parsing the XML tags values having the same name

[sathish kannan]

if i have the XML file like this,
<CoDetails>
<SupportingDocument>
<documentID>LC</documentID>
<fileType>COO3333.jpeg</fileType>
<fileSize>123</fileSize>
</SupportingDocument>
<SupportingDocument>
<documentID>RE</documentID>
<fileType>COO2222.jpeg</fileType>
<fileSize>100</fileSize>
</SupportingDocument>
<SupportingDocument>
<documentID>LP</documentID>
<fileType>COO1111.jpeg</fileType>
<fileSize>200</fileSize>
</SupportingDocument>
<SupportingDocument>
<documentID>BL</documentID>
<fileType>COO34444.jpeg</fileType>
<fileSize>300</fileSize>
</SupportingDocument>
</CoDetails>
can u please give me the java codes to retreive separately the values in each of the "supportingDocument" tag in a vector containing "documentID", "fileType" and "FileSize" values
thanks
sathish :roll:

[Balaji Loganathan]

Forgive me if i'm wrong.
Instead asking the whole java code.. why don't u try something and comeup with partly working code and then ask for help ?.. By this way u will learn more.

[Dan Drillich]

Here is a piece of code that prints the values of the three tags.
The Vector part I left for you ;-)
You need Java 1.4 to run this code.
If you find a way to achieve this using an Xpath class, please let me know.
Cheers,
Dan

 
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import org.w3c.dom.Document;
import org.w3c.dom.Attr;
import org.w3c.dom.Document;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
public class Parse5 {
    public static void main(String[] args) {
    Parse5 p = new Parse5();

    }

// ------------------
  public Parse5() {
  Document doc = null;

  DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();

  try {

    DocumentBuilder db = dbf.newDocumentBuilder();
      doc = db.parse("C:\\XML\\CoDetails.XML");
  } catch (Exception e) {
System.out.println("Parsing error...");
  }
  traverse(doc);

  }
 
// -----------------------------------

    private void traverse(Node node) {
        // is there anything to do?
        if (node == null) {
            return;
        }
        int type = node.getNodeType();
        switch (type) {
        // print document
        case Node.DOCUMENT_NODE: {
                traverse(((Document)node).getDocumentElement());
                break;
            }
        case Node.ELEMENT_NODE: {
                NodeList children = node.getChildNodes();

                if (children != null) {
                    int len = children.getLength();

                    for (int i = 0; i < len; i++) {
                          traverse(children.item(i));
    }
                } // if
           
            break;
            }
        case Node.TEXT_NODE: {

Node pn = node.getParentNode();
String pnn = pn.getNodeName();
if (pnn.equals("documentID") || pnn.equals("fileType") || 
pnn.equals("fileSize"))
                System.out.println("Inside Text: " + node.getNodeValue());
                break;
            }

        }  // switch
    } // traverse(Node)

// --------------------
}

[sathish kannan]

Thanks a lot for your effort. it works good for me after i made some alteration ....
once again thanks a lot

[Dan Drillich]

Sathish,
I have here an improved version of this code that uses the Document getElementByTagName method.
It needs some cleaning

 
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import org.w3c.dom.Document;
import org.w3c.dom.Attr;
import org.w3c.dom.Document;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
public class Parse6 {
    public static void main(String[] args) {
    Parse6 p = new Parse6();

    }

// ------------------
  public Parse6() {
  Document doc = null;

  DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();

  try {

    DocumentBuilder db = dbf.newDocumentBuilder();
      doc = db.parse("C:\\XML\\CoDetails.XML");
  } catch (Exception e) {
System.out.println("Parsing error...");
  }

  NodeList l = doc.getElementsByTagName("fileType");
  int i = 0;
  while (i < l.getLength() ) {
Node n = l.item(i);
NodeList l2 = n.getChildNodes();
int j = 0;
while (j < l2.getLength() ) {
Node n2 = l2.item(j);
System.out.println("Inside Text: " + n2.getNodeValue());
j++;
}
i++;
  }
  
  }
 
}
 

Cheers,
Dan