If we go with the traditional characteristics of metaphysical poetry, certainly John Donne fits the bill with The Sun Rising.
First, metaphysical poetry often presents an argument against an unseen element, or an element that cannot answer back. In this case, the speaker is fighting the Sun.
Second, the use of hyperbolic description, simile, and language like Donne uses when describing the intensity of his love, is also traditional of metaphysical poetry.
Third, the intensity of deep thought, philosophy, and sensibility are more evident in this type of poetry than in traditional poetry, and Donne again hits right on with his philosophical comment on how the sun should "be somewhere else when is needed". That is a sign of existentialism, and this is also very typical of metaphysical poetry.
Most importantly: Symbolism is the biggest and most important characteristic. In this case, the Sun symbolized passion, grandeur, energy, love, passion, intensity, gravity. This, as well as in other poems like Death be Not Proud, and The Flea, Donne indeed places strong value in symbols and representation in verse.