如何创建具有动态变量数量的java类

import java.lang.reflect.Field;

public class DynamicClass {
    public static void main(String[] args) {
        // 创建具有动态变量数量的类
        Class<?> dynamicClass = createDynamicClass("DynamicClass", "var1", "var2", "var3");

        // 打印类的字段信息
        printFields(dynamicClass);
    }

    public static Class<?> createDynamicClass(String className, String... variableNames) {
        try {
            // 使用反射创建类
            Class<?> dynamicClass = Class.forName(className);
            ClassLoader classLoader = dynamicClass.getClassLoader();
            ClassPool classPool = ClassPool.getDefault();
            CtClass ctClass = classPool.makeClass(className);

            // 添加字段
            for (String variableName : variableNames) {
                CtField field = new CtField(CtClass.intType, variableName, ctClass);
                ctClass.addField(field);
            }

            // 转换为字节码并加载类
            byte[] byteCode = ctClass.toBytecode();
            dynamicClass = classLoader.defineClass(className, byteCode, 0, byteCode.length);

            return dynamicClass;
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
    }

    public static void printFields(Class<?> clazz) {
        Field[] fields = clazz.getDeclaredFields();
        for (Field field : fields) {
            System.out.println("Field Name: " + field.getName());
        }
    }
}