I have a relative who lives in China, and want's to study in America, and no school in my area knows what a DS-2019 form is, and most do not know how to get one. I just need the form, so this person can go to a public school where I live?

Public schools are not permitted to issue I-20 or what you called DS-2019, except on exchange program which is limited to 1 year only. If your relative wants to go to school in US, as a foreigner, he/she must go to private school.

Read about requirements of student visa here: Student Visas

And list of schools under SEVIS program here: ICE Student and Exchange Visitor Information System (SEVIS): Schools and Programs Already F&M Certified?

I want to know 'bout j1visa 'n ds-2019.. how to get these two

The DS-2019 (formerly IAP-66) is issued by a J-1 program administrator, not an F-1 DSO.