Approach on parsing an XML file (JAXP, JAXB, DOM, SAX, XSLT)
I have a pretty basic xml file that contains a database table name, fields, and sort order. My job is to read the XML file, construct the query based on the information in the nodes, and then output it in various ways. I know I can use JAXP, JAXB, DOM, SAX, and XSLT for this.
I have the experience doing this using DOM. I have read up on JAXP, JAXB, and XSLT. I'm having a little bit of a difficult time on chosing the most appropriate way to do this. Again, I've always done it using DOM, but I'm not so sure that is the best way to do it here. Just looking for some recommendations from people whom are more familiar with XML parsing and processing.
markwagoner wrote:
I tried several of those but found them rather tedious. Now I just use JDOM for everything, it make life much easier.It doesn't, actually. It kept your learning curve shallow, but that's all. If you were to invest some time in JAXB, you'd find it made life easier for some things. If you invested time in XSLT, it would make life easier. Endlessly working with JDOM is incredibly tiresome after a while. You just don't know it because you never invested enough in learning anything else.
Don't bother posting any code to "enlighten" me as to how simple JDOM is. I've been using it for years.
Similar Messages
-
Parsing an xml file using xerces DOM parser
Hi
I want to parse a simple xml file using DOM parser.
The file is
<Item>
<SubItem>
<title>SubItem0</title>
<attr1>0</attr1>
<attr2>0</attr2>
<attr3>0</attr3>
</SubItem>
<SubItem>
<title>SubItem1</title>
<attr1>1</attr1>
<attr2>0</attr2>
<attr3>0</attr3>
</SubItem>
<SubItem>
<title>SubItem2</title>
<attr1>1</attr1>
<attr2>1</attr2>
<attr3>0</attr3>
<SubItem>
<title>SubItem20</title>
<attr1>2</attr1>
<attr2>1</attr2>
<attr3>0</attr3>
</SubItem>
<SubItem>
<title>SubItem21</title>
<attr1>1</attr1>
<attr2>1</attr2>
<attr3>0</attr3>
</SubItem>
</SubItem>
</Item>
I just want to parse this file and want to store the values in desired datastructures,
I am trying using DOM parser, since it gives a tree structure, which is ok in this case.
public void init()
InputReader ir =new InputReader("Habsys");
Document doc =ir.read("Habitat");
System.out.println(doc);
traverse(doc);
private void traverse(Document idoc)
NodeList lchildren=idoc.getElementsByTagName("SubItem");
for(int i=0;i<lchildren.getLength();i++)
String lgstr=lchildren.item(i).getNodeName();
if(lgstr.equals("SubItem"))
traverse(lchildren.item(i));
private void traverse (Node node) {
int type = node.getNodeType();
if (type == Node.ELEMENT_NODE)
System.out.println ("Name :"+node.getNodeName());
if(!node.hasChildNodes())
System.out.println ("Value :"+node.getNodeValue());
NodeList children = node.getChildNodes();
if (children != null) {
for (int i=0; i< children.getLength(); i++)
traverse (children.item(i));
But I am not getting required results, a lot of values I am getting as null
Could anybody tell me how to retrieve the data from the xml file, I simply want to read data and store it in data structures. For eg, for tag Subitem with title as ' SubItem1' has attr1 as '1', attr2 as'0' and attr3 as '0'.
Thanks
GauravCheck This Sample Code....
public void amethod(){
DocumentBuilderFactory dbf = null;
DocumentBuilder docBuilder = null;
Document doc = null;
try{
dbf = DocumentBuilderFactory.newInstance();
db = dbf.newDocumentBuilder();
doc = db.parse(New File("path/to/your/file"));
Node root = doc.getDocumentElement();
System.out.println("Root Node = " + root.getNodeName());
readNode(root);
}catch(FactoryConfigurationError fce){ fce.printStackTrace();
}catch(ParserConfigurationException pce){ pce.printStackTrace();
}catch(IOException ioe){ ioe.printStackTrace();
}catch(SAXException saxe){ saxe.printStackTrace();
private void readNode(Node node) {
System.out.println("Current Node = " + node.getNodeName());
readAttributes(node);
readChildren(node);
private void readAttributes(Node node) {
if (!node.hasAttributes())
return;
System.out.println("Attributes:");
NamedNodeMap attrNodes = node.getAttributes();
for (int i=0; i<attrNodes.getLength(); i++) {
Attr attr = (Attr)attrNodes.item(i);
System.out.println(attr.getNodeName() + " => " + attr.getNodeValue());
private void readChildren(Node node) {
if (!node.hasChildNodes())
return;
System.out.println("Value/s:");
NodeList childNodes = node.getChildNodes();
for (int i=0; i<childNodes.getLength(); i++) {
Node child = (Node)childNodes.item(i);
if (child.getNodeType() == Node.ELEMENT_NODE) {
readNode(child);
continue;
if (child.getNodeType() == Node.TEXT_NODE) {
if (child.getNodeValue()!=null)
System.out.println(child.getNodeValue()); -
I need to parse large xml file which contains following tag. The size of the file is upto 10MB-50MB or more.
<departments>
<department>
<a_depart id="124">
<b_depart id="Bss_253">
<bss_depart id="253">
<attributes>
<name_one>abc</name_one>
</attributes>
</bss_depart id="253">
</b_depart id="Bss_253">
</a_depart id="124">
</department>
<department>
<a_depart id="124">
<b_depart id="Bss_254">
<mss_depart id="253">
<attributes>
<name_one>abc</name_one>
<name_two>xyz</name_one>
</attributes>
</mss_depart>
</b_depart>
</a_depart>
</department>
<department>
<a_depart id="124">
<b_depart id="Bss_254">
<mss_depart id="255">
<attributes>
<name_one>abc</name_one>
<name_two>xyz</name_one>
</attributes>
</mss_depart>
</b_depart>
</a_depart>
</department>
<department>
<a_depart id="125">
<b_depart id="Bss_254">
<mss_depart id="253">
<attributes>
<name_one>abc</name_one>
<name_two>xyz</name_one>
</attributes>
</mss_depart>
</b_depart>
</a_depart>
</department>
I want to get the infomation for that xml file. like mss_depart id=233, building xpath dyanmically for every id and loading
that using dom4j. which is very very slow.
Is there any other solution for that to read the data using sax parser only.
I want to execute the xpath or data for the following way.
//a_depart/@id ------> all the ids of a_depart tags if it returns 3 values say 123,124,125
after that i want to execute
//a_depart[@id='123']/b_depart/@id like this ...to retrive the values of all the levels ...
I am executing following xpath for every unique ids at all levels.
List l = doc.selectNodes(xPathForID);
List l1 = doc.selectNodes(xPathForAttributes+attributes.get(j)+"/text()");
But it is very slow and taking lot of time.
Is there any other way to solve this problem. If any please mail me it is urgent.
I am using jdk1.4 and jdk1.5
Is there any support for sax parser to execute xpath in jdk1.5 direclty, with out using dom4j
Thanks in advance....I doubt you will find a preexisting solution to your problem.
SAX is usually recommended for processing big files (where "big" is undefined"). It works on big files by avoiding the messy problem of storing the data -- that is left as an exercise to you.
DOM (and its variants) works by building a Document object as the head of the tree of objects for the entire contents. With DOM, you can then use XPath, because there is something to search that is already in memory. To use XPath, you seem to have two choices, build a DOM-ish tree, or if you can find an XPath processor (I'm not sure if one exists) that can process the XML file directly, but it will be slow, since you are looking for "all" occurences of an attribute, and this means you have to read the entire file each time.
It might be worth exploring a hybrid approach -- use SAX to get some information, and build your own objects to store the data. Maybe a HashMap as the main index. But, that will keep you from using XPath, since you do not have the data structures it expects.
A third alternative would be to look at JAXB. It builds Java code from a Schema of your data and then when you import the data, it creates the necessary objects and fills in values. But, I don't think XPath woll work there either.
Dave Patterson -
I am a new learner to XML & JAVA,I dont't know how to parse the XML file using JAXP,Who can tell me,Who can write an Example?
thx
Best Regards.Using the SAXParser in JAXP the parsing of the XML file is event driven.
Instantiate the parser:
SAXParserFactory factory = SAXParserFactory.newInstance();
SAXParser parser = factory.newSAXParser();
InputSource is = new InputSource(new FileReader(theXML));call the parse method:
parser.parse(is, this);The following events are fired as the parser works through the XML public void startElement(String namespaceURI, String localName, String qName, Attributes atts) throws org.xml.sax.SAXException
public void endElement(String namespaceURI, String localName, String qName) throws org.xml.sax.SAXException
characters(char[] ch, int start, int length)etc.
You write what you want within each of these sections to handle the structure of your data. Keep in mind SAX is useful only when you know the structure of your XML. -
Unmarshalling a DOM node to an XML file with JAXB
I'm trying to unmarshall a DOM node to an XML file using JAXB. However I keep receiving a NullPointerException. This only seems to occur when I create the DOM Node from scratch. The stack trace looks like the following:
java.lang.NullPointerException
at com.sun.xml.bind.unmarshaller.SAXUnmarshallerHandlerImpl.startElement
(SAXUnmarshallerHandlerImpl.java:87)
at com.sun.xml.bind.unmarshaller.DOMScanner.visit(DOMScanner.java:109)
at com.sun.xml.bind.unmarshaller.DOMScanner.parse(DOMScanner.java:64)
at com.sun.xml.bind.unmarshaller.UnmarshallerImpl.unmarshal(Unmarshaller
Impl.java:149)
at Main.main(Main.java:103)(If I unmarshal an XML file into a DOM node, I can successfully marshall the DOM node out to a new XML file using JAXB without error.)
Any insight into what I am doing wrong would be greatly appreciated!
Sample code and XSD follow...
Sample Code:
import itemlistsample.*;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.Iterator;
import java.util.List;
import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBException;
import javax.xml.bind.Marshaller;
import javax.xml.bind.Unmarshaller;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.DocumentBuilder;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NodeList;
import org.w3c.dom.Node;
import org.w3c.dom.Text;
public class Main
public static void main(String[] args)
try
JAXBContext jc = JAXBContext.newInstance( "itemlistsample" );
Unmarshaller u = jc.createUnmarshaller();
* Set up DOM Node Document Object.
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
dbf.setNamespaceAware(true);
DocumentBuilder db = dbf.newDocumentBuilder();
Document doc = db.newDocument();
System.out.println();
System.out.println();
System.out.println("Create a DOM Node and unmarshall to an XML file");
* Generate elements within DOM document
Element itemListElt = (Element)doc.createElement("item_list");
Element itemInfo = (Element)doc.createElement("item_info");
Element name = (Element)doc.createElement("name");
Element price = (Element)doc.createElement("price");
* 3-Ring Binder @ 4.99
name.appendChild(doc.createTextNode("3-Ring Binder"));
itemInfo.appendChild(name);
price.appendChild(doc.createTextNode("4.99"));
itemInfo.appendChild(price);
itemListElt.appendChild(itemInfo);
* Large Paper Clips @ 1.23
itemInfo = (Element)doc.createElement("item_info");
name = (Element)doc.createElement("name");
price = (Element)doc.createElement("price");
name.appendChild(doc.createTextNode("Large Paper Clips"));
itemInfo.appendChild(name);
price.appendChild(doc.createTextNode("1.23"));
itemInfo.appendChild(price);
itemListElt.appendChild(itemInfo);
doc.appendChild(itemListElt);
* Display DOM document as a sanity check
itemListElt = doc.getDocumentElement();
System.out.println(itemListElt.getTagName());
NodeList nl = itemListElt.getElementsByTagName("item_info");
traverse(" ", nl.item(0));
* Use JAXB to unmarshal the DOM document into
* an instance of the generated JAXB class for
* the root element. Stack trace occurs here!
ItemListType il = (ItemListType)u.unmarshal(doc);
* Marshal to an XML file
Marshaller m = jc.createMarshaller();
m.setProperty( Marshaller.JAXB_FORMATTED_OUTPUT, Boolean.TRUE );
m.marshal( il, new FileOutputStream("item_new.xml") );
catch (Exception e)
e.printStackTrace();
public static void traverse(String indent, Node n)
if (n != null)
if (n.getNodeName() != null)
System.out.println(indent + n.getNodeName());
traverse(indent + " ", n.getFirstChild());
if (n.getNodeValue() != null)
System.out.println(indent + n.getNodeValue());
traverse(indent, n.getNextSibling());
}Sample XSD:
<?xml version="1.0" encoding="ISO-8859-1"?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<xsd:element name="item_list" type="ItemListType"/>
<xsd:complexType name="ItemListType">
<xsd:sequence>
<xsd:element name="item_info" type="ItemInfoType" maxOccurs="unbounded"/>
</xsd:sequence>
</xsd:complexType>
<xsd:complexType name="ItemInfoType">
<xsd:sequence>
<xsd:element name="name" type="xsd:string"/>
<xsd:element name="price" type="xsd:double"/>
</xsd:sequence>
</xsd:complexType>
</xsd:schema>Modified schema
<?xml version="1.0" encoding="ISO-8859-1"?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<xsd:element name="item_list">
<xsd:complexType>
<xsd:sequence>
<xsd:element ref="item_info" maxOccurs="unbounded"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<xsd:element name="item_info">
<xsd:complexType>
<xsd:sequence>
<xsd:element name="name" type="xsd:string"/>
<xsd:element name="price" type="xsd:double"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
</xsd:schema> -
How to read the attribute of the xml file using jaxb
Thanks,
Buddy as i have a issue i have to read the xml file using jaxb and xml file contains this data and i have read the attribute like name , desc and action for a particular menu name pls tell the code how to do this it will be a great favour to me
thanx in advance
Rasool
<contextmenu>
<menu name='Lead' >
<menuitem name='newlead' desc='New Lead' action='/leads.do?dispatch=insert' />
<menuitem name='editlead' desc='Edit Lead' action='' />
<menuitem name='leadinfo' desc='Lead Information' action='' />
</menu>
<menu name='Cases' >
<menuitem name='' desc='' action='' />
<menuitem name='' desc='' action='' />
<menuitem name='' desc='' action='' />
</menu>
<menu name='Contact' >
<menuitem name='' desc='' action='' />
<menuitem name='' desc='' action='' />
<menuitem name='' desc='' action='' />
</menu>
</contextmenu>What my program do is to get the encoding of XML files and convert them to UTF-8 encoding files, while I need this "encoding" information of the original XML document thus I can convert...
After reading specifications and JDOM docs, the truth turns to be disappointed, no function is provided to get this information in JDOM level 2(the current released one), while it's promissed that this function will be provided in JDOM level API....
Thanx all for your help and attention!!! -
Can someone help me with a problem of parsing an XML file?
Hello,
I'm having some problems parsing an xml file. I get a SAXNotSupportedException when setting a property value.
Here is the piece of code where I have the problem:
SAXParserFactory spf = SAXParserFactory.newInstance();
spf.setNamespaceAware(true);
SAXParser saxParser = spf.newSAXParser();
XMLReader xmlReader = saxParser.getXMLReader();
DefaultHandler defHandler = new DefaultHandler();
xmlReader.setProperty("http://xml.org/sax/properties/lexical-handler", defHandler);
and the log is:
Problem with the parser org.xml.sax.SAXNotSupportedException: PAR012 For propertyID "http://xml.org/sax/properties/lexical-handler", the value "org.xml.sax.helpers.DefaultHandler@4ff4f74a" cannot be cast to LexicalHandler.
http://xml.org/sax/properties/lexical-handler org.xml.sax.helpers.DefaultHandler@4ff4f74a LexicalHandler
I've been working on this problem but I can't find the error.
Does anyone have an idea of what to do to solve it?
Thanx in advance,
M@Gbefore deciding which XML technology to use, you should see if your application fit in the category below:
use SAX:
1. The XML file is rather large (30 or 40+ MB)
2. I don't need the xml document in memory. I will parse the document and store the data in my own object.
use DOM or JDOM
1. The XML file is relatively small (less than 30 MB) or I can increase the runtime memory for larger xml file.
2. I will need to walk up and down the xml document tree severals time.
3. My application is in Java and it's not going to be rewritten in C++, etc (use JDOM)
NOTE:
JDOM is rather easier to use (for Java developer), but it's not an www.org.com standardlized xml parser.
personally, i like JDOM for traversing the DOM. -
Parsing of xml file in oracle stored procedure on linux server
We have an XML file in the "/database/stats/dev/xml1/" path and tried to parse the file using the below code :
p := xmlparser.newParser;
xmlparser.setValidationMode(p, FALSE);
-- xmlparser.setErrorLog(p, errfile);
xmlparser.setBaseDir(p, dir);
xmlparser.parse(p, inpfile);
doc := xmlparser.getDocument(p);
xmlparser.freeParser(p);
The above procedure is throwing below mentioned exception at "xmlparser.parse(p, inpfile);".
SQLCODE: ORA-31001
SQLERRM: ORA-31001: Invalid resource handle or path name "/xml1.dtd"
The xml file contains the following line, which is giving an error, while parsing the xml file.
<!DOCTYPE CCIOrder SYSTEM "xml1.dtd">
Directory Structure:
OWNER DIRECTORY_NAME DIRECTORY_PATH
SYS XML1 /database/stats/dev/xml1you'll need to use server-side code to check the xml file names in that folder, return that list to flash and display the list to the user.
or, if you can get by presenting a hard-coded list of xml files, you won't need any server-side coding. -
How to Parse an XML file using SAXParser in java.
Hi all
Am a bit new to XML files and have no idea about SAXParsers ... Now my problem is to parse this XML file below
<?xml version="1.0" encoding="UTF-8"?>
<sc:memory_segmentation xmlns:sc="sc_memory_segmentation.xsd">
<sc:architecture name="MPC55xx"></sc:architecture>
<sc:derivative name=""></sc:derivative>
<sc:configuration name=""></sc:configuration>
<sc:memory name="Internal ROM" type="ROM">
<sc:area-list>
<sc:area name="Bootmanager" type="BOOTMANAGER">
<sc:segment-list>
<sc:segment name="ROM page 1">
<sc:start></sc:start>
<sc:end></sc:end>
</sc:segment>
</sc:segment-list>
</sc:area>
<sc:area name="Bootloader SWE" type="BOOTLOADER">
<sc:segment-list>
<sc:segment name="ROM page 2">
<sc:start></sc:start>
<sc:end></sc:end>
</sc:segment>
<sc:segment name="ROM page 3">
<sc:start></sc:start>
<sc:end></sc:end>
</sc:segment>
</sc:segment-list>
</sc:area>
<sc:area name="Application SWE 1" type="APPLICATION">
<sc:segment-list>
<sc:segment name="ROM page 4">
<sc:start></sc:start>
<sc:end></sc:end>
</sc:segment>
<sc:segment name="ROM page 5">
<sc:start></sc:start>
<sc:end></sc:end>
</sc:segment>
<sc:segment name="ROM page 6">
<sc:start></sc:start>
<sc:end></sc:end>
</sc:segment>
<sc:segment name="ROM page 7">
<sc:start></sc:start>
<sc:end></sc:end>
</sc:segment>
</sc:segment-list>
</sc:area>
<sc:area name="Application SWE 2" type="APPLICATION">
<sc:segment-list>
<sc:segment name="ROM page 8">
<sc:start></sc:start>
<sc:end></sc:end>
</sc:segment>
</sc:segment-list>
</sc:area>
<sc:area name="Application SWE 3" type="APPLICATION">
<sc:segment-list>
<sc:segment name="ROM page 9">
<sc:start></sc:start>
<sc:end></sc:end>
</sc:segment>
</sc:segment-list>
</sc:area>
<sc:area name="Application SWE 4" type="APPLICATION">
<sc:segment-list>
<sc:segment name="ROM page 10">
<sc:start></sc:start>
<sc:end></sc:end>
</sc:segment>
</sc:segment-list>
</sc:area>
</sc:area-list>
</sc:memory>
<sc:memory name="Internal RAM" type="RAM">
<sc:area-list>
<sc:area name="RAM" type="RAM">
<sc:segment-list>
<sc:segment name="RAM page 1">
<sc:start></sc:start>
<sc:end></sc:end>
</sc:segment>
<sc:segment name="RAM page 2">
<sc:start></sc:start>
<sc:end></sc:end>
</sc:segment>
<sc:segment name="RAM page 3">
<sc:start></sc:start>
<sc:end></sc:end>
</sc:segment>
<sc:segment name="RAM page 4">
<sc:start></sc:start>
<sc:end></sc:end>
</sc:segment>
<sc:segment name="RAM page 5">
<sc:start></sc:start>
<sc:end></sc:end>
</sc:segment>
</sc:segment-list>
</sc:area>
</sc:area-list>
</sc:memory>
<sc:memory name="Internal EEPROM" type="EEPROM">
<sc:area-list>
<sc:area name="EEPROM" type="EEPROM">
<sc:segment-list>
<sc:segment name="EEPROM page 1">
<sc:start></sc:start>
<sc:end></sc:end>
</sc:segment>
<sc:segment name="EEPROM page 2">
<sc:start></sc:start>
<sc:end></sc:end>
</sc:segment>
<sc:segment name="EEPROM page 3">
<sc:start></sc:start>
<sc:end></sc:end>
</sc:segment>
<sc:segment name="EEPROM page 4">
<sc:start></sc:start>
<sc:end></sc:end>
</sc:segment>
<sc:segment name="EEPROM page 5">
<sc:start></sc:start>
<sc:end></sc:end>
</sc:segment>
</sc:segment-list>
</sc:area>
</sc:area-list>
</sc:memory>
</sc:memory_segmentation> And from this file I need to make 3 Hashtables out of it one for ROM , RAM and EEPROM containg Segment information i.e. Segment start and end addresses and Area type of the segment....
If anyone could at least guide me with the basic commands and structure of the parser it would be really really great ...
Thanks a lot
AnishaNormally if you have no idea about X, the first thing you should do is google "X tutorial". You will find plenty of them out there. And the advantage is, they are better written than whatever we spend two minutes throwing together here. Not to mention that it saves us the two minutes.
But if you have specific questions with your SAX parser when you get it going, then ask them here. Actually, ask them in the XML forum here, not this one. -
I've written a program which is partly responsible for parsing an XML file that can be found on the web. I appear to be accessing the XML file correctly, but when I try to parse it I am running into a problem. I try to create a List object that contains all of the children of the root element. The code looks like this:
Document doc = parser.build(xmlFile);
Element root = doc.getRootElement();
List rootChildren = root.getChildren();But I get an error that say that "the type List is ambiguous". I am importing java.util.*. I am trying to do this exactly like a few examples I found on the web, but I can't seem to get past this issue. What do I need to keep Eclipse from telling me that List is not an ambiguous type.Maybe you haveimport java.util.*;
import java.awt.*;Both packages contains a List class.
In that case, the compiler doesn't know which one you're talking about.
If you don't need the java.awt.List class here, try not to import it.
If you need it, use the fully qualified class name in your code. -
Parse exisitng xml file and recreate another xml file with different struct
Is it possible in java using dom parser to parse an exisiting xml file and recreate a new xml file from data obtained by parsing old xml file.
I checked on old forum threads and everywhere either parsing xml file has been explained or creating new xml file from scratch has been shown.
Any examples/guidance will be appreciated....The general process is:
Document dom1 = ... // the parsed document
Document dom2 = ... // new document constructed on the fly
Node nD1 = ... // some random node found in dom1
// copy the node from dom1 and associate with dom2
Node nD2 = dom2.importNode(nD1, true);
// ... treat nD2 as a node which can now be inserted into dom2 ...
Node otherD2 = ... // some other node already in dom2
otherD2.appendChild(nD2);Note, in this example the nD1 node is copied (including any sub-nodes) into a new node, nD2. You can alternately move the node from one Document to another using Document.adoptNode(), however this may fail (see the javadoc). -
Parsing a XML file using Jdom-Problem.
Hi all,
I am reposting it as I was told to format the code and send it again.
I am trying to parse a xml file using a jdom java code.This code works fine if I remove xmlns attribute in the root element. (I get the expected result) .If the "xmlns" attribute is put in the xml as it should be then the parsing and retrieving returns null. Please tell me how to fix this issue.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Xml
<process name="CreateKBEntryService" targetNamespace="http://serena.com/CreateKBEntryService" suppressJoinFailure="yes" xmlns:tns="http://serena.com/CreateKBEntryService" xmlns="http://schemas.xmlsoap.org/ws/2003/03/business-process/" xmlns:bpelx="http://schemas.oracle.com/bpel/extension" xmlns:ora="http://schemas.oracle.com/xpath/extension" xmlns:nsxml0="http://localhost:8080/axis/services/CreateKBEntryService" xmlns:nsxml1="http://DefaultNamespace" xmlns:bpws="http://schemas.xmlsoap.org/ws/2003/03/business-process/">
<partnerLinks>
<partnerLink name="client" partnerLinkType="tns:CreateKBEntryService" myRole="CreateKBEntryServiceProvider"/>
<partnerLink name="CreateKBEntryPartnerLink" partnerLinkType="nsxml0:CreateKBEntryLink" partnerRole="CreateKBEntryProvider"/>
</partnerLinks>
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~`
Java:
import java.io.*;
import java.util.*;
import org.jdom.Document;
import org.jdom.Element;
import org.jdom.input.SAXBuilder;
public class sample1 {
public static void main(String[] args) throws Exception {
// create a XML parser and read the XML file
SAXBuilder oBuilder = new SAXBuilder();
Document oDoc = oBuilder.build(new File("**xml file location**"));
Element root = oDoc.getRootElement();
System.out.println(root.getName());
String tgtns= root.getAttributeValue("targetNamespace");
System.out.println("tgt ns "+ tgtns);
List list= root.getChildren("partnerLinks");
Iterator it1= list.iterator();
System.out.println("Iterator 1 - "+list.size());
while(it1.hasNext()){
Element partnerlinks = (Element)it1.next();
List list2= partnerlinks.getChildren("partnerLink");
System.out.println("iterator 2 - "+list2.size());
}~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Result:
Without Xmlns in xml file(Expected and correct output)
process
tgt ns http://serena.com/CreateKBEntryService
Iterator 1 - 1//expected and correct result that comes when I remove xmlns attribute from xml
iterator 2 - 2
Result with xmlns:
process
tgt ns http://serena.com/CreateKBEntryService
Iterator 1 - 0 //instead of 0 should return 1LOL
This is what you get for working 12 hours straight....
I changed:
xmlObject["mydoc"]["modelglue"]["event-handlers"]["event-handler"][i].xmlAttrib utes["name"]<br>
to:
#mydoc["modelglue"]["event-handlers"]["event-handler"][i].xmlAttrib utes["name"]#<br>
xmlObject is the name of my xml object in memory, and then you reference from the root of the xml doc down the chain.
Sorry for the inconvenience,
Rich -
Can Document Builder parse an XML file from a URL?
Warning: Java newbie here...
My problem is that I am able to parse an XML file if it is copied into my project, but not if it is a full URL. Here is what I got so far, that works.
import java.io.*;
import java.net.*;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
try {
File file = new File("path/to/file.xml");
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder db = dbf.newDocumentBuilder();
Document doc = db.parse(file);
doc.getDocumentElement().normalize();
NodeList nodeLst = doc.getElementsByTagName("Names");
for (int s = 0; s < nodeLst.getLength(); s++) {
Node parentNode = nodeLst.item(s);
if (parentNode.getNodeType() == Node.ELEMENT_NODE) {
Element parentElmnt = (Element) parentNode;
NodeList nameElmntLst = parentElmnt.getElementsByTagName("Name");
//etc.
} catch (Exception e){
e.printStackTrace();
}So building off of this I have tried to parse an input stream like this:
URL url = new URL("http://example.com/file.xml");
InputStream is = url.getInputStream();
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder db = dbf.newDocumentBuilder();
Document doc = db.parse(is);which gives me the following error
[Fatal Error] :-1:-1: Premature end of file.
LOG: HME receiver connected
org.xml.sax.SAXParseException: Premature end of file.
I also even tried to write the file locally like this:
URL url = new URL("http://example.com/file.xml");
HttpURLConnection urlcon = (HttpURLConnection) url.openConnection();
urlcon.connect();
InputStream is = urlcon.getInputStream();
File file = new File("path/to/file.xml");
OutputStream out = new FileOutputStream(file);
byte buf[] = new byte[1024];
int len;
while((len=is.read(buf))>0)
out.write(buf,0,len);
out.close();
is.close();
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder db = dbf.newDocumentBuilder();
Document doc = db.parse(file);This gives the same error.
If anyone can point me in the right direction I would forever thankful. I've tried search Google and the Sun forums, but haven't quite found the solution. I think it is because I need to try something else completely. Thank you for reading.
~~~~ Jeremyjmose wrote:
If I copy the page, it works as shown in the first code block. In the third codeblock the file is never even created, so I cannot tell if that works or not.So: having the parser access the URL fails, and having some other Java code access the URL also fails in the identical way? That suggests the problem is simply accessing the URL via Java code. Presumably when you downloaded the data from the URL, you used a browser to do it and not wget or something like that? -
Error "Cannot parse appinfo xml file."
Periodically my users are getting the error below when trying to launch BPC for Excel:
"Cannot parse appinfo xml file."
Seems this file is getting corrupted somehow. If I remove the file from their citrix profile and they relogin, the file is recreated and then they can launch BPC for Excel. Until then though, they get this error and sometimes it says the Web App server is unavailable, when it indeed is available.
Anyone experience this, or have any ideas as to the problem?
Thanks,
GregPlease notice that inquiries related to BPC topics should now be posted to dedicated forums.
Business Planning and Consolidations, version for SAP NetWeaver
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Please adjust any bookmarks or shortcuts you may have set previously to point to this forum.
Best regards,
[Jeffrey Holdeman|https://www.sdn.sap.com/irj/sdn/wiki?path=/display/profile/jeffrey+holdeman]
SAP BusinessObjects
Enterprise Performance Management
Regional Implementation Group -
How quickly parse big XML file (60 MB) ???
How quickly parse big XML file (60 MB) ???
I assume you mean load it into XML DB ?. Fundamentally your document is about the upper limit for 9.2.x. I would strongly recommend trying to break it up into a set of smaller documents using a SAX parser before trying to load it into XML DB. In 10g it should be possible to load much bigger documents than this.
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