package cn.zy.study;
/*** 提供get和set方法* 并有一个无参的构造方法* @author zy**/
public class Person {private String name;private int age;private String gender;public Person() {}public String getName() {return name;}public void setName(String name) {this.name = name;}@Overridepublic String toString() {return "Person [name=" + name + ", age=" + age + ", gender=" + gender+ "]";}public int getAge() {return age;}public void setAge(int age) {this.age = age;}public String getGender() {return gender;}public void setGender(String gender) {this.gender = gender;}}

package cn.test;import java.lang.reflect.InvocationTargetException;
import java.util.HashMap;
import java.util.Map;import org.apache.commons.beanutils.BeanUtils;
import org.junit.Test;import cn.zy.study.Person;public class Demo3 {@Testpublic void fun1() throws ClassNotFoundException, InstantiationException, IllegalAccessException, InvocationTargetException, NoSuchMethodException{//用Class类的forName方法来获取对应的class对象String className = "cn.zy.study.Person";Class clazz = Class.forName(className);//使用clazz对应类的默认构造器创造实例Object bean = clazz.newInstance();/**使用beanutils工具设置bean类的属性值,* 所有的属相值都可以设置成String类型，将会自动转换* 没有设置属性的值将为null*/BeanUtils.setProperty(bean, "name", "Scott");BeanUtils.setProperty(bean, "age", "17");System.out.println(bean);//得到bean类的属性值,注意属值都将变成String类型String name = BeanUtils.getProperty(bean, "name");String age = BeanUtils.getProperty(bean, "age");}@Test/*** 将map直接封装到一个bean中*/public void fun2() throws InstantiationException, IllegalAccessException, InvocationTargetException{Map<String,String> map = new HashMap();map.put("name","Scott");map.put("age","15");//利用类的class属性来获取Class对象，并创建Person bean = Person.class.newInstance();//将map数据填充到Javabean中BeanUtils.populate(bean, map);System.out.println(bean);}}