java, groovy运行时加载jar包

java加载jar，并调用类方法，例如：

URL url1 = new URL("file:/Users/Dorne/.m2/repository/org/apache/commons/commons-lang3/3.9/commons-lang3-3.9.jar");
URLClassLoader myClassLoader1 = new URLClassLoader(new URL[] { url1 }, Thread.currentThread().getContextClassLoader());
Class aClass = myClassLoader1.loadClass("org.apache.commons.lang3.StringUtils");
Object instance = aClass.getDeclaredConstructor().newInstance();
Object strip = aClass.getDeclaredMethod("strip", String.class, String.class).invoke(instance, "[1,2,3,4,5,6,2,3,5,1]", "[]");
System.out.println(strip);

groovy加载jar，并调用类方法，例如：

File file = new File("/Users/Dorne/test.groovy");
GroovyClassLoader classLoader = new GroovyClassLoader();
classLoader.addClasspath("/Users/Dorne/.m2/repository/org/apache/commons/commons-lang3/3.9/commons-lang3-3.9.jar");
classLoader.parseClass(file);
Method run = clazz.getMethod("run", String.class);
Object obj = clazz.getDeclaredConstructor().newInstance();
Object res = run.invoke(obj, "xxx");
System.out.println(res);

test.groovy文件：

//前面已经加载了commons-lang3-3.9.jar 可以直接import
import org.apache.commons.lang3.StringUtils

public class Test{
	public String run(String str) {
		//方法1
		System.out.println(StringUtils.strip("[1,2,3,4,5,6,2,3,5,1]", "[]"));

		//方法2
		Class aClass = Class.forName("org.apache.commons.lang3.StringUtils");
        Object instance = aClass.newInstance();
        Object strip = aClass.getDeclaredMethod("strip", String.class, String.class).invoke(instance, "[1,2,3,4,5,6,2,3,5,1]", "[]");
        System.out.println(strip);

		return "call groovy run " + str;
	}
}