<P>Hi</P>
<P>I request some help, the following is the task</P>
<P>I have an application which spits out xml as a string<BR>something like this</P>
<P>"xml=<?xml version="1.0" encoding="UTF-8"?><BR><session><BR> <!--Session Element --><BR> <resource>Session</resource><BR> <useridElement>kris</useridElement><BR> <passwordElement>kris</passwordElement><BR> </session>"</P>
<P>the code for writing xml is as follows</P>
<P><STRONG>public static String createDocument() <BR> {<BR> String xmlString="";<BR> <BR> // Create the root element<BR> Element sessionElement = new Element("session");<BR> //create the document<BR> <BR> Document myDocument = new Document (sessionElement);<BR> <BR> <BR> //add a comment<BR> sessionElement.addContent(new Comment("Session Element "));</STRONG></P>
<P><STRONG> //add some child elements<BR> /*<BR> * Note that this is the first approach to adding an element and<BR> * textual content. The second approach is commented out.<BR> */<BR> Element resource = new Element("resource");<BR> resource.addContent("session");<BR> sessionElement.addContent(resource);<BR> <BR> //add some more elements<BR> sessionElement.addContent(new Element("useridElement").addContent("kris"));<BR> sessionElement.addContent(new Element("passwordElement").addContent("kris"));<BR> </STRONG></P>
<P><STRONG> //print the document</STRONG></P>
<P><STRONG> try <BR> {<BR> XMLOutputter outputter = new XMLOutputter(" ", true);<BR> outputter.output(myDocument, System.out);<BR> System.out.println("XMLOUtputter created");<BR> //xmlString=outputter.outputString(myDocument);<BR> } <BR> catch (java.io.IOException e) <BR> {<BR> e.printStackTrace();<BR> }<BR> <BR> <BR> //return myDocument;<BR> return xmlString;<BR> }</STRONG></P>
<P><STRONG></STRONG> </P>
<P>***************end method *******************</P>
<P><BR>This string is posted to a servlet, which then does a </P>
<P><STRONG>String value = request.getParameter("xml"); <BR>MyParser myparser = new MyParser();<BR>resource = myparser.parseXML(value);</STRONG></P>
<P>and gets the whole xml string. I want to pass this string to a class that uses the JDOM API and extract the value for resource tag and do some processing.</P>
<P>My question is how is it done? , also is there a better way to set the identifier in the request object from the application for the servlet to get it out of the request object? </P>
<P>I tried something like this in my parsing class</P>
<P><STRONG>public String parseXml(String XmlStream)<BR> {<BR> String resource="";<BR> Document doc;<BR> try<BR> {<BR> System.out.println("inside parseXML");<BR> <BR> SAXBuilder sax = new SAXBuilder();<BR> doc = sax.build(XmlStream);<BR> Element root = doc.getRootElement();<BR> <BR> Element r = root.getChild(resource);<BR> String re = r.toString();<BR> resource = re;<BR> }<BR> catch(JDOMException e) <BR> {<BR> e.printStackTrace();<BR> }<BR> catch (Exception e)<BR> {<BR> e.printStackTrace();<BR> System.out.println("parsing exception");<BR> }<BR> <BR> <BR> return resource;<BR> }</STRONG></P>
<P><STRONG></STRONG> </P>
<P>and this throws the following exception</P>
<P><FONT color=purple>********** error *******************</FONT></P>
<P><FONT color=#800080></FONT><FONT color=purple>org.jdom.JDOMException: Error on line 0: File "" not found.<BR> at org.jdom.input.SAXBuilder.build(SAXBuilder.java:407)<BR> at org.jdom.input.SAXBuilder.build(SAXBuilder.java:533)<BR> at com.sone.util.XMLResourceTagParser.parseXml(XMLResourceTagParser.java:87)<BR> at com.sone.util.XMLResourceTagParser.getResourceTag(XMLResourceTagParser.java:64)<BR> at com.sone.servlets.CommandServlet.service(CommandServlet.java:101)<BR> at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)<BR> at org.apache.tomcat.core.ServletWrapper.doService(ServletWrapper.java:404)<BR> at org.apache.tomcat.core.Handler.service(Handler.java:286)<BR> at org.apache.tomcat.core.ServletWrapper.service(ServletWrapper.java:372)<BR> at org.apache.tomcat.core.ContextManager.internalService(ContextManager.java:797)<BR> at org.apache.tomcat.core.ContextManager.service(ContextManager.java:743)<BR> at org.apache.tomcat.service.connector.Ajp12ConnectionHandler.processConnection(Ajp12ConnectionHandler.java:166)<BR> at org.apache.tomcat.service.TcpWorkerThread.runIt(PoolTcpEndpoint.java:416)<BR> at org.apache.tomcat.util.ThreadPool$ControlRunnable.run(ThreadPool.java:498)<BR> at java.lang.Thread.run(Thread.java:484)<BR>Root cause: org.xml.sax.SAXParseException: File "" not found.<BR> at org.apache.xerces.framework.XMLParser.reportError(XMLParser.java:1014)<BR> at org.apache.xerces.readers.DefaultEntityHandler.startReadingFromDocument(DefaultEntityHandler.java:499)<BR> at org.apache.xerces.framework.XMLParser.parseSomeSetup(XMLParser.java:304)<BR> at org.apache.xerces.framework.XMLParser.parse(XMLParser.java:899)<BR> at org.jdom.input.SAXBuilder.build(SAXBuilder.java:395)<BR> at org.jdom.input.SAXBuilder.build(SAXBuilder.java:533)<BR> at com.sone.util.XMLResourceTagParser.parseXml(XMLResourceTagParser.java:87)<BR> at com.sone.util.XMLResourceTagParser.getResourceTag(XMLResourceTagParser.java:64)<BR> at com.sone.servlets.CommandServlet.service(CommandServlet.java:101)<BR> at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)<BR> at org.apache.tomcat.core.ServletWrapper.doService(ServletWrapper.java:404)<BR> at org.apache.tomcat.core.Handler.service(Handler.java:286)<BR> at org.apache.tomcat.core.ServletWrapper.service(ServletWrapper.java:372)<BR> at org.apache.tomcat.core.ContextManager.internalService(ContextManager.java:797)<BR> at org.apache.tomcat.core.ContextManager.service(ContextManager.java:743)<BR> at org.apache.tomcat.service.connector.Ajp12ConnectionHandler.processConnection(Ajp12ConnectionHandler.java:166)<BR> at org.apache.tomcat.service.TcpWorkerThread.runIt(PoolTcpEndpoint.java:416)<BR> at org.apache.tomcat.util.ThreadPool$ControlRunnable.run(ThreadPool.java:498)<BR> at java.lang.Thread.run(Thread.java:484)</FONT></P>
<P>******************* end error****************************</P>
<P>can any of the gurus help me overcome this problem, this is very important for me right now...</P>
<P>Thanks</P>
<P>Appreciate your time and response</P>
<P>kris</P>
<P> </P>
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<P><BR> </P><BR><BR><P> </P>
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