java反射机制获得类的私有属性

1.首先写一基本的Java类User
package com.che.test;

public class User {
    private  String name;
}
2.写一应用类App
package com.che.test;

import java.lang.reflect.Array;
import java.lang.reflect.Field;
import java.lang.reflect.Method;

public class App {
   
    public static void main(String[] args) {
        String objName="com.che.test.User";
        try{
            Class cs=Class.forName(objName);
            Object obj=cs.newInstance();
            Field name=cs.getDeclaredField("name");
            name.setAccessible(true);
            System.out.println(name.get(obj));
            name.set(obj, "che");
            System.out.println(name.get(obj));
            name.setAccessible(false);
       }catch(Exception e){
            e.printStackTrace();
        }
    }

}