private void requestNetWorkGet() {
    try {
        //把要提交的資料放在url裡,accounts pwd為使用者輸入
        String path = "http://192.168.1.100:8080/web/LoginServer" + "?accounts = " + accounts + "&pwd = " + pwd;
        
        //建立一個Url
        URL url = new URL(path);
        
        //用url開啟連線
        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
        
        //設定請求引數
        conn.setRequestMethod("GET");
        conn.setReadTimeout(3000);
        conn.setConnectTimeout(3000);
        
        //獲取狀態碼
        int code = conn.getResponseCode();
        
        //* 2xxx成功 3xxx重定向 4xxx資源錯誤 5xxx伺服器錯誤
        if (code == 200) {
            //獲取伺服器返回的輸入流
            InputStream is = conn.getInputStream();
            
            //將溜流轉換成字串
            String text = StreamUtils.parseStream(is);
            
            //拿到這個text可以在子執行緒中用Toast彈出來，用來測試請求成功與否 這裡我就不繼續做了
        }
    } catch (Exception e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
        }
        return null;
    }
}public static String parseStream(InputStream is) {
    try {
        //記憶體輸出流 效率高
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        
        byte[] buffer = new byte[1024 * 8];
        int len = -1;
        
        //讀取流
        while ((len = is.read(buffer)) != -1) {
            baos.write(buffer, 0, len);
        }
        
        //拿到二進位制的資料
        byte[] byteArray = baos.toByteArray();
        
        //預設的編碼還是utf-8
        return new String(byteArray);

    } catch (Exception e) {
        e.printStackTrace();
        return null;
    }
}