Spring BeanUtils的属性拷贝，注意点，从Apache切换过来存在的问题

Spring BeanUtils的属性拷贝，注意点，从Apache切换过来存在的问题

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1、Apache 的源码

    /**
     * <p>Copy property values from the origin bean to the destination bean
     * for all cases where the property names are the same.</p>
     *
     * <p>For more details see <code>BeanUtilsBean</code>.</p>
     *
     * @param dest Destination bean whose properties are modified
     * @param orig Origin bean whose properties are retrieved
     * 
     * dest 是属性被拷贝上去的目标对象
     * orig 是需要取值的资源对象
     * 就是说，是把orig 的属性值拷贝到dest 上
     * 
     * @throws IllegalAccessException if the caller does not have
     *  access to t