它，可以尝试在你的configure方法中添加以下路径。
from("timer://simpleTimer?period=2000")
.setBody()
.simple("This is a test message")
.to("direct:httpRoute");
添加camel.springboot.main-run-controller=true来保持应用程序的正常运行。