JAVA 过滤器获取不到session的值。

Question

在servlet设置的session值能获取的到。不知道哪个地方出错了。 // 获得在下面代码中要用的request,response,session对象
HttpServletRequest httpRequest = (HttpServletRequest) request;
HttpServletResponse httpResponse = (HttpServletResponse) response;
HttpSession session = httpRequest.getSession();
// 从session中获取用户信息
String email = (String) session.getAttribute("email");
System.out.println("过滤器获取邮箱值:" + email + "\n " + session.getAttribute("LoginFilter"));
System.out.println(httpRequest.getAttribute("email"));这是servlet的代码 String email = request.getParameter("email");
HttpSession session = request.getSession();
System.out.println("Session:"+session.getAttribute("email"));

Answer 1

你是没有把值存放到session吗,并没有在你的代码中看到session.setAttribute()方法