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#65 Problems setting up ServerSocket Web Service
Hello all,
I'm trying to use the Java Wrapper to set up a simple
Web Service using the ServetSocket Java library. I'm
having trouble configuring the Java Wrapper to work
with this.
The basic structure of the code is:
===============
ServerSocket server = new ServerSocket(port);
while(true) {
Socket s = server.accept();
// Perform actions based on input
}
===============
If I set it up as above and follow the tutorial, the
Wrapper restarts the web service every 30 seconds
giving a message like at the bottom of the
Troubleshooting page:
wrapper | 2001/12/01 12:23:44 | Startup failed: Timed
out waiting for signal from JVM.
My indication is that because the server pauses to wait
for a connection in the server.accept() line inside an
infinite loop, it is unable to properly exit. Alternately,
I've set up program without the while loop and run it
once but then I get the opposite error that the program
has terminated unexpectedly.
Whats the correct way to implement a web service like
this using the wrapper?
Thanks!
-Scott
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The message you are getting is because the Java component of
the Wrapper is never being initialized. Could you attach
your wrapper.conf file? I need more info to help you. Make
sure that you have read through the integration section of
the docs.
Cheers,
Leif
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I Attached the wrapper.conf file that I used. It's very
muched based off the example wrapper.conf. The only major
change being the wrapper.java.mainclass.
-Scott
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Scott,
Thanks for the conf file. The problem was as I had
expected. You my friend have not read the documentation.
As I said in the last message. Please read the integration
section of the documention. All I could do here is to
repeat what is already written down there. Most likely
integration method #1 will work for you.
http://wrapper.tanukisoftware.org/doc/english/integrate.html
Also what version of the Wrapper are you using? 3.1.0
should have been kicking out a nice informative message
informing you of this mistake...
Let me know whether or not you get things working or if you
encounter any other problems after looking over the
integration docs.
Cheers,
Leif
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I assume you have things working. Closing this issue off.