首先修改hosts文件，让浏览器在看到a.com或是www.a.com的网址时知道上哪里去找：
# Copyright (c) 1993-2009 Microsoft Corp.
#
# This is a sample HOSTS file used by Microsoft TCP/IP for Windows.
#
# This file contains the mappings of IP addresses to host names. Each
# entry should be kept on an individual line. The IP address should
# be placed in the first column followed by the corresponding host name.
# The IP address and the host name should be separated by at least one
# space.
#
# Additionally, comments (such as these) may be inserted on individual
# lines or following the machine name denoted by a '#' symbol.
#
# For example:
#
# 102.54.94.97 rhino.acme.com # source server
# 38.25.63.10 x.acme.com # x client host
# localhost name resolution is handled within DNS itself.
# 127.0.0.1 localhost
# ::1 localhost
127.0.0.1 a.com
127.0.0.1 www.a.com
打开nginx.conf，写入下面两段：
server {
listen 7777;
server_name a.com;
location / {
root html/7777;
index index.html index.htm;
}
}
server {
listen 9999;
server_name a.com;
location / {
root html/9999;
index index.html index.htm;
}
}
然后，在C: ginx-1.16.1html创建目录7777,9999，把index.html 拷贝进去，然后修改得能区分开来：
<!DOCTYPE html> <html> <head> <title>Welcome to 7777</title> <style> body { width: 35em; margin: 0 auto; font-family: Tahoma, Verdana, Arial, sans-serif; } </style> </head> <body> <h1>Welcome to 7777</h1> </html>
<!DOCTYPE html> <html> <head> <title>Welcome to 9999</title> <style> body { width: 35em; margin: 0 auto; font-family: Tahoma, Verdana, Arial, sans-serif; } </style> </head> <body> <h1>Welcome to 9999</h1> </html>
之后，平滑重启nginx
C: ginx-1.16.1>nginx.exe -s reload
之后在浏览器器里就能看效果了：
--END-- 2019年12月14日08:22:02