org.apache.commons.beanutils.PropertyUtils 作用一例

package test;

import org.apache.commons.beanutils.PropertyUtils;

public class Test {

private int x;

private int y;

public int getX() {   //get ,set 方法不要忘记

return x;

}

public void setX(int x) {

this.x = x;

}

public int getY() {

return y;

}

public void setY(int y) {

this.y = y;

}

Test(){

}

Test(int x,int y){

this.x=x;

this.y=y;

}

public static void main(String[] args) {

Test t=new Test(3,8);

try {

Object k= PropertyUtils.getProperty(t, "x");//理解其反射原理

System.out.println(k.toString());//打印 值：3

} catch (Exception e) {

e.printStackTrace();

}

}

}