<img border="0" width="18" height="18" src="<%=basePath %>/style/images/top/user.png" /> <font style="font-size:11px; font-family:Microsoft YaHei"> ${usersession.name }

                <c:forEach items="${usersession.roles }" var="r">

                	${r.name }

                </c:forEach>

               </b></font>

			<%if(session.getAttribute("usersession")!=null){%>

				<input type="button"   value="Log Out" onclick="javascript:logout()" style="color:#2c3e50; font-size:12px;font-weight:bold; border-radius:3px; vertical-align:middle;height:20px;  width:70px; "/>

			<%}else {%>

				<input type="button"   value="Log In" onclick="javascript:login()" style="color:#2c3e50; font-size:12px;font-weight:bold; border-radius:3px; vertical-align:middle;height:20px;  width:70px; "/>

			<%} %>

<script>

		function logout(){

			$.getJSON("/portal/user/logout?rand="+Math.random(),function(data){

				if("success"==data.result){

					parent.location.href="/portal/home/index";

				}

				else{

					alert("logout failure!");

				}

			});

		}

		function login(){

			window.open("/portal/user/loginUI","_parent");

		}

	</script>

@RequestMapping("/login")

	public String login(String loginName, String password, HttpSession session,HttpServletRequest request){

		//session.invalidate();

		User user = userService.findByLoginNameAndPassword(loginName, password);

		if(user == null){

			request.setAttribute("loginError", "用户名或者密码错误");

			return "/userController/loginUI";

		}

		else{

			session.setAttribute("usersession", user);

		}

		return "/homeController/index";

	}

	@RequestMapping("/logout")

	public String logout( HttpSession session,HttpServletResponse response){

		session.removeAttribute("usersession");

		session.invalidate();

		JSONObject data = new JSONObject();

		try {

			data.put("result", "success");

		} catch (Exception e) {

			System.out.println(e.getMessage());

		}

		PrintWriter out = null;

		response.setCharacterEncoding("UTF-8");

		response.setContentType("text/html; charset=UTF-8");

	    try {

	    	out=response.getWriter();

	        out.write(data.toString());

	        out.flush();

			out.close();

			return null;

	    } catch (IOException e) {

	        e.printStackTrace();

	    }

		//return "/userController/logout";

		return "/homeController/index";

	}