Android Http request framework 1: Get and Post requests, androidget

Android Http request framework 1: Get and Post requests, androidget

1. HttpUtil

Package com. app. android01; import java. io. bufferedReader; import java. io. IOException; import java. io. inputStream; import java. io. inputStreamReader; import java.net. httpURLConnection; import java.net. URL; import java. util. arrayList; import java. util. list; import org. apache. http. httpResponse; import org. apache. http. nameValuePair; import org. apache. http. client. clientProtocolException; import org. apache. http. clien T. httpClient; import org. apache. http. client. entity. urlEncodedFormEntity; import org. apache. http. client. methods. httpPost; import org. apache. http. impl. client. defaultHttpClient; import org. apache. http. message. basicNameValuePair; import org. apache. http. params. coreConnectionPNames; import org. apache. http. protocol. HTTP; import org. apache. http. util. entityUtils; public class HttpUtil {/*** get request * @ param httpUr L * @ return * @ throws */public String httpGet (String httpUrl) {String result = ""; try {BufferedReader reader = null; StringBuffer sbf = new StringBuffer (); URL url = new URL (httpUrl); HttpURLConnection connection = (HttpURLConnection) url. openConnection (); // set the timeout value to 10 s. setConnectTimeout (10000); // sets the request method connection. setRequestMethod ("GET"); connection. connect (); InputStream Is = connection. getInputStream (); reader = new BufferedReader (new InputStreamReader (is, "UTF-8"); String strRead = null; while (strRead = reader. readLine ())! = Null) {sbf. append (strRead); sbf. append ("\ r \ n");} reader. close (); result = sbf. toString ();} catch (Exception e) {e. printStackTrace ();} return result;}/*** httpPost Request * @ param httpUrl * @ return */public String httpPost (String httpUrl) {String result = ""; // Step 1: Create an HttpPost object HttpPost httpPost = new HttpPost (httpUrl ); // set the http post request parameters using the NameValuePair Object List <NameValuePair> params = new ArrayList <NameValuePair> (); params. add (new BasicNameValuePair ("action", "downloadAndroidApp"); params. add (new BasicNameValuePair ("packageId", "89dcb664-50a7-4bf2-aeed-49c08af6a58a"); params. add (new BasicNameValuePair ("uuid", "test_ok1"); HttpResponse httpResponse = null; try {// set the httpPost request parameter httpPost. setEntity (new UrlEncodedFormEntity (params, HTTP. UTF_8); HttpClient httpClient = new DefaultHttpClient (); // The request times out for 10 s httpClient. getParams (). setParameter (CoreConnectionPNames. CONNECTION_TIMEOUT, 10000); // read timeout 10 s httpClient. getParams (). setParameter (CoreConnectionPNames. SO_TIMEOUT, 10000); httpResponse = httpClient.exe cute (httpPost); if (httpResponse. getStatusLine (). getStatusCode () = 200) {// step 3, use the getEntity method to return the result = EntityUtils. toString (httpResponse. getEntity () ;}} catch (ClientProtocolException e) {e. printStackTrace ();} catch (IOException e) {e. printStackTrace ();} return result ;}}

 

2. asynchronous requests

1/** 2 * asynchronous request 3 * @ author admin 4 */5 class GetData extends AsyncTask <String, Integer, string> {6 7 @ Override 8 protected String doInBackground (String... params) {9 HttpUtil httpUtil = new HttpUtil (); 10 String resutl = httpUtil. httpGet (params [0]); 11 if (resutl = null) {12 return ""; 13} 14 return resutl; 15} 16 17 @ Override18 protected void onPostExecute (String result) {19 super. onPostExecute (result); 20} 21}

 

 

Android Http request framework 2: network requests of the xUtils framework