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sending a response

 
Lucas Smith
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I am a little bit confused with sending a response to a client.

When does it take place?

I thought that after:



But please consider an example (I attach only an important part of JSP file):

Output in my webbrowser:
Some text after flush

So it can not be send after out.flush().

Another:

Nothing is printed.

Another:

"Some text" is printed.

Please, tell me when a response is sent to an user? And please give me some details about buffering (I think that page is double buffered - through JSPWriter and through PrintWriter of ServletResponse).

Thanks for your time!

SCJP6, SCWCD5, OCE:EJBD6.
BLOG: http://leakfromjavaheap.blogspot.com

 
Ankit Garg
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Lucas output is sent to the client when you call the flush method. But that doesn't mean that no output can be sent after that. If you don't flush the output stream, then its automatically flushed when the output buffer is full (of course if autoFlush attribute of page directive is set to true)...

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Niteen Patil
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What happens when the autoFlush="true" and the buffer is not full.Isn't the output sent to the client?
 
Hasnain Javed Khan
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Hi Lucas,

This thread might help

Flush()

Kind Regards.
Hasnain.
 
Lucas Smith
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Ankit Garg wrote:Lucas output is sent to the client when you call the flush method. But that doesn't mean that no output can be sent after that. If you don't flush the output stream, then its automatically flushed when the output buffer is full (of course if autoFlush attribute of page directive is set to true)...



And at the end of JSP page evaluation - out.close() is invoked?

SCJP6, SCWCD5, OCE:EJBD6.
BLOG: http://leakfromjavaheap.blogspot.com

 
Ankit Garg
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Lucas Smith wrote:And at the end of JSP page evaluation - out.close() is invoked?


Yes the output stream to the client is closed, which will automatically flush the output stream...

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Lucas Smith
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Is there something like double buffering?

SCJP6, SCWCD5, OCE:EJBD6.
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Niteen Patil
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Hi Lucas,

This thread might help

Flush()

Kind Regards.
Hasnain.

Went through the thread.It means that the response is committed after the service method completes, if the buffer is not full. If the buffer is full and flush=true, then the response is committed when the buffer is full.
Am i right.
Thanks.
 
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