Android應用經常會和服務器端交互，這就需要手機客戶端發送網絡請求，下面介紹四種常用網絡 請求方式，我這邊是通過Android單元測試來完成這四種方法的，還不清楚Android的單元測試的同學們請看Android開發技巧總結中的 Android單元測試的步驟一文。
java.net包中的HttpURLConnection類
Get方式：
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// Get方式請求 public static void requestByGet() throws Exception { String path = "https://reg.163.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：
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// Post方式請求 public static void requestByPost() throws Throwable { String path = "https://reg.163.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：
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// HttpGet方式請求 public static void requestByHttpGet() throws Exception { String path = "https://reg.163.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：
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// HttpPost方式請求 public static void requestByHttpPost() throws Exception { String path = "https://reg.163.com/logins.jsp"; // 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"); } } |
以上是一些部分代碼，測試的時候在測試類中運行對應的測試方法即可。
原文鏈接：http://blog.csdn.net/zuolongsnail/archive/2011/04/29/6373051.aspx