Spring boot websocket integration issues | Java Community | Help. Code. Learn. | Page 1

mellow kindleBOT Jan 11, 2025, 9:30 PM

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humble ridge Jan 11, 2025, 9:31 PM

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What exactly happens when connecting via websockets? Is the connection rejected? Any error anywhere? Where are you connecting to and how? Does it not like the path?

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Please also show the how you do it in postmap

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And it's probably also a good idea to edit your question and add it there

ancient escarp Jan 11, 2025, 9:36 PM

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humble ridge Please also show the how you do it in postmap

literally just use ws://[ip]:[port]/[that url from tutorial]
And it's just rejected, but when I'm doing the same but with launched final tutorial project everything is fine and it's connecting

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Error: Unexpected server response: 200
Handshake Details
Request Method: GET
Status Code: 200 
Request Headers
Sec-WebSocket-Version: 13
Sec-WebSocket-Key: Xogi5djhhRgL605D7e63Lg==
Connection: Upgrade
Upgrade: websocket
Sec-WebSocket-Extensions: permessage-deflate; client_max_window_bits
Host: 26.254.32.113:8090
Response Headers
Vary
0: Origin
1: Access-Control-Request-Method
2: Access-Control-Request-Headers
X-Content-Type-Options: nosniff
X-XSS-Protection: 0
Cache-Control: no-cache, no-store, max-age=0, must-revalidate
Pragma: no-cache
Expires: 0
X-Frame-Options: DENY
Content-Type: text/plain;charset=UTF-8
Content-Length: 19
Date: Sat, 11 Jan 2025 20:49:16 GMT

humble ridge Jan 11, 2025, 9:38 PM

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that doesn't look like rejected

ancient escarp Jan 11, 2025, 9:39 PM

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It's like didn't even connected

humble ridge Jan 11, 2025, 9:39 PM

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I think the issue is that Spring uses the Stomp protocol and postman uses raw websockets

ancient escarp Jan 11, 2025, 9:40 PM

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humble ridge I think the issue is that Spring uses the Stomp protocol and postman uses raw we...

But postman is connecting when I'm using project from tutorial

humble ridge Jan 11, 2025, 9:40 PM

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ancient escarp ``` Error: Unexpected server response: 200 Handshake Details Request Method: GET...

that output literally tells you that the server responded with something wanting to use websockets

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Can you try using stompjs as mentioned in the tutorial?

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Also is the tutorial using the same Spring version?

ancient escarp Jan 11, 2025, 9:42 PM

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humble ridge Can you try using stompjs as mentioned in the tutorial?

Tutorial 3.3.0 mine is 3.3.3
I did try but js is printing "cant connect to websocket" in console

humble ridge Jan 11, 2025, 9:44 PM

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ok so it seems like the server gives you an HTTP response

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Can you show the exact thing how you are doing it in postmap?

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Did you do the JS part using stompjs?

ancient escarp Jan 11, 2025, 9:47 PM

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humble ridge Can you show the exact thing how you are doing it in postmap?

Ye, wait a minute

humble ridge Jan 11, 2025, 9:47 PM

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Can you show the directory structure of your project?

ancient escarp Jan 11, 2025, 9:47 PM

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humble ridge Did you do the JS part using stompjs?

Yes, exactly stompjs

humble ridge Jan 11, 2025, 9:48 PM

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and ideally also show the logs

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ideally with logging.level.org.springframework.web.socket=TRACE

ancient escarp Jan 11, 2025, 9:51 PM

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ancient escarp Jan 11, 2025, 9:52 PM

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humble ridge ideally with `logging.level.org.springframework.web.socket=TRACE`

Is it from application.proporties?

humble ridge Jan 11, 2025, 9:52 PM

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yes

ancient escarp Jan 11, 2025, 9:54 PM

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humble ridge Jan 11, 2025, 9:54 PM

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Can you show the whole thing as text using a code block?

ancient escarp Jan 11, 2025, 9:56 PM

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📎 logs.txt

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text is too big for discord

humble ridge Jan 11, 2025, 9:57 PM

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ancient escarp

Is that your local IP?

ancient escarp Jan 11, 2025, 9:58 PM

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well actually it's my radmin vpn ip, but i also tried to change to localhost but it didnt work and project is working perfectly fine w vpn ip

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expect websockets

humble ridge Jan 11, 2025, 9:59 PM

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Can you connect to the HTTP endpoints via localhost?

ancient escarp Jan 11, 2025, 9:59 PM

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likes get and post?

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yes

humble ridge Jan 11, 2025, 9:59 PM

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and that works with that port?

ancient escarp Jan 11, 2025, 10:00 PM

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yes

humble ridge Jan 11, 2025, 10:00 PM

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Are there any logs printed when making the websocket request?

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Can you try making a GET request to the websocket URL?

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just to see what happens

ancient escarp Jan 11, 2025, 10:01 PM

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humble ridge Can you try making a GET request to the websocket URL?

humble ridge Jan 11, 2025, 10:01 PM

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ancient escarp

ok there's definuitely something configured incorrectly here

ancient escarp Jan 11, 2025, 10:01 PM

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its bc of homecontroller

@RestController
public class HomeController {

    @RequestMapping("/{path:[^\\.]*}") // Match all paths without a dot (e.g., /something but not /api/something)
    public String redirectToReact() {
        return "forward:/index.html"; // Forward to React's entry point
    }
}

humble ridge Jan 11, 2025, 10:02 PM

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that's what I wanted to check

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can you comment out that controller?

ancient escarp Jan 11, 2025, 10:02 PM

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so problem in it?

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ye

humble ridge Jan 11, 2025, 10:02 PM

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You cannot use forward: in @RestControllers
it looks like it matches the websocket URL and overwrites it

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so just comment it out and try again

ancient escarp Jan 11, 2025, 10:03 PM

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gosh

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its working

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first i tried it get me this

2025-01-12T01:02:53.486+03:00 TRACE 10356 --- [RpMap] [113-8090-exec-3] o.s.w.s.s.s.WebSocketHandlerMapping      : Mapped to HandlerExecutionChain with [org.springframework.web.socket.sockjs.support.SockJsHttpRequestHandler@7674f9d4] and 1 interceptors
2025-01-12T01:02:53.486+03:00 DEBUG 10356 --- [RpMap] [113-8090-exec-3] o.s.w.s.s.t.h.DefaultSockJsService       : Processing transport request: GET http://26.254.32.113:8090/gs-guide-websocket

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and i desabled sockJs

humble ridge Jan 11, 2025, 10:04 PM

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ancient escarp its working

Should I vote to close your SO question as typo/nonreproducable/resolved in a way unlikely to help future readers?

ancient escarp Jan 11, 2025, 10:04 PM

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and now its working

humble ridge Jan 11, 2025, 10:05 PM

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except you are deleting it ig

ancient escarp Jan 11, 2025, 10:05 PM

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i think i can delete it if you think this no info that can help to ppl

humble ridge Jan 11, 2025, 10:05 PM

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yeah just delete it

ancient escarp Jan 11, 2025, 10:06 PM

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thanks again

humble ridge Jan 11, 2025, 10:06 PM

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btw when asking questions like that on SO in the future: You have to provide a minimal reproducer

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like everything necessary to reproduce the issue

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for reasons like that

ancient escarp Jan 11, 2025, 10:06 PM

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like logs and etc?

humble ridge Jan 11, 2025, 10:07 PM

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the main important thing is that you provide everything necessary to reproduce it on a new project

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So before asking a question on SO (or before clicking on the post/submit button), you should create a new project, paste all the files from your question there and check whether you can really reproduce the issue with only the information in your question

ancient escarp Jan 11, 2025, 10:08 PM

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oh, ye thx, i'll remember it

humble ridge Jan 11, 2025, 10:08 PM

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and you should also very clearly specify what your expected and actual result is as well as how they are different

ancient escarp Jan 11, 2025, 10:08 PM

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got it

humble ridge Jan 11, 2025, 10:08 PM

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humble ridge So before asking a question on SO (or before clicking on the post/submit button)...

My template for it is

Please [edit] your question to include a [mre] so that readers can run your code to answer your question. This should include everything necessary to reproduce the issue you are having on a new project but not more (if something isn't necessary for reproducing the issue, please don't include it).

#Spring boot websocket integration issues