5
Vì tôi rất mới mẻ đối với lạc đà Apache và đặc biệt là phần còn lại DSL, tôi đã nghĩ đến việc thử một mẫu Rest DSL.Gặp lỗi trong khi tạo dịch vụ nghỉ ngơi bằng cách sử dụng apache lạc đà
Vì vậy, tôi đã tạo ra một con lạc đà-config.xml như:
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:camel="http://camel.apache.org/schema/spring"
xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://camel.apache.org/schema/spring http://camel.apache.org/schema/spring/camel-spring.xsd">
<!-- use camel-metrics route policy to gather metrics for all routes -->
<!-- bean id="metricsRoutePolicyFactory" class="org.apache.camel.component.metrics.routepolicy.MetricsRoutePolicyFactory"/-->
<!-- a rest service which uses binding to/from pojos -->
<bean id="userRoutes" class="org.apache.camel.example.rest.UserRouteBuilder"/>
<!-- a bean for user services -->
<bean id="userService" class="org.apache.camel.example.rest.UserService"/>
<camelContext id="myCamel" xmlns="http://camel.apache.org/schema/spring">
<routeBuilder ref="userRoutes"/>
</camelContext>
</beans>
và route class của tôi là:
package org.apache.camel.example.rest;
import org.apache.camel.builder.RouteBuilder;
/**
* Define REST services using the Camel REST DSL
*/
public class UserRouteBuilder extends RouteBuilder {
public void configure() throws Exception {
rest("/say").get("/hello").to("direct:hello").get("/bye")
.consumes("application/json").to("direct:bye").post("/bye")
.to("mock:update");
from("direct:hello").transform().constant("Hello World");
from("direct:bye").transform().constant("Bye World");
}
}
và web.xml của tôi là:
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
<display-name>My Camel Rest Application</display-name>
<!-- location of Camel Spring xml files -->
<context-param>
<param-name>contextConfigLocation</param-name>
<!-- to use Java DSL -->
<param-value>classpath:camel-config.xml</param-value>
<!-- to use XML DSL, then enable me, and disable Java DSL above
<param-value>classpath:camel-config-xml.xml</param-value>
-->
</context-param>
<!-- the listener that kick-starts Spring -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!-- to setup Camel Servlet -->
<servlet>
<display-name>Camel Http Transport Servlet</display-name>
<servlet-name>CamelServlet</servlet-name>
<servlet-class>org.apache.camel.component.servlet.CamelHttpTransportServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<!-- START SNIPPET: e1 -->
<!-- to setup Camel Swagger api servlet -->
<servlet>
<servlet-name>ApiDeclarationServlet</servlet-name>
<servlet-class>org.apache.camel.component.swagger.DefaultCamelSwaggerServlet</servlet-class>
<init-param>
<!-- we specify the base.path using relative notation, that means the actual path will be calculated at runtime as
http://server:port/contextpath/rest -->
<param-name>base.path</param-name>
<param-value>rest</param-value>
</init-param>
<init-param>
<!-- we specify the api.path using relative notation, that means the actual path will be calculated at runtime as
http://server:port/contextpath/api-docs -->
<param-name>api.path</param-name>
<param-value>api-docs</param-value>
</init-param>
<init-param>
<param-name>api.version</param-name>
<param-value>1.2.3</param-value>
</init-param>
<init-param>
<param-name>api.title</param-name>
<param-value>User Services</param-value>
</init-param>
<init-param>
<param-name>api.description</param-name>
<param-value>Camel Rest Example with Swagger that provides an User REST service</param-value>
</init-param>
<load-on-startup>2</load-on-startup>
</servlet>
<!-- swagger api declaration -->
<servlet-mapping>
<servlet-name>ApiDeclarationServlet</servlet-name>
<url-pattern>/api-docs/*</url-pattern>
</servlet-mapping>
<!-- END SNIPPET: e1 -->
<!-- define that url path for the Camel Servlet to use -->
<servlet-mapping>
<servlet-name>CamelServlet</servlet-name>
<url-pattern>/rest/*</url-pattern>
</servlet-mapping>
<!-- START SNIPPET: e2 -->
<!-- enable CORS filter so people can use swagger ui to browse and test the apis -->
<filter>
<filter-name>RestSwaggerCorsFilter</filter-name>
<filter-class>org.apache.camel.component.swagger.RestSwaggerCorsFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>RestSwaggerCorsFilter</filter-name>
<url-pattern>/api-docs/*</url-pattern>
<url-pattern>/rest/*</url-pattern>
</filter-mapping>
<!-- END SNIPPET: e2 -->
<welcome-file-list>
<welcome-file>home.html</welcome-file>
</welcome-file-list>
</web-app>
Bây giờ tôi đã tạo ra một tập tin chiến tranh của restProject của tôi và tôi triển khai nó trên tomcat. Cung cấp tất cả các lọ cần thiết trong thư mục lib của tomcat. Tôi đang sử dụng lạc đà 2.14.
Bây giờ khi tôi bắt đầu tomcat của tôi, Trong khi khởi động tôi nhận được lỗi như:
SEVERE: Context initialization failed
org.apache.camel.RuntimeCamelException: java.lang.IllegalStateException: Cannot find RestConsumerFactory in Registry or
as a Component to use
at org.apache.camel.util.ObjectHelper.wrapRuntimeCamelException(ObjectHelper.java:1364)
at org.apache.camel.spring.SpringCamelContext.onApplicationEvent(SpringCamelContext.java:122)
at org.apache.camel.spring.CamelContextFactoryBean.onApplicationEvent(CamelContextFactoryBean.java:327)
at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMult
icaster.java:96)
at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:3
34)
at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:
948)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:482)
at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:389
)
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:294)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:112)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4791)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5285)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:618)
at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1100)
at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1618)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
at java.util.concurrent.FutureTask.run(FutureTask.java:166)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at java.lang.Thread.run(Thread.java:722)
Caused by: java.lang.IllegalStateException: Cannot find RestConsumerFactory in Registry or as a Component to use
at org.apache.camel.component.rest.RestEndpoint.createConsumer(RestEndpoint.java:238)
at org.apache.camel.impl.EventDrivenConsumerRoute.addServices(EventDrivenConsumerRoute.java:65)
at org.apache.camel.impl.DefaultRoute.onStartingServices(DefaultRoute.java:80)
at org.apache.camel.impl.RouteService.warmUp(RouteService.java:134)
at org.apache.camel.impl.DefaultCamelContext.doWarmUpRoutes(DefaultCamelContext.java:2379)
at org.apache.camel.impl.DefaultCamelContext.safelyStartRouteServices(DefaultCamelContext.java:2309)
at org.apache.camel.impl.DefaultCamelContext.doStartOrResumeRoutes(DefaultCamelContext.java:2091)
at org.apache.camel.impl.DefaultCamelContext.doStartCamel(DefaultCamelContext.java:1951)
at org.apache.camel.impl.DefaultCamelContext.doStart(DefaultCamelContext.java:1777)
at org.apache.camel.support.ServiceSupport.start(ServiceSupport.java:61)
at org.apache.camel.impl.DefaultCamelContext.start(DefaultCamelContext.java:1745)
at org.apache.camel.spring.SpringCamelContext.maybeStart(SpringCamelContext.java:254)
at org.apache.camel.spring.SpringCamelContext.onApplicationEvent(SpringCamelContext.java:120)
... 22 more
Tôi đang cố gắng tìm ra cho hai ngày qua, Tại sao tôi đang nhận được lỗi này. Thực sự mong được các giải pháp của bạn. Cảm ơn trước ..