谢谢你的答案@ r3wt。但是，我猜上面的配置文件是不合适的我不想保持原样(但是对于我来说开发似乎没问题，因为部署我宁愿为每个站点使用单独的配置文件)。

所以，别名部分和我的问题应该正确定义try_files因为我想要捕获链接以localhost / szpetra开头所以我添加它并取消注释别名部分因为现在我清楚地了解root和别名whis之间的区别是什么是：

This will result in files being searched for in /foo/bar/bar as the full URI is appended.

location /bar {

root /foo/bar;

}

This will result in files being searched for in /foo/bar as only the URI part after /bar is appended.

location /bar {

alias /foo/bar;

}

资料来源：https://forum.nginx.org/read.php?2,129656,130107

现在修改后的配置文件如下所示：

server {

listen 80;

server_name localhost;

access_log /var/log/nginx/localhost-access_log main;

error_log /var/log/nginx/localhost-error_log info;

root /var/www/localhost/htdocs/;

index index.php index.html index.htm; # I used index definition here so I think I shouldn't define it under a 'location' field.

location ~ \.php$ {

try_files $uri =404;

include /etc/nginx/fastcgi.conf;

fastcgi_pass unix:run/php-fpm.socket;

}

location /phpmyadmin {

alias /var/www/localhost/htdocs/phpmyadmin;

access_log /var/log/nginx/phpmyadmin-access_log main;

error_log /var/log/nginx/phpmyadmin-error_log info;

}

location /samplewordpress {

alias /var/www/localhost/htdocs/samplewordpress;

access_log /var/log/nginx/samplewordpress-access_log main;

error_log /var/log/nginx/samplewordpress-error_log info;

}

location /szpetra {

# alias /var/www/localhost/htdocs/szpetra; #uncommenting alias helped me solve the problem

access_log /var/log/nginx/szpetra-access_log main;

error_log /var/log/nginx/szpetra-error_log info;

# index index.php index.html index.htm; # this doesn't need cause I defined the indexes above in the server{} section but I'm not sure that about this

try_files $uri $uri/ /szpetra/index.php?$args; # Adding this line helped me solve the problem

}}