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Posted to users@tomcat.apache.org by Ganesh Bms <gb...@gmail.com> on 2015/05/13 12:03:16 UTC
WebSocket: Special character escaping
Hi,
I have written a web socket server using web socket API(JSR-356) and which
runs on tomcat version 7.0.56.
My test client sends some text which has some special characters over web
socket connection to my server. the problem is that server is not getting
the client's text as it is. the special character got modified to "?".
The text that my client sends is "Test701á". Server received is "SIP701?".
At server, I have just attached Text message handler to web socket session.
This works fine with tomcat version 7.0.55.
Please let me know if i am missing something here.
Thank you,
ganesh
Re: WebSocket: Special character escaping
Posted by Ganesh Bms <gb...@gmail.com>.
Thanks Mark. Sample web socket chat helped to identify the problem. In
fact, problem was there in one of third-party lib I used and also, in log4j
config. The log4j was configured with non-utf encoding scheme. That's why
raw web socket messages were getting printed wrongly in log file. I solved
the issue by putting UTF-8 escaping to special characters.
Regards,
Ganesh
On Wed, May 13, 2015 at 4:27 PM, Mark Thomas <ma...@apache.org> wrote:
> On 13/05/2015 11:44, Ganesh Bms wrote:
> > Sorry .. correction to line:
> >
> > The text that my client sends is "Test701á". Server received is
> "SIP701?".
> >
> > Actual: The text that my client sends is "Test701á". Server received is
> > "Test701?".
>
> Lots of places this could go wrong. You need to make sure that
> everything is using UTF-8 everywhere.
>
> I'd check these first:
> - The client is sending the text encoding using UTF-8
> - Your server application is displaying the received String using UTF-8
>
> You can see if Tomcat handles this correctly by using the WebSocket chat
> example and sending special characters.
>
> Mark
>
> >
> > On Wed, May 13, 2015 at 3:33 PM, Ganesh Bms <gb...@gmail.com> wrote:
> >
> >> Hi,
> >>
> >> I have written a web socket server using web socket API(JSR-356) and
> which
> >> runs on tomcat version 7.0.56.
> >> My test client sends some text which has some special characters over
> web
> >> socket connection to my server. the problem is that server is not
> getting
> >> the client's text as it is. the special character got modified to "?".
> >>
> >> The text that my client sends is "Test701á". Server received is
> "SIP701?".
> >> At server, I have just attached Text message handler to web socket
> session.
> >>
> >> This works fine with tomcat version 7.0.55.
> >>
> >> Please let me know if i am missing something here.
> >>
> >> Thank you,
> >> ganesh
> >>
> >
>
>
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Re: WebSocket: Special character escaping
Posted by Mark Thomas <ma...@apache.org>.
On 13/05/2015 11:44, Ganesh Bms wrote:
> Sorry .. correction to line:
>
> The text that my client sends is "Test701á". Server received is "SIP701?".
>
> Actual: The text that my client sends is "Test701á". Server received is
> "Test701?".
Lots of places this could go wrong. You need to make sure that
everything is using UTF-8 everywhere.
I'd check these first:
- The client is sending the text encoding using UTF-8
- Your server application is displaying the received String using UTF-8
You can see if Tomcat handles this correctly by using the WebSocket chat
example and sending special characters.
Mark
>
> On Wed, May 13, 2015 at 3:33 PM, Ganesh Bms <gb...@gmail.com> wrote:
>
>> Hi,
>>
>> I have written a web socket server using web socket API(JSR-356) and which
>> runs on tomcat version 7.0.56.
>> My test client sends some text which has some special characters over web
>> socket connection to my server. the problem is that server is not getting
>> the client's text as it is. the special character got modified to "?".
>>
>> The text that my client sends is "Test701á". Server received is "SIP701?".
>> At server, I have just attached Text message handler to web socket session.
>>
>> This works fine with tomcat version 7.0.55.
>>
>> Please let me know if i am missing something here.
>>
>> Thank you,
>> ganesh
>>
>
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Re: WebSocket: Special character escaping
Posted by Ganesh Bms <gb...@gmail.com>.
Sorry .. correction to line:
The text that my client sends is "Test701á". Server received is "SIP701?".
Actual: The text that my client sends is "Test701á". Server received is
"Test701?".
On Wed, May 13, 2015 at 3:33 PM, Ganesh Bms <gb...@gmail.com> wrote:
> Hi,
>
> I have written a web socket server using web socket API(JSR-356) and which
> runs on tomcat version 7.0.56.
> My test client sends some text which has some special characters over web
> socket connection to my server. the problem is that server is not getting
> the client's text as it is. the special character got modified to "?".
>
> The text that my client sends is "Test701á". Server received is "SIP701?".
> At server, I have just attached Text message handler to web socket session.
>
> This works fine with tomcat version 7.0.55.
>
> Please let me know if i am missing something here.
>
> Thank you,
> ganesh
>