server {
    listen       80;
    listen  [::]:80;
    server_name  localhost;

    #root   /etc/nginx/html;
    #charset koi8-r;
    #access_log  /var/log/nginx/host.access.log  main;

    location /api1 {
    add_header 'Access-Control-Allow-Origin' $http_origin;
    add_header 'Access-Control-Allow-Credentials' 'true';
    add_header 'Access-Control-Allow-Headers' $http_access_control_request_headers;
    add_header 'Access-Control-Allow-Methods' *;

    if ($request_method = 'OPTIONS') {
        return 200;
    }

        alias   /usr/api1;
        # 用于vue打包发布后的路由跳转
    try_files $uri $uri/ /index.html @router;
        index  index.html index.htm;
    }

    location /api2 {
    
    add_header 'Access-Control-Allow-Origin' $http_origin;
    add_header 'Access-Control-Allow-Credentials' 'true';
    add_header 'Access-Control-Allow-Headers' $http_access_control_request_headers;
    add_header 'Access-Control-Allow-Methods' *;
    
    if ($request_method = 'OPTIONS') {
        return 200;
    }
    alias   /usr/api2;
    try_files $uri $uri/ /index.html @router;
        index  index.html index.htm;

    }
    location /api3 {
    
    add_header 'Access-Control-Allow-Origin' $http_origin;
    add_header 'Access-Control-Allow-Credentials' 'true';
    add_header 'Access-Control-Allow-Headers' $http_access_control_request_headers;
    add_header 'Access-Control-Allow-Methods' *;
    
    if ($request_method = 'OPTIONS') {
        return 200;
    }
    alias   /usr/api3;
    try_files $uri $uri/ /index.html @router;
        index  index.html index.htm;

    }

    location @router {
        rewrite ^.*$ /index.html last;
    }

   location /api {
    proxy_set_header x-forwarded-for $remote_addr;
    proxy_pass   http://127.0.0.1:7001/api;
   }
    
   location / {
    proxy_pass http://127.0.0.1:7001;
   }
    error_page   500 502 503 504  /50x.html;
    location = /50x.html {
        root   /usr/share/nginx/html;
    }
}