在做vue+springboot+nginx的时候，发现使用localhost登录后无法访问接口，每次都会提示没有登录而被拒绝访问，感觉每次都是另外一台服务器在访问一样。查看请求，发现第二次请求并没有发送登录后的sessionId过去，所以判断是cookie未保存。测试发现localhost和127.0.0.1都无法保存上cookie，换成内网IP，在本地hosts文件映射一个域名到本机，或者直接使用postman访问springboot都是可以的。原因未知，大家可以讨论下。nginx配置如下：`

worker_processes 1;

events {

worker_connections  1024;

}

http {

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

keepalive_timeout  65;

gzip  on;

server {
    listen       80;
    server_name  localhost;
    proxy_set_header Host $host; 
    #charset koi8-r;

    #access_log  logs/host.access.log  main;
    
    location  ~ .*\.(html|htm|gif|jpg|jpeg|bmp|png|ico|txt|js|css|ttf|woff)$ {
        rewrite /login.html /index.html permanent;
        root D:/Vue/bmsfront/dist;
        index index.html;
    }
    
    location = / {
        root D:/Vue/bmsfront/dist;
        index index.html;
    }
    
    location / {
        proxy_pass http://back_app;            
    }

}

upstream back_app {
    ip_hash;
    server localhost:8080;
    
    
}


# 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;
#    }
#}

}
`