Springboot websocket give 404 error in postman - spring-boot

Question

I am writing a chatroom service by springboot websocket.And i want to build multiple chatrooms for the clients base on the url.But it fail when testing postman with 404 not found
My controller :
#Controller
public class ChatroomController {
private final ChatroomService chatroomService;
private final SimpMessageSendingOperations messagingTemplate;
public ChatroomController(ChatroomService chatroomService, SimpMessageSendingOperations messagingTemplate) {
this.chatroomService = chatroomService;
this.messagingTemplate = messagingTemplate;
}
//send chat
#MessageMapping("/chat/{roomId}/sendMessage")
public ChatMessage sendMessage(#DestinationVariable String roomId, #Payload ChatMessage chatMessage) {
return chatroomService.sendMessage(roomId,chatMessage);
}
My service:
#Service
#Slf4j
public class ChatroomService {
private final ChatroomRepository chatroomRepository;
private final SimpMessageSendingOperations messagingTemplate;
public ChatroomService(ChatroomRepository chatroomRepository, SimpMessageSendingOperations messagingTemplate) {
this.chatroomRepository = chatroomRepository;
this.messagingTemplate = messagingTemplate;
}
public ChatMessage sendMessage(String roomId, ChatMessage chatMessage) {
//check chatroom is existed
chatMessage.setDateTime(Instant.now());
chatMessage.setOrder_id(roomId);
messagingTemplate.convertAndSend(format("/channel/%s", roomId), chatMessage);
ChatMessage savedchat=chatroomRepository.save(chatMessage);
return savedchat;
}
My config:
#Configuration
#EnableWebSocketMessageBroker
public class WebsocketConfig implements WebSocketMessageBrokerConfigurer {
#Override //register the endpoint
public void registerStompEndpoints(StompEndpointRegistry registry) {
registry.addEndpoint("/ws").withSockJS();
registry.addEndpoint("/ws");
//sockJs is for setting the STOMP =>send message to who(subscribe)
}
#Override //control with "/app" can access
public void configureMessageBroker(MessageBrokerRegistry registry) {
registry.setApplicationDestinationPrefixes("/Chatroom");
// '/topic' is access the broker
registry.enableSimpleBroker("/channel");
}
When i test with: ws://localhost:8084/ws/chat/12/sendMessage, it give the 404 error, but when i test with ws://localhost:8084/ws, it connected.Is there any problem on my url?
Error :
Invalid SockJS path '/chat/12' - required to have 3 path segments"

Answer 1

try configuring your application to run on a different port by adding this to your application.properties
server.port = 8081