动态代理有很多的分类；

1、JDK原生的动态代理；

2、Spring实现的基于cglib里面的工厂实例化对象；

3、基于原生的cglib造出来的对象

4、基于字节码的反编译：assistant

具体的实现类参考：

public final class ClassUtils {private static final char PACKAGE_SEPARATOR = '.';private static final List<String> PROXY_CLASS_NAMES = Arrays.asList("net.sf.cglib.proxy.Factory", 
"org.springframework.cglib.proxy.Factory","javassist.util.proxy.ProxyObject", "org.apache.ibatis.javassist.util.proxy.ProxyObject");private ClassUtils() {}public static boolean isProxy(Class<?> clazz) {if (clazz != null) {Class[] var1 = clazz.getInterfaces();int var2 = var1.length;for(int var3 = 0; var3 < var2; ++var3) {Class<?> cls = var1[var3];if (PROXY_CLASS_NAMES.contains(cls.getName())) {return true;}}}return false;}public static Class<?> getUserClass(Class<?> clazz) {return isProxy(clazz) ? clazz.getSuperclass() : clazz;}public static Class<?> getUserClass(Object object) {Assert.notNull(object, "Error: Instance must not be null", new Object[0]);return getUserClass(object.getClass());}public static <T> T newInstance(Class<T> clazz) {try {Constructor<T> constructor = clazz.getDeclaredConstructor();constructor.setAccessible(true);return constructor.newInstance();} catch (IllegalAccessException | InvocationTargetException | NoSuchMethodException | InstantiationException var2) {throw ExceptionUtils.mpe("实例化对象时出现错误,请尝试给 %s 添加无参的构造方法", var2, new Object[]{clazz.getName()});}}public static Class<?> toClassConfident(String name) {try {return Class.forName(name);} catch (ClassNotFoundException var2) {throw ExceptionUtils.mpe("找不到指定的class！请仅在明确确定会有 class 的时候，调用该方法", var2, new Object[0]);}}public static String getPackageName(Class<?> clazz) {Assert.notNull(clazz, "Class must not be null", new Object[0]);return getPackageName(clazz.getName());}public static String getPackageName(String fqClassName) {Assert.notNull(fqClassName, "Class name must not be null", new Object[0]);int lastDotIndex = fqClassName.lastIndexOf(46);return lastDotIndex != -1 ? fqClassName.substring(0, lastDotIndex) : "";}
}