Spring AOP注入PortletRequest

Question

我正在尝试将portletrequest注入到我的方面类中

@Autowired(required = true)
private PortletRequest request;

@Before("execution(* de.ac.mis.dao.*.getSessionFactory())")
public void setUsername() {
    System.out.println("Now I'm setting the username " + this.request);
}

只给了我一个

Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: 
No matching bean of type [javax.portlet.PortletRequest] found for dependency: 
expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}

异常

但是我可以自动连接HttpServletRequest --我是不是遗漏了什么？

Answer 1

好的，在一些实验之后解决了它，也许它对其他人也有用

@Before("execution(* de.ac.mis.dao.acDynamicUserSessionFactory.getSessionFactory())")
public void setUsername(JoinPoint joinPoint) {
    acDynamicUserSessionFactory dao = (acDynamicUserSessionFactory) joinPoint.getTarget();
    RequestAttributes requestAttributes = RequestContextHolder.currentRequestAttributes();
    String userName = "";
    if (requestAttributes instanceof PortletRequestAttributes) {
        PortletRequest request = ((PortletRequestAttributes) requestAttributes).getRequest();
        userName = request.getRemoteUser();
    } else if (requestAttributes instanceof ServletRequestAttributes) {
        HttpServletRequest request = ((ServletRequestAttributes) requestAttributes).getRequest();
        userName = request.getRemoteUser();
    }
    dao.setUserName(userName);
    this.log.debug("acUserSessionfactory was set for user: " + userName);
}

这些配置的重要之处在于，请求资源(portlets或servlets)必须在spring上下文中运行，否则此时没有requestattribute可用。

Answer 2

在看了JavaDocs之后，我选择了使用resolveReference，它声称：

至少:关键字"request“的HttpServletRequest/PortletRequest引用和关键字"session”的HttpSession/PortletSession引用。

示例代码：

RequestAttributes attrs = RequestContextHolder.getRequestAttributes();
// According to JavaDoc, PortletRequest should be available
PortletRequest request = (PortletRequest) attrs.resolveReference("request");