Java获取泛型的类型

/*
	 * 获取泛型类Class对象，不是泛型类则返回null
	 */
	public static Class<?> getActualTypeArgument(Class<?> clazz) {
		Class<?> entitiClass = null;
		Type genericSuperclass = clazz.getGenericSuperclass();
		if (genericSuperclass instanceof ParameterizedType) {
			Type[] actualTypeArguments = ((ParameterizedType) genericSuperclass)
					.getActualTypeArguments();
			if (actualTypeArguments != null && actualTypeArguments.length > 0) {
				entitiClass = (Class<?>) actualTypeArguments[0];
			}
		}

		return entitiClass;
	}

原文：https://blog.csdn.net/xuhailiang0816/article/details/78403041