Android: IOException with HttpGet request

Question

Im trying to connect to a server and than receive some data back in Json format. Here is my java code:

HttpClient client = new DefaultHttpClient();
HttpGet request = new HttpGet("https://my.server.com/validate/" + data);
request.setHeader("Accept", "application/json");
request.setHeader("X-AuthToken","my authorisation code");
HttpResponse response = client.execute(request);

I also have

<permission android:name="android.permission.INTERNET"></permission>

as a child of manifest (not application) in my manifest.xml

When I try to open the url in browser, I get the correct page but I dont get any data since it misses the authentication. I also have a good connection.

I've been trying to fix this for a few hours now, but I still get IOException at the line with client.execute(request)

java.net.UnknownHostException: my.server.com

Any ideas? :) Thanks!

try hitting a known site like `http://www.google.com` see if you get the same result, if so you know that the problem is with connecting to internet for some reason. If not then you know problem is with your specific server — FoamyGuy, Nov 29 '12 at 15:16
I tryed google, the same result. Im running on Android 2.3.3 — Tomáš 'Guns Blazing' Frček, Nov 29 '12 at 15:20
Oh ok, that shouldn't give a problem then. in 3.0 and higher you must put it in a Async task, else it won't work. But like I said, that is only in 3.0 and higher. — Bigflow, Nov 29 '12 at 15:22

score 5 · Accepted Answer · answered Nov 29 '12 at 15:24

5

Seems like you're missing uses-?

<uses-permission android:name="android.permission.INTERNET" />?

<permission> is used to declare a new permission. Docs

answered Nov 29 '12 at 15:24

dmon

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wow, that was pretty stupid of me...I usually write manifest file manualy, this time I used the Eclipse GUI for it...anyway, that fixed the problem, thanks! – Tomáš 'Guns Blazing' Frček Nov 29 '12 at 15:29
@Tomáš'GunsBlazing'Frček Inside of eclipse manifest GUI, on Permissions tab. After you click `Add...` you need to choose `uses-permission` which is the bottom on on the list – FoamyGuy Nov 29 '12 at 15:30
Yeah, it is unnecessarily confusing :/ – dmon Nov 29 '12 at 16:01

score 0 · Answer 2 · answered Nov 29 '12 at 15:12

0

Sorry if I'm missing something, but is my.server.com really a valid host? Did you forget to plug in the actual host?

answered Nov 29 '12 at 15:12

chinabuffet

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No, I have the real host in my code, I just put "my.server.com" here so it's clearer, since the real url is quite long – Tomáš 'Guns Blazing' Frček Nov 29 '12 at 15:15
So you replaced the actual host name in both the example Java code and the exception message? – chinabuffet Nov 29 '12 at 15:16
Also, when you access that page via URL in a browser, are you doing that from the mobile device or a separate computer? Might want to make sure the mobile device is on the same network connection. – chinabuffet Nov 29 '12 at 15:17
yes, the real url is: https://jep.staging.jochen-schweizer.de/rest/voucher/validate/ – Tomáš 'Guns Blazing' Frček Nov 29 '12 at 15:17
Im accesing it on the same phone im running the app – Tomáš 'Guns Blazing' Frček Nov 29 '12 at 15:18

score 0 · Answer 3 · answered Nov 29 '12 at 15:29

Besides the answers here, here are a few aditional suggestions

Try going to to URL in a browser
Check to make sure you have an internet connection on your device by using the browser
Try cleaning the project and trying again (this has done the trick for me several times) (Project -> Clean)

Android: IOException with HttpGet request

3 Answers3