使用 ServerEndpoint 时获取客户端 IP 地址

Question

意味着，它将从本地网络中的许多用户那里获得连接。我怎样才能获得每个连接的IP地址？我用的是JSR356.

@ServerEndpoint(value = "/ws/example")
public class ExampleServlet {

     private static final AtomicInteger connectionIds = new AtomicInteger(0);
     private static final Set<ExampleServlet> connections = new CopyOnWriteArraySet<>();
     private Session session;

     @OnOpen
     public void start(Session session) {
         this.session = session;
         connections.add(this);
     }

     @OnClose
     public void end() {
     }

     @OnMessage
     public void incoming(String message) {
     }

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

Answer 1

这是针对 spring 的 websocket @覆盖 public void afterConnectionEstablished(WebSocketSession session) 抛出异常{ System.out.println("connectionestablished!"+session.getLocalAddress());
}

Answer 2

遗憾的是，JSR356 Websocket 规范不公开客户端 IP 地址。解决方案，如何破解这个，我在那里找到：JSR-356 WebSockets with Tomcat - How to limit connections within single IP address?

使用 ServerEndpoint 时获取客户端 IP 地址

Getting client IP ADDRESS when using ServerEndpoint

java-websocket

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