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java中getinputstream_java – 如何停止HttpURLConnection.getInputStream()？

JAVA

2023-03-02 10:29:51 时间

But if I call stopupload() while the code is handling at line is =

connection.getInputStream();,it still needs to wait for its reply.

从HoneyComb开始,所有网络操作都不允许在主线程上执行.为避免获得NetworkOnMainThreadException,您可以使用Thread或AsyncTask.

I want to stop waiting at once while implement stopupload(). How can I

do it?

以下代码让用户在2秒钟后停止上传,但您可以相应地修改睡眠时间(应少于5秒).

public void upload() \{

try \{

URL url = new URL(URLPath);

connection = (HttpURLConnection) url.openConnection();

connection.setConnectTimeout(30000);

connection.setReadTimeout(30000);

connection.setDoInput(true);

connection.setUseCaches(false);

connection.connect();

// run uploading activity within a Thread

Thread t = new Thread() \{

public void run() \{

is = connection.getInputStream();

if (is == null) \{

throw new RuntimeException("stream is null");

// sleep 2 seconds before "stop uploading" button appears

mHandler.postDelayed(new Runnable() \{

public void run() \{

mBtnStop.setVisibility(View.VISIBLE);

\},2000);

\};

t.start();

\} catch (Exception e) \{

e.printStackTrace();

\} finally \{

if (is != null) \{

try \{

is.close();

\} catch (IOException e) \{

if (connection != null) \{

connection.disconnect();

的onCreate：

@Override

public void onCreate(Bundle savedInstanceState) \{

// more codes...

Handler mHandler = new Handler();

mBtnStop = (Button) findViewById(R.id.btn\_stop);

mBtnStop.setBackgroundResource(R.drawable.stop\_upload);

mBtnStop.setOnClickListener(mHandlerStop);

mBtnStop.setVisibility(View.INVISIBLE);

View.OnClickListener mHandlerStop = new View.OnClickListener() \{

@Override

public void onClick(View v) \{

stopUpload(); // called when "stop upload" button is clicked

\};

// more codes...

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