Autowiring in servlet

[msaleh]

i want to use spring autowiring in servlet so here's my code:

    @Configurable
    public class ImageServlet extends HttpServlet {
    
       @Autowired
       private SystemPropertyDao systemPropertyDao;
    
       @Override
       public void init() throws ServletException {
    
    
       String imagePath = systemPropertyDao.findByID(StaticParam.CONTENT_FOLDER);
    
    }

while the

SystemPropertyDao

is annotated with

@Repository

and my applicationContext.xml:

    <context:component-scan base-package="com.basepackage" />
    <mvc:annotation-driven />
    <context:annotation-config />
    <context:spring-configured/>

my web.xml:

      <servlet>
        <servlet-name>imageServlet</servlet-name>
        <servlet-class>com.xeno.basepackage.ImageServlet</servlet-class>
      </servlet>
    
      <servlet-mapping>
        <servlet-name>imageServlet</servlet-name>
        <url-pattern>/myimages/*</url-pattern>
      </servlet-mapping>

sometimes the autowiring works and sometimes it doesn't, can anyone please tell me if i am missing something ?

[spgmx]

Do not manage servlets by spring - in your example you create 2 instances, one created by the servlet container and one by spring.
Just use a POJO with @Controller instead.