Spring未注入MessageSource

我在使用MessageSource和Spring时遇到问题。由于某种未知的原因（至少对我来说），我的

messageSource

对象没有被实例化

我有以下组成部分：

applicationContext.xml

...
<import resource="messageSource-ctx.xml" />
...
<context:component-scan base-package="com.foo.bar" />
...  

<beans ...>
    <bean id="messageSource" class="org.springframework.context.support.ResourceBundleMessageSource">
        <property name="basenames">
            <list>
                <value>backendErrorCodesMapping</value>
                <value>restErrorCodesMapping</value>
            </list>
        </property>
    </bean> 
</beans>

MessageSourceHelper.java

package com.foo.bar.util;

@Component
public class MessageSourceHelper {

    @Autowired
    private MessageSource messageSource;

    ...
}

package com.foo.bar.rest.exception

@Component
public abstract class GenericRestExceptionMapper{

    @Resource
    private MessageSourceHelper msh;

    ....
}

package com.foo.bar.rest.exception

@Provider
public class InvalidRequestExceptionMapper extends GenericRestExceptionMapper implements ExceptionMapper<InvalidRequestException> {

...

}

GenericRestExceptionMapper.java

package com.foo.bar.util;

@Component
public class MessageSourceHelper {

    @Autowired
    private MessageSource messageSource;

    ...
}

package com.foo.bar.rest.exception

@Component
public abstract class GenericRestExceptionMapper{

    @Resource
    private MessageSourceHelper msh;

    ....
}

package com.foo.bar.rest.exception

@Provider
public class InvalidRequestExceptionMapper extends GenericRestExceptionMapper implements ExceptionMapper<InvalidRequestException> {

...

}

InvalidRequestExceptionMapper.java

package com.foo.bar.util;

@Component
public class MessageSourceHelper {

    @Autowired
    private MessageSource messageSource;

    ...
}

package com.foo.bar.rest.exception

@Component
public abstract class GenericRestExceptionMapper{

    @Resource
    private MessageSourceHelper msh;

    ....
}

package com.foo.bar.rest.exception

@Provider
public class InvalidRequestExceptionMapper extends GenericRestExceptionMapper implements ExceptionMapper<InvalidRequestException> {

...

}

包com.foo.bar.rest.exception
@提供者
公共类InvalidRequestExceptionMapper扩展GenericRequestExceptionMapper实现ExceptionMapper{
...
}

一旦发生

InvalidRequestException

，它将由

InvalidRequestException映射程序使用继承的
msh
（MessageSourceHelper）进行“cougt”。问题是这个对象是空的，也就是说，它不是由Spring注入的

有什么问题吗？我感谢所有的帮助

提前感谢。
我认为您的
InvalidRequestExceptionMapper
应该有
@组件和
私有消息源帮助器msh应该有
@自动连线
什么是
@提供者
？您确定
InvalidRequestExceptionMapper
由Spring管理吗？谢谢Arun！这很有效！问题是
InvalidRequestExceptionMapper