Effects of opium wars?

how did the opium wars effect china and what was the most important outcome, and some important facts would be nice too :]

hm...well those crazy europeans and japs were selling them chinese biiches some opium and then they got mad addicted and shiz and then the sellers took advantage of the situation and kept selling until the opium trade was banned but they wouldnt stop so the chinese went BOOM on one of them british ships and then the chinese got their asses owned and had to sign a bunch of things and became everyone's biches and no im not lying im goot with history =D