创建新对象的ByteBuddy方法实现

import net.bytebuddy.ByteBuddy;
import net.bytebuddy.dynamic.loading.ClassLoadingStrategy;
import net.bytebuddy.implementation.FixedValue;

public class ByteBuddyExample {
    public static void main(String[] args) throws IllegalAccessException, InstantiationException {
        Class<?> dynamicType = new ByteBuddy()
                .subclass(Object.class)
                .method(named("toString"))
                .intercept(FixedValue.value("Hello ByteBuddy!"))
                .make()
                .load(ByteBuddyExample.class.getClassLoader(), ClassLoadingStrategy.Default.WRAPPER)
                .getLoaded();

        Object instance = dynamicType.newInstance();
        System.out.println(instance.toString());
    }
}