通过反射获取字段就可以了：
public class Test {
public static void main(String[] args) {
Class class1 = TestInterface.class;
Field[] fields = class1.getDeclaredFields();
for(Field field:fields){
try {
System.out.println(field.getName()+":"+field.get(class1));
} catch (IllegalArgumentException | IllegalAccessException e) {
e.printStackTrace();
}
}
}
}