In a standalone application the Actuator HTTP port defaults to the same as the main HTTP
port. To make the application listen on a different port set the external property
management.port. To listen on a completely different network address (e.g. if you have
an internal network for management and an external one for user applications) you can
management.address to a valid IP address that the server is able to bind to.
For more detail look at the
source code and
Section 41.3, “Customizing the management server port”
in the ‘Production-ready features’ section.
Spring Boot installs a ‘whitelabel’ error page that you will see in browser client if
you encounter a server error (machine clients consuming JSON and other media types should
see a sensible response with the right error code). To switch it off you can set
error.whitelabel.enabled=false, but normally in addition or alternatively to that you
will want to add your own error page replacing the whitelabel one. Exactly how you do this
depends on the templating technology that you are using. For example, if you are using
Thymeleaf you would add an
error.html template and if you are using FreeMarker you would
error.ftl template. In general what you need is a
View that resolves with a name
error, and/or a
@Controller that handles the
/error path. Unless you replaced some
of the default configuration you should find a
BeanNameViewResolver in your
ApplicationContext so a
@Bean with id
error would be a simple way of doing that.
ErrorMvcAutoConfiguration for more options.
See also the section on Error Handling for details of how to register handlers in the servlet container.