nginx反向代理流程详解（本地通过nginx配置反向代理的全过程记录）

#user nobody;
worker_processes 1;

#error_log logs/error.log;
#error_log logs/error.log notice;
#error_log logs/error.log info;

#pid logs/nginx.pid;


events {
 worker_connections 1024;
}


http {
 include mime.types;
 default_type application/octet-stream;

 #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 logs/access.log main;

 sendfile on;
 #tcp_nopush on;

 #keepalive_timeout 0;
 keepalive_timeout 65;

 #gzip on;
 server_names_hash_bucket_size 128;
 server {
 listen 80;
 server_name localhost;
 location / {
  root html;
  index index.html index.htm;
 }
 error_page 500 502 503 504 /50x.html;
 location = /50x.html {
  root html;
 }
 }

 server {
 listen 80;
 server_name test-local.juejin.com;
 # 这里是你要代理的测试环境域名加上-local
 # 比如你的项目测试环境为a.test.com,你本地此处可以设置为a-local.test.com,当然你可以随便设置

 location /{
  add_header 'Access-Control-Allow-Origin' '*';
  add_header 'Access-Control-Allow-Credentials' 'true';
  add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
  add_header 'Access-Control-Allow-Headers' 'DNT,web-token,app-token,Authorization,Accept,Origin,Keep-Alive,User-Agent,X-Mx-ReqToken,X-Data-Type,X-Auth-Token,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range';
  add_header 'Access-Control-Expose-Headers' 'Content-Length,Content-Range';
  # 此处8091是我们本地运行项目的端口号，设置成跟你本地起的服务端口号一样就行
  proxy_pass http://127.0.0.1:8091/;
 }
 }
}

#跨域请求server
server{
	listen 9000;
	server_name 127.0.0.1; # 或者设置为本机ip
	root /app/crossDomain/;
	index index.html;
	
	location /douban/ { #添加访问目录为/api的代理配置
		rewrite ^/api/(.*)$ /$1 break;
		proxy_pass http://a.test.com;
 }
}