Re: Help in retrieving XML contant submitted via J2ME

[email protected] wrote:
> hi all,
> 	i have written a J2ME client that, using ksoap, sends XML request
> to a servlet.
> in the servlet (running on JBoss), i am trying to parse the XML request using
> AXIS 1.1, but the code keeps on giving me a null pointer exception when i try
> to read the content of the message.


Hi Marco,

the message syntax seems correct.

Did you already try to generate the same message using Axis in order to see if 
there are any significant differences and/or if Axis is able to read the same 
message when generated using Axis?

Best,
Stefan




> here is the message
> 
> <v:Envelope xmlns:i="http://www.w3.org/1999/XMLSchema-instance" 
>             xmlns:d="http://www.w3.org/1999/XMLSchema" 
>             xmlns:c="http://schemas.xmlsoap.org/soap/encoding/" 
>             xmlns:v="http://schemas.xmlsoap.org/soap/envelope/">
>   <v:Header />
>    <v:Body>
>      <n0:agency id="o0" c:root="1" xmlns:n0="http://www.tgmm.com/agenciesdemo">
>         <name i:type="d:string">testagency</name>
>         <tel i:type="d:string">12234</tel>
>         <email i:type="d:string">[email protected]</email>
>         <contacted i:type="d:string">01012003</contacted>
>         <contactperson i:type="d:string">Myself</contactperson>
>     </n0:agency>
>   </v:Body>
> </v:Envelope>
> 
> the code for retrieving it is as follows
> 
> Enumeration enumeration = request.getHeaderNames();
> MimeHeaders mimeHeaders = new MimeHeaders();
> while (enumeration.hasMoreElements())		{
> 	String string1 = (String)enumeration.nextElement();
> 	String string2 = request.getHeader(string1);
> 	mimeHeaders.addHeader(string1, string2);
> }
> System.err.println("Now instantianting message..");
> MessageFactory factory = MessageFactory.newInstance();
> SOAPMessage message = factory.createMessage(mimeHeaders, stream); 
> System.err.println("OK GOT THE MESSAGE..");
> SOAPPart soapPart = message.getSOAPPart();
> System.err.println("OK GOT THE PART..");
> SOAPEnvelope envelope = soapPart.getEnvelope();
> 
> and the output is this (showing the exception when i try to retrieve the envelope..)
> 
> 13:25:10,927 ERROR [STDERR] Now instantianting message..
> 13:25:10,977 ERROR [STDERR] OK GOT THE MESSAGE..
> 13:25:10,977 ERROR [STDERR] OK GOT THE PART..
> 13:25:11,007 ERROR [STDERR] Exception in reading stream: java.lang.NullPointerEx
> ception
> 
> If i write my own PullParser that is just looking for the agency etc tags, it works fine 
> 
> so it looks like AXIS and ksoap cannot talk to each other...
> 
> is there a solution for parsing SOAP messages sent by ksoap client?
> 
> thanx in advance and regards
> 	marco
> 
> 
> 
> 
> 
> 
> 
>> -----Original Message-----
>>From: 	Mistroni Marco (NET-IMN/Espoo)  
>>Sent:	23 August, 2003 20:05
>>To:	'[email protected]'
>>Subject:	help in parsing soap messages
>>
>>hi all,	
>>	i am fairly new to ksoap. i have written 'two way' xml 
>>communication
>>between a J2ME app (midp toolkit 2.0) and a serverside app 
>>implemented with struts
>>on jboss.
>>so far, i have been using my own xml format,but now i want to 
>>move to SOAP.
>>
>>writing SOAP from J2ME to serverside logic works fine, but 
>>now i have the problem
>>of parsing the SOAP request.
>>
>>i have tried to use ksoap for parsing this simple XML
>>
>><?xml version="1.0"?>
>><SOAP-ENV:Envelope
>>  xmlns:SOAP-ENV="http://www.w3.org/2001/12/soap-envelope"
>>  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
>>  xmlns:xsd="http://www.w3.org/2001/XMLSchema">
>>  <SOAP-ENV:Body>
>>   <agencies>
>>    <agency>
>>      <name>name1</name>
>>      <tel>1234</tel>
>>    </agency>
>>   </agencies>
>>  </SOAP-ENV:Body>
>></SOAP-ENV:Envelope>
>>
>>
>>i have followed what was said in previous email to have a 
>>look at SOAPEnvelope to see
>>how to parse it.
>>So, i copied the code from SOAPEnvelope and tried to 
>>customize for my own needs, using 
>>a the xml pullparser.
>>
>>but for some reason i keep on getting following exception 
>>
>>Creating new AgencyImpl..
>>Exception in thread "main" 
>>org.xmlpull.v1.XmlPullParserException: expected: END_
>>TAG {http://www.w3.org/2001/12/soap-envelope}Body 
>>(position:START_TAG <agency> @
>>7:13)
>>        at org.kxml2.io.KXmlParser.exception(KXmlParser.java:228)
>>        at org.kxml2.io.KXmlParser.require(KXmlParser.java:1261)
>>        at com.tgmm.commons.SoapParser.parse(Unknown Source)
>>        at com.tgmm.commons.SoapParser.main(Unknown Source)
>>
>>i cannot figure out what's wrong. the XML seems ok, since i 
>>can see it in IE 5.5
>>
>>i can attach the code that i am using.... if anyone can help 
>>me in figuring out where is the problem.
>>
>>
>>with best regards
>>	marco
>>
>> << File: SoapParser.java >> 
>>
> 
> 
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