How can I get my parents to accept my boyfriend?

here it goes... im 18 years old and I have a boyfriend thats 22 thats a 4 year diference.. I dont know what to do.. my parents HATE him with a passion.. we love each other and we make each other happy... I tell my moether that im an adult already but she doesnt seem to get it..my parents make my life inpposible they dont let me go out and see him or let me do anything with him im sooo confused because this is afecting our relationship... we have been together for 1 year and my parents are not getting the point.. my boyfriend told me to mov in with him but I dont want to make my parents more made so I told him no.. I have told my parents several times to meet the man but they refuse to.. what do I do?? should I listen to my parents or should I listen to my boyfriend.. I have been verry happy with him for this year but I dont know if my parents are going to keeep making my life HELL.. please help me and tell me what to do.... PLEASE

Why do they 'Hate him with a passion' ? - (their side)

well why do they hate him 1st off? and a yr thats kinda long so if you two really love eachother and get along great then try the living together. and if it doesnt work out and you want to go back home im sure your parents would let u.

ok so like I realize that im younger then you but im in the same poshion except my boyfriends only a year older... what I did was just flat out tell my parents that its my life ill date who I want. theni told them that I want them appart of my life so I told them that I would make dinnier and that I invited my boyfriend over. I told them all they had to do was be nice and get to know him. I told them that his in my life and staying that they needed to get usto the fack cus its not changing...I hope my advice helps and all the best with you and your boyfriend