[网络协议]Websocket http握手 cookie信息

// 连接服务端
String uri = "ws://localhost:8080/websocket";
System.out.println("Connecting to " + uri);
try {
    WebSocketContainer container = ContainerProvider.getWebSocketContainer();
    container.connectToServer(ClientSocket.class, URI.create(uri));
} catch (Exception e) {
    e.printStackTrace();
}

// 客户端接收类
@ClientEndpoint
public class ClientSocket {
    @OnOpen
    public void onOpen(Session session) { 
    }

    @OnMessage
    public void onMessage(String message) {
    }

    @OnError
    public void onError(Throwable t) {
    }
}

ClientSocket 可能需要继承 Endpoint，具体要看使用版本的情况

• webSocket 发送消息

session.getBasicRemote().sendText(message);

• webSocket 连接时 传递cookie 和header

public static Session connection(String uri, String cookieValue){
   Session session = null;
   try {
       WebSocketContainer container = ContainerProvider.getWebSocketContainer();
       ClientEndpointConfig cec = ClientEndpointConfig.Builder
               .create().configurator(new ClientEndpointConfig.Configurator() {
                   public void beforeRequest(Map<String, List<String>> headers) {
                       System.out.println("Setting user cookie in beforeRequest ...");
                       if(null != cookieValue && !cookieValue.isEmpty()){
                           ArrayList<String> value = new ArrayList<>();
                           value.add(cookieValue);
                           // 设置header，
                           headers.put("cookie", value);
                       }

                   }
               }).build();
       session = container.connectToServer(ClientSocket.class, cec, URI.create(uri));
   } catch (Exception e) {
       e.printStackTrace();
   }
   return session;
}