[mysqld] character_set_server=utf8 [mysql] default_character_set=utf8 [client] port=3306 default_character_set=utf8
JPA自动创建表用UTF8（吐槽：配置方言居然是 database-platform，而不是熟悉的dialect，FUCK，折腾死我了！）
继承并覆写方法MySQL5InnoDBDialect为MySQL5DialectUTF8 ：
public class MySQL5DialectUTF8 extends MySQL5InnoDBDialect {
@Override
public String getTableTypeString() {
return " ENGINE=InnoDB DEFAULT CHARSET=utf8";
}
}
然后配置：
spring.jpa.database-platform=xxx.MySQL5DialectUTF8 spring.datasource.url=jdbc:mysql://localhost:3306/db_petstore?useUnicode=yes&characterEncoding=UTF-8