我正在尝试连接到网络套接字wss://ws-feed.gdax.com
我使用JavaScript（See here）工作，但我试图将连接服务器端移动到我的Spring Boot应用程序中。
到目前为止，我有：
@SpringBootApplication
public class DemoApplication implements CommandLineRunner {
private Logger LOG = LoggerFactory.getLogger(DemoApplication.class);
public static void main(String[] args) {
SpringApplication.run(DemoApplication.class, args);
}
@Override
public void run(String... args) throws Exception {
WebSocketContainer container = ContainerProvider.getWebSocketContainer();
container.setDefaultMaxTextMessageBufferSize(64*1024);
WebSocketClient simpleWebSocketClient = new StandardWebSocketClient(container);
List<Transport> transports = new ArrayList<>(1);
transports.add(new WebSocketTransport(simpleWebSocketClient));
SockJsClient sockJsClient = new SockJsClient(transports);
WebSocketStompClient stompClient = new WebSocketStompClient(sockJsClient);
stompClient.setMessageConverter(new MappingJackson2MessageConverter());
LOG.info("Connecting To [wss://ws-feed.gdax.com]");
StompSession session = stompClient.connect("wss://ws-feed.gdax.com", new GDAXHandler()).get();
}
private class GDAXHandler extends WebSocketHttpHeaders implements StompSessionHandler {
@Override
public void afterConnected(StompSession session, StompHeaders connectedHeaders) {
LOG.info("Connected");
String payload = "{\"type\": \"subscribe\",\"channels\":[{\"name\": \"ticker\",\"product_ids\": [\"ETH-EUR\"]}]\"}";
LOG.info("Sending [" + payload + "]");
session.send("/", payload);
}
@Override
public void handleException(StompSession session, StompCommand command, StompHeaders headers, byte[] payload, Throwable exception) {
LOG.error("Exception", exception);
}
@Override
public void handleTransportError(StompSession session, Throwable exception) {
LOG.error("Transport Error", exception);
}
@Override
public Type getPayloadType(StompHeaders headers) {
return String.class;
}
@Override
public void handleFrame(StompHeaders headers, Object payload) {
LOG.info("Frame [" + payload + "]");
}
}
}
如果我运行此应用程序，则输出为：
INFO Tomcat在端口上启动：8080（http）
INFO连接到[wss：//ws-feed.gdax.com]
INFO启动ApplicationContext时出错。要显示自动配置报告，请使用＆＃39; debug＆＃39;重新运行您的应用程序。启用。
错误传输错误org.springframework.messaging.simp.stomp.ConnectionLostException：连接已关闭
引起： org.springframework.messaging.simp.stomp.ConnectionLostException： 连接关闭 org.springframework.messaging.simp.stomp.DefaultStompSession.afterConnectionClosed（DefaultStompSession.java:487） 〜[spring-messaging-4.3.13.RELEASE.jar：4.3.13.RELEASE] at org.springframework.web.socket.messaging.WebSocketStompClient $ WebSocketTcpConnectionHandlerAdapter.afterConnectionClosed（WebSocketStompClient.java:354） 〜[spring-websocket-4.3.13.RELEASE.jar：4.3.13.RELEASE] at org.springframework.web.socket.sockjs.client.AbstractClientSockJsSession.afterTransportClosed（AbstractClientSockJsSession.java:324） 〜[spring-websocket-4.3.13.RELEASE.jar：4.3.13.RELEASE] at org.springframework.web.socket.sockjs.client.WebSocketTransport $ ClientSockJsWebSocketHandler.afterConnectionClosed（WebSocketTransport.java:172） 〜[弹簧的WebSocket-4.3.13.RELEASE.jar：4.3.13.RELEASE] ...
它甚至从未进入Connected状态。我做错了什么？
答案 0 :(得分：4)
解决方案（感谢@ArtemBilan）是摆脱STOMP并使用基本的Web Socket，例如。
@SpringBootApplication
public class DemoApplication implements CommandLineRunner {
private Logger LOG = LoggerFactory.getLogger(DemoApplication.class);
public static void main(String[] args) {
SpringApplication.run(DemoApplication.class, args);
}
@Override
public void run(String... args) {
LOG.info("Connecting To [wss://ws-feed.gdax.com]");
WebSocketConnectionManager connectionManager = new WebSocketConnectionManager(new StandardWebSocketClient(), new GDAXWebSocketHandler(), "wss://ws-feed.gdax.com");
connectionManager.start();
}
private class GDAXWebSocketHandler extends TextWebSocketHandler {
@Override
public void handleTextMessage(WebSocketSession session, TextMessage message) {
LOG.info("Message Received [" + message.getPayload() + "]");
}
@Override
public void afterConnectionEstablished(WebSocketSession session) throws Exception {
LOG.info("Connected");
String payload = "{\"type\": \"subscribe\",\"channels\":[{\"name\": \"ticker\",\"product_ids\": [\"ETH-EUR\"]}]}";
LOG.info("Sending [" + payload + "]");
session.sendMessage(new TextMessage(payload));
}
@Override
public void handleTransportError(WebSocketSession session, Throwable exception) {
LOG.error("Transport Error", exception);
}
@Override
public void afterConnectionClosed(WebSocketSession session, CloseStatus status){
LOG.info("Connection Closed [" + status.getReason() + "]");
}
}
}
输出日志：
INFO Tomcat started on port(s): 8080 (http)
INFO Connecting To [wss://ws-feed.gdax.com]
INFO Starting WebSocketConnectionManager
INFO Connecting to WebSocket at wss://ws-feed.gdax.com
INFO Started DemoApplication in 2.324 seconds (JVM running for 3.076)
INFO Connected
INFO Sending [{"type": "subscribe","channels":[{"name": "ticker","product_ids": ["ETH-EUR"]}]}]
INFO Successfully connected
INFO Message Received [{"type":"ticker","sequence":569701928,"product_id":"ETH-EUR","price":"641.65000000","open_24h":"465.26000000","volume_24h":"100991.88666517","low_24h":"641.65000000","high_24h":"657.17000000","volume_30d":"1129037.16627038","best_bid":"641.59","best_ask":"641.65"}]
INFO Message Received [{"type":"subscriptions","channels":[{"name":"ticker","product_ids":["ETH-EUR"]}]}]
INFO Message Received [{"type":"ticker","sequence":569702018,"product_id":"ETH-EUR","price":"641.65000000","open_24h":"465.26000000","volume_24h":"100969.00195695","low_24h":"641.65000000","high_24h":"657.17000000","volume_30d":"1129014.28156216","best_bid":"641.64","best_ask":"641.73","side":"buy","time":"2018-02-07T09:07:49.556000Z","trade_id":2980644,"last_size":"1.00879065"}]