web 应用通常会引入 session，用来在服务端和客户端之间保存一系列动作/消息的状态，比如网上购物维护 user 登录信息直到 user 退出。springmvc存取session的两种方法，具体如下：
方法一：使用servlet-api
@controller public class managercontroller { @resource private managerservice managerserviceimpl; @requestmapping(value = "manager/login.do",method = requestmethod.get) public modelandview login(managermodel managermodel,httpsession httpsession){ managermodel manager = managerserviceimpl.getmanager(managermodel); if(manager!=null){ manager.setpassword(""); httpsession.setattribute("manager", manager); return new modelandview(new redirectview("../admin/main.jsp")); }else{ return new modelandview(new redirectview("../admin/login.jsp")); } } @requestmapping(value = "manager/logout.do",method = requestmethod.get) public string logout(httpsession httpsession){ httpsession.getattribute("manager"); return "success"; } }
方法二：使用sessionattributes
@controller @sessionattributes("manager") public class managercontroller { @resource private managerservice managerserviceimpl; @requestmapping(value = "manager/login.do",method = requestmethod.get) public modelandview login(managermodel managermodel,modelmap model){ managermodel manager = managerserviceimpl.getmanager(managermodel); if(manager!=null){ manager.setpassword(""); model.addattribute("manager", manager); return new modelandview(new redirectview("../admin/main.jsp")); }else{ return new modelandview(new redirectview("../admin/login.jsp")); } } @requestmapping(value = "manager/logout.do",method = requestmethod.get) public string logout(@modelattribute("manager")managermodel managermodel){ return "success"; } }
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更多springmvc存取session的两种方法。