Android java.net.SocketTimeoutException: Connection timed out

Question

Recently I have encounter the following error in my program:

11-18 12:30:30.259: W/System.err(21368): java.net.SocketTimeoutException: Connection timed out
11-18 12:30:30.259: W/System.err(21368):    at org.apache.harmony.luni.platform.OSNetworkSystem.connect(Native Method)
11-18 12:30:30.259: W/System.err(21368):    at dalvik.system.BlockGuard$WrappedNetworkSystem.connect(BlockGuard.java:357)
11-18 12:30:30.259: W/System.err(21368):    at org.apache.harmony.luni.net.PlainSocketImpl.connect(PlainSocketImpl.java:204)
11-18 12:30:30.259: W/System.err(21368):    at org.apache.harmony.luni.net.PlainSocketImpl.connect(PlainSocketImpl.java:437)
11-18 12:30:30.259: W/System.err(21368):    at java.net.Socket.connect(Socket.java:1002)
11-18 12:30:30.259: W/System.err(21368):    at org.apache.harmony.luni.internal.net.www.protocol.http.HttpConnection.<init>(HttpConnection.java:75)
11-18 12:30:30.259: W/System.err(21368):    at org.apache.harmony.luni.internal.net.www.protocol.http.HttpConnection.<init>(HttpConnection.java:48)
11-18 12:30:30.269: W/System.err(21368):    at org.apache.harmony.luni.internal.net.www.protocol.http.HttpConnection$Address.connect(HttpConnection.java:322)
11-18 12:30:30.269: W/System.err(21368):    at org.apache.harmony.luni.internal.net.www.protocol.http.HttpConnectionPool.get(HttpConnectionPool.java:89)
11-18 12:30:30.269: W/System.err(21368):    at org.apache.harmony.luni.internal.net.www.protocol.http.HttpURLConnectionImpl.getHttpConnection(HttpURLConnectionImpl.java:285)
11-18 12:30:30.269: W/System.err(21368):    at org.apache.harmony.luni.internal.net.www.protocol.http.HttpURLConnectionImpl.makeConnection(HttpURLConnectionImpl.java:267)
11-18 12:30:30.269: W/System.err(21368):    at org.apache.harmony.luni.internal.net.www.protocol.http.HttpURLConnectionImpl.connect(HttpURLConnectionImpl.java:205)
11-18 12:30:30.269: W/System.err(21368):    at org.apache.harmony.luni.internal.net.www.protocol.http.HttpURLConnectionImpl.getOutputStream(HttpURLConnectionImpl.java:614)
11-18 12:30:30.269: W/System.err(21368):    at com.example.simplevider.SimpleVideo$4.run(SimpleVideo.java:122)
11-18 12:30:30.279: W/System.err(21368):    at java.lang.Thread.run(Thread.java:1019)

The function that created this error is as follows :

    private void sendStuff() {
    Log.e("sendStuff", "======================================");
    new Thread(new Runnable() {

        @Override
        public void run() {
            final int BUFFER_SIZE = 4096;
            try {
                File uploadFile = new File(existingFileName);
                System.out.println("File to upload: " + existingFileName);
                URL url = new URL(URL);

                HttpURLConnection httpConn = (HttpURLConnection) url.openConnection();
                httpConn.setUseCaches(false);
                httpConn.setDoOutput(true);
                httpConn.setRequestMethod("POST");
                httpConn.setReadTimeout(60*1000);
                httpConn.setConnectTimeout(60 * 1000);
                // sets file name as a HTTP header
                httpConn.setRequestProperty("fileName", uploadFile.getName());
                httpConn.setRequestProperty("extra-id", uploadFile.getAbsoluteFile().toString());
                httpConn.setRequestProperty("extra-id2", uploadFile.getParent());
                httpConn.setRequestProperty("extra-id3", uploadFile.length() + "");



                OutputStream outputStream = httpConn.getOutputStream(); //<< this is the source of the error


                FileInputStream inputStream = new FileInputStream(uploadFile);

                byte[] buffer = new byte[BUFFER_SIZE];
                int bytesRead = -1;

                System.out.println("Start writing data...");

                while ((bytesRead = inputStream.read(buffer)) != -1) {
                    outputStream.write(buffer, 0, bytesRead);
                }

                System.out.println("Data was written.");
                outputStream.close();
                inputStream.close();

                // always check HTTP response code from server
                int responseCode = httpConn.getResponseCode();
                if (responseCode == HttpURLConnection.HTTP_OK) {
                    // reads server's response
                    BufferedReader reader = new BufferedReader(new InputStreamReader(httpConn.getInputStream()));
                    String response = reader.readLine();
                    System.out.println("Server's response: " + response);
                } else {
                    System.out.println("Server returned non-OK code: " + responseCode);
                }

            } catch (Exception e) {
                e.printStackTrace();
                sendStuff();
            }

        }
    }).start();

}

This function is perfectly working in normal JAVA but when copied to Android it casts java.net.SocketTimeoutException: Connection timed out and I don't know why.

Navin Kumar · Accepted Answer · 2013-11-18 11:41:59Z

2

There are two possibilities,

1)have you checked and tested your connection.

2)better don't set any connection timeout,if you are setting chose maximum time,,bcos it throws an error,if server didn't response within given time..

answered Nov 18, 2013 at 11:41

Navin Kumar

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3 Comments

user2424947 Over a year ago

My test server had some issues. I fixed them, and now this works perfectly.

Oliver Over a year ago

@user2424947: Could you explain which issues and how you fixed test server?

user5716019 Over a year ago

I have not set any connection timeout, still it throws SocketTimeOutException.

Shaffiulla Khan · Accepted Answer · 2016-03-22 06:53:45Z

0

You can use these code snippet for exception haldling:

HttpURLConnection urlConnection = (HttpURLConnection) callUrl.openConnection();
urlConnection.setReadTimeout(30000);
urlConnection.setConnectTimeout(30000);

edited Mar 22, 2016 at 6:53

Shaffiulla Khan

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answered Mar 22, 2016 at 6:31

Chitransh Mathur

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Comments

Aakib Jabbar · Accepted Answer · 2019-01-24 09:26:56Z

0

this type of exception can also occur if firewall blocks the http or https service and to unblock that goto

firewall->advanced settings -> and check the http or https options and saveenter image description here

answered Jan 24, 2019 at 9:26

Aakib Jabbar

1195 bronze badges

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