Android HTTPで通信する（HTTPUrlConnection）

使わなくなってしまったんだけども備忘録で。
こちらを参考にしました。

onCreate

URL url = new URL("http://www.example.co.jp/index.html");
new HttpGetTask().execute(url);

class HttpGetTask extends AsyncTask<URL, Void, String> {
	@Override
	protected String doInBackground(URL... url) {
		String result = "";
		HttpURLConnection conn = null;
		try {
			conn = (HttpURLConnection) url[0].openConnection();
			conn.setReadTimeout(10000);
			conn.setConnectTimeout(15000);
			conn.setRequestMethod("GET");
			conn.setDoInput(true);
			conn.connect();
			int resp = conn.getResponseCode();
			// respを使っていろいろ
			result = readIt(conn.getInputStream());
		} catch(IOException e) {
			e.printStackTrace();
		} finally {
			if(conn != null) {
				conn.disconnect();
			}
		}
		return result;
	}

	public String readIt(InputStream stream) throws IOException, UnsupportedEncodingException {
		StringBuffer sb = new StringBuffer();
		String line = "";
		BufferedReader br = new BufferedReader(new InputStreamReader(stream, "UTF-8"));
		while((line = br.readLine()) != null){
			sb.append(line);
		}
		try {
			stream.close();
		} catch(Exception e) {
			e.printStackTrace();
		}
		return sb.toString();
	}

	@Override
	protected void onPostExecute(String resp){
		// onCreateとほぼ同じこと（Fragmentにデータを送る
		Bundle arguments = new Bundle();
		arguments.putString(ItemDetailFragment.ARG_ITEM_ID,
				getIntent().getStringExtra(ItemDetailFragment.ARG_ITEM_ID));
		arguments.putString("responseText", resp);
		ItemDetailFragment fragment = new ItemDetailFragment();
		fragment.setArguments(arguments);
		getFragmentManager().beginTransaction()
				.add(R.id.item_detail_container, fragment)
				.commit();
	}
}