httpurlconnection | Tech Tips & Tricks

Read An HttpURLConnection’s InputStream Line By Line

Posted by blogmeister on

July 22, 2009

To read an HttpURLConnection’s InputStream line by line, just like what you do reading a file using a FileReader, you can use the InputStreamReader class as parameter to the BufferedReader class and do the same code you do for reading a file line by line. Take this code for example.

URL url = new URL("SITE");
HttpURLConnection httpcon = (HttpURLConnection) url.openConnection();
BufferedReader br = new BufferedReader(new InputStreamReader(httpcon.getInputStream()));
String line = null;
while ((line = br.readLine()) != null) {
  System.out.println(line);
}
httpcon.disconnect();
br.close();

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URL url = new URL("SITE");

HttpURLConnection httpcon = (HttpURLConnection) url.openConnection();

BufferedReader br = new BufferedReader(new InputStreamReader(httpcon.getInputStream()));

String line = null;

while ((line = br.readLine()) != null) {

System.out.println(line);

}

httpcon.disconnect();

br.close();

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tags: httpurlconnection, inputstream, stream

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Display Header Fields Of HttpURLConnection In Java

Posted by blogmeister on

April 30, 2009

Here is a short code to list header fields returned after you access a url.

public void display(HttpURLConnection httpcon) {
  Map headerfields = httpcon.getHeaderFields();
  Set headers = headerfields.entrySet(); 
  for(Iterator i = headers.iterator(); i.hasNext();){ 
    Map.Entry map = (Map.Entry)i.next();
    System.out.println(map.getKey() + " : " + map.getValue()); 
  }
}

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public void display(HttpURLConnection httpcon) {

Map headerfields = httpcon.getHeaderFields();

Set headers = headerfields.entrySet();