text:
Q: Reading from the same URL multiple times,not getting the data 2nd time I have the following code.A connection,then getting an input stream from that connection and reading from the input stream.Now I want to reuse the same connection to get input stream one more time,but second time I am not getting any data.
Why is that so?I am not using the same stream but the same connection.Do we need to open the connection again 2nd time?Please explain.
URL url=new URL("https://www.google.co.in/");
HttpURLConnection httpURLConnection=(HttpURLConnection)
url.openConnection();
httpURLConnection.setRequestMethod("GET");
httpURLConnection.connect();

InputStream inputStream=httpURLConnection.getInputStream();
BufferedReader in = new BufferedReader(new InputStreamReader(inputStream));
String inputLine;
while ((inputLine = in.readLine()) != null)
System.out.println(inputLine);

System.out.println("**********************************");

/*Reading 2nd time*/
InputStream is=httpURLConnection.getInputStream();
BufferedReader bf = new BufferedReader(new InputStreamReader(is));
String inputLines=null;
while ((inputLine = bf.readLine()) != null)
System.out.println(inputLines);
bf.close();

A: Calling getInputStream() a second time won't give you a new stream, it will just give you the one that you've already read - and that stream has nothing left to read.
If you really want to read the content twice, I suggest you copy it to a String (or to a byte[] if its content is not text) the first time you read it.  You can then read it twice from the String or from the byte[].
Another alternative, if the content is particularly large, would be to copy it off to a temporary file.

A: You are not getting data because there is nothing in the stream. To get it, you have to send another "GET" request

A:
Each HttpURLConnection instance is used to make a single request

Please refer the javadoc
http://download.java.net/jdk7/archive/b123/docs/api/java/net/HttpURLConnection.html

A: Why you want to read it multiple times? Just keep the values in a variable.
List<String> inputLines =new ArrayList<String>();
String inputLine;
while ((inputLine = in.readLine()) != null)
inputLines.add(inputLine);


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Language, Education and Technology
Steven Thorne
Springer-Verlag GmbH
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Encyclopedia of Language and Education
This volume on technology in language education is a new addition to Springer's landmark reference work, now released in a fully updated and revised third edition that includes material from academics with non-English-speaking and non-Western perspectives.
Title is also available as part of a set: Language, Education and Technology (978-3-319-02238-3)
Perspectives on technology, multimodality, literacy and language.- Plurilingual practices in digital contexts.- Technology in world/second language eduction contexts.- Gaming, virtual worlds, and social network sites for language learning.- Methods and methodologies in technology and language edúcation.
In this third, fully revised edition, the 10 volume Encyclopedia of Language and Education offers the newest developments, including an entirely new volume of research and scholarly content, essential to the field of language teaching and learning in the age of globalization. In the selection of topics and contributors, the Encyclopedia reflects the depth of disciplinary knowledge, breadth of interdisciplinary perspective, and diversity of socio-geographic experience in the language and education field. Throughout, there is an inclusion of contributions from non-English speaking and non-western parts of the world, providing truly global coverage. Furthermore, the authors have sought to integrate these voices fully into the whole, rather than as special cases or international perspectives in separate sections. The Encyclopedia is a necessary reference set for every university and college library in the world that serves a faculty or school of education, as well as being highly relevant to the fields of applied and socio-linguistics. The publication of this work charts the further deepening and broadening of the field of language and education since the publication of the first edition of the Encyclopedia in 1997 and the second edition in 2008.
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