最近做了一個前後端分離的專案，前端使用angular，後端本來用的spring boot, 後來修改成asp.net core，通過nginx部署在linux上。這邊通過實際案例來分享下nginx的部署和使用

安裝不多說，提供一個靠譜的連結：https://www.cnblogs.com/xxoome/p/5866475.html

直接看nginx的配置

# For more information on configuration, see:
#   * Official English Documentation: http://nginx.org/en/docs/
#   * Official Russian Documentation: http://nginx.org/ru/docs/

user nginx;
worker_processes auto;
error_log /var/log/nginx/error.log;
pid /run/nginx.pid;

# Load dynamic modules. See /usr/share/doc/nginx/README.dynamic.
include /usr/share/nginx/modules/*.conf;

events {
    worker_connections 1024;
}

http {
    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
                      '$status $body_bytes_sent "$http_referer" '
                      '"$http_user_agent" "$http_x_forwarded_for"';

    access_log  /var/log/nginx/access.log  main;

    sendfile            on;
    tcp_nopush          on;
    tcp_nodelay         on;
    keepalive_timeout   65;
    types_hash_max_size 2048;

    include             /etc/nginx/mime.types;
    default_type        application/octet-stream;

    # Load modular configuration files from the /etc/nginx/conf.d directory.
    # See http://nginx.org/en/docs/ngx_core_module.html#include
    # for more information.
    include /etc/nginx/conf.d/*.conf;

    server {
        listen       80 default_server;
        listen       [::]:80 default_server;
        server_name  _;
        root         /usr/share/nginx/html;

        # Load configuration files for the default server block.
        include /etc/nginx/default.d/*.conf;

        location / {
        }
        
        location /egg {
            root /etc/nginx/webroot/;
		index index.html;	
        }
		
        error_page 404 /404.html;
            location = /40x.html {
        }

        error_page 500 502 503 504 /50x.html;
            location = /50x.html {
        }

  	location /egg/api {
	    proxy_pass http://127.0.0.1:8451/api;
	}
    }

# Settings for a TLS enabled server.
#
#    server {
#        listen       443 ssl http2 default_server;
#        listen       [::]:443 ssl http2 default_server;
#        server_name  _;
#        root         /usr/share/nginx/html;
#
#        ssl_certificate "/etc/pki/nginx/server.crt";
#        ssl_certificate_key "/etc/pki/nginx/private/server.key";
#        ssl_session_cache shared:SSL:1m;
#        ssl_session_timeout  10m;
#        ssl_ciphers PROFILE=SYSTEM;
#        ssl_prefer_server_ciphers on;
#
#        # Load configuration files for the default server block.
#        include /etc/nginx/default.d/*.conf;
#
#        location / {
#        }
#
#        error_page 404 /404.html;
#            location = /40x.html {
#        }
#
#        error_page 500 502 503 504 /50x.html;
#            location = /50x.html {
#        }
#    }

}

很多地方不用看，主要看location的地方

location /egg代表了前端的程式碼，它是存放在了/etc/nginx/webroot/egg下

location /egg/api代表了後端的程式碼，它是存放在了/etc/nginx/webroot/service下

詳細的安裝步驟如下

1.    ng build –prod 編譯angular程式碼，得到dist
2.    編譯java後臺程式碼得到jar檔案
3.    將dist裡面得檔案拷貝到/etc/nginx/webroot/egg裡面，將jar放到/etc/nginx/webroot/server資料夾裡面
4.    修改index.html, 將<base
 
 href ="./">改成<base href ="/egg/">
5.    配置好nginx.conf，因為前端，後端，資料庫都是在一起，確保angular中“proxy.conf.json”裡面得後臺IP是127.0.0.1，nginx.conf裡面得java程式IP是127.0.0.1，後臺程式中得mangodb得IP是127.0.0.1。
　　Mongo 配置成自動啟動（目前已配置好）,啟動後臺程式。
6.    修改前後端程式時，殺掉java程序，然後把jar放到webroot得server裡面，把dist放到teamzone裡面
　　後臺終止jar包程式，輸入：ps -ef | grep java，檢視使用java命令的程序，再輸入：kill pid 即可終止執行
　　後臺執行jar包程式，輸入：nohup java 
 
-jar /路徑/程式.jar &
7.    重啟nginx，nginx –s reload

本來proxy_pass中配置的是後臺的ip地址，後來因為載入比較慢，改成了127.0.0.1

當輸入網址http://ip(配置的ip)/egg，nginx會解析該網址，根據egg定位到/etc/nginx/webroot/egg下面的index.html，因為index.html裡面base href是/egg/, 然後跳轉到登入頁面，所以最終的ip呈現為ip/egg/login.

當輸入使用者名稱和密碼，因為後臺已經啟動，傳送http請求給後臺就相當於本地通訊。