Implementation of nginx multiple locations forwarding any request or accessing static resource files

server {
 #Listening port listen 80;
 #The domain name to be listened to server_name localhost;

 #Listen to the URL with suffix
 location ^~\.txt {
  #Put the file in the /html folder root /;
    }
 #Listen to all URLs. If there is no special requirement, just use this location. #Use wildcards to enter location only if no other locations are matched / {
  #Removed the restriction that only URLs are forwarded, because directly accessing the domain name will not pass if and thus the request cannot be forwarded.
  
  proxy_pass http://localhost:8080;
    }
  }

server {
 #Listening port listen 80;
 #The domain name to be listened to server_name localhost;

 #Listen to the URL with suffix
 location ^~\.txt {
  #Put the file in the /html folder root /;
    }
 #Monitor all URLs. If there is no special requirement, just use this location. location / {
  #Requests without a suffix are forwarded in order to cooperate with the previous location to access the resource file instead of forwarding all requests. If there is no special requirement, do not judge and directly proxy_pass to the request if (!-e $request_filename){
  proxy_pass http://localhost:8080;
  break;
  }
    }
  }