您的脚本可以通过完全限定名称直接访问任何 Java 类,例如
var Vector = Java.type("java.util.Vector");
// or equivalently:
var Vector = java.util.Vector;
// Java.type is better as it throws exception if class is not found
如果您不希望脚本直接引用您的 Java 类,或者您想提供不同的名称,您可以执行以下操作:
import javax.script.*;
public class Main {
public static void main(String[] args) throws ScriptException {
ScriptEngineManager m = new ScriptEngineManager();
ScriptEngine e = m.getEngineByName("nashorn");
// eval "java.util.Vector" to get "type" object and then
// assign that to a global variable.
e.put("Vec", e.eval("java.util.Vector"));
// Script can now use "Vec" as though it is a script constructor
System.out.println(e.eval("v = new Vec(); v.add('hello'); v"));
}
}
希望这可以帮助!