refactor: migrate WebSocket handler to manage-notify module

2026-03-14 10:31:12 +08:00
parent 5840a880e3
commit 4db2019d95
4 changed files with 7 additions and 86 deletions
@@ -0,0 +1,33 @@
+package cn.novalon.manage.notify.config;
+
+import cn.novalon.manage.notify.websocket.SysWebSocketHandler;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.core.Ordered;
+import org.springframework.web.reactive.HandlerMapping;
+import org.springframework.web.reactive.handler.SimpleUrlHandlerMapping;
+import org.springframework.web.reactive.socket.WebSocketHandler;
+import org.springframework.web.reactive.socket.server.support.WebSocketHandlerAdapter;
+
+import java.util.HashMap;
+import java.util.Map;
+
+@Configuration
+public class WebSocketConfig {
+
+    @Bean
+    public HandlerMapping webSocketHandlerMapping(SysWebSocketHandler webSocketHandler) {
+        Map<String, WebSocketHandler> map = new HashMap<>();
+        map.put("/ws", webSocketHandler);
+
+        SimpleUrlHandlerMapping handlerMapping = new SimpleUrlHandlerMapping();
+        handlerMapping.setOrder(Ordered.HIGHEST_PRECEDENCE);
+        handlerMapping.setUrlMap(map);
+        return handlerMapping;
+    }
+
+    @Bean
+    public WebSocketHandlerAdapter webSocketHandlerAdapter() {
+        return new WebSocketHandlerAdapter();
+    }
+}
@@ -0,0 +1,161 @@
+package cn.novalon.manage.notify.websocket;
+
+import com.fasterxml.jackson.core.type.TypeReference;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.scheduling.annotation.Scheduled;
+import org.springframework.stereotype.Component;
+import org.springframework.web.reactive.socket.WebSocketHandler;
+import org.springframework.web.reactive.socket.WebSocketSession;
+import reactor.core.publisher.Mono;
+
+import java.time.Duration;
+import java.time.LocalDateTime;
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+
+@Component
+public class SysWebSocketHandler implements WebSocketHandler {
+
+    private final Map<String, WebSocketSession> sessions = new ConcurrentHashMap<>();
+    private final Map<String, LocalDateTime> lastActivityTime = new ConcurrentHashMap<>();
+    private final ObjectMapper objectMapper = new ObjectMapper();
+
+    @Value("${websocket.idle-timeout:300s}")
+    private Duration idleTimeout;
+
+    @Value("${websocket.heartbeat-interval:30s}")
+    private Duration heartbeatInterval;
+
+    @Override
+    public Mono<Void> handle(WebSocketSession session) {
+        String userId = extractUserId(session);
+        lastActivityTime.put(userId, LocalDateTime.now());
+
+        return session.receive()
+                .doOnNext(message -> {
+                    String payload = message.getPayloadAsText();
+                    handleIncomingMessage(session, userId, payload);
+                    lastActivityTime.put(userId, LocalDateTime.now());
+                })
+                .doOnComplete(() -> {
+                    sessions.remove(userId);
+                    lastActivityTime.remove(userId);
+                    System.out.println("WebSocket session closed for user: " + userId);
+                })
+                .doOnError(error -> {
+                    sessions.remove(userId);
+                    lastActivityTime.remove(userId);
+                    System.err.println("WebSocket error for user " + userId + ": " + error.getMessage());
+                })
+                .then();
+    }
+
+    @Scheduled(fixedRate = 60000)
+    public void cleanupIdleConnections() {
+        LocalDateTime now = LocalDateTime.now();
+        lastActivityTime.entrySet().removeIf(entry -> {
+            LocalDateTime lastActivity = entry.getValue();
+            if (Duration.between(lastActivity, now).compareTo(idleTimeout) > 0) {
+                String userId = entry.getKey();
+                WebSocketSession session = sessions.get(userId);
+                if (session != null) {
+                    try {
+                        session.close();
+                        System.out.println("Closed idle WebSocket connection for user: " + userId);
+                    } catch (Exception e) {
+                        System.err.println("Error closing idle connection for user " + userId + ": " + e.getMessage());
+                    }
+                }
+                return true;
+            }
+            return false;
+        });
+    }
+
+    @Scheduled(fixedRate = 30000)
+    public void sendHeartbeat() {
+        sessions.forEach((userId, session) -> {
+            try {
+                if (session.isOpen()) {
+                    String heartbeatMessage = objectMapper.writeValueAsString(Map.of(
+                        "type", "heartbeat",
+                        "timestamp", System.currentTimeMillis()
+                    ));
+                    session.send(Mono.just(session.textMessage(heartbeatMessage))).subscribe();
+                }
+            } catch (Exception e) {
+                System.err.println("Error sending heartbeat to user " + userId + ": " + e.getMessage());
+            }
+        });
+    }
+
+    private String extractUserId(WebSocketSession session) {
+        String query = session.getHandshakeInfo().getUri().getQuery();
+        if (query != null && query.contains("userId=")) {
+            return query.split("userId=")[1].split("&")[0];
+        }
+        return session.getId();
+    }
+
+    private void handleIncomingMessage(WebSocketSession session, String userId, String payload) {
+        try {
+            Map<String, Object> message = objectMapper.readValue(payload, new TypeReference<Map<String, Object>>() {
+            });
+            String type = (String) message.get("type");
+
+            switch (type) {
+                case "ping":
+                    sendMessageToUser(userId, Map.of("type", "pong", "timestamp", System.currentTimeMillis()));
+                    break;
+                case "pong":
+                    lastActivityTime.put(userId, LocalDateTime.now());
+                    break;
+                case "subscribe":
+                    sessions.put(userId, session);
+                    lastActivityTime.put(userId, LocalDateTime.now());
+                    System.out.println("User " + userId + " subscribed to WebSocket");
+                    break;
+                case "heartbeat":
+                    lastActivityTime.put(userId, LocalDateTime.now());
+                    break;
+                default:
+                    System.out.println("Unknown message type: " + type);
+            }
+        } catch (Exception e) {
+            System.err.println("Error handling WebSocket message: " + e.getMessage());
+        }
+    }
+
+    public void sendMessageToUser(String userId, Object message) {
+        WebSocketSession session = sessions.get(userId);
+        if (session != null && session.isOpen()) {
+            try {
+                String json = objectMapper.writeValueAsString(message);
+                session.send(Mono.just(session.textMessage(json))).subscribe();
+            } catch (Exception e) {
+                System.err.println("Error sending message to user " + userId + ": " + e.getMessage());
+            }
+        }
+    }
+
+    public void broadcastMessage(Object message) {
+        String json;
+        try {
+            json = objectMapper.writeValueAsString(message);
+        } catch (Exception e) {
+            System.err.println("Error serializing broadcast message: " + e.getMessage());
+            return;
+        }
+
+        sessions.forEach((userId, session) -> {
+            try {
+                if (session.isOpen()) {
+                    session.send(Mono.just(session.textMessage(json))).subscribe();
+                }
+            } catch (Exception e) {
+                System.err.println("Error broadcasting to user " + userId + ": " + e.getMessage());
+            }
+        });
+    }
+}