Flutter WebSocket STOMP Test

Flutter Dart Code Beispiel:

import 'package:stomp_dart_client/stomp.dart';
import 'package:stomp_dart_client/stomp_config.dart';
import 'package:stomp_dart_client/stomp_frame.dart';
import 'dart:convert';

// RICHTIG: ws:// für WebSocket verwenden
final stompClient = StompClient(
  config: StompConfig(
    url: 'ws://192.168.180.196:8080/websocket',  // ws:// NICHT http://
    onConnect: (StompFrame frame) {
      print('Connected to STOMP server');
      
      // Nachrichten abonnieren
      stompClient.subscribe(
        destination: '/topic/messages',
        callback: (StompFrame frame) {
          print('Received: ${frame.body}');
        },
      );
    },
    onWebSocketError: (dynamic error) => print('WebSocket Error: $error'),
    onStompError: (StompFrame frame) => print('Stomp Error: ${frame.body}'),
    onDisconnect: (StompFrame frame) => print('Disconnected'),
  ),
);

// Verbindung aktivieren
stompClient.activate();

// Nachricht senden
void sendMessage(String content) {
  stompClient.send(
    destination: '/app/message',
    body: jsonEncode({
      'content': content,
      'sender': 'FlutterApp',
    }),
  );
}
    

Verfügbare Endpunkte:

• ws://192.168.180.196:8080/websocket - Native WebSocket (empfohlen für Flutter)
• ws://192.168.180.196:8080/stomp - Alternative WebSocket Endpunkt
• http://192.168.180.196:8080/ws - SockJS Endpunkt (nur für Browser)

Häufiger Fehler:

FALSCH: http://192.168.180.196:8080/websocket

RICHTIG: ws://192.168.180.196:8080/websocket