private Object getFieldValue(Object bean)
            throws IllegalAccessException, InvocationTargetException, NoSuchMethodException {
        return PropertyUtils.getProperty(bean, field.getName());
    }
private Object getFieldValue ( Object bean ) throws IllegalAccessException , InvocationTargetException , NoSuchMethodException { return PropertyUtils . getProperty ( bean , field . getName ( ) ) ; }
获取单元对应值

@param bean
@return
@throws IllegalAccessException
@throws InvocationTargetException
@throws NoSuchMethodException