Java对类私有变量的暴力反射技术讲解

package com.howlaa.day04;
public class ReflectPoint {
 private int priVar;
 public ReflectPoint(int priVar){
 this.priVar =priVar; 
} 
}

package com.howlaa.day04;
import java.lang.reflect.Field;
public class ReflectTest {
 public static void main(String[] args) throws Exception {
 ReflectPoint pt1 = new ReflectPoint(3);
 Field fieldx = pt1.getClass().getDeclaredField("priVar");
 fieldx.setAccessible(true);
 fieldx.set(pt1, 100);
 System.out.println(fieldx.get(pt1));
 }
}