Camel producerTemplate is not injected in spring MVC

问题

I'm using Spring MVC and Camel in my project, but encountering an issue that the producerTemplate is not able to be Autowired. Please check details below,

File web.xml:

<context-param>
 <param-name>contextConfigLocation</param-name>
   <param-value>/WEB-INF/dispatcher-servlet.xml</param-value>
</context-param>

File ispatcher-servlet.xml

<import resource="camel-config.xml"/>

File camel-config.xml, define camelContext

<context:component-scan base-package="com.myproject.camel.routes"/>
<camelContext xmlns="http://camel.apache.org/schema/spring" id="myproject.camel">
     <contextScan/>
 <template id="producerTemplate"/>
</camelContext>

And here is my JAVA class:

package com.myproject.connector.camel;
public class CamelConnectorImp{
    @Autowired
    private ProducerTemplate producerTemplate; //This is null after starting
    producerTemplate.requestBodyAndHeaders(serviceEndpoint,request, headers);
...
}

Can someone point out what I'm doing wrong please?

回答1:

You probably need to make sure CammelConnectorImp is a known bean to Spring.

@Bean
public class CamelConnectorImp{ ..

(Update:)

You should probably scan for this pojo as well, so that the @Bean gets picked up:

<context:component-scan base-package="com.myproject.camel.routes,com.myproject.connector.camel"/>

or something similar will probably help.

回答2:

OK I finally figured it out. The cause was that, I didn't use the bean in Application context, instead, I created that connector by this way,

IConnector connector = new CamelConnectorImp();

This is wrong, no wonder that camelContext is not in this instance.

My fault.

来源：https://stackoverflow.com/questions/13265703/camel-producertemplate-is-not-injected-in-spring-mvc

标签

Spring

model-view-controller

apache-camel