利用BeanUtils与PropertyUtils进行javabean的内省操作

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package com.franky.bean;import org.apache.commons.beanutils.BeanUtils;import org.apache.commons.beanutils.PropertyUtils;/** * @描述 BeanUtils与PropertyUtils的使用需要JAR包commons-beanutils.jar与commons-logging-1.1.jar * @作者 franky * @日期 2014-12-31 下午12:04:24 */public class JavaBeanTestWithBeanUtils {/** * @param args * @throws Exception  */public static void main(String[] args) throws Exception {Point point = new Point(5, 5);//beanutils操作bean的属性都会转换为字符串//利用beanutils得到bean对象的属性值System.out.println(BeanUtils.getProperty(point, "x"));//BeanUtils返回的是String类型System.out.println(BeanUtils.getProperty(point, "x").getClass().getName());//利用beanutils设置bean对象的属性值BeanUtils.setProperty(point, "x", 10);System.out.println(BeanUtils.getProperty(point, "x"));//可以对非基本类型的属性进行级联操作,获取date属性中的time//将非基本类型的属性对象同样当作bean对象操作System.out.println(BeanUtils.getProperty(point, "date.time"));//设置date的time属性值，BeanUtils只支持8种基本数据类型的转换，其他类型需要进行ConvertUtils.register()；进行类型转换BeanUtils.setProperty(point, "date.time", 1234567);System.out.println(BeanUtils.getProperty(point, "date.time"));//利用PropertyUtils进行属性值的获取，返回的值类型为属性的本类型//而不是BeanUtils返回的都是String类型System.out.println(PropertyUtils.getProperty(point, "x"));//本类型为IntegerSystem.out.println(PropertyUtils.getProperty(point, "x").getClass().getName());}}

Point类：

package com.franky.bean;import java.util.Date;public class Point {private int x;private int y;private Date date = new Date();/** * @return the date */public Date getDate() {return date;}/** * @param date the date to set */public void setDate(Date date) {this.date = date;}/** * @return the x */public int getX() {return x;}/** * @param x the x to set */public void setX(int x) {this.x = x;}/** * @return the y */public int getY() {return y;}/** * @param y the y to set */public void setY(int y) {this.y = y;}public Point(int x, int y) {super();this.x = x;this.y = y;}}

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