Httphostconnectionexception - Android

Question

I did in the Visual Studio Community 2013 a simple Web API to register a person and receive a person, and I’m trying to consume this service with an android app, I’m emulating the application by emulator Genymotion.

When he does the HttpResponse response = httpClient.execute(method); he brings me an exception HttpHostConnectionException saying that the connection to localhost was refused.

The code snippet is all ok, but if you want:

        protected String doInBackground(String... params)
        {
            HttpClient httpClient = new DefaultHttpClient();
            HttpUriRequest method = null;
            Gson gson = new Gson();

            try {
                if (metodo.toUpperCase() == "POST")
                {
                    HttpPost post = new HttpPost(url);
                    post.setEntity(new ByteArrayEntity(gson.toJson(object).getBytes()));

                    method = post;
                    method.setHeader("Content-Type", "application/json");
                }

                method.setHeader("Accept", "application/json");
                method.setHeader("Accept-Charset", "utf-8");

                HttpResponse response = httpClient.execute(method);

                status = response.getStatusLine().getStatusCode();

                return EntityUtils.toString(response.getEntity());
            }

I already went through the paperwork and checked the part Emulator Networking, and even changing from localhost for 10.0.2.2 it still doesn’t work, but when I change to 10.0.2.2 he brings me that the connection exceeded the time limit and not that it was refused.

How to proceed?

Answer 1

---

If you are referring to a localhost on your device use the http://10.0.2.2/ instead of the http://127.0.0.1/ or http://localhost / .

Because your Android emulator is running on a virtual machine (QEMU) and you cannot connect to a server that runs directly on your PC.

Therefore, your url should look like this:

HttpPost post = new HttpPost("http://10.0.2.2:8080/SOMENTE_EXEMPLO_QUALQUER");

Another thing, check if in your xml there is this permission:

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

Answer 2

Try opening the api from the genymotion browser using the computer’s network ip index (something like 192.168.x. x)