Nginx proxy_pass反向代理配置访问不到 一直404_nginx 设置了proxy还是访问不了

问题背景：

开发配置nginx反向代理，发现一直不通；

location /proxy/ {
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header REMOTE-HOST $remote_addr;
        proxy_set_header X-Forwarded-For $http_x_forwarded_for;
        proxy_pass http://my-server/; # 服务对应地址
        proxy_http_version 1.1;
        proxy_set_header Connection "";
        proxy_read_timeout 60;
        proxy_send_timeout 60;
     }

curl http://localhost/proxy/hello 

报404 问题

改成如下：

location /proxy/ {
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header REMOTE-HOST $remote_addr;
        proxy_set_header X-Forwarded-For $http_x_forwarded_for;
        proxy_pass http://my-server/proxy/; # 服务对应地址
        proxy_http_version 1.1;
        proxy_set_header Connection "";
        proxy_read_timeout 60;