nginx.config 多个方案解决跨域问题

#user nobody;

user sam owner;

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 {
    # listen       80;
    listen       9000;
    server_name  localhost;
    # server_name  resouce;
    
    # 以文件目录的方式展开
    autoindex on;
    
    #charset koi8-r;

    #access_log  logs/host.access.log  main;
    
    # location / {
    # #    root   html;
    #     root   D:\Dev\www;
    #     index  index.html index.htm;

    #     # 跨域
    #     add_header 'Access-Control-Allow-Origin' '*';
        
    #     # 每次访问, 不缓存
    #     add_header Cache-Control 'no-cache， must-revalidate';
    # } 
    
    # location /{
    #     root   D:\Dev\www;
    #     index  index.html index.htm;
    #    proxy_pass http://localhost:9000/;
      
    #    #告诉浏览器允许跨域访问的方法
    #    add_header Access-Control-Allow-Methods *;
    #    # 告诉浏览器缓存OPTIONS预检请求1小时
    #    add_header Access-Control-Max-Age 3600;
    #    #允许带有cookie访问
    #    add_header Access-Control-Allow-Credentials true;
    #    #注意 * 不能满足带有cookie的访问,Origin 必须是全匹配,这里通过变量获取
    #    add_header Access-Control-Allow-Origin $http_origin;
    #    #设置支持所有的自定义请求头
    #    add_header Access-Control-Allow-Headers $http_access_control_request_headers;
    #    #如果预检请求,则返回成功,不需要转发到后端
    #    if ($request_method = OPTIONS){
    #        return 200;
    #    }
    # } 

    # location / {    
    #     root   D:\Dev\www;
    #     index  index.html index.htm;
    #    proxy_pass http://192.168.31.193:8081;    
    #    proxy_set_header Host $host:9000;    
    #    proxy_set_header X-Real-IP $remote_addr;    
    #    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;    
    # }

    location / {
        root   D:\Dev\www;
        index  index.html index.htm;
       if ($request_method = 'OPTIONS') {
           add_header 'Access-Control-Allow-Origin' '*';
           add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
           #
           # Custom headers and headers various browsers *should* be OK with but aren't
           #
           add_header 'Access-Control-Allow-Headers' 'DNT,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range';
           #
           # Tell client that this pre-flight info is valid for 20 days
           #
           add_header 'Access-Control-Max-Age' 1728000;
           add_header 'Content-Type' 'text/plain; charset=utf-8';
           add_header 'Content-Length' 0;
           return 204;
       }
       if ($request_method = 'POST') {
           add_header 'Access-Control-Allow-Origin' '*';
           add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
           add_header 'Access-Control-Allow-Headers' 'DNT,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range';
           add_header 'Access-Control-Expose-Headers' 'Content-Length,Content-Range';
       }
       if ($request_method = 'GET') {
           add_header 'Access-Control-Allow-Origin' '*';
           add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
           add_header 'Access-Control-Allow-Headers' 'DNT,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range';
           add_header 'Access-Control-Expose-Headers' 'Content-Length,Content-Range';
       }
    }

    #error_page  404              /404.html;

    # redirect server error pages to the static page /50x.html
    #
    error_page   500 502 503 504  /50x.html;
    location = /50x.html {
    #    root   html;
        root   D:\Dev\www;
    }

    # proxy the PHP scripts to Apache listening on 127.0.0.1:80
    #
    #location ~ \.php$ {
    #    proxy_pass   http://127.0.0.1;
    #}

    # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
    #
    #location ~ \.php$ {
    #    root           html;
    #    fastcgi_pass   127.0.0.1:9000;
    #    fastcgi_index  index.php;
    #    fastcgi_param  SCRIPT_FILENAME  /scripts$fastcgi_script_name;
    #    include        fastcgi_params;
    #}

    # deny access to .htaccess files, if Apache's document root
    # concurs with nginx's one
    #
    #location ~ /\.ht {
    #    deny  all;
    #}
}


# another virtual host using mix of IP-, name-, and port-based configuration
#
#server {
#    listen       8000;
#    listen       somename:8080;
#    server_name  somename  alias  another.alias;

#    location / {
#        root   html;
#        index  index.html index.htm;
#    }
#}


# HTTPS server
#
# server {
#     listen       3000;
#     server_name  resouce;
#    # 以文件目录的方式展开
#     autoindex on;
#     location / {
#         root   D:\Dev\www;
#         # 跨域
#         add_header Access-Control-Allow-Origin *;
#         # 每次访问, 不缓存
#         add_header Cache-Control 'no-cache， must-revalidate';
#     }


#    ssl_certificate      cert.pem;
#    ssl_certificate_key  cert.key;

#    ssl_session_cache    shared:SSL:1m;
#    ssl_session_timeout  5m;

#    ssl_ciphers  HIGH:!aNULL:!MD5;
#    ssl_prefer_server_ciphers  on;

#    location / {
#        root   html;
#        index  index.html index.htm;
#    }
#}

}