我試圖在更改任何屬性後觀察@SessionScoped組件。 HttpSessionAttributeListener不會觸發cdi託管組件的更改。cdi觀察會話scoped bean已更改
@SuppressWarnings("serial")
@SessionScoped
public class TestSession implements Serializable {
private User user;
public TestSession() {
}
public User getUser() {
return user;
}
public void setUser(User user) {
this.user = user;
}
}
一個例子的Servlet:
@SuppressWarnings("serial")
@WebServlet(name = "demo", urlPatterns = "/demo")
public class DemoServlet extends HttpServlet {
private static final Logger logger = LoggerFactory.getLogger(DemoServlet.class);
@Inject
private TestSession testSession;
@Override
protected void doGet(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse)
throws ServletException, IOException {
User user = new User(1L,new Role(1L));
user.setId(RandomUtils.nextLong());
testSession.setUser(user); //listen that component change something
RequestDispatcher dispatcher = getServletContext().getRequestDispatcher("/WEB-INF/jsp/demo.jsp");
dispatcher.forward(httpServletRequest, httpServletResponse);
}
}
是A一路聽,當組件改變任何屬性?任何人都有辦法做到這一點?
重要說明:我沒有權限在TestSession java類或servlet上重寫或添加代碼。
你的類與TestSession和Servlet在同一場戰爭中? – Rouliboy