1 import java.lang.reflect.Field;
2
3 /**
4 * Created with IDEA
5 * author:foreign
6 * Date:2019/9/30
7 * Time:10:10
8 */
9 public class ReflectionFk {
10 public static void main(String[] args) throws IllegalAccessException {
11 Class clazz = PersonFk.class;
12 //1 获取所有public的字段
13 Field[] fields = clazz.getFields();
14 for (Field field : fields) {
15 System.out.println("public的字段：" + field);
16 }
17 try {
18 //1.1 根据指定的名字获取public的字段
19 Field variable = clazz.getField("desc");
20 System.out.println("指定name的public字段：" + variable);
21 } catch (NoSuchFieldException e) {
22 e.printStackTrace();
23 }
24 Field[] fields1 = clazz.getFields();
25 for (Field field : fields1) {
26 //2 获取变量的名称
27 String name = field.getName();
28 System.out.println("变量的名称：" + name);
29 //3 获取变量的类型
30 Class<?> type = field.getType();
31 System.out.println("变量的类型：" + type);
32 //4 获取变量的值
33 PersonFk personFk = new PersonFk();
34 Object o = field.get(personFk);
35 System.out.println("获取变量的值：" + o);
36 //4.1 设置变量的值
37 field.set(personFk,o);
38 }
39 }
40 }
