The whole country should be unified, who can admire the eyebrows alone? Whose poem is it?

It is better to conquer the whole country, who can admire the eyebrows alone? This is a poem by Li Shangyin.

The whole poem is:

"Willow"

How many leaves can be touched by spring, and how many branches can be shaken by dawn.

To know whether you are lovesick or not, you should dance all the time.

The butterflies are flying and hiding, and the oriole is weakly exposed.

It is better to conquer the whole country, who can admire the eyebrows alone?