方法:打印出这个类的类加载器可判断:类.class.getClassLoader();
,核心类库加载器会返回:null
/** * 判断一个类是JAVA类型还是用户定义类型 * @param clz * @return */ public static boolean isJavaClass(Class<?> clz) { return clz != null && clz.getClassLoader() == null; } public static void main(String... args) { System.out.println(isJavaClass(Integer.class)); // true System.out.println(isJavaClass(BugMeNot.class)); // false }
https://blog.csdn.net/sinat_33852001/article/details/82492949
https://blog.csdn.net/redennc/article/details/22620875
https://blog.csdn.net/oygen/article/details/88330292