spring security 3.1中spring注入的问题
配置如下
1. 先是action

//这样注入方便ajax在前台直接与action交互@Action(value = "teacherManagerAction"）public class TeacherManagerAction extends BaseAction {  ......  //这里假如我用的是get/set方法得到teacherService，是无法成功注入service的  //至于为什么，有待研究..  @Autowired  private ITeacherService teacherService;  ......}

2. 然后是service层

//类似方式的注入，也可以是 @Service，但是如果你的spring配置文件中有对service的bean配置，那就只能@Service("...")里面是配置的bean的id值@Service("teacherService")public class TeacherServiceImpl extends BaseServiceImpl implements ITeacherService {   ......   // 同样这里不能用get/set方法    @Autowired    private ITeacherDao teacherDao;  ......

}

3. 最后dao层

  //这里因为我继承了HibernateDaoSupport,所以在spring配置文件中配置dao对应的bean  //所以只能这么写  @Repository("teacherDao")  @Repository("teacherDao")  public class TeacherDaoImpl extends HibernateDaoSupport implements ITeacherDao {

4. 最后是配置文件

  <?xml version="1.0" encoding="UTF-8"?><beans:beans xmlns="http://www.springframework.org/schema/security"xmlns:beans="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xmlns:context="http://www.springframework.org/schema/context"xsi:schemaLocation="http://www.springframework.org/schema/beans              http://www.springframework.org/schema/beans/spring-beans-3.0.xsd         http://www.springframework.org/schema/security         http://www.springframework.org/schema/security/spring-security-3.1.xsd       http://www.springframework.org/schema/context    http://www.springframework.org/schema/context/spring-context-2.5.xsd       ">    <!-- 以上不一定要全部一样 context的几个是要的 -->    <!-- spring 注解注入的配置 -->    <context:annotation-config /><context:component-scan base-package="com.kcsj.dao.impl"> <context:include-filter type="regex"expression=".*DaoImpl" /></context:component-scan><context:component-scan base-package="com.kcsj.service.impl"><context:include-filter type="regex"expression=".*ServiceImpl" /></context:component-scan>  ......