如何在groovy的每个循环中使用"continue"

Question

我是groovy的新手(在java上工作),尝试使用Spock框架编写一些测试用例.我需要使用"每个循环"将以下Java代码段转换为groovy代码段

Java代码段:

List<String> myList = Arrays.asList("Hello", "World!", "How", "Are", "You");
for( String myObj : myList){
    if(myObj==null) {
        continue;   // need to convert this part in groovy using each loop
    }
    System.out.println("My Object is "+ myObj);
}

Groovy Snippet:

def myObj = ["Hello", "World!", "How", "Are", "You"]
myList.each{ myObj->
    if(myObj==null){
        //here I need to continue
    }
    println("My Object is " + myObj)
}

Answer 1

要么使用return,因为闭包基本上是一个用每个元素作为参数调用的方法

def myObj = ["Hello", "World!", "How", "Are", "You"]
myList.each{ myObj->
    if(myObj==null){
        return
    }
    println("My Object is " + myObj)
}

或者将模式切换为

def myObj = ["Hello", "World!", "How", "Are", "You"]
myList.each{ myObj->
    if(myObj!=null){
        println("My Object is " + myObj)
    }
}

或者使用findAllbefore来过滤掉null对象

def myList = ["Hello", "World!", "How", "Are", null, "You"]
myList.findAll { it != null }.each{ myObj->
    println("My Object is " + myObj)
}

Answer 2

您可以使用标准for循环continue:

for( String myObj in myList ){
  if( something ) continue
  doTheRest()
}

或使用return中each的关闭:

myList.each{ myObj->
  if( something ) return
  doTheRest()
}