NGINX 不会将调用从 React 应用程序路由到后端应用程序 [英] NGINX not routing calls from react app to backend app
问题描述
我有一个 AWS Ubuntu 服务器,它托管一个在 127.0.0.1:4100 上运行的 React 前端,并使用端口 127.0.0.1:1323 对 Go 应用程序进行 api 调用.我在 /etc/nginx/sites-available/default
配置文件中为这两个端口安装了 Nginx 和设置代理传递,但我只让前端被 Nginx 调用.使用 chrome inspect 检查为什么 Go 应用程序没有提供 react 应用程序的某些功能,我看到了这个错误
I have an AWS Ubuntu server that hosts a react front end running at 127.0.0.1:4100 and makes api calls to a Go app using port 127.0.0.1:1323. I installed Nginx and setup proxy pass for these two ports in /etc/nginx/sites-available/default
config file but I only get the front end getting called by Nginx. Using chrome inspect to check why the Go app is not serving some of the functionalities from the react app, I see this error
client.js:772 GET http://127.0.0.1:1323/api/net::ERR_CONNECTION_REFUSEDERROR 错误:请求已被终止 可能的原因:网络离线、Access-Control-Allow-Origin 不允许 Origin、页面正在卸载等.
client.js:772 GET http://127.0.0.1:1323/api/ net::ERR_CONNECTION_REFUSED ERROR Error: Request has been terminated Possible causes: the network is offline, Origin is not allowed by Access-Control-Allow-Origin, the page is being unloaded, etc.
我做错了什么?下面是我的默认配置文件
What am I doing wrong? Below is my default config file
server {
listen 80 default_server;
listen [::]:80 default_server;
server_name _;
location / {
proxy_pass http://127.0.0.1:4100;
}
location /api {
proxy_pass http://127.0.0.1:1323/;
}
}
推荐答案
您的服务器正在侦听端口 80:
Your server is listening to port 80:
listen 80 default_server;
listen [::]:80 default_server;
因此,您应该向该端口发出请求:
So, you should make your request to that port:
GET http://127.0.0.1/api/ => http://127.0.0.1:1323/
GET http://127.0.0.1:80/api/ => http://127.0.0.1:1323/
GET http://127.0.0.1/ => http://127.0.0.1:4100/
GET http://127.0.0.1:80/ => http://127.0.0.1:4100/
然后 nginx 应该正确代理您的请求.
Then nginx should correctly proxy your requests.
为了更清楚地了解 nginx 配置.
To be more clear about nginx config.
server {
listen 80 default_server; // The port nginx is listening to ipv4
listen [::]:80 default_server; // The port nginx is listening to ipv6
server_name _;
location / { // When you call this location...
proxy_pass http://127.0.0.1:4100; // You'll be redirected to this location
}
location /api { // When you call this location...
proxy_pass http://127.0.0.1:1323/; // You'll be redirected to this location
}
}
您的配置没问题 根据 nginx 文档一>.
你说你的客户端试图访问 http://127.0.0.1:1323/api/
但它应该请求 http://127.0.0.1/api/
code>(没有端口)被重定向到 http://127.0.0.1:1323/
.
You said your client is trying to reach http://127.0.0.1:1323/api/
but It should be requesting http://127.0.0.1/api/
(whitout the port) to be redirected to http://127.0.0.1:1323/
.
这是另一个例子:
server {
listen 80;
server_name localhost anywebsite.com;
location ~* ^/MyApp {
proxy_pass http://localhost:5130;
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection keep-alive;
proxy_set_header Host $host;
proxy_cache_bypass $http_upgrade;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_send_timeout 2m;
proxy_read_timeout 2m;
}
}
在这种情况下,每次我的 url 以 /MyApp
结尾时,例如:http://anywebsite.com/api/MyApp
我被代理到 http://localhost:5130
.但是如果我尝试访问 http://localhost:5130
或 http://anywebsite.com:5130/api/MyApp
我将无法访问,因为 nginx 是仅侦听端口 80.如果你想访问另一个端口,你需要像这样指定:
In this case, everytime my url ends with /MyApp
ex.: http://anywebsite.com/api/MyApp
I'm being proxyed to http://localhost:5130
. But if I try to access http://localhost:5130
or http://anywebsite.com:5130/api/MyApp
I won't be able because nginx is listening to port 80 only. If you want to access another port you need to specify like this:
server {
listen 80;
listen 5130;
[...]
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