Android的HttpUrlConnection類的GET和POST請求，

Android的HttpUrlConnection類的GET和POST請求，

 1  /** 2      * get方法使用 3      */ 4     private void httpGet() { 5         new Thread() { 6             @Override 7             public void run() {
　　　　　　　　　　　　//此處的LOGIN是請求地址後面是拼接的參數 8                 String path = LOGIN + "?phone=12345678900&password=123456"; 9                 URL url;10                 HttpURLConnection connection;11                 try {12                     url = new URL(path);13                     connection = (HttpURLConnection) url.openConnection();14                     connection.setConnectTimeout(4000);//設定連結逾時15                     connection.setRequestMethod("GET");//佈建要求方法16 17                     connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");//佈建要求體的內容，處處預設也是一樣表示請求的是常值內容18 19                     int responseCode = connection.getResponseCode();20                     if (responseCode == HttpURLConnection.HTTP_OK) {21                         InputStream inputStream = connection.getInputStream();22                         final String s = stremToString(inputStream);23 24                         runOnUiThread(new Runnable() {25                             @Override26                             public void run() {27                                 Toast.makeText(MainActivity.this, s, Toast.LENGTH_SHORT).show();28                             }29                         });30                         inputStream.close();31                     }32 33                 } catch (Exception e) {34                     e.printStackTrace();35                 }36             }37         }.start();38     }

 1    /** 2      * post方法 3      */ 4     private void httpPost(final Map<String, String> prams) { 5         new Thread() { 6             @Override 7             public void run() { 8                 if (prams == null) { 9                     runOnUiThread(new Runnable() {10                         @Override11                         public void run() {12                             Toast.makeText(MainActivity.this, "缺少參數!", Toast.LENGTH_SHORT).show();13                         }14                     });15                     return;16                 }17                 URL url;18                 HttpURLConnection connection;19                 try {20                     //拼接傳入的請求參數21                     StringBuffer buffer = new StringBuffer();22                     //讀取傳入的map集合裡參數23                     for (Map.Entry<String, String> entry : prams.entrySet()) {24                         String key = entry.getKey();25                         String value = entry.getValue();26                         //拼接參數 例如：phone = 12345678900 & password = 12345627                         buffer.append(key + "=" + URLEncoder.encode(value, "utf-8") + "&");28                     }29                     //此處是刪除末尾拼接的 & 符號30                     buffer.deleteCharAt(buffer.length() - 1);31                     //REGISTER 是我自己伺服器的一個測試請求地址32                     url = new URL(REGISTER);33                     connection = (HttpURLConnection) url.openConnection();34                     connection.setConnectTimeout(4000);35                     36                     //此處的輸出資料流表示  伺服器對客服端的響應輸出資料流 即InPutStream37                     //此處的輸入資料流表示 客服端向伺服器輸入資料即 OutPutStream38                     connection.setDoInput(true);//擷取伺服器的響應輸出資料流 此處預設是true 可以不用設定39                     connection.setDoOutput(true);//設定允許向服務其寫入資料，擷取向伺服器的輸入資料流。40                     connection.setRequestMethod("POST");41                     //此處設定向伺服器請求的內容 請求的是常值內容 預設是可以不用設定的42                     connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");43                     //設定向伺服器輸入的請求體長度44                     connection.setRequestProperty("Content-Length", String.valueOf(buffer.toString().getBytes().length));45                     //向伺服器寫入請求體46                     connection.getOutputStream().write(buffer.toString().getBytes());47                     //擷取請求狀態嗎 HttpURLConnection.HTTP_OK 為請求成功 寫200 也可以的48                     int responseCode = connection.getResponseCode();49                     if (responseCode == HttpURLConnection.HTTP_OK) {50                         InputStream inputStream = connection.getInputStream();51                         final String result = stremToString(inputStream);52                         runOnUiThread(new Runnable() {53                             @Override54                             public void run() {55                                 Toast.makeText(MainActivity.this, result, Toast.LENGTH_SHORT).show();56                             }57                         });58                         inputStream.close();59                     }60 61                 } catch (Exception e) {62                     e.printStackTrace();63                 }64             }65         }.start();66     }

 1  /** 2      * 把輸入資料流轉換成字串 3      * 4      * @param inputStream 5      * @return 6      * @throws IOException 7      */ 8     private String stremToString(InputStream inputStream) throws IOException { 9         ByteArrayOutputStream bos = new ByteArrayOutputStream();10         if (inputStream != null) {11             int len;12             byte[] bytes = new byte[1024];13             while ((len = inputStream.read(bytes)) != -1) {14                 bos.write(bytes, 0, len);15             }16             return bos.toString();17         } else {18             return "";19         }20     }

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