/*
     * Function  :   傳送Post請求到伺服器
     * Param     :   params請求體內容，encode編碼格式
     * Author    :   部落格園-依舊淡然
     */
    public static String submitPostData(Map<String, String> params, String encode) {
        
        byte[] data = getRequestData(params, encode).toString().getBytes();　　　　//獲得請求體
 

        try {            
            HttpURLConnection httpURLConnection = (HttpURLConnection)url.openConnection();
            httpURLConnection.setConnectTimeout(3000);        　　//設定連線超時時間
            httpURLConnection.setDoInput(true);                  //開啟輸入流，以便從伺服器獲取資料
            httpURLConnection.setDoOutput(true
 
);                 //開啟輸出流，以便向伺服器提交資料
            httpURLConnection.setRequestMethod("POST");    　　　 //設定以Post方式提交資料
            httpURLConnection.setUseCaches(false);               //使用Post方式不能使用快取
            //設定請求體的型別是文字型別
            httpURLConnection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
            
 
//設定請求體的長度
            httpURLConnection.setRequestProperty("Content-Length", String.valueOf(data.length));
            //獲得輸出流，向伺服器寫入資料
            OutputStream outputStream = httpURLConnection.getOutputStream();
            outputStream.write(data);
            
            int response = httpURLConnection.getResponseCode();            //獲得伺服器的響應碼
            if(response == HttpURLConnection.HTTP_OK) {
                InputStream inptStream = httpURLConnection.getInputStream();
                return dealResponseResult(inptStream);                     //處理伺服器的響應結果
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
        return "";
    }