多个域名的Nginx重定向问题

server {
    listen 80;
    server_name domain1.com;
    root /var/www/domain1;

    # 其他配置...
}

server {
    listen 80;
    server_name domain2.com;
    root /var/www/domain2;

    # 其他配置...
}

server {
    listen 80;
    server_name domain1.com;
    root /var/www/domain1;

    rewrite ^/(.*)$ http://www.domain1.com/$1 permanent;
}

server {
    listen 80;
    server_name domain2.com;
    root /var/www/domain2;

    rewrite ^/(.*)$ http://www.domain2.com/$1 permanent;
}

server {
    listen 80 default_server;
    server_name _;
    return 301 http://www.$host$request_uri;
}