Solved

Problem with my XML-reader only working locally

Posted on 2004-10-17
7
275 Views
Last Modified: 2010-03-31
Hey

I am trying to get all my vital databaseinformation from an xml-file which has the following info:

<?xml version="1.0"?>
      <jollytickerdatabaseinfo>
             <driver>com.mysql.jdbc.Driver</driver>
             <dburl>jdbc:mysql://XXX.XXX.XXX.XX/jollyticker</dburl>
            <user>masked</user>
             <password>masked</password>
      </jollytickerdatabaseinfo>

And trying to read it with:

public class ReadXML  {
void ReadXMLContent(){
 try {
      DocumentBuilderFactory docBuilderFactory = DocumentBuilderFactory.newInstance(); //obtain a parser that produces DOM object trees from XML document
      DocumentBuilder docBuilder = docBuilderFactory.newDocumentBuilder(); // Defines the API to obtain DOM Document instances from an XML document
      Document doc = docBuilder.parse (new File("jolly_db.xml")); //Get the file to read

      NodeList dbUrl = doc.getElementsByTagName("dburl");  // Get node list defined by tagname, this is an list conatining all elements named dburl
      NodeList dbdriver = doc.getElementsByTagName("driver");
      NodeList dbuser = doc.getElementsByTagName("user");
      NodeList dbpassword = doc.getElementsByTagName("password");
      Element url = (Element) dbUrl.item(0); // Get the first element in the node list (we only have one element in this file)
      Element driver = (Element) dbdriver.item(0);
      Element user = (Element) dbuser.item(0);
      Element password = (Element) dbpassword.item(0);
      NodeList urlList = url.getChildNodes();  //Get child nodes
      NodeList driverList = driver.getChildNodes();
      NodeList userList = user.getChildNodes();
      NodeList passwordList = password.getChildNodes();
      strDriver = ((Node) driverList.item(0)).getNodeValue().trim();//Get the first item int the childnode (this is where our information is)
      strUrl = ((Node) urlList.item(0)).getNodeValue().trim();
      strUser =  ((Node) userList.item(0)).getNodeValue().trim();
      strPassword = ((Node) passwordList.item(0)).getNodeValue().trim();
   }
   catch (SAXParseException err) {
     System.out.println("Parsing error" + ", line " + err.getLineNumber() +", uri " + err.getSystemId());
     System.out.println(" " + err.getMessage());
   }
   catch (SAXException e) {
     Exception x = e.getException();
     ( (x == null) ? e : x).printStackTrace();
   }
   catch (Throwable t) {
     t.printStackTrace();
   }
 }
}

The problem is that when I run my applet from a website it tries to look for the xml-file on my local drive. It's looking for it on my desktop. Why? And how can I  fix this so that it looks for it on the website. All docs are in the same dir, .html, .jar, .xml

Any help would be appreciated.
0
Comment
Question by:mindweaver
  • 5
7 Comments
 
LVL 14

Accepted Solution

by:
sudhakar_koundinya earned 500 total points
ID: 12333335
>>      Document doc = docBuilder.parse (new File("jolly_db.xml")); //Get the file to read


That's true. It reads local file only. The reason is u r  initialising the local file object using new File()
0
 
LVL 14

Expert Comment

by:sudhakar_koundinya
ID: 12333346
rather use this one

Document       parse(String uri) ;

something like

Document doc = docBuilder.parse ("http://yoursite/yourrepository/jolly_db.xml")); //Get the file to read
0
 

Author Comment

by:mindweaver
ID: 12333350
yeah just noticed that. what shall I use instead?

like

Document doc = docBuilder.parse (jolly_db.xml);

?
0
Free Tool: ZipGrep

ZipGrep is a utility that can list and search zip (.war, .ear, .jar, etc) archives for text patterns, without the need to extract the archive's contents.

One of a set of tools we're offering as a way to say thank you for being a part of the community.

 
LVL 14

Expert Comment

by:sudhakar_koundinya
ID: 12333354
0
 
LVL 21

Expert Comment

by:MogalManic
ID: 12333359
The line
      Document doc = docBuilder.parse (new File("jolly_db.xml")); //Get the file to read
loads the file from the default directory where the application starts.  The website directory needs to be passed in to your function.  It either can be a constant or can be retrieved throw the ServletContext.  In your servlet, issue the following code:
        ServletContext  context=this.getServletContext();
        String realPath=context.getRealPath("jolly_db.xml");  //Assuming xml is located on the root of the website
        ReadXML read=new ReadXML();
        read.readXMLContent(realPath);

0
 
LVL 14

Expert Comment

by:sudhakar_koundinya
ID: 12333382
>>The problem is that when I run my applet from a website it tries to look for the xml-file on my local drive

According to this statement we  need to go for parse(String url) method

 

Regards
Sudhakar
0
 
LVL 14

Expert Comment

by:sudhakar_koundinya
ID: 12336584
thanks for accepting.

But only 'B'??
0

Featured Post

Free Tool: Path Explorer

An intuitive utility to help find the CSS path to UI elements on a webpage. These paths are used frequently in a variety of front-end development and QA automation tasks.

One of a set of tools we're offering as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
servlet  URL Rewriting 1 42
oracle 11g 23 107
Windows 10 IE Certificate Issue 10 51
Using jdbcTemplate.batchUpdate to improve INSERT performance 6 22
Are you developing a Java application and want to create Excel Spreadsheets? You have come to the right place, this article will describe how you can create Excel Spreadsheets from a Java Application. For the purposes of this article, I will be u…
Go is an acronym of golang, is a programming language developed Google in 2007. Go is a new language that is mostly in the C family, with significant input from Pascal/Modula/Oberon family. Hence Go arisen as low-level language with fast compilation…
Viewers learn about the third conditional statement “else if” and use it in an example program. Then additional information about conditional statements is provided, covering the topic thoroughly. Viewers learn about the third conditional statement …
Viewers will learn about arithmetic and Boolean expressions in Java and the logical operators used to create Boolean expressions. We will cover the symbols used for arithmetic expressions and define each logical operator and how to use them in Boole…

861 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question