//通過地址獲取bitmap public Bitmap getBitmap(String path) { Bitmap bitmap = null; try { //封裝url URL url = new URL(path); //獲得httpurl連接對象 HttpURLConnection connection = (HttpURLConnection) url.openConnection(); //設置連接超時 connection.setConnectTimeout(5*1000); //設置請求方法 connection.setRequestMethod("GET"); //判斷請求狀態碼是否連接成功 if (connection.getResponseCode() == 200) { InputStream is = connection.getInputStream(); //bitmapfactory可以有多種生存bitmap的方法 bitmap = BitmapFactory.decodeStream(is); } } catch (Exception e) { e.printStackTrace(); } return bitmap; } //獲得字節數組 public void getBytesByIs(InputStream is) throws IOException { ByteArrayOutputStream bos = new ByteArrayOutputStream(); int len ; byte[] data = new byte[1024]; while((len = is.read(data))!=-1){ bos.write(data, 0, len); } byte[] bytes = bos.toByteArray(); }