Question

我试图用Nginx反向代理api。我有以下配置：

worker_processes 4;

events { worker_connections 1024; }

http {

    upstream some_upstream {
            server  1.something.com;
            server  2.something.com;
    }

    server {

            listen 80;


            location ~/proxyNow/(?<zvar>(\w+))/(?<xvar>(\w+))/(?<yvar>(\w+))/ {
                    proxy_pass http://some_upstream/hello/something/$zvar/$xvar/$yvar/somethingelese;
                    proxy_set_header Host $http_host;
                    proxy_set_header Host            $host;
                    proxy_set_header X-Forwarded-For $remote_addr;
                    proxy_cache maps_cache;
                    proxy_cache_valid  200 302  365d;
                    proxy_cache_valid  404      1m;
                    proxy_redirect off;

            }

    }


}

当我尝试拨打以下网址http://localhost:82/proxyNow/1/2/3/?app_id=someAppId&app_code=someCode

时

我收到以下错误消息：

网址无效

请求的网址   ＆＃34; http://%5bNo%20Host%5d/hello/something/1/2/3/somethingelese＆＃34;，是   无效。参考＃9.be35dd58.1489086561.5c9bd3c

似乎nginx无法检索主机。但是如果我直接执行调用：

http://1.something.com/hello/something/$zvar/$xvar/$yvar/somethingelese?app_id=someAppId&app_code=someCode

http://2.something.com/hello/something/$zvar/$xvar/$yvar/somethingelese?app_id=someAppId&app_code=someCode

由于某种原因，Nginx似乎无法解析主机

Answer 1

您应该查看文档。

http://nginx.org/en/docs/http/ngx_http_proxy_module.html#proxy_pass

使用正则表达式指定位置时。


在这种情况下，应该指定指令而不使用URI。

我建议使用以下解决方案而不需要昂贵的正则表达式位置 http://nginx.org/en/docs/http/ngx_http_core_module.html#location

location /proxyNow/ {
  rewrite    /proxyNow/(?<zvar>(\w+))/(?<xvar>(\w+))/(?<yvar>(\w+))/.* /hello/something/$zvar/$xvar/$yvar/somethingelese$is_args?$args break;
  proxy_pass http://some_upstream;
... other nginx diretives;
}

反向代理时，Nginx proxy_pass返回[No Host]

1 个答案: