Question

我正在将我的一个项目拉到Vultr框中，以在线查看其开发模式。该项目在localhost:3000上运行，然后在需要时执行axios GET请求，以从访问localhost:8000的服务器端获取数据。因此，当我进入盒子的IP地址时，我看到了该项目，但是当我进入其中执行请求的页面时，会出现以下错误：

GET http://localhost:8000/table?tableName=Programs&tableOrder=order+by+id+desc net::ERR_CONNECTION_REFUSED

我相信会发生此错误，因为我没有监听该位置的端口。由于我想避免通过在浏览器URL栏中编写xxx.xxx.xxx.xxx:3000来加载应用程序，因此我编辑了文件/etc/nginx/sites-available/default以自动识别3000端口：

##
# You should look at the following URL's in order to grasp a solid understanding
# of Nginx configuration files in order to fully unleash the power of Nginx.
# https://www.nginx.com/resources/wiki/start/
# https://www.nginx.com/resources/wiki/start/topics/tutorials/config_pitfalls/
# https://wiki.debian.org/Nginx/DirectoryStructure
#
# In most cases, administrators will remove this file from sites-enabled/ and
# leave it as reference inside of sites-available where it will continue to be
# updated by the nginx packaging team.
#
# This file will automatically load configuration files provided by other
# applications, such as Drupal or Wordpress. These applications will be made
# available underneath a path with that package name, such as /drupal8.
#
# Please see /usr/share/doc/nginx-doc/examples/ for more detailed examples.
##

# Default server configuration
#
server {
        listen 80 default_server;
        listen [::]:80 default_server;

        # SSL configuration
        #
        # listen 443 ssl default_server;
        # listen [::]:443 ssl default_server;
        #
        # Note: You should disable gzip for SSL traffic.
        # See: https://bugs.debian.org/773332
        #
        # Read up on ssl_ciphers to ensure a secure configuration.
        # See: https://bugs.debian.org/765782
        #
        # Self signed certs generated by the ssl-cert package
        # Don't use them in a production server!
        #
        # include snippets/snakeoil.conf;

        root /var/www/html;

        # Add index.php to the list if you are using PHP
        index index.html index.htm index.nginx-debian.html;

        server_name _;

        location /server {
                proxy_pass http://localhost:8000;
                proxy_http_version 1.1;
                proxy_set_header Upgrade $http_upgrade;
                proxy_set_header Connection 'upgrade';
                proxy_set_header Host $host;
                proxy_cache_bypass $http_upgrade;
        }

        location /phpmyadmin {
                proxy_pass http://localhost:8080;
                proxy_http_version 1.1;
                proxy_set_header Upgrade $http_upgrade;
                proxy_set_header Connection 'upgrade';
                proxy_set_header Host $host;
                proxy_cache_bypass $http_upgrade;
        }

        location / {
                proxy_pass http://localhost:3000;
                proxy_http_version 1.1;
                proxy_set_header Upgrade $http_upgrade;
                proxy_set_header Connection 'upgrade';
                proxy_set_header Host $host;
                proxy_cache_bypass $http_upgrade;
        }

        # pass PHP scripts to FastCGI server
        #
        #location ~ \.php$ {
        #       include snippets/fastcgi-php.conf;
        #
        #       # With php-fpm (or other unix sockets):
        #       fastcgi_pass unix:/var/run/php/php7.0-fpm.sock;
        #       # With php-cgi (or other tcp sockets):
        #       fastcgi_pass 127.0.0.1:9000;
        #}

        # deny access to .htaccess files, if Apache's document root
        # concurs with nginx's one
        #
        #location ~ /\.ht {
        #       deny all;
        #}
}


# Virtual Host configuration for example.com
#
# You can move that to a different file under sites-available/ and symlink that
# to sites-enabled/ to enable it.
#
#server {
#       listen 80;
#       listen [::]:80;
#
#       server_name example.com;
#
#       root /var/www/example.com;
#       index index.html;
#
#       location / {
#               try_files $uri $uri/ =404;
#       }
#}

因此，尽管我可以不用端口进入我的IP地址xxx.xxx.xxx.xxx并查看我的应用程序，但是我无法与该应用程序的服务器部分进行通信。我尝试修改proxy_pass中的location / {以接受localhost:3000和localhost:8000（用逗号分隔），但是nginx测试失败。我去查询该问题的每个网站都建议为其创建一个特定的位置，但这显然不是答案。我很可能会提出错误的问题，因此，为了公开在/位置使用的正确端口，我缺少什么？如果我将代码的这一部分手动更改为我的IP地址，则可以使用，但这真的有必要吗？请让我知道你们是否有答案。

通过不同的代理服务器通行证从服务器应用程序获取数据时出现ERR：CONNECTION_REFUSED

0 个答案: