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How can I convert this String variable to a List ?
def ids = "[10, 1, 9]"
I tried with: as List and toList();
4 Answers
def l = Eval.me(ids)
Takes the string of groovy code (in this case "[10,1,9]") and evaluates it as groovy. This will give you a list of 3 ints.
def l = ids.split(',').collect{it as int}
Use the built-in JsonSlurper!
Using Eval is dangerous and the string manipulation solution will fail once the data type is changed so it is not adaptable. So it's best to use JsonSlurper.
import groovy.json.JsonSlurper
//List of ints
def ids = "[10, 1, 9]"
def idList = new JsonSlurper().parseText(ids)
assert 10 == idList[0]
//List of strings
def ids = '["10", "1", "9"]'
idList = new JsonSlurper().parseText(ids)
assert '10' == idList[0]
This does work for me. And Eval.me will not work in Jenkins groovy script. I have tried.
assert "[a,b,c]".tokenize(',[]') == [a,b,c]
