将 Kotlin 数组转换为 Java 可变参数
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Convert Kotlin Array to Java varargs
提问by robie2011
How can I convert my Kotlin Array
to a varargs Java String[]
?
如何将我的 Kotlin 转换Array
为可变参数 Java String[]
?
val angularRoutings =
arrayOf<String>("/language", "/home")
// this doesn't work
web.ignoring().antMatchers(angularRoutings)
采纳答案by s1m0nw1
You should use the "spread operator", which looks like this: *
The spread operator needs to be prefixed to the array argument:
您应该使用“扩展运算符”,如下所示:*
扩展运算符需要以数组参数为前缀:
antMatchers(*angularRoutings)
For further information, see the documentation:
有关更多信息,请参阅文档:
When we call a
vararg
-function, we can pass arguments one-by-one, e.g.asList(1, 2, 3)
, or, if we already have an array and want to pass its contents to the function, we use the spread operator (prefix the array with*
):
当我们调用一个
vararg
- 函数时,我们可以一个一个地传递参数,例如asList(1, 2, 3)
, 或者,如果我们已经有一个数组并且想要将其内容传递给函数,我们可以使用扩展运算符(在数组前加上*
):