Server returned HTTP response code: 500. Java app

Question

I am making simple request from Spring Boot app to URL.

URL url = new URL("http://...:8001/api/meta");

HttpURLConnection urlConnect = (HttpURLConnection) url.openConnection();
int code = urlConnect.getResponseCode(); 
...

code = 500. Then an error occurs:

Server returned HTTP response code: 500.

Also urlConnect.getErrorStream = null

If I put the url to browser then I successfully get json.

What should be done to fix the issue?

response code usually means, problem is on server side, so you should chech server side code to check what actually happened. — user902383, Apr 11 '17 at 09:08
I don't think it is a server problem as I successfully get json when I put the url into browser. — Kirill Ch, Apr 11 '17 at 09:10
Maybe track what actually goes on the line using NMAP or something alike. I guess there will be a difference between the requests from browser and URL.openConnection. — Fildor, Apr 11 '17 at 09:16
You may need to add "Accept: application/json" in your request. — Steve Smith, Apr 11 '17 at 09:16
Have you tried [URL.openStream()](https://docs.oracle.com/javase/8/docs/api/java/net/URL.html#openStream--) ? — Fildor, Apr 11 '17 at 09:18
Yes. I have already tried URL.openStream() - it also doesn't work. — Kirill Ch, Apr 11 '17 at 10:28

score 0 · Accepted Answer · answered Apr 12 '17 at 15:47

0

I have added:

urlConnect.setRequestProperty("Accept", "application/json");

then I can successfully get the response.

answered Apr 12 '17 at 15:47

Kirill Ch

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Server returned HTTP response code: 500. Java app

1 Answers1