用Nginx反向代理Node.js的方法

  npm install pm2 -g    ln -s /home/download/node-v8.11.1-linux-x64/lib/node_modules/pm2/bin/pm2 /usr/local/bin/pm2  

  "scripts": {    "test": "echo "Error: no test specified" && exit 1",    "pm2": "/home/download/node-v8.11.1-linux-x64/lib/node_modules/pm2/bin/pm2 start /web/mazey.cn/server/app.js"  }

  "scripts": {    "test": "echo "Error: no test specified" && exit 1",    "pm2": "pm2 start app.js"  }  

  npm run pm2

  pm2 save    pm2 startup centos  

  PM2 detected systemv but you precised centos   Please verify that your choice is indeed your init system   If you arent sure, just run : pm2 startup  

  vim /etc/nginx/conf.d/*.conf    upstream nodejs {    server 127.0.0.1:3000;    keepalive 64;  }  server {    listen 80;    server_name domain.cn;    root /web/mazey.cn;    index index.html index.htm;    # 网站切到/server下时走nodejs    location /server {      proxy_set_header  X-Real-IP $remote_addr;      proxy_set_header  X-Forwarded-For $proxy_add_x_forwarded_for;      proxy_set_header  Host $http_host;      proxy_set_header  X-Nginx-Proxy true;      proxy_set_header  Connection "";      proxy_pass http://nodejs;    }    location ~ .*.(gif|jpg|jpeg|png|bmp|swf)$ {      expires 30d;    }    location ~ .*.(js|css)?$ {      expires 1h;    }  }    

  const express = require('express')  const app = express()  let hi = 'hi'    app.get('/server', (req, res, next) => {   hi = `Hello Mazey!n`   next()  }, (req, res) => {   res.send(`   ${hi}   ${req.method}n   ${req.originalUrl}n   ${req.query.id}n   `)  })    const server = app.listen(3000, function () {   let host = server.address().address   let port = server.address().port     console.log('Example app listening at http://%s:%s', host, port)  })