ajax前后端数据交互 登录信息在其他页面显示

前端代码：

id:<input type="text" id="userid">
姓名：<input type="text" id="username">

<script>
		$(document).ready(function(){
			$.ajax({
		    url: "/mavenoa/LoginController/loginon",
		    type: "post",
		    success: function (data) {
		    	console.log(data);
		    	$("#userid").val(data.empId);
		    	$("#username").val(data.empName);
		    	
		    },error:function(e){
		    	alert(e)
		    }
		  });
		})
</script>

后端代码：

@Controller
@RequestMapping(value="/LoginController")
public class LoginRegisterController {
				@Autowired
				LoginService loginService;
				
				//登录
				@RequestMapping(value="/login")
				@ResponseBody
				public int login(String account, String password,HttpServletRequest request) {
					UserInfo userInfo = loginService.queryAllInfo(account);
					request.getSession().setAttribute("user", userInfo);
				}
				
					@RequestMapping(value="/loginon")
					@ResponseBody
					public UserInfo Loginon(HttpServletRequest request) {
						UserInfo userinfo = (UserInfo) request.getSession().getAttribute("user");
						return userinfo;
					}
}