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I am trying to test websocket without using socketjs library and also i don't want to add any stomp connection.

I am following the example from stackoverflow question: WebSocket with Sockjs & Spring 4 but without Stomp

So without stomp server , I have succeeded to connect via socketjs library with a url : ws://localhost:8080/greeting/741/0tb5jpyi/websocket

And now I want to remove the socketjs library to allow raw websocket connection(may be devices such as android,ios, etc...)

When I remove the parameter : .withSockJS(), I couldn't connect via websocket.

I tried the following URLs, but they didn't work:

ws://localhost:8080/greeting/394/0d7xi9e1/websocket not worked
ws://localhost:8080/greeting/websocket not worked
ws://localhost:8080/greeting/ not worked

which URL should i use to connect ?

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melihcoskun
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3 Answers3

17

I'm using websockets without STOMP in my project.

The following configuration works with spring-boot.

add spring boot websocket dependency in pom.xml

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-websocket</artifactId>
    <version>${spring-boot.version}</version>
</dependency>

Then add a class (here WebSocketServerConfiguration.java), which configures your websocket:

@Configuration
@EnableWebSocket
public class WebSocketServerConfiguration implements WebSocketConfigurer {

    @Autowired
    protected MyWebSocketHandler webSocketHandler;

    @Override
    public void registerWebSocketHandlers(WebSocketHandlerRegistry registry) {
        registry.addHandler(webSocketHandler, "/as");
    }
}

finally you can write your WebsocketHandler. Spring provides you different abstract classes for WebSocketHandlers (in main-package: org.springframework.web.socket.handler). My websocket is configured without STOMP and my client doesn't use socket.js. Therefore MyWebSocketHandler extends TextWebSocketHandler and overrides the methods for errors, opening and closing connections and received texts.

@Component
public class MyWebSocketHandler extends TextWebSocketHandler {
    ...

    @Override
    public void handleTransportError(WebSocketSession session, Throwable throwable) throws Exception {
        LOG.error("error occured at sender " + session, throwable);
        ...
    }

    @Override
    public void afterConnectionClosed(WebSocketSession session, CloseStatus status) throws Exception {
        LOG.info(String.format("Session %s closed because of %s", session.getId(), status.getReason()));

        ...
    }

    @Override
    public void afterConnectionEstablished(WebSocketSession session) throws Exception {
        LOG.info("Connected ... " + session.getId());

        ...
    }

    @Override
    protected void handleTextMessage(WebSocketSession session, TextMessage jsonTextMessage) throws Exception {
        LOG.debug("message received: " + jsonTextMessage.getPayload());
        ...
    }
}
duffy356
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  • thanks for your reply duffy356, I have the same configuration. I am trying to test my connection over chrome advanced rest client plugin. On my previous project I was able to connect websocket over that plugin. But the project was not spring based.Now I can not connect websocket via url : ws://localhost:8080/greeting/ . I couldnt find the right url to connect . have any idea? – melihcoskun Aug 28 '15 at 10:24
  • does the chrome advanced rest client plugin support websockets? – duffy356 Aug 28 '15 at 10:35
  • try to connect to your Server frome chrome console. – duffy356 Aug 28 '15 at 10:35
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    @duffy356 thanks for your answer. Is it possible to make websockets without STOMP work via ssl (wss)? – rvit34 Mar 17 '17 at 23:39
  • What tool I can use to test it? I used WebSocket Client and http://sockettest.sourceforge.net/ and nothing happen Only I got : Error parsing HTTP request header java.lang.IllegalArgumentException: Invalid character found in method name. HTTP method names must be tokens – Kamil Nękanowicz Jul 31 '17 at 08:27
  • @user3871754 These are Websockets, the tool you used is for TCP/UDP Sockets. The implementation of my answer is for Spring-boot with Tomcat as the WebServer. – duffy356 Jul 31 '17 at 08:46
  • What tool I can use to test it? – Kamil Nękanowicz Jul 31 '17 at 08:54
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    @rvit34 In order to configure the websocket with security you should simply activate the ssl mode in spring vial the property `server.ssl.enabled=true` the full configuration can be found in the link: baeldung.com/spring-boot-https-self-signed-certificate – Yassir Khaldi Nov 04 '20 at 12:15
8

You should use ws://localhost:8080/greeting:

new WebSocket('ws://localhost:8080/greeting')
Sergi Almar
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  • its worked with javascript but with advanced rest client , I have received 403 forbidden error. – melihcoskun Aug 28 '15 at 10:46
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    The default behaviour is to accept only same origin requests, this might give you a 403 when using the Advanced Rest Client. Configure the allowed origins on your endpoint: registry.addHandler(greetingHandler(), "/greeting").setAllowedOrigins("*"); – Sergi Almar Aug 28 '15 at 11:03
  • How to configure WebSocketConfigurer with security, I mean with something like new WebSocket('wss://localhost:8080/greeting'). I do not want to use stomp/sockjs as the client is third party where I do not have control and only option is plain TextWebSocketHandler for me – Chakradhar K Dec 26 '17 at 12:12
  • @Chakri In order to configure the websocket with security you should simply activate the ssl mode in spring vial the property `server.ssl.enabled=true` the full configuration can be found in the link: https://www.baeldung.com/spring-boot-https-self-signed-certificate – Yassir Khaldi Nov 04 '20 at 12:13
2

I also face the same situation on client side client canot connect to the server.

What works me is add bellow setAllowedOrigins("*") to the Custom Handler.

registry.addHandler(webSocketHandler, "/app").setAllowedOrigins("*");
dm2
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dev net
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