问题
I am new to Groovy, and I am thinking about using Groovlets (not GRAILS) to replace some Servlets. If I change a Groovlet's script file, the Groovlet re-compiles and automatically picks up the changes, including scripts referenced from the Groovlet.
This is great for development, but I imagine that groovy must perform lots of file checks to see if any of the scripts have been modified, not just on the main Groovlet, but on all referenced sub-scripts. In a production environment, I imagine this could be lots of IO on every request.
I suppose there is a way to either disable having a Groovlet check to see if scripts have been modified, or perhaps there is a type of "update delay" like FreeMarker's setTemplateUpdateDelay() which only checks for modifications after N elapsed seconds/milliseconds since the last check.
回答1:
This is done in GroovyScriptEngine. It checkes for the last modification date of the source file, and if it's newer than the compiled version, it will recompile.
You can set the minimumRecompilationInterval in CompilerConfiguration. If you set that to a very high value, the checking of the source file won't be done that often.
来源：https://stackoverflow.com/questions/34113384/groovy-how-to-delay-groovlet-modification-recompile-check