Java Apache Camel Rest DSL DirectConsumerNotAvailableException

我已经使用servlet和SpringXML通过Springboot建立了一个ApacheCalmelRESTAPI。我使用JBoss EAP通过war文件部署API。以下是我参考的网站：

代码成功构建和部署。但是，当我尝试访问端点URL时(http://localhost:8080/camel-rest cxfrs jaxrs/api/customers？country=abc），我得到以下例外情况：

对/camel-rest-cxfrs-jaxrs/api/客户的异常处理请求： org.apache.camel.cameleExecutionException:在 在exchange上执行：exchange[ID localhost-

在 org.apache.camel.util.ObjectHelper.wrapCamelExecutionException（ObjectHelper.java:1846） 在 org.apache.camel.util.ExchangeHelper.extractResultBody（ExchangeHelper.java:713） 在 org.apache.camel.impl.DefaultProducerTemplate.extractResultBody（DefaultProducerTemplate.java:515） 在 org.apache.camel.impl.DefaultProducerTemplate.extractResultBody（DefaultProducerTemplate.java:511） 在 org.apache.camel.impl.DefaultProducerTemplate.requestBody（DefaultProducerTemplate.java:338） 位于org.test.MyServlet.doGet（MyServlet.java:50）

原因：org.apache.camel.component.DirectConsumerNotAvailableException:端点上没有可用的使用者：direct://start. Exchange[ID]本地主机-

我是否错过了什么，或者配置设置错误

下面是我的文件结构和源代码：

文件结构：

    <?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.springframework.org/schema/beans https://www.springframework.org/schema/beans/spring-beans.xsd        http://camel.apache.org/schema/spring https://camel.apache.org/schema/spring/camel-spring.xsd">
    <bean class="org.test.MyBean" id="helloBean"/>
    <camelContext id="camelContext-0476f574-9dab-47b1-89dd-e87e0c6ba735" xmlns="http://camel.apache.org/schema/spring">
        <restConfiguration component="servlet" bindingMode="auto"/>
        
        <rest path="/api/customers">
            <get>
                <route>
                    <from uri="direct:start"/>
                    <to uri="direct:start"/>
                </route>
            </get>
            <post>
                <route>
                    <to uri="file:output/customers"/>
                </route>
            </post>
        </rest>

        <rest path="/customers">
            <delete uri="{id}">
                <to uri="bean:helloBean?method=delete(${header.id})"/>
            </delete>
        </rest>
        <rest path="/getapi">
            <get uri="/search?country={country}">
                <to uri="bean:helloBean?method=byCountry(${header.country})"/>
            </get>
        </rest>
    </camelContext>
</beans>

jboss camel context.xml:

    <?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.springframework.org/schema/beans https://www.springframework.org/schema/beans/spring-beans.xsd        http://camel.apache.org/schema/spring https://camel.apache.org/schema/spring/camel-spring.xsd">
    <bean class="org.test.MyBean" id="helloBean"/>
    <camelContext id="camelContext-0476f574-9dab-47b1-89dd-e87e0c6ba735" xmlns="http://camel.apache.org/schema/spring">
        <restConfiguration component="servlet" bindingMode="auto"/>
        
        <rest path="/api/customers">
            <get>
                <route>
                    <from uri="direct:start"/>
                    <to uri="direct:start"/>
                </route>
            </get>
            <post>
                <route>
                    <to uri="file:output/customers"/>
                </route>
            </post>
        </rest>

        <rest path="/customers">
            <delete uri="{id}">
                <to uri="bean:helloBean?method=delete(${header.id})"/>
            </delete>
        </rest>
        <rest path="/getapi">
            <get uri="/search?country={country}">
                <to uri="bean:helloBean?method=byCountry(${header.country})"/>
            </get>
        </rest>
    </camelContext>
</beans>

MyBean.java

    @WebServlet(name = "HttpServiceServlet", urlPatterns = { "/*" }, loadOnStartup = 1)
    public class MyServlet extends HttpServlet {
        /**
         * 
         */
        private static final long serialVersionUID = 1L;
        @Resource(name = "java:jboss/camel/context/spring-context")
        private CamelContext camelContext = new DefaultCamelContext();
    
        @Override
        protected void doGet(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException {    
    
            try {
                camelContext.start();
            } catch (Exception e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
            String name = req.getParameter("country");
            ServletOutputStream out = res.getOutputStream();
            ProducerTemplate producer = camelContext.createProducerTemplate();
            String result = producer.requestBody("direct:start", name, String.class);
            out.print(result);
            //camelContext.stop();
        }
    }

public class MyBean {

    public String sayHello(String message) {        
       return "Hello " + message;   
    }

    public String delete(String id) {
       return "Deleted Customer = " + id;   
    }

    public String byCountry(String countryName) {
       System.out.println("Hello World " + countryName);        
       return "Hello World";    
    } 
}

---

谢谢。

我认为，眼前的问题是，您有一条“到”和“从”的路线端点是

direct:start

。我不确定这应该做什么。在同一个应用程序中，您似乎将camel-cxf内容与camel-rest内容混合在一起。使用servlet作为输入来实现camel-cxf的示例如下：我想离开camel-cxf，使用camel-rest DSL组件来代替。我主要使用下面的教程：但是，我不确定restConfiguration（）块将放在哪里；在MyServlet.java类中？