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WebSocket之获取HttpSession_html/css_WEB-ITnose

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2016-06-21 09:00:221443browse

WebSocket之获取HttpSession

由于WebSocket与Http协议的不同,故在使用常用的HttpSession方面就存在了一些问题。通过google翻阅到了在onOpen方法下使用HttpSession的方法。

新建一个GetHttpSessionConfigurator类并继承Configurator类

package per.zww.web;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) {        // TODO Auto-generated method stub        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);    }
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