publicclassSessionServletextendsHttpServlet{protectedvoidgetAttribute(HttpServletRequestrequest,HttpServletResponseresponse)throwsException{// 向session域中保存数据request.getSession().setAttribute("key","value")// 获取session域的数据Objectkey=resuest.getSession().getAttribute("key")// 获取sessionHttpSessionses...
Object msg = session.getAttribute("msg"); System.out.println(msg); 1. 2. 3. 4. *移除session HttpSession session = req.getSession(); System.out.println("Demo03Servlet" +session.getId()); session.removeAttribute("msg"); 1. 2. 3. 2,Session案例之登录 登录功能–UserDao public class User...
@Configuration@EnableSchedulingpublicclassRedisHttpSessionConfigurationextendsSpringHttpSessionConfigurationimplementsBeanClassLoaderAware,EmbeddedValueResolverAware,ImportAware,SchedulingConfigurer{@BeanpublicRedisOperationsSessionRepositorysessionRepository() {RedisTemplate<Object,Object> redisTemplate = createRedisTemplate();R...
public Object getSession(HttpServletRequest request) { HttpSession session = request.getSession(false); String id = session.getId(); System.out.println("获取Session sessionid:信息" + session.getId()); Object value = session.getAttribute("name"); return value; } public static void main(String[...
1@GetMapping("/change-username")2public StringsetCookie(HttpServletResponse response){3// 创建一个 cookie4Cookie cookie=newCookie("username","Jovan");5//设置 cookie过期时间6cookie.setMaxAge(7*24*60*60);// expires in 7 days7//添加到 response 中8response.addCookie(cookie);910return"Username...
l void setAttribute(String name, Object value):用来存储一个对象,也可以称之为存储一个域属性,例如:session.setAttribute(“xxx”, “XXX”),在session中保存了一个域属性,域属性名称为xxx,域属性的值为XXX。请注意,如果多次调用该方法,并且使用相同的name,那么会覆盖上一次的值,这一特性与Map相同; ...
说明:下面出现的Session是Tomcat内定义的一个接口,而我们通常所说的Session,是jakarta.servlet.http(或java.servlet.http)中定义的HttpSession接口,在Tomcat中它们有一个共同的实现类为StandardSession,通过门面模式,最终实际操作的都是StandardSession对象。 在Tomcat中,主要由ManagerBase负责维护Session对象,源码如下,可以看...
概述：将Session信息直接存储在Cookie中，每次请求都会自动携带。代码实现：// 假设我们使用Servlet API ...
According to the Java Servlet API, which WebLogic Server implements and supports, each servlet can access a server-side session by using itsHttpSessionobject. You can access anHttpSessionobject in theservice()method of the servlet by using theHttpServletRequestobject with the variablerequestvariable...
HttpServletRequest // 获取session对象HttpSessiongetSession() HttpSession // 在session中保存数据voidsetAttribute(String name, Object value)// 从session中获取数据。注意:返回值是Object,因此需要将返回值强制转换才能方便使用ObjectgetAttribute(String name)// 从session中移除数据voidremoveAttribute(String name) ...