参考：
http://www.duduwolf.com/wiki/2007/296.html
http://www.chinaitpower.com/A/2005-07-03/150232.html1)普通的Bean处理 不管是什么Set参数为3个 ( 对象本身, 属性名或属性内位置, 值 )
//list的add有点特别
Get参数为2个
( 对象本身, 属性名或属性内位置
) Employee em = new Employee(); //String name; String[] ss; Map map; List list;
BeanUtils.setProperty(em,"name","liukaiyi"); //String set
BeanUtils.setProperty(em,"ss",new String[]{"1","2","3"}); //String[] set
BeanUtils.setProperty(em,"ss[2]","google"); //String[2] set
BeanUtils.setProperty(em,"map",new HashMap()); //Map set
BeanUtils.setProperty(em,"map(key)","value"); //Map.put(Key,Value)
BeanUtils.setProperty(em,"list",new ArrayList( Arrays.asList( new Object[20] ) )); //List有点特别
BeanUtils.setProperty(em,"list[0]","list"); //不可以直接添加？？？
BeanUtils.setProperty(em,"avg","23"); //int set
System.out.println( BeanUtils.getSimpleProperty(em,"name") );
System.out.println( BeanUtils.getProperty(em,"ss[2]") );
System.out.println( BeanUtils.getProperty(em,"map(key)") );
System.out.println( BeanUtils.getProperty(em,"list[0].class") ); // 取的是 ==list.get(0).getClass()
System.out.println( BeanUtils.getProperty(em,"avg") );
2)动态属性
//定义动态属性集
DynaProperty[] props = new DynaProperty[]{
new DynaProperty("address", java.util.Map.class),
new DynaProperty("subordinate", mypackage.Employee[].class),
new DynaProperty("firstName", String.class),
new DynaProperty("lastName", String.class)
};
//创建动态类来设定动态属性值
BasicDynaClass dynaClass = new BasicDynaClass("employee", null, props);
DynaBean employee = dynaClass.newInstance();
employee.set("address", new HashMap());
employee.set("subordinate", new mypackage.Employee[0]);
employee.set("firstName", "Fred");
employee.set("lastName", "Flintstone");
//也可以同上一样 提供统一 的Get Set 还是 字符操作 ^o^ 哈哈
BeanUtils.setProperty(bean,"address",new HashMap());
BeanUtils.setProperty(bean,"address(ads1)","江西");
BeanUtils.setProperty(bean,"name","liu");
BeanUtils.setProperty(bean,"subordinate",new String[3]);
BeanUtils.setProperty(bean,"subordinate[1]","heha");
System.out.println( BeanUtils.getProperty(bean,"address(ads1)") );
System.out.println( BeanUtils.getProperty(bean,"name") );
System.out.println( BeanUtils.getProperty(bean,"subordinate[1]") );
3）JDBC 扩展
Connection conn = 
;
Statement stmt = conn.createStatement();
ResultSet rs = stmt.executeQuery
("select accountid, name from customers");
Iterator rows = (new ResultSetDynaClass(rs)).iterator(); //ResultSetDynaClass(java.sql.ResultSet resultSet) while (rows.hasNext()) {
//利用动态bean进行输出
DynaBean row = (DynaBean) rows.next(); //连实体Bean都可以不要了
BeanUtils.copyProperties( MyBean ,row ); // bean<--dynaBean 就这样去得到值 ^o^
MyBean.getAccountid(); ....
}
rs.close();
stmt.close(); 4)HttpServletRequest 扩展
HttpServletRequest request = ;
MyBean bean = ;
HashMap map = new HashMap();
Enumeration names = request.getParameterNames();
while (names.hasMoreElements()) {
String name = (String) names.nextElement();
map.put(name, request.getParameterValues(name));
}
BeanUtils.populate(bean, map);//bean<--map struts好象是就用这个 Form