Thanks for the info Howard. Actually my requirement is like this: my
application generates reporting files in doc/pdf format. I need to set a
path where to store the generated reporting files. It maybe different
when the app is deployed on different servers. So I think the execution
mode way maybe not suitable for me.
于 2012/4/24 23:46, Howard Lewis Ship 写道:
I prefer to narrow things down to one system property: the Tapestry
execution mode:
http://tapestry.apache.org/configuration.html#Configuration-SettingExecutionModes
This determines which Tapestry IoC modules(s) will be loaded.
The modules make contributions to the @ApplicationDefaults and
@FactoryDefaults SymbolProvider services.
I typically have a "dev" and "production" and maybe "test" execution mode.
In this way, most of the configuration is inside code, and because the
execution mode is determined by a JVM system property, its easy to
control which configuration is used when the application starts up,
whether inside your IDE or on a continuous integration server.
On Tue, Apr 24, 2012 at 8:34 AM, Rural Hunter<ruralhun...@gmail.com> wrote:
ok, thanks a lot. I don't care if it has to be in my own properties file or
not. I just want it easy to edit/chage. Now I work this way with your hint:
1. define the parameter as context-param in web.xml, eg. myParam
2. inject it in my page class:
@Inject
@Value("${myParam}")
String myParam;
Then I can use myParam in the page/service class very conveniently. pls let
me know if there is any problem with this way. thanks.
于 2012/4/24 23:07, Lance Java 写道:
There is no silver bullet solution for this and it's a matter of taste.
Tapestry has a number of built in SymbolProviders. You can specify a
combination of system properties, init-params to the tapestry filter,
factory defaults and application defaults
http://tapestry.apache.org/symbols.html
If you would like to configure your symbols in a properties file, there is
a HowTo page here:
http://wiki.apache.org/tapestry/Tapestry5HowToReadSymbolsFromPropertiesFile
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