SERVLET : transform XSL+XML -OUTPUT = blank page

2001-06-27 Thread Pedro Salazar 

Greetings,

I made a servlet where I try to produce a result to output stream of the 
response object that came from a transformation of XML + XSL. But, I 
just get a blank page in output...!?

I put the same piece of code that exists in doGet() of my servlet in a 
isolated test class [but redirecting the output to a file]. I ran it and 
it works ok... Why my servlet doesn't give nothing to my client??

I put my code below. My servlet runs in the root / of my context.
In my servlet, if I put a println of a string, i will saw the string, 
but just the string...

thanks,
Pedro Salazar

---
SAMPLE ISOLATED
---
...
Source xmlSource = null;
Source xslSource = null;


xmlSource = new javax.xml.transform.stream.StreamSource(login.xml);
xslSource = new javax.xml.transform.stream.StreamSource(login.xsl);
TransformerFactory tFactory = TransformerFactory.newInstance();
Transformer transformer = tFactory.newTransformer(xslSource);
transformer.transform(xmlSource, new StreamResult(new 
java.io.FileOutputStream(login.out)));
...
---
SERVLET doGet()
---
...
Source xmlSource = null;
Source xslSource = null;
PrintWriter out = null;

xmlSource = new StreamSource ( 
getServletContext().getResourceAsStream(/WEB-INF/classes/login.xml));
xslSource = new javax.xml.transform.stream.StreamSource (
getServletContext().getResourceAsStream(/WEB-INF/classes/login.xsl));

Transformer transformer = tFactory.newTransformer(xslSource);
response.setContentType(text/html; charset=UTF-8);
out = response.getWriter();
transformer.transform(xmlSource, new StreamResult(out));
//out.println(OK);
...

Re: SERVLET : transform XSL+XML -OUTPUT = blank page

2001-06-27 Thread Fernando_Salazar 


Doesn't

 getServletContext().getResourceAsStream
(/WEB-INF/classes/login.xml));

have to be

 getServletContext().getResourceAsStream(/login.xml));
?
- fs



|+---
||  Pedro Salazar|
||  pedro-b-salazar@ptin|
||  ovacao.pt   |
||   |
||  06/27/2001 10:34 AM  |
||  Please respond to|
||  tomcat-user  |
||   |
|+---
  
|
  |
|
  |   To: [EMAIL PROTECTED]   
|
  |   cc: (bcc: Fernando Salazar/CAM/Lotus)
|
  |   Subject: SERVLET : transform XSL+XML -OUTPUT = blank page   
|
  
|




Greetings,

I made a servlet where I try to produce a result to output stream of the
response object that came from a transformation of XML + XSL. But, I
just get a blank page in output...!?

I put the same piece of code that exists in doGet() of my servlet in a
isolated test class [but redirecting the output to a file]. I ran it and
it works ok... Why my servlet doesn't give nothing to my client??

I put my code below. My servlet runs in the root / of my context.
In my servlet, if I put a println of a string, i will saw the string,
but just the string...

thanks,
Pedro Salazar

---
SAMPLE ISOLATED
---
...
Source xmlSource = null;
Source xslSource = null;


xmlSource = new javax.xml.transform.stream.StreamSource(login.xml);
xslSource = new javax.xml.transform.stream.StreamSource(login.xsl);
TransformerFactory tFactory = TransformerFactory.newInstance();
Transformer transformer = tFactory.newTransformer(xslSource);
transformer.transform(xmlSource, new StreamResult(new
java.io.FileOutputStream(login.out)));
...
---
SERVLET doGet()
---
...
Source xmlSource = null;
Source xslSource = null;
PrintWriter out = null;

xmlSource = new StreamSource (
getServletContext().getResourceAsStream(/WEB-INF/classes/login.xml));
xslSource = new javax.xml.transform.stream.StreamSource (
getServletContext().getResourceAsStream(/WEB-INF/classes/login.xsl));

Transformer transformer = tFactory.newTransformer(xslSource);
response.setContentType(text/html; charset=UTF-8);
out = response.getWriter();
transformer.transform(xmlSource, new StreamResult(out));
//out.println(OK);
...

Re: SERVLET : transform XSL+XML -OUTPUT = blank page

2001-06-27 Thread Pedro Salazar 

Pedro Salazar wrote:

 Greetings,
 
 I made a servlet where I try to produce a result to output stream of the 
 response object that came from a transformation of XML + XSL. But, I 
 just get a blank page in output...!?
 
 I put the same piece of code that exists in doGet() of my servlet in a 
 isolated test class [but redirecting the output to a file]. I ran it and 
 it works ok... Why my servlet doesn't give nothing to my client??
 
 I put my code below. My servlet runs in the root / of my context.
 In my servlet, if I put a println of a string, i will saw the string, 
 but just the string...
 

I just solve my problem... but before,...

[remember]
-I haven't no exception in servlet, just a blank page;
-my isolated class test worked just fine with the output expected;

[my test]
-I put my classpath in my isolated class test exactly with the same 
classpath as tomcat gets when it starts.

[result]
- An exception occurred: 
javax.xml.transform.TransformerConfigurationException: Namespace not 
supported by SAXParser

[why...]
Why there is no exception in servlet? I just don't know!?!

[What I did...]
-I edited my tomcat.sh script I just after the definition of 
CLASSPATH, I redefined the CLASSPATH with xerces.jar (the one that came 
with xalan) in the beginning and the rest after.

[what happened...]
-Works ok...

[conclusions...]
-Why there is no exception in servlet since in any exception I write in 
log and I write to outputstream of response???
-What is the conflict jar of tomcat with xerces.jar, since when I use 
xerces it works just fine.

thanks,
Pedro Salazar