how to read/fetch the XML file from an URL using Java?

Question

I want to read an XML file from an URL and I want to parse it. How can I do this in Java??

possible duplicate of [Best XML parser for Java](http://stackoverflow.com/questions/373833/best-xml-parser-for-java) — Joel, Jan 11 '11 at 19:37

score 3 · Answer 1 · answered Jan 11 '11 at 19:25

3

Reading from a URL is know different than any other input source. There are several different Java tools for XML parsing.

answered Jan 11 '11 at 19:25

jzd

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Thanks.can you list some of them? – Srivi Jan 11 '11 at 19:37
1

Here is a good list: http://java-source.net/open-source/xml-parsers. I have had good success with Xerces, but I really tried out many. – jzd Jan 11 '11 at 19:42

score 2 · Answer 2 · answered Jan 11 '11 at 19:25

2

You can use Xstream it supports this.

URL url = new URL("yoururl");
BufferedReader in = new BufferedReader(
                new InputStreamReader(
                url.openStream()));



xSteamObj.fromXML(in);//return parsed object

answered Jan 11 '11 at 19:25

jmj

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All XML binding/serialization libraries support this use case. Check out: http://bdoughan.blogspot.com/2010/10/how-does-jaxb-compare-to-xstream.html – bdoughan Jan 11 '11 at 20:12
@Blaise thanks , @Srivigneshwar Check link given by Blaise it is helpful. – jmj Jan 12 '11 at 07:25
What is `xSteamObj`? – m0skit0 Jun 22 '16 at 10:13

score 1 · Answer 3 · answered Jan 11 '11 at 19:27

1

Two steps:

Get the bytes from the server.
Create a suitable XML source for it, perhaps even a Transformer.

Connect the two and get e.g. a DOM for further processing.

answered Jan 11 '11 at 19:27

Thorbjørn Ravn Andersen

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Zak · Answer 4 · 2011-01-11T19:40:22.227

I use JDOM:

import org.jdom.Document;
import org.jdom.Element;
import org.jdom.input.*;

StringBuilder responseBuilder = new StringBuilder();
try {
 // Create a URLConnection object for a URL
 URL url = new URL( "http://127.0.0.1" );
 URLConnection conn = url.openConnection();
 HttpURLConnection httpConn;

 httpConn = (HttpURLConnection)conn;
 BufferedReader rd = new BufferedReader(new InputStreamReader(httpConn.getInputStream()));
 String line;

 while ((line = rd.readLine()) != null)
 {
  responseBuilder.append(line + '\n');
 }
}
catch(Exception e){
 System.out.println(e);
}

SAXBuilder sb = new SAXBuilder();
Document d = null;
try{
    d = sb.build( new StringReader( responseBuilder.toString() ) );
}catch(Exception e){
    System.out.println(e);
}

Of course, you can cut out the whole read URL to string, then put a string reader on the string, but Ive cut/pasted from two different areas. So this was easier.

ring bearer · Accepted Answer · 2016-07-05T06:17:44.227

0

This is a good candidate for using Streaming parser : StAX StAX was designed to deal with XML streams serially; than compared to DOM APIs that needs entire document model at one shot. StAX also assumes that the contents are dynamic and the nature of XML is not really known. StAX use cases comprise of processing pipeline as well.

edited Jul 05 '16 at 06:17

answered Jan 11 '11 at 19:42

ring bearer

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how to read/fetch the XML file from an URL using Java?

5 Answers5