反射案例

public static void addValueToList(List list, String[] str, Object pointer)throws Exception
{
        Field field = null;
        String type = null;
        for (int i = 0; i < str.length; i++)
        {
            field = pointer.getClass().getDeclaredField(str[i]);
            type = field.getType().getName();
            String methodName = null;
            StringBuffer buffer = new StringBuffer();
            String substr1 = str[i].substring(0, 1);
            String substr2 = str[i].substring(1, str[i].length());
            
            buffer.append(substr1.toUpperCase(Locale.getDefault()));
            buffer.append(substr2);
            
            methodName = new String(buffer);
            Method method = null;
            
            try
            {
                method = pointer.getClass().getDeclaredMethod(methodName, null);
            }
            catch (NoSuchMethodException e)
            {
                e.toString();
            }
            if (type.compareToIgnoreCase("short") == 0)
            {
                short value = ((Short)method.invoke(pointer, null)).shortValue();
                if (-1!= value)
                {
                    list.add(value);
                    continue;
                }
            }
            else if (type.compareToIgnoreCase("int") == 0)
            {
                int value = ((Integer)method.invoke(pointer, null)).intValue();
                if (-1!= value)
                {
                    list.add(value);
                    continue;
                }
            }
            else if (type.indexOf("java.lang.String") >= 0)
            {
                String value = (String)method.invoke(pointer, null);
                if (null != value)
                {
                    list.add(value);
                }
            }           
        }
}