How to read my xml file

[lshankar_mca]

Hi I have to read a xml file using with the java.

<?xml version="1.0" encoding="ISO-8859-1" ?>
<form TOKEN="GL40.1" TITLE="Journal Entry" FORMTYPE="form" =OTKNXFER="0" TYPE="ONLINE" SYSTEM="GL" RUNTYPE="lapm" =iddenFC="0" defaultFC="I" line="LW" keycheck="CXR" =atareq="AC" next="NP" add="A" lreq="ACX" chg="C" lchg="C" =datareq="AC" inq="I" ladd="A" pairs="AACACCCDIXX1X2X3X4X5X6" =MLGenBy="xscrgen 9.0.0.5.215 2008-04-24 04:00:00 (200805)" =MLGenDT="20100624 0852">
<fld tp="Hidden" nbr="_f2" sz="5" nm="TRANSFER-FROM" al="left" =d="upper" keynbr="TRE" nknimp="1"/>
<fld tp="Hidden" nbr="_f3" sz="1" nm="PT-XMIT-NBR" al="left" =d="numeric"/>
<fld tp="Hidden" nbr="_f4" sz="6" nm="PT-LINE-AFT-INS" =l="left" ed="numeric"/>
<fld tp="Hidden" nbr="_f5" sz="1" nm="PT-INSERT" al="left" =d="upper"/>
<fld tp="Hidden" nbr="_f6" sz="1" nm="PT-MIMIC-ENTRY" =l="left" ed="upper" keynbr="GFI"/>
<fld tp="Hidden" nbr="_f7" sz="17" mxsz="20" decsz="2" =m="GLC-ENTRY-DB" al="left" ed="signed" keynbr="GkI" =knimp="1"/>
<fld tp="Hidden" nbr="_f8" sz="17" mxsz="20" decsz="2" =m="GLC-ENTRY-CR" al="left" ed="signed" keynbr="GkH" =knimp="1"/>
<fld tp="Hidden" nbr="_f9" sz="17" mxsz="20" decsz="2" =m="SV-ENTRY-DIFF" al="left" ed="signed" keynbr="GkC"/>
</form>
</xml>

I want to get the values of nm and nbr attributes.

Please help me in reading the xml file

[Fubarable]

What has Google told you, and what have you tried? Have you tried XPath? If not, I'd start with that if all you want to do is extract out specific information and are not interested in creating an XML file.

[oomrichie]

I think this simple example will help you

<?xml version="1.0" encoding="windows-1252" ?>
<LoginInfo>
	<Users>
            <username>John</username>
            <password>password</password>
            <autologin>false</autologin>
            <dbfileloc>null</dbfileloc>
	</Users>	
</LoginInfo>

try {   
            DocumentBuilderFactory dbFactory =
                DocumentBuilderFactory.newInstance();
            DocumentBuilder dBuilder = dbFactory.newDocumentBuilder();
            Document doc = dBuilder.parse(xmlfile);
            doc.getDocumentElement().normalize();
            NodeList nList = doc.getElementsByTagName("Users");
            for (int i = 0; i < nList.getLength(); i++) {
                Node nNode = nList.item(i);
                if (nNode.getNodeType() == Node.ELEMENT_NODE) {
                    
                    Element eElement = (Element)nNode;                    
                    username = getTagValue("username", eElement);
                    password = getTagValue("password", eElement);
                    autologin = Boolean.parseBoolean(getTagValue("autologin", eElement));
                    dbfileloc = getTagValue("dbfileloc", eElement);
                }
            } 
        } catch (NullPointerException e) {
            e.toString();
        }catch(Exception e){
            e.printStackTrace();
        }

//return the value of the subnode in a sting
    private static String getTagValue(String sTag, Element eElement){
        NodeList nlList = eElement.getElementsByTagName(sTag).item(0).getChildNodes();
        Node nValue = nlList.item(0);
        return nValue.getNodeValue();
    }

[Fubarable]

I think this simple example will help you

.....

                    //....

                    username = getTagValue("username", eElement);

                    //....

Pardon my ignorance, but what API is the getTagValue method from?

[oomrichie]

Sorry I Forgot to include the method. my Bad :D

//return the value of the subnode in a sting
    private static String getTagValue(String sTag, Element eElement){
        NodeList nlList = eElement.getElementsByTagName(sTag).item(0).getChildNodes();
        Node nValue = nlList.item(0);
        return nValue.getNodeValue();
    }

[danday]

take a look at xpath, it's ideal for what you want