RE: tomcat detecting http header

2005-09-20 Thread Jason Bell 
Hi, 

When developing web app code I tend to enumerate on the headers coming in.

Have a look at:
public java.util.Enumeration getHeaderNames();

So:

// get the header names

Enumeration ee = request.getHeaderNames();

// then iterate through them

for(;ee.hasMoreElements();){
  String header = (String)ee.nextElement();
  System.out.println(header +  =  + request.getHeader(header));
}

It's just good to get an overall picture of what is being  send in the 
headers.  As for why the value is null, I don't know 100% but this link may or 
may not help.

http://forum.java.sun.com/thread.jspa?threadID=507098messageID=2404807


 getHeader(REMOTE_ADDR);
 
 and getting null.

I hope this helps in your quest.

Kind regards
Jason

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Jason Bell
Lead Architect, SpikeSource Europe
e: [EMAIL PROTECTED]
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Re: tomcat detecting http header

2005-09-20 Thread Jon Wingfield 

Of course, you could just call request.getRemoteAddr();
Tomcat is a Servlet Specification container. You don't get headers with 
CGI naming conventions.


Check out the api documentation:
http://java.sun.com/j2ee/1.4/docs/api/index.html

It's the packages starting with javax.servlet that will be of most 
interest. Specifically, the docs for javax.servlet.ServletRequest give 
some info on methods that map to CGI variables.


HTH,

Jon

Jason Bell wrote:
Hi, 


When developing web app code I tend to enumerate on the headers coming in.

Have a look at:
public java.util.Enumeration getHeaderNames();

So:

// get the header names

Enumeration ee = request.getHeaderNames();

// then iterate through them

for(;ee.hasMoreElements();){
  String header = (String)ee.nextElement();
  System.out.println(header +  =  + request.getHeader(header));
}

It's just good to get an overall picture of what is being  send in the 
headers.  As for why the value is null, I don't know 100% but this link may or 
may not help.


http://forum.java.sun.com/thread.jspa?threadID=507098messageID=2404807




getHeader(REMOTE_ADDR);

and getting null.



I hope this helps in your quest.

Kind regards
Jason

--
Jason Bell
Lead Architect, SpikeSource Europe
e: [EMAIL PROTECTED]
w: http://www.spikesource.com
b: http://jasonbell.blog-city.com
m: +44 (0)787 529 2693

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To unsubscribe, e-mail: [EMAIL PROTECTED]
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RE: tomcat detecting http header

2005-09-20 Thread Murugan Pal 
You can also add this routine within a code block at higher trace levels.  
This way you can turn on this routine for debugging or logging purposes and 
don't have to incur additional overheads during runtime.

Murugan  

 Hi, 
 
 When developing web app code I tend to enumerate on the headers coming in.
 
 Have a look at:
 public java.util.Enumeration getHeaderNames();
 
 So:
 
 // get the header names
 
 Enumeration ee = request.getHeaderNames();
 
 // then iterate through them
 
 for(;ee.hasMoreElements();){
   String header = (String)ee.nextElement();
   System.out.println(header +  =  + request.getHeader(header));
 }
 
 It's just good to get an overall picture of what is being  send in the 
 headers.  As for why the value is null, I don't know 100% but this link may 
or 
 may not help.
 
 http://forum.java.sun.com/thread.jspa?threadID=507098messageID=2404807
 
 
 
 I hope this helps in your quest.
 
 Kind regards
 Jason
 
 --
 Jason Bell
 Lead Architect, SpikeSource Europe
 e: [EMAIL PROTECTED]
 w: http://www.spikesource.com
 b: http://jasonbell.blog-city.com
 m: +44 (0)787 529 2693
 
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 To unsubscribe, e-mail: [EMAIL PROTECTED]
 For additional commands, e-mail: [EMAIL PROTECTED]

Murugan Pal
Founder  CTO 
Spikesource, Inc.
1400 Seaport Blvd., South Bldg. #350,
Redwood City, CA 94063
Phone: 650 241 4006
www.spikesource.com

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