[英]How to use Paths(java.nio.file.Paths) in nashorn javascript
我有一条路径(例如: "C:/Users/aaa/bbb/ccc/"
),我的目标是获取父路径(即"C:/Users/aaa/bbb/"
)
为此,我尝试使用java.nio.file.Paths
,它在 java 中工作,我尝试将其转换为 nashorn js:
import java.nio.file.Paths;
public class ReadPropertiesFile {
public static void main(String[] args) {
String myPath = "C:/Users/aaa/bbb/ccc/";
System.out.println(Paths.get(myPath).getParent());
}
}
纳松脚本:
var testPath = "C:/Users/aaa/bbb/ccc/";
var Paths = java.import("java.nio.file.Paths");
try{
var test = Paths.get(testPath).getParent();
console.log("++++++MyFINALPATH+++++"+test);
}catch (e){ console.log("++++++MyFINALPATH+++++"+e);
}
预期输出: C:/Users/aaa/bbb/
错误类型错误:Paths.get(...).getParent 不是函数
您需要改用它:
var Paths = Java.type("java.nio.file.Paths");
https://docs.oracle.com/javase/9/scripting/using-java-scripts.htm#JSJSG117
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