Nginx 代理缓存 proxy_cache 与缓存控制实践

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title: Nginx 代理缓存 proxy_cache 与缓存控制实践

keywords: proxy_cache_path, keys_zone, proxy_cache, upstream_cache_status, cache_bypass

description: 配置 Nginx 代理缓存路径与缓存区，设置不同响应的缓存时长与绕过规则，提升热点资源性能。

categories:

• 文章资讯
• 技术教程

---

缓存路径与共享区：

proxy_cache_path /var/cache/nginx levels=1:2 keys_zone=STATIC:10m inactive=7d max_size=1g;

站点缓存策略：

server {
  listen 80;
  server_name static.example.com;

  location /assets/ {
    proxy_cache STATIC;
    proxy_cache_valid 200 301 302 10m;
    proxy_cache_valid 404 1m;
    add_header X-Cache $upstream_cache_status;
    proxy_pass http://backend_static;
  }

  location /api/ {
    proxy_no_cache $http_authorization;
    proxy_cache_bypass $http_authorization;
    proxy_pass http://backend_api;
  }
}