XML SAX parser that support LexicalHandler

Hello,
I'm looking for an XML SAX parser that support a LexicalHandler.
I have xml files that are not well formed, ie: (&, <, >, etc...) characters within tags and I need to ignore them.
Anyone have a link to some opensource library ??
Thanks,
Samir

Don't waste your time. Using a LexicalHandler isn't going to help with parsing malformed XML. You should get the person who produced those files to replace them with correct XML.
PC²

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I do not understand why the SAX parser cannot support the special character like ¡ but it can replace the " & < > to ", &, <, >, ,, but other characters will be replaced to empty charater.
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Edited by: 844086 on 2011-3-14 上午2:27
Edited by: 844086 on 2011-3-14 上午2:27

I quote:
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Hi everyone,
I have written a mini server that parses XML files into SQL queries.
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     private String long_description;
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          setRepeat_pattern(r_p);
          setValid_period(v_p);
          setStatus(s);
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     public void setUserID (int x)                         { this.userID = x ;}
     public void setEventID (int x)                         { this.eventID = x ;}
     public void setShort_description (String x)          { this.short_description = x ;}
     public void setLong_description (String x)          { this.long_description = x ;}
     public void setDate_Time(Date x)                    { this.date_time = x ;}
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     public int           getUserID()                              { return this.userID;}
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     public Date        getDate_Time()                         { return this.date_time;}
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     public String      getValid_period()                    { return this.valid_period;}
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I see.
I try to correct this problem by removing super();
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Try something like this:
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import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
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http://java.sun.com/webservices/jaxp/dist/1.1/docs/tutorial/sax/work/Echo02.java
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<?xml version="1.0" encoding="UTF-8"?>
<root>
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<sal>3000</sal>
</emp>
<emp>
<ename>bbb</ename>
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import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;
import org.xml.sax.XMLReader;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.Attributes;
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import oracle.xml.sql.*;
import oracle.sql.*;
import oracle.jdbc.*;
import oracle.jdbc.pool.OracleDataSource;
import java.util.*;
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String table_name="";
String table_name_2="";
String sql="";
String value_clause="";
StringBuffer value_clauseBuffer;
String Insert_sql="";
int flag;
String columnNames="";
String questionmarks="";
static String conStr = "jdbc:oracle:thin:@abcd1234:1521:dss501";
static Connection conn;
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int j = 0;
int emptyElementFlag = 0;
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String buf = (new String(ch, start, length)).trim();
if (thisElement != "root"){
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Thanks 58871!
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generating report /tmp/pyJasper/compiled-reports/6390c37d0ea810c7fae3e647c2f86817.jasper
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at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
2010-03-04 09:15:59.073::WARN: /pyJasper/jasper.py
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at net.sf.jasperreports.engine.xml.JRXmlLoader.loadXML(JRXmlLoader.java:226)
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at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
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THANK YOU VERY MUCH!!!! :)

Hi thanks you very much for the reply.
In my message I forgot to mention that I edited my prologs to "<?xml version = "1.0" encoding = "UTF-8"?>" and the jetty.xml that has the server configuration has:
<?xml version = "1.0" encoding = "UTF-8"?>
<!DOCTYPE Configure PUBLIC "-//Mort Bay Consulting//DTD Configure//EN" "http://jetty.mortbay.org/configure.dtd">
I apologize for the clarity of my message. I meant to say that I was wondering whether the problem is with the xm files that java has, or the xml files that are in the pyjasper package that I downloaded?
I also checked for byte order mark using hex editor to see if those six characters were in front of my xml files. None of the files in the pyjasper package had the BOM so that solution did not work.
Is there something wrong with the above xml prolog?
I have been reading tons of different posts and stuf trying to figure this out for the past month but juts cannot seem to get it to work.
Thanks.

SAX Parser,setValidationMode

We have to parse an XML of 5 MB size and load into the
Database.We started using the DOM Parser(PL/SQL) and getting the
Out of Memory errors.(The Java Pool Size is 250 MB).As per the
Oracle Documentation we have stated using the SAX Parser.But
Using SAXParser we are not able to use the "setValidationMode"
Method.I am getting "Method setValidationMode(boolean) not found
in interface org.xml.sax.Parser." error message.
Can any one help me what is the problem.
Thanks in Advance.

SAX should mask the fact that some content is specified inside of a CDATA section.. It is just characters.
The safest way to process characters is to setup a StringBuffer or equivalent in the startElement method. There is a variation of the StringBuffer append method that has the same three parameters (char[], int, int) as the characters signature. The characters method may be called many times before you are given all of the content of the string. How it decides when to call you depends on the parser and is subject to change over time. But, if you accumulate the contents in each call of characters and do the toString() in the endElement method you are going to get the right content. Lots of people over the last year or so that I've been involved in this forum have had other ways they thought were better than this, but most of them have eventually tried and accepted this way because it works and their "better" way did not.
It looks like you got the content for the CDATA section (Please refer...).I'm not sure what your problem is.
Dave Patterson

SAX Parser throws NullPointerException

Hi.
I'm using WLS6.1 SP1 built-in XML SAX parser. The code is like,
SAXParserFactory factory = SAXParserFactory.newInstance();
XMLReader parser = factory.newSAXParser().getXMLReader();
// Add a error handler
eh = new MyErrorHandler();
parser.setErrorHandler(eh);
parser.setContentHandler(this);
// Enable namespace
parser.setFeature("http://xml.org/sax/features/namespaces", true);
// Enable validation
parser.setFeature("http://xml.org/sax/features/validation", false);
parser.parse(new InputSource(in));
The NullPointerException is thrown at -
org.apache.xerces.framework.XMLParser.parse(XMLParser.java:965)
after the end element of (</eb:MessageHeader>) before the start element of <SOAP-ENV:Header>.
The XML file is attached.
=====================================
However, I tried to parse this document on xerces parser 131.
It worked fine.
=====================================
Did I miss any thing? It seems like a bug to me.
Thanks!
[header.xml]

SAX should mask the fact that some content is specified inside of a CDATA section.. It is just characters.
The safest way to process characters is to setup a StringBuffer or equivalent in the startElement method. There is a variation of the StringBuffer append method that has the same three parameters (char[], int, int) as the characters signature. The characters method may be called many times before you are given all of the content of the string. How it decides when to call you depends on the parser and is subject to change over time. But, if you accumulate the contents in each call of characters and do the toString() in the endElement method you are going to get the right content. Lots of people over the last year or so that I've been involved in this forum have had other ways they thought were better than this, but most of them have eventually tried and accepted this way because it works and their "better" way did not.
It looks like you got the content for the CDATA section (Please refer...).I'm not sure what your problem is.
Dave Patterson

SAX Parser is dropping characters

Hello,
We have noticed that the BEA implementation of the SAX parser appears
to drop characters from the start of an attribute's value.
For example:
<attribute-value>au.com.bonline.bean.SomeClass</attribute-value>
becomes
online.bean.SomeClass
after parsing.
Has anyone seen this behaviour before ?
Previously we were running the application under tomcat and did not have
this issue with the implementation of the SAX parser that comes with
tomcat.
Are there changes we have to make to the way we code against the
SAX parser that we might have missed moving from tomcat to BEA ?
Thankyou,
Brian Gorrie
Programmer/Analyst
B Digital

Hi Brian,
I just tried this simple program with the output below; it worked OK
using WLS 8.1
What WLS version and can you provide a test case?
Thanks,
Bruce
C:\stephens\CRs\crXML>type attr.xml
<?foo version="1.0" ?>
<A>
<attribute-value>au.com.bonline.bean.SomeClass</attribute-value>
</A>
C:\stephens\CRs\crXML>java -classpath .;%CLASSPATH% sax attr.xml
Start document
Processing Instruction:
target: foo
data: version="1.0"
Start element: A
Characters: "\n"
Start element: attribute-value
Characters: "au.com.bonline.bean.SomeClass"
End element: attribute-value
Characters: " \n"
End element: A
End document
Brian Gorrie wrote:
>
Hello,
We have noticed that the BEA implementation of the SAX parser appears
to drop characters from the start of an attribute's value.
For example:
<attribute-value>au.com.bonline.bean.SomeClass</attribute-value>
becomes
online.bean.SomeClass
after parsing.
Has anyone seen this behaviour before ?
Previously we were running the application under tomcat and did not have
this issue with the implementation of the SAX parser that comes with
tomcat.
Are there changes we have to make to the way we code against the
SAX parser that we might have missed moving from tomcat to BEA ?
Thankyou,
Brian Gorrie
Programmer/Analyst
B Digital[sax.java]

Import org.xml.sax is deprecated

Hi All, Please help ... I am a beginner of using SAX with Java. I think I don't have the org.xml.sax.* classes in my java class. So, I downloaded "saxjava-1.0" from www.megginson.com (I hope I downloaded the correct one). I unzipped the file and put it in my Java folder. However, it doesn't work when I run my Java code. I think I might missed out something ... like didn't import the file to Java classes? If so, how can I do that? My java code is trying to read an XML file and print out how many books in the xml file. After compiled, it has the following message:
"package com.jclark.xml.sax does not exists"
and 2 compiler warnings:
C:\XML\BookCounter.java:12:warning:org.xml.sax.HandlerBase in org.xml.sax has been deprecated.
C:\XML\BookCounter.java:21:warning:org.xml.sax.Parser in org.xml.sax has been deprecated.
My java code as follow:
import org.xml.sax.*;
public class BookCounter extends HandlerBase
public static void main (String args[]) throws Exception
(new BookCounter()).countBooks();
public void countBooks() throws Exception
Parser p = new com.jclark.xml.sax.Driver();
p.setDocumentHandler(this);
p.parse("file:///C:/books.xml");

the error message "package com.jclark.xml.sax does not exists" has nothign to do with the post you coded, as it imports "org.xml.sax.*" and not "com.jclark.xml.sax.*".
download sax from here: http://sourceforge.net/project/showfiles.php?group_id=29449 (sax2r2.jar), add it to your classpath and read the following how to use it:
http://java.sun.com/webservices/docs/ea2/tutorial/doc/JAXPSAX3.html#64190

I need help using a SAX parser

Hello,
I have a class that goes out to the web and retrieves an xml document w/o ever writing it to disk. I like to parse that object using SAX and a class that extends HandlerBase. Can any one show me how to parse an xml document that lives in memory rather than in a file? I've found many examples, but all of them assume you are reading from a file system. Any help is greatly appreciated.
Here is the jist of my code :
// Class 1 makes a request to another server based on some variable data. I've created a messenger object that handles all of the communications and returns the data in a DataInputStream
XMLMessage xml = new XMLMessage();
xml.createRequest(args[0],args[1],args[2]);
XMLMessenger messenger = new XMLMessenger(xml.getDoc());
DataInputStream dis = messenger.transferDocument();
ResponseObj resp = new ResponseObj();
resp.read(dis);
System.out.println(resp.getvalue1() + "*" + resp.getvalue2()+ "*");
// Class 2 is the ResponseObj and I want to use something similar to this read method, but
// I can't get it to work with a data stream, instead of a string that represents a file.
public void read(String filename) throws java.lang.Exception {
Class c = Class.forName("com.ibm.xml.parser.SAXDriver");
     org.xml.sax.Parser parser = (org.xml.sax.Parser)c.newInstance();
     parser.setDocumentHandler(this);
     parser.parse(filename);

Thanks for you help. I've modified my read() method to work like this :
org.xml.sax.Parser parser = new com.ibm.xml.parser.SAXDriver();
parser.setDocumentHandler(this);
InputSource is = new InputSource(dis);
parser.parse(is);
This makes sense, but I'm still not getting any thing returned from the startElement(),characters(), or endElement() methods. It reports no errors, it just doesn't happen. Do you have any suggestions on how to debug this? I'm stumped, but really need to get this working.

XML SAX parser that support LexicalHandler

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