Externalize images in grails app from tomcat directory

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class DocController{
     static externalPath='/usr/share/myproject/docs/'
    
    def img{
        def f=new File(externalPath+params?.id+'.png')
        response.contentType ='image/png'
        response.outputStream << f?.bytes
        response.outputStream.flush()
     }


}

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if you have : /usr/share/myproject/docs/344.png , 

it will be accessed from

http://myhost/doc/img/344 

Sub List /Sub Array / Sub Collection with groovy

def  big=["azeae","azeazeaz","dfsdfsdf","kjkjk","ghf"];

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def sub1=big[2..big.size()-1]

 

>["dfsdfsdf","kjkjk","ghf"];

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def sub2=big[1..big.size()-2]

 

>["azeazeaz","dfsdfsdf","kjkjk"];