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
– user902383, Commented Apr 11, 2017 at 9:08
I don't think it is a server problem as I successfully get json when I put the url into browser. — Kirill
– Kirill, Commented Apr 11, 2017 at 9:10
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
– Fildor, Commented Apr 11, 2017 at 9:16
You may need to add "Accept: application/json" in your request. — Steve Smith
– Steve Smith, Commented Apr 11, 2017 at 9:16

Kirill · Accepted Answer · 2017-04-12 15:47:05Z

0

I have added:

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

then I can successfully get the response.

answered Apr 12, 2017 at 15:47

Kirill

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