jdbc - mysql连接url后的useUnicode=true&characterEncoding=UTF-8究竟是什么意思？

Question

UTF-8指的是啥？

Answer 1

Unicode is a character encoding method, which ensures that characters from all over the world can be covered. However, it looks like this u81bf, so you have to program it into bytes. This is what computers know as utf-8. This is what it does