wellknown

location /.well-know/apple-app-site-association {
    if ($host = 'feifan.dushu365.com') {
        rewrite ^(.*)$ /.well-know/feifan-apple-app-site-association break;
    }
}

上面的方案是不行的，因为 nginx 不支持 if 语句

if ($http_host = "feifan-deeplink.dushu365.com") {
    rewrite ^(.*)/apple-app-site-association$ /$1/apple-app-site-association-feifan last; }