How to disable a servlet?

[Ron Cecchini <ro...@comcast.net>]

Hi there.


I am trying to run 2 Spring Boot / Camel applications at the same time, and the 2nd app complains about port 8080 already being in use.


However, the 2nd app doesn't even need to expose any endpoints; it's just reading messages off a RabbitMQ bus that the first app is producing.  So I tried getting the 2nd app to *not* start up a 'servlet' -- and that's where I've run into trouble.  I'm not explicitly doing anything with endpoints in this 2nd app or configuring a servlet.  It just has one simple route to read from a bus and transform the message.


I tried getting rid of the servlet dependency in the POM (it was copy and pasted there), thinking that maybe the servlet is auto-started if the dependency is there -- but that didn't do it.


After much digging, I eventually discovered that I can set 'server.port' to something other than 8080 -- and that worked, in the sense that I can now start up the 2 apps and write/read to/from the bus.


But for my own education, I would *still * like to know how I can disable that 2nd servlet, esp. since it's not needed.


Thank you very much.


Ron

Re: How to disable a servlet?

[Ron Cecchini <ro...@comcast.net>]

Thanks, Claus.  Worked perfectly.

(sent off list because I didn't want to add more noise to the list.)

> On August 20, 2018 at 4:54 PM Claus Ibsen <cl...@gmail.com> wrote:
> 
> 
> Hi
> 
> If its a spring boot application then you can remove the -web-starter
> dependency if you dont need servlet/http.
> 
> Then you need to set Camel's main controller to true in the
> application.properties to keep the app/JVM running.
> camel.springboot.main-run-controller = true
> 
> Otherwise if you must have SB -web-starter then you can do as you
> found out, reconfigure it to use a different port number than 8080.
> 
> 
> On Mon, Aug 20, 2018 at 9:30 PM, Ron Cecchini <ro...@comcast.net> wrote:
> > Hi there.
> >
> >
> > I am trying to run 2 Spring Boot / Camel applications at the same time, and the 2nd app complains about port 8080 already being in use.
> >
> >
> > However, the 2nd app doesn't even need to expose any endpoints; it's just reading messages off a RabbitMQ bus that the first app is producing.  So I tried getting the 2nd app to *not* start up a 'servlet' -- and that's where I've run into trouble.  I'm not explicitly doing anything with endpoints in this 2nd app or configuring a servlet.  It just has one simple route to read from a bus and transform the message.
> >
> >
> > I tried getting rid of the servlet dependency in the POM (it was copy and pasted there), thinking that maybe the servlet is auto-started if the dependency is there -- but that didn't do it.
> >
> >
> > After much digging, I eventually discovered that I can set 'server.port' to something other than 8080 -- and that worked, in the sense that I can now start up the 2 apps and write/read to/from the bus.
> >
> >
> > But for my own education, I would *still * like to know how I can disable that 2nd servlet, esp. since it's not needed.
> >
> >
> > Thank you very much.
> >
> >
> > Ron
> 
> 
> 
> -- 
> Claus Ibsen
> -----------------
> http://davsclaus.com @davsclaus
> Camel in Action 2: https://www.manning.com/ibsen2

Re: How to disable a servlet?

[Claus Ibsen <cl...@gmail.com>]

Hi

If its a spring boot application then you can remove the -web-starter
dependency if you dont need servlet/http.

Then you need to set Camel's main controller to true in the
application.properties to keep the app/JVM running.
camel.springboot.main-run-controller = true

Otherwise if you must have SB -web-starter then you can do as you
found out, reconfigure it to use a different port number than 8080.


On Mon, Aug 20, 2018 at 9:30 PM, Ron Cecchini <ro...@comcast.net> wrote:
> Hi there.
>
>
> I am trying to run 2 Spring Boot / Camel applications at the same time, and the 2nd app complains about port 8080 already being in use.
>
>
> However, the 2nd app doesn't even need to expose any endpoints; it's just reading messages off a RabbitMQ bus that the first app is producing.  So I tried getting the 2nd app to *not* start up a 'servlet' -- and that's where I've run into trouble.  I'm not explicitly doing anything with endpoints in this 2nd app or configuring a servlet.  It just has one simple route to read from a bus and transform the message.
>
>
> I tried getting rid of the servlet dependency in the POM (it was copy and pasted there), thinking that maybe the servlet is auto-started if the dependency is there -- but that didn't do it.
>
>
> After much digging, I eventually discovered that I can set 'server.port' to something other than 8080 -- and that worked, in the sense that I can now start up the 2 apps and write/read to/from the bus.
>
>
> But for my own education, I would *still * like to know how I can disable that 2nd servlet, esp. since it's not needed.
>
>
> Thank you very much.
>
>
> Ron



-- 
Claus Ibsen
-----------------
http://davsclaus.com @davsclaus
Camel in Action 2: https://www.manning.com/ibsen2