DynaProperty、DynaBean及DynaClass类的使用

使用DynaBean类，可以不必创建大量的VO，FORM等传递值的对象。它是通过这个三个类（DynaProperty, DynaBean, DynaClass）来实现此工作的.

如下实例：

package demo04;

import java.util.HashMap;
import java.util.Map;

import org.apache.commons.beanutils.BasicDynaClass;
import org.apache.commons.beanutils.DynaBean;
import org.apache.commons.beanutils.DynaProperty;
import org.apache.commons.beanutils.PropertyUtils;
/**
 * BasicDynaBean, DynaProperty, BasicDynaClass的使用
 */
public class DynaBeanTest {
	public static void main(String[] args) throws Exception {
		//定义动态属性
		DynaProperty[] props = new DynaProperty[]{
				new DynaProperty("username", String.class),
				new DynaProperty("address", java.util.Map.class)
		};
		//动态类
		BasicDynaClass dynaClass = new BasicDynaClass("person", null, props);
		//动态bean
		DynaBean person = dynaClass.newInstance();
		person.set("username", "jhlishero");//设置值
		Map<String, String> maps = new HashMap<String, String>();
		maps.put("key1", "value1");
		maps.put("key2", "value2");
		person.set("address",maps);//设置值
		person.set("address", "key3", "value3");//第二种方法设置map中的值
		
		System.err.println(person.get("username"));//获取字符串值
		System.err.println(person.get("address", "key1"));//获取map中值
		System.err.println(person.get("address", "key2"));
		System.err.println(person.get("address", "key3"));
		//使用PropertyUtils工具获取属性值
		System.out.println(PropertyUtils.getSimpleProperty(person, "username"));
	}
}