nginx:前后端分离解决跨域问题

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location / {
                       proxy_pass        http://dev.abc.com;
                     
                       proxy_set_header   X-Real-IP        $remote_addr;
                       proxy_set_header   X-Forwarded-For  $proxy_add_x_forwarded_for;
                       proxy_set_header   Host $host:$server_port;               
                      
                       add_header 'Access-Control-Allow-Origin' 'http://m3.abc.com';
                       add_header 'Access-Control-Allow-Credentials' 'true';
                       add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
                      
}
//////////////////////////////////////////////////////////////////////////
前后端分离配置:
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hosts
127.0.0.1       dev.abc.com

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/usr/local/etc/nginx/nginx.conf


#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 {
        listen       8080;
        server_name  localhost;

        #charset koi8-r;

        #access_log  logs/host.access.log  main;

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

        #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;
        }

        # 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       443 ssl;
    #    server_name  localhost;

    #    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;
    #    }
    #}
    include servers/*;
}
=================================
/usr/local/etc/nginx/servers/yyb.conf

upstream cinema.admin {
         server 127.0.0.1:10081;
    }
    server {
        listen       80;
        server_name  dev.abc.com;

        location /api {
proxy_pass http://cinema.admin;
                add_header Cache-Control no-cache;
                add_header Cache-Control private;
}
       
       location /admin {
                rewrite  ^/api/(.*)$ /$1 break;
                proxy_pass http://cinema.admin;
                add_header Cache-Control no-cache;
                add_header Cache-Control private;
        }
       
        location / {
            root   /Users/samson/Work/movikr/movikr_workspace/cinema-admin-all/cinema-admin-h5/src;
            index  index.html index.htm;
            add_header Cache-Control no-cache;

        }
    }

=====================================
api服务: 127.0.0.1:10081
前端:http://dev.abc.com
浏览器访问http://dev.abc.com
访问http://dev.abc.com/api/load调用http://127.0.0.1:10081/load的服务接口