websocket @ServerEndpoint注解形式开发 @OnOpen 如何获取httpSession

新建一个GetHttpSessionConfigurator类并继承Configurator类

import javax.servlet.http.HttpSession;import javax.websocket.HandshakeResponse;import javax.websocket.server.HandshakeRequest;import javax.websocket.server.ServerEndpointConfig;import javax.websocket.server.ServerEndpointConfig.Configurator;/* * 获取HttpSession *  */public class GetHttpSessionConfigurator extends Configurator {    @Override    public void modifyHandshake(ServerEndpointConfig sec, HandshakeRequest request, HandshakeResponse response) {        HttpSession httpSession = (HttpSession) request.getHttpSession();        sec.getUserProperties().put(HttpSession.class.getName(), httpSession);    }}

然后在@ServerEndpoint注解里面添加configurator属性

@ServerEndpoint(value="/socketTest",configurator=GetHttpSessionConfigurator.class)

在onOpen方法里加入参数 EndpointConfig config即可获取HttpSession

@OnOpen    public void onOpen(Session session,EndpointConfig config) {        HttpSession httpSession= (HttpSession) config.getUserProperties().get(HttpSession.class.getName());        System.out.println( httpSession.getAttribute("name"));        sessionMap.put(session.getId(), session);    }