依赖注入在grails 2.3.7版本中不起作用

Question

创建了grails 2.3.7 rest应用程序，其中控制器中未发生服务的自动装配，下面是controller和service的代码，都在grails-app文件夹下，下面是目录结构的链接。

        package com.peelworks

            class OneSFController extends grails.rest.RestfulController{

                OneSFService oneSFService;
                static responseFormats = ['json'];
                def List<Salesman> getSalesMan(){

                   return oneSFService.getSalesMan(); // this is where 
    the oneSFService is null
                }

            }

         - Service code

    package com.peelworks
    import com.peelworks.dao.OneSFDAO
    class OneSFService {

         OneSFDAO oneSFDAO;

        List<Salesman> getSalesMan(){
            return oneSFDAO.getSalesMan(); // here the onseSFDAO is also null
        }
    }