java - 从 getInput/OutputStream() 获得的输入/输出流的关闭是否会影响底层 Socket 的重新创建？

Question

我已经查看了描述HttpURLConnectionJava 中工作细节的资源，因此在 Android 中（没有使用连接池的默认实现），我的问题是：如果我关闭从 获取的流HttpURLConnection，系统会创建一个Socket下次当我建立一个相同HttpURLConnection的URL或者它会尝试使用一个现有的时？考虑以下代码：

private byte[] downloadText(URL url, String data) {
   OutputStream out = null;
   InputStream in = null;
   HttpURLConnection conn = (HttpURLConnection) url.openConnection();

   try {
      conn.setRequestMethod("POST");
      conn.setReadTimeout(20 * 1000);
      conn.setConnectTimeout(15 * 000);
      conn.setDoInput(true);
      conn.setDoOutput(true);
      conn.setRequestProperty("Content-Type", "application/json;charset=utf-8");

      byte[] payload = data.getBytes("utf-8");
      conn.setFixedLengthStreamingMode(payload.length);

      conn.connect();

      out = new BufferedOutputStream(conn.getOutputStream());
      out.write(payload);
      out.flush();

      final int responseCode = conn.getResponseCode();
      final String responseMessage = conn.getResponseMessage();

      is = conn.getInputStream();

      if((responseCode / 100) == 2 || responseMessage.equals("OK")) {
         return readFromStream(is);
      }
   } catch (IOException e) {
      Log.e(TAG, "Error occurred while trying to connect to the server" + e.toString());
   } finally {
      try {
         if(out != null) {
             out.close();
         }

         if(is != null) {
            is.close();
         }
      } catch(IOException e) {
         Log.e(TAG, "Error occurred while trying to close data streams" + e.toString());
      }
   }
}

Answer 1

你的问题没有意义。如果没有连接池，则没有“现有套接字”可重用。