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Java Forum / General / September 2007How to read and parse a remote XML file with Java
Hi. Using J2SE v1.4.2, I'd like to read and parse a remote file: http://foo.com/file.xml Is it possible with Java? I'd be extremely grateful if someone could provide me any webpage showing a very simple code. Thank you very much. ... >Using J2SE v1.4.2, I'd like to read and parse a remote file: >http://foo.com/file.xml It is possible using Java 1.1, but 1.4 makes it easier in that 1.4 introduced API's specifically for parsing XML (see the javax.xml hierarchy packages for more details). >Is it possible with Java? Yes. >...I'd be extremely grateful if someone could >provide me any webpage showing a very simple code. And what if someone had a link to a web page that had simple, but not *very* simple, code to do that? Should they simply not reply? <dws>Would you like us to code it for you?</dws>  SignatureAndrew Thompson http://www.athompson.info/andrew/ > And what if someone had a link to a web page that > had simple, but not *very* simple, code to do that? > Should they simply not reply? > > <dws>Would you like us to code it for you?</dws> I'm not a Java programmer, and I only need a "hello world" sample in order to make a comparative table between Perl, PHP, Python and Java with Web Services. Thank you very much. >> And what if someone had a link to a web page that had simple, but >> not *very* simple, code to do that? Should they simply not reply? [quoted text clipped - 4 lines] > order to make a comparative table between Perl, PHP, Python and Java > with Web Services. Why Java 1.4.2[1] and not a current Java? Are you comparing it with Perl 4 and PHP 3? What type of XML parser are you using in Python, PHP and Perl? SAX? DOM? other? It would be silly to compare a Perl SAX parser with a Java DOM parser or vice versa. [1] From original posting. > Why Java 1.4.2[1] [2] > and not a current Java? > Are you comparing it with Perl 4 and PHP 3? [quoted text clipped - 4 lines] > > [1] From original posting. [2] which is in its "End-of-Life" process. <http://java.sun.com/j2se/1.4.2/> > J2SE 1.4.2 has begun the Sun End of Life (EOL) process. > The EOL transition period is from Dec, 11 2006, > until the General Availability (GA) of the next Java version, > Java SE 7, currently planned for the summer of 2008. > With this notice, customers are strongly encouraged to migrate > to the current release, Java SE 6. SignatureLew >> And what if someone had a link to a web page that >> had simple, but not *very* simple, code to do that? [quoted text clipped - 5 lines] > order to make a comparative table between Perl, PHP, Python and Java > with Web Services. Try starting here; this will tell you how to go from a URL to an open file for reading: http://java.sun.com/docs/books/tutorial/networking/urls/index.html I'm not having a lot of luck finding "simple" programming examples of XML parsers. Here's one that at least includes a lot of examples: http://www.totheriver.com/learn/xml/xmltutorial.html Try doing some Google searches for "java xml parser tutorial" you might find some that are better for you. Good luck. > I'm not a Java programmer, and I only need a "hello world" sample DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance(); DocumentBuilder db = dbf.newDocumentBuilder(); Document doc = db.parse((new URL(url)).openStream()); > in > order to make a comparative table between Perl, PHP, Python and Java > with Web Services. You don't do web services in Java like that, so I am very skeptical about the outcome of your "comparison". Arne On Fri, 31 Aug 2007 11:46:23 -0000, Thomas Armstrong <tarmstrong@gmail.com> wrote, quoted or indirectly quoted someone who said : >Using J2SE v1.4.2, I'd like to read and parse a remote file: >http://foo.com/file.xml [quoted text clipped - 3 lines] > >Thank you very much. Split the problem in two. 1. Get the file. 2.Parse it. To get the file, have a look at the code at http://mindprod.com/products1.html#SUBMITTER It fetches an XML PAD file. The http://mindprod.com/products.html#HTTP and http://mindprod.com/products.html#FILETRANSFER classes will be useful. Then to parse it, see code at http://mindprod.com/jgloss/xml.html SignatureRoedy Green Canadian Mind Products The Java Glossary http://mindprod.com Free MagazinesGet these publications absolutely FREE for up to 12 months. There are no hidden fees and no obligation. Simply choose a title, complete the application form and submit it. Read more ...
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