JDOM Classpath Help Required

[kpandya]

Hi Guys,

I am trying to follow an example using JDOM, which will write, update delete an XML file.

I thought I had set the JDOM & Xerces classpaths correctly, but I'm guessing not now:

I had one error in my java file as follows:

C:\Tomcat 5.5\webapps\ROOT\XMLEdit>javac CATALOGManager.java
CATALOGManager.java:81: illegal escape character
FileWriter f = new FileWriter(new File("C:\\Tomcat 5.5\\webapps\\ROOT\\X
MLEdit\CATALOG1.xml"));
^
1 error

So I forgot the extra '\' in the path. Not a problem.

When I then went onto compile the java file thinking all was ok, I got the following errors:

C:\Tomcat 5.5\webapps\ROOT\XMLEdit>javac CATALOGManager.java
CATALOGManager.java:3: package org.jdom does not exist
import org.jdom.*;
^
CATALOGManager.java:4: package org.jdom.output does not exist
import org.jdom.output.XMLOutputter;
^
CATALOGManager.java:6: package org.jdom.input does not exist
import org.jdom.input.*;
^
CATALOGManager.java:7: package org.jdom.output does not exist
import org.jdom.output.*;
^
CATALOGManager.java:12: cannot find symbol
symbol : class Document
location: class XMLEdit.CATALOGManager
Document docs;
^
CATALOGManager.java:18: cannot find symbol
symbol : class SAXBuilder
location: class XMLEdit.CATALOGManager
SAXBuilder builder = new SAXBuilder();
^
CATALOGManager.java:18: cannot find symbol
symbol : class SAXBuilder
location: class XMLEdit.CATALOGManager
SAXBuilder builder = new SAXBuilder();
^
CATALOGManager.java:19: cannot find symbol
symbol : variable doc
location: class XMLEdit.CATALOGManager
doc = builder.build(filename);
^
CATALOGManager.java:20: cannot find symbol
symbol : variable doc
location: class XMLEdit.CATALOGManager
product = doc.getRootElement().getChildren();
^
CATALOGManager.java:21: cannot find symbol
symbol : class JDOMException
location: class XMLEdit.CATALOGManager
} catch (JDOMException e) {
^
CATALOGManager.java:36: cannot find symbol
symbol : class Element
location: class XMLEdit.CATALOGManager
Element product = (Element)product.get(index);
^
CATALOGManager.java:36: cannot find symbol
symbol : class Element
location: class XMLEdit.CATALOGManager
Element product = (Element)product.get(index);
^
CATALOGManager.java:41: cannot find symbol
symbol : class Element
location: class XMLEdit.CATALOGManager
Element product = (Element)product.get(index);
^
CATALOGManager.java:41: cannot find symbol
symbol : class Element
location: class XMLEdit.CATALOGManager
Element product = (Element)product.get(index);
^
CATALOGManager.java:47: cannot find symbol
symbol : class Element
location: class XMLEdit.CATALOGManager
Element product = (Element)product.get(index);
^
CATALOGManager.java:47: cannot find symbol
symbol : class Element
location: class XMLEdit.CATALOGManager
Element product = (Element)product.get(index);
^
CATALOGManager.java:53: cannot find symbol
symbol : class Element
location: class XMLEdit.CATALOGManager
Element product = (Element)product.get(index);
^
CATALOGManager.java:53: cannot find symbol
symbol : class Element
location: class XMLEdit.CATALOGManager
Element product = (Element)product.get(index);
^
CATALOGManager.java:60: cannot find symbol
symbol : variable products
location: class XMLEdit.CATALOGManager
products.remove(index);
^
CATALOGManager.java:64: cannot find symbol
symbol : class Element
location: class XMLEdit.CATALOGManager
Element product = new Element("product");
^
CATALOGManager.java:64: cannot find symbol
symbol : class Element
location: class XMLEdit.CATALOGManager
Element product = new Element("product");
^
CATALOGManager.java:65: cannot find symbol
symbol : class Attribute
location: class XMLEdit.CATALOGManager
product.setAttribute(new Attribute("id", id));
^
CATALOGManager.java:66: cannot find symbol
symbol : class Element
location: class XMLEdit.CATALOGManager
product.addContent(new Element("name").setText(name));
^
CATALOGManager.java:67: cannot find symbol
symbol : class Element
location: class XMLEdit.CATALOGManager
product.addContent(new Element("price").setText(price));
^
CATALOGManager.java:73: cannot find symbol
symbol : class Sortname
location: class XMLEdit.CATALOGManager
catalog.sort(product, new Sortname());
^
CATALOGManager.java:73: cannot find symbol
symbol : variable catalog
location: class XMLEdit.CATALOGManager
catalog.sort(product, new Sortname());
^
CATALOGManager.java:78: cannot find symbol
symbol : variable XMLOutputter
location: class XMLEdit.CATALOGManager
XMLOutputter.output(" ",true);
^
CATALOGManager.java:80: cannot find symbol
symbol : variable outputter
location: class XMLEdit.CATALOGManager
outputter.setTextNormalize(true);
^
CATALOGManager.java:81: cannot find symbol
symbol : class FileWriter
location: class XMLEdit.CATALOGManager
FileWriter f = new FileWriter(new File("C:\\Tomcat 5.5\\webapps\\ROOT\\X
MLEdit\\CATALOG1.xml"));
^
CATALOGManager.java:81: cannot find symbol
symbol : class FileWriter
location: class XMLEdit.CATALOGManager
FileWriter f = new FileWriter(new File("C:\\Tomcat 5.5\\webapps\\ROOT\\X
MLEdit\\CATALOG1.xml"));
^
CATALOGManager.java:81: cannot find symbol
symbol : class File
location: class XMLEdit.CATALOGManager
FileWriter f = new FileWriter(new File("C:\\Tomcat 5.5\\webapps\\ROOT\\X
MLEdit\\CATALOG1.xml"));
^
CATALOGManager.java:82: cannot find symbol
symbol : variable doc
location: class XMLEdit.CATALOGManager
outputter.output(doc, f);
^
CATALOGManager.java:82: cannot find symbol
symbol : variable outputter
location: class XMLEdit.CATALOGManager
outputter.output(doc, f);
^
CATALOGManager.java:104: cannot find symbol
symbol : method setIndex(int)
location: class XMLEdit.CATALOGManager
d.setIndex(i);
^
CATALOGManager.java:111: cannot find symbol
symbol : class XMLOutputter
location: class XMLEdit.CATALOGManager
XMLOutputter outputter = new XMLOutputter();
^
CATALOGManager.java:111: cannot find symbol
symbol : class XMLOutputter
location: class XMLEdit.CATALOGManager
XMLOutputter outputter = new XMLOutputter();
^
CATALOGManager.java:113: cannot find symbol
symbol : variable doc
location: class XMLEdit.CATALOGManager
outputter.output(doc, System.out);
^
37 errors

Which I cant understand. Could someone helpout setting the classpath for JDOM. As I have put the JDOM & Xerces jar files in my classpath and set the path as follows (using the environment variable in Windows):

C:\Program Files\Java\jdk1.5.0_02\bin;.;C:\Program Files\Java\jdk1.5.0_02\lib\jdom.jar; C:\Program Files\Java\jdk1.5.0_02\lib\xerces.jar"C:\Tomcat 5.5\common\lib\servlet-api.jar";"C:\Tomcat 5.5\common\lib\jsp-api.jar";"C:\Tomcat 5.5\common\lib\catalina-root.jar";"C:\Tomcat 5.5\common\lib\jdom.jar";"C:\Tomcat 5.5\common\lib\xerces.jar"

Is this incorrect? Is this what the errors are referring to?
Any Help much appreciated.

[nspils]

The path is finicky.

Lose the quotation marks

Take out the space before the first "xerces" entry and add a semicolon after it before the next "C:\"

Put a semicolon at the end

[kpandya]

Hi I amended the class path to as follows:

set CLASSPATH=.;"C:\Tomcat 5.5\common\lib\servlet-api.jar";"C:\Tomcat 5.5\common\lib\jsp-api.jar";"C:\Tomcat 5.5\common\lib\catalina-root.jar";"C:\Tomcat 5.5\common\lib\jdom.jar";"C:\Tomcat 5.5\common\lib\xerces.jar";"C:\Tomcat 5.5\webapps\ROOT\XMLEdit";C:\Program Files\Java\jdk1.5.0_02\lib\tools.jar;C:\Program Files\Java\jdk1.5.0_02\lib\jdom.jar;C:\Program Files\Java\jdk1.5.0_02\lib\xerces.jar;

Still get these errors:

C:\Tomcat 5.5\webapps\ROOT\XMLEdit>javac CATALOGManager.java
CATALOGManager.java:29: cannot find symbol
symbol : variable index
location: class XMLEdit.CATALOGManager
index = i;
^
CATALOGManager.java:38: cannot find symbol
symbol : variable index
location: class XMLEdit.CATALOGManager
Element product = (Element)products.get(index);
^
CATALOGManager.java:55: cannot find symbol
symbol : variable index
location: class XMLEdit.CATALOGManager
Element product = (Element)products.get(index);
^
CATALOGManager.java:57: cannot find symbol
symbol : method setValue(java.lang.String)
location: class org.jdom.Element
product.getChild("name").setValue(name);
^
CATALOGManager.java:58: cannot find symbol
symbol : method setValue(java.lang.String)
location: class org.jdom.Element
product.getChild("price").setValue(price);
^
CATALOGManager.java:62: cannot find symbol
symbol : variable index
location: class XMLEdit.CATALOGManager
products.remove(index);
^
CATALOGManager.java:70: cannot find symbol
symbol : method add(org.jdom.Element)
location: class org.jdom.Element
product.add(product);
^
CATALOGManager.java:75: cannot find symbol
symbol : class Sortname
location: class XMLEdit.CATALOGManager
catalog.sort(products, new Sortname());
^
CATALOGManager.java:75: cannot find symbol
symbol : variable catalog
location: class XMLEdit.CATALOGManager
catalog.sort(products, new Sortname());
^
CATALOGManager.java:80: cannot find symbol
symbol : method output(java.lang.String,boolean)
location: class org.jdom.output.XMLOutputter
XMLOutputter.output(" ",true);
^
CATALOGManager.java:82: cannot find symbol
symbol : variable outputter
location: class XMLEdit.CATALOGManager
outputter.setTextNormalize(true);
^
CATALOGManager.java:83: cannot find symbol
symbol : class FileWriter
location: class XMLEdit.CATALOGManager
FileWriter f = new FileWriter(new File("C:\\Tomcat 5.5\\webapps\\ROOT\\X
MLEdit\\CATALOG1.xml"));
^
CATALOGManager.java:83: cannot find symbol
symbol : class FileWriter
location: class XMLEdit.CATALOGManager
FileWriter f = new FileWriter(new File("C:\\Tomcat 5.5\\webapps\\ROOT\\X
MLEdit\\CATALOG1.xml"));
^
CATALOGManager.java:83: cannot find symbol
symbol : class File
location: class XMLEdit.CATALOGManager
FileWriter f = new FileWriter(new File("C:\\Tomcat 5.5\\webapps\\ROOT\\X
MLEdit\\CATALOG1.xml"));
^
CATALOGManager.java:84: cannot find symbol
symbol : variable docs
location: class XMLEdit.CATALOGManager
outputter.output(docs, f);
^
CATALOGManager.java:84: cannot find symbol
symbol : variable outputter
location: class XMLEdit.CATALOGManager
outputter.output(docs, f);
^
CATALOGManager.java:106: cannot find symbol
symbol : method seti(int)
location: class XMLEdit.CATALOGManager
d.seti(i);
^
CATALOGManager.java:107: cannot find symbol
symbol : method getname()
location: class XMLEdit.CATALOGManager
System.out.println(d.getname() + "/" + d.getprice());
^
CATALOGManager.java:107: cannot find symbol
symbol : method getprice()
location: class XMLEdit.CATALOGManager
System.out.println(d.getname() + "/" + d.getprice());
^
CATALOGManager.java:115: cannot find symbol
symbol : variable docs
location: class XMLEdit.CATALOGManager
outputter.output(docs, System.out);
^
20 errors

I'm not sure if I have put the jdom.jar & xerces.jar in the right folders. Could anyone advise as to where I should be dropping the jar files.

[Joe Beam]

you don't need "" s

I'd put them in the lib folder of your project. Also you have two paths to jdom.jar and xerces.jar

C:\Tomcat 5.5\common\lib\jdom.jar;C:\Tomcat 5.5\common\lib\xerces.jar;
C:\Program Files\Java\jdk1.5.0_02\lib\jdom.jar;C:\Program Files\Java\jdk1.5.0_02\lib\xerces.jar

I'm pretty sure the first one on the path will be used.

[kpandya]

Do you not need the "" s if you have spaces in the paths?

for example Tomcat 5.5. This has a space in between so I though this has to be in quotes?

Ok I have tried every combination I can think of with the class path. I have placed the jdom.jar and xerces.jar files in the lib folder of my project, taken out the quotes. The classpath now looks like this:

set CLASSPATH=.;C:\Tomcat 5.5\common\lib\servlet-api.jar;C:\Tomcat 5.5\common\lib\jsp-api.jar;C:\Tomcat 5.5\common\lib\catalina-root.jar;C:\Tomcat 5.5\webapps\ROOT\WEB-INF\lib\jdom.jar;C:\Tomcat 5.5\webapps\ROOT\WEB-INF\lib\xerces.jar;C:\Tomcat 5.5\webapps\ROOT\XMLEdit;C:\Program Files\Java\jdk1.5.0_02\lib\tools.jar;

I still get the same errors. Is there any way to test the jar files or any kind of test that can be performed?

[kpandya]

Hi Guys, I believe the problem I have is not now the classpath but something to do with the code:

I am still getting these errors:

C:\Tomcat 5.5\webapps\ROOT\XMLEdit>javac CATALOGManager.java
CATALOGManager.java:77: cannot find symbol
symbol : class SortName
location: class XMLEdit.CATALOGManager
Collections.sort(products, new SortName());
^
CATALOGManager.java:82: cannot find symbol
symbol : constructor XMLOutputter(java.lang.String,boolean)
location: class org.jdom.output.XMLOutputter
XMLOutputter outputter = new XMLOutputter(" ",true);
^
CATALOGManager.java:84: cannot find symbol
symbol : method setTextNormalize(boolean)
location: class org.jdom.output.XMLOutputter
outputter.setTextNormalize(true);
^
CATALOGManager.java:85: cannot find symbol
symbol : class FileWriter
location: class XMLEdit.CATALOGManager
FileWriter f = new FileWriter(new File("C:\\Tomcat 5.5\\webapps\\ROOT\
MLEdit\\CATALOG.xml"));
^
CATALOGManager.java:85: cannot find symbol
symbol : class FileWriter
location: class XMLEdit.CATALOGManager
FileWriter f = new FileWriter(new File("C:\\Tomcat 5.5\\webapps\\ROOT\
MLEdit\\CATALOG.xml"));
^
CATALOGManager.java:85: cannot find symbol
symbol : class File
location: class XMLEdit.CATALOGManager
FileWriter f = new FileWriter(new File("C:\\Tomcat 5.5\\webapps\\ROOT\
MLEdit\\CATALOG.xml"));
^
Note: CATALOGManager.java uses unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
6 errors

Now the errors only seem to stem when I insert these parts of code:


public void buildDocument(String filename) {
try {
SAXBuilder builder = new SAXBuilder();
Document doc = builder.build("C:\\Tomcat 5.5\\webapps\\ROOT\\XMLEdit\\CATALOG.xml");
products = doc.getRootElement().getChildren();
} catch (JDOMException e) {
e.printStackTrace();
}
}

and

public void sort() {
Collections.sort(products, new SortName());
}


public void save(String filename) {
XMLOutputter outputter = new XMLOutputter(" ",true);
try {
outputter.setTextNormalize(true);
FileWriter f = new FileWriter(new File("C:\\Tomcat 5.5\\webapps\\ROOT\\XMLEdit\\CATALOG.xml"));
outputter.output(doc, f);
f.close();
} catch (IOException e) {
e.printStackTrace();
}
}


Can any one see anything obvious that I am missing?
Many Thanks