在Groovy中將Ascii轉換爲Int函數

Question

我試圖將值「1」傳遞給Grails標記。然而，結果是一個49的整數值 - 「1」的ascii值。我如何將其轉換爲Groovy中的適當值？

Answer 1

實際上，String上有一個「toInteger（）」函數。

Answer 2

要添加到傑克BeNimble的評論，如果你正在使用1.2（發行版的情況例外），你也有空安全轉換爲int（即params.int（「值」），它會做

從Release Notes。

Convenient, null safe converters in params and tag attributes 

New convenience methods have been added to the params object and tag attrs objects that allow the easy, exception safe and null safe conversion of parameters to common types: 

def total = params.int('total') 

There are methods for all the common base types such as int@, @long@, @boolean and so on. There is a special converter called list that always returns a list for cases when dealing with one or many parameters of the same name: 

def names = params.list('names')