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>今日计算机知识科普:什么是Nginx?
今日计算机知识科普:什么是Nginx?
2025-12-04 15:49:02
今日计算机知识科普:什么是Nginx?
逻纪课堂,今日分享
想象一下双十一的淘宝,每秒有上百万人同时点击“立即购买”。如果没有一个高效的调度中心,服务器会瞬间崩溃。Nginx就是这个至关重要的“调度中心”或“交通警察”。
它是一款高性能的HTTP和反向代理服务器。简单说,它专门处理高并发访问。
它的两大核心本领:
反向代理与负载均衡:你的网站有一台主服务器(比如SpringBoot应用)。当访问量暴增时,一台机器顶不住。Nginx可以站在前端,把用户请求智能地转发到后台多台服务器上,分摊压力,避免任何一台“累趴下”。
静态资源服务:网站上的图片、CSS、JS文件都是“静态资源”。Nginx处理这些文件的速度极快。它可以直接把这些文件发给用户,而不用麻烦后台的Java/PHP应用服务器,从而大幅提升整体响应速度。
举个生活化的例子:
Nginx就像一家热门餐厅的前台经理。
客户(用户请求)来了,他先接待(反向代理)。
如果客户只是要杯水(静态请求),他直接让服务员送了(直接返回静态文件)。
如果客户要点菜(动态请求),他看看后厨(应用服务器)哪个厨师闲,就把菜单递过去(负载均衡)。
他还能够一个域名对应多个后台服务(基于域名的路由),就像一个大商场入口,引导你去不同的专卖店。
总之,Nginx是构建现代高流量网站不可或缺的基石,以其高稳定性和低资源消耗而闻名。
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#编程
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CONNECT:[ UseTime:0.000571s ] mysql:host=127.0.0.1;port=3306;dbname=f_mffb;charset=utf8mb4
SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000773s ]
SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000308s ]
SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000352s ]
SHOW FULL COLUMNS FROM `set` [ RunTime:0.000534s ]
SELECT * FROM `set` [ RunTime:0.000229s ]
SHOW FULL COLUMNS FROM `article` [ RunTime:0.000623s ]
SELECT * FROM `article` WHERE `id` = 457251 LIMIT 1 [ RunTime:0.000674s ]
UPDATE `article` SET `lasttime` = 1765099076 WHERE `id` = 457251 [ RunTime:0.002069s ]
SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.000280s ]
SELECT * FROM `article` WHERE `id` < 457251 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000384s ]
SELECT * FROM `article` WHERE `id` > 457251 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000422s ]
SELECT * FROM `article` WHERE `id` < 457251 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000482s ]
SELECT * FROM `article` WHERE `id` < 457251 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.001696s ]
SELECT * FROM `article` WHERE `id` < 457251 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.002887s ]
0.082377s