我试图在更改任何属性后观察@SessionScoped组件。 HttpSessionAttributeListener不会触发cdi托管组件的更改。cdi观察会话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;
}
}
一个例子的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一路听,当组件改变任何属性?任何人都有办法做到这一点?
重要说明:我没有权限在TestSession java类或servlet上重写或添加代码。
你的类与TestSession和Servlet在同一场战争中? – Rouliboy