Question

XML-XSLT Transformation via browser

Asked by: zamirjalil

Hello..


I have go thru some study on how can I implement xml-xslt to do text translation for my project.
But I still stuck understanding some example given in the tutorial. I'm not sure am I in the right track to use xml-xslt to translate some text label in jsp pages to different languages based on user selection. If not please suggest.

FYI the language code is stored in locale session. if I have this xml, how can I use xslt and display the output in jsp?

label.xml
-----------
<?xml version="1.0"?>
<locale>
    <userid>
         <en_us>User Name</en_us>
         <de>Benutzername</de>
    </userid>
    <password>
         <en_us>Password</en_us>
         <de>Passwort</de>
    </password>
    <logonbutton>
         <en_us>Logon</en_us>
         <de>Anmelden</de>
    <logonbutton>
------------------------------------------------------------

Thanks in advance

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Asked On
2004-01-28 at 01:25:42ID20865304
Tags

jsp

Topic

Extensible Markup Language (XML)

Participating Experts
1
Points
250
Comments
19

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Answers

 

by: dualsoulPosted on 2004-01-28 at 06:10:29ID: 10218098

easy :) just do XSLT transform as in standalone java app. See: (sample.jsp)

..................................
<html><head></head>
<body>
<%
// Step 1: Get XML
                  String xml = "..."; //get some xml here to String (just for instance)
                  
            //Step 2: prepare source and result streams
                  StreamSource source=new StreamSource(new StringReader(xml));
                        //set stylesheet here
                  StreamSource stylesheet=new StreamSource(this.getClass().getResourceAsStream("myStylesheet.xsl));
                  StringWriter outHtml=new StringWriter();
                  StreamResult result=new StreamResult(outHtml);

            //Step 3: do transformation
                  TransformerFactory transFactory=TransformerFactory.newInstance();
                  Transformer transformer=transFactory.newTransformer(stylesheet);
                  transformer.transform(source,result);

                               //Step 4: print out the result
                                 out.println(outHtml.toString());
%>
</body>
</html>
..................................

Hope it helps.

 

by: dualsoulPosted on 2004-01-28 at 06:11:02ID: 10218105

oh...yeah...don't forget to import all classes you are using :)

 

by: zamirjalilPosted on 2004-01-28 at 17:42:25ID: 10223895

thank dualsoul for your quick respond. By the way, how to built xslt file base on the xml?

 

by: zamirjalilPosted on 2004-01-28 at 18:20:08ID: 10224064

FYI again, my jsp should be like this. I want the label "User ID" and "Password" is change accoudingly to user language selection based on xml file.

logonpage.jsp
--------------------
<html>
<head>
<title>Untitled Document</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
</head>

<body>
<table width="37%" border="0" cellspacing="2" cellpadding="2">
  <tr>
    <td width="34%">User ID</td>
    <td width="2%">:</td>
    <td width="64%"><input type="text" name="textfield"></td>
  </tr>
  <tr>
    <td>Password</td>
    <td>:</td>
    <td><input type="text" name="textfield2"></td>
  </tr>
</table>
<p>
  <input type="submit" name="Submit" value="Logon">
</p>
</body>
</html>

 

by: zamirjalilPosted on 2004-01-28 at 19:03:32ID: 10224256

anyway, what classes should I use?

 

by: zamirjalilPosted on 2004-01-28 at 19:35:36ID: 10224452

dualsoul,

Is this correct fro sample.jsp??

sample.jsp
----------------------------------
<%@page import ="java.lang.*" %>
<%@page import ="java.util.*" %>
<%@page import ="java.io.*" %>

<html><head></head>
<body>
<%
          // Step 1: Get XML
               String xml = "label.xml"; //get some xml here to String (just for instance)

          //Step 2: prepare source and result streams
               StreamSource source=new StreamSource(new StringReader(xml));
          //set stylesheet here
               StreamSource stylesheet=new StreamSource(this.getClass().getResourceAsStream("label.xsl"));
               StringWriter outHtml=new StringWriter();
               StreamResult result=new StreamResult(outHtml);

          //Step 3: do transformation
               TransformerFactory transFactory=TransformerFactory.newInstance();
               Transformer transformer=transFactory.newTransformer(stylesheet);
               transformer.transform(source,result);

          //Step 4: print out the result
               out.println(outHtml.toString());
%>
</body>
</html>
----------------------------------------------

 

by: zamirjalilPosted on 2004-01-28 at 19:54:12ID: 10224558

ok dualsoul, after some modification, I solve the import class porblem but then it produce this error:


exception

org.apache.jasper.JasperException: javax.xml.transform.TransformerConfigurationException: javax.xml.transform.TransformerException: java.net.MalformedURLException
      at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:254)
      at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295)
      at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
      at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
      at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
      at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)



What should I do?

 

by: dualsoulPosted on 2004-01-29 at 00:23:57ID: 10225515

>What should I do?
it seems you trying to point your XSLT file - in wrong location:

.................................................
StreamSource stylesheet=new StreamSource(this.getClass().getResourceAsStream("label.xsl"));
..............................................
check the path.

and  String xml = "label.xml";  
this is not XML filename, it's XML it self. If you want to use file, this should be:
................................................
// Step 1: Get XML
               String xml = "label.xml"; //filename here

          //Step 2: prepare source and result streams
               StreamSource source=new StreamSource(this.getClass().getResourceAsStream(xml));
................................................

And again don't forget to set up correct path for XML file.

 

by: dualsoulPosted on 2004-01-29 at 00:29:00ID: 10225527

> I want the label "User ID" and "Password" is change accoudingly to user language selection >based on xml file.

you should write XSLT which transform your XML to Form, and insert it in your .jsp as i show you. Do you need help with it?

By the way if you only need localization of your webapp, you can easily do it without XML, check the JSTL (Java Standart Tags Library) - it has support for localization.

 

by: dualsoulPosted on 2004-01-29 at 00:30:13ID: 10225533

> I want the label "User ID" and "Password" is change accoudingly to user language selection >based on xml file.

you should write XSLT which transform your XML to Form, and insert it in your .jsp as i show you. Do you need help with it?

By the way if you only need localization of your webapp, you can easily do it without XML, check the JSTL (Java Standart Tags Library) - it has support for localization.

 

by: zamirjalilPosted on 2004-01-29 at 01:43:49ID: 10225668

Yes i your help help to develop xslt based on html that i posted previously.
And also I still not understand he concept of localization.

 

by: zamirjalilPosted on 2004-01-29 at 01:45:31ID: 10225673

by the way , is this xslt id correct ?

label.xsl
-----------------------------------------
<xsl:stylesheet version = '1.0' xmlns:xsl='http://www.w3.org/1999/XSL/Transform'>
<xsl:template match="/">
     <h1>
          <xsl:value-of select="//author"/>
     </h1>
     <h2>
          <xsl:value-of select="//title"/>
     </h2>
</xsl:template>


</xsl:stylesheet>
---------------------------------------

 

by: dualsoulPosted on 2004-01-29 at 02:28:58ID: 10225824

>And also I still not understand the concept of localization.
Localization - is the process, when your app can operate with different languages, according to clients locale. That's what you want to do.

heck the tutrorial on localization at java.sun.com
About XSLT, which values you want to use? <en-us> or <de> ?

 

by: zamirjalilPosted on 2004-01-29 at 17:33:13ID: 10231714

It can be any values based on user selection, but here lets try with <en_us> first. Also please explain how can it change to <de>.

 

by: dualsoulPosted on 2004-01-30 at 01:16:02ID: 10233728

ok, i'll show it a bit later - a'm busy at work now.

But i recomend you to read this:  http://java.sun.com/docs/books/tutorial/i18n/index.html

before you go with your xml solution.

Java has native support fot localization, and all work you try to do, can be much easier. Really read the trail first.

 

by: zamirjalilPosted on 2004-02-05 at 00:31:41ID: 10278726

ok..

 

by: dualsoulPosted on 2004-02-05 at 02:48:22ID: 10279371

what ok? :) did you read it?

 

by: zamirjalilPosted on 2004-02-05 at 17:26:08ID: 10286299

yes i've read it... I understand the proses... now i'm in a process of combining the class with jsp using javabeans.

Then how about the xslt? I think we still need to use xslt with xml. I understood that with xslt, we can generate any format of document from xml. therefore using xslt is more flexible. I need to know about transformation xml using xslt.

pls consult..

 

by: dualsoulPosted on 2004-02-05 at 21:43:09ID: 10287819

>now i'm in a process of combining the class with jsp using javabeans.
look, don't fuzzy :), first find and read about JSTL (at java.sun.com ) - it will make your work much easier :)

> I need to know about transformation xml using xslt.
hm..so what do you want to know? how to do the task you suggested at first? or something else?
I show you how to to transform within jsp above , not?

>therefore using xslt is more flexible.
i think it will be too complex for localization, and you know XSLT is rather slow on Java platform comparing to JSP, so you should have some more reasons to use it, not only localization.

20120131-EE-VQP-002

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