1.登录成功设置session
request.getSession().setAttribute("user", user);
2.前台test
<div class="col-md-3" style="padding-top:20px"> <ol class="list-inline"> <c:if test="${empty user }"> <li><a href="${pageContext.request.contextPath }/user?method=loginUI">登录</a></li> <li><a href="${pageContext.request.contextPath }/user?method=registUI">注册</a></li> </c:if> <c:if test="${not empty user }"> ${user.name }:你好 <li><a href="${pageContext.request.contextPath }/order?method=findAllByPage&currPage=1">我的订单</a></li> <li><a href="${pageContext.request.contextPath }/user?method=logOut">退出</a></li> </c:if> <li><a href="${pageContext.request.contextPath }/jsp/cart.jsp">购物车</a></li> </ol> </div>