把一个对象赋值到另一个新对象，copy工具类

前提条件：两个类字段名字一致，只是名字不一样！
public static void copySimpleObject(Object target, Object source) {
   Map map;
   Iterator iter;
   if ((target != null) && (source != null)) {
      List targetMethodList = ObjectUtils.getSetter(target.getClass());
      List sourceMethodList = ObjectUtils.getGetter(source.getClass());
      map = new HashMap();
      for (Iterator iter2 = sourceMethodList.iterator(); iter2.hasNext();) {
         Method method = (Method) iter2.next();
         map.put(method.getName(), method);
      }
      for (iter = targetMethodList.iterator(); iter.hasNext();) {
         Method method = (Method) iter.next();
         String fieldName = method.getName().substring(3);
         try {
            Method sourceMethod = (Method) map.get("get" + fieldName);
            if (sourceMethod == null) {
               sourceMethod = (Method) map.get("is" + fieldName);
            }
            if (sourceMethod == null) {
               continue;
            }
            Object value = sourceMethod.invoke(source, new Object[0]);
            if (value != null) {
               method.invoke(target, new Object[] { value });
            }
         } catch (Exception e) {
            System.out.println("fieldName:"+fieldName);
            e.printStackTrace();
         }
      }
   }