Android應用程序經常與服務器端交互,這需要移動客戶端發送網絡請求,以下是常見的網絡請求方式,武林技術頻道小編詳解Android開發中的幾種網絡請求方式,希望對你學習有幫助!
Java.NET包中的HttpURLConnection類
Get方式:
// Get方式請求 public static void requestByGet() throws Exception { String path = "http://m.survivalescaperooms.com/logins.jsp?id=helloworld&pwd=android"; // 新建一個URL對象 URL url = new URL(path); // 打開一個HttpURLConnection連接 HttpURLConnection urlConn = (HttpURLConnection) url.openConnection(); // 設置連接超時時間 urlConn.setConnectTimeout(5 * 1000); // 開始連接 urlConn.connect(); // 判斷請求是否成功 if (urlConn.getResponseCode() == HTTP_200) { // 獲取返回的數據 byte[] data = readStream(urlConn.getInputStream()); Log.i(TAG_GET, "Get方式請求成功,返回數據如下:"); Log.i(TAG_GET, new String(data, "UTF-8")); } else { Log.i(TAG_GET, "Get方式請求失敗"); } // 關閉連接 urlConn.disconnect(); } Post方式:
// Post方式請求 public static void requestByPost() throws Throwable { String path = "http://m.survivalescaperooms.com/logins.jsp"; // 請求的參數轉換為byte數組 String params = "id=" + URLEncoder.encode("helloworld", "UTF-8") + "&pwd=" + URLEncoder.encode("android", "UTF-8"); byte[] postData = params.getBytes(); // 新建一個URL對象 URL url = new URL(path); // 打開一個HttpURLConnection連接 HttpURLConnection urlConn = (HttpURLConnection) url.openConnection(); // 設置連接超時時間 urlConn.setConnectTimeout(5 * 1000); // Post請求必須設置允許輸出 urlConn.setDoOutput(true); // Post請求不能使用緩存 urlConn.setUseCaches(false); // 設置為Post請求 urlConn.setRequestMethod("POST"); urlConn.setInstanceFollowRedirects(true); // 配置請求Content-Type urlConn.setRequestProperty("Content-Type", "application/x-www-form-urlencode"); // 開始連接 urlConn.connect(); // 發送請求參數 DataOutputStream dos = new DataOutputStream(urlConn.getOutputStream()); dos.write(postData); dos.flush(); dos.close(); // 判斷請求是否成功 if (urlConn.getResponseCode() == HTTP_200) { // 獲取返回的數據 byte[] data = readStream(urlConn.getInputStream()); Log.i(TAG_POST, "Post請求方式成功,返回數據如下:"); Log.i(TAG_POST, new String(data, "UTF-8")); } else { Log.i(TAG_POST, "Post方式請求失敗"); } } org.apache.http包中的HttpGet和HttpPost類
Get方式:
// HttpGet方式請求 public static void requestByHttpGet() throws Exception { String path = "http://m.survivalescaperooms.com/logins.jsp?id=helloworld&pwd=android"; // 新建HttpGet對象 HttpGet httpGet = new HttpGet(path); // 獲取HttpClient對象 HttpClient httpClient = new DefaultHttpClient(); // 獲取HttpResponse實例 HttpResponse httpResp = httpClient.execute(httpGet); // 判斷是夠請求成功 if (httpResp.getStatusLine().getStatusCode() == HTTP_200) { // 獲取返回的數據 String result = EntityUtils.toString(httpResp.getEntity(), "UTF-8"); Log.i(TAG_HTTPGET, "HttpGet方式請求成功,返回數據如下:"); Log.i(TAG_HTTPGET, result); } else { Log.i(TAG_HTTPGET, "HttpGet方式請求失敗"); } } Post方式:
// HttpPost方式請求 public static void requestByHttpPost() throws Exception { String path = "http://m.survivalescaperooms.com/"; // 新建HttpPost對象 HttpPost httpPost = new HttpPost(path); // Post參數 List<NameValuePair> params = new ArrayList<NameValuePair>(); params.add(new BasicNameValuePair("id", "helloworld")); params.add(new BasicNameValuePair("pwd", "android")); // 設置字符集 HttpEntity entity = new UrlEncodedFormEntity(params, HTTP.UTF_8); // 設置參數實體 httpPost.setEntity(entity); // 獲取HttpClient對象 HttpClient httpClient = new DefaultHttpClient(); // 獲取HttpResponse實例 HttpResponse httpResp = httpClient.execute(httpPost); // 判斷是夠請求成功 if (httpResp.getStatusLine().getStatusCode() == HTTP_200) { // 獲取返回的數據 String result = EntityUtils.toString(httpResp.getEntity(), "UTF-8"); Log.i(TAG_HTTPGET, "HttpPost方式請求成功,返回數據如下:"); Log.i(TAG_HTTPGET, result); } else { Log.i(TAG_HTTPGET, "HttpPost方式請求失敗"); } } 以上就是武林技術頻道小編給大家分享的詳解Android開發中的幾種網絡請求方式,新手朋友們一定要好好閱讀,喜歡的話也可以幫忙分享出去哦。
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