WEB服務與NGINX（7）-實現自定義錯誤頁面

1. 自定義錯誤頁面

• error_page code ... [=[response]] uri;

  定義錯誤頁，以指定的響應狀態碼進行響應，此指令由ngx_http_index_module模塊提供

  支持環境：http, server, location, if in location

  #1.修改nginx的配置文件如下，定義錯誤頁，把500 502 503 504 404這些狀態碼轉換為200狀態碼，並定義錯誤頁面。
  [root@nginx01 ~]# vim /etc/nginx/conf.d/virtualhost.conf 
  server {
  	listen 80;
  	server_name www.nginx01.com;
  	location / {
  		root /data/nginx/html/web1;
  		index index.html;
  	}
  
  	error_page 500 502 503 504 404 =200 /errorpage.html;
  	location = /errorpage.html {
  		root /data/nginx/html/web1/errorpage/;
  	}
  }
  
  #2.重啟nginx服務
  [root@nginx01 web1]# systemctl reload nginx.service
  
  #3.在web1下新建目錄errorpage和文件errorpage/errorpage.html
  [root@nginx01 web1]# ll errorpage/
  total 4
  -rw-r--r-- 1 root root 31 Jun 15 23:30 errorpage.html
  [root@nginx01 web1]# cat errorpage/errorpage.html 
  our system is being maintained
  
  #4.使用客戶端訪問一個不存在的頁面，能正常返回自定義的錯誤頁面，狀態碼變為200
  [root@xuzhichao ~]# curl http://www.nginx01.com/abc
  our system is being maintained
  [root@xuzhichao ~]# curl -I http://www.nginx01.com/abc
  HTTP/1.1 200 OK
  Server: nginx/1.20.1
  Date: Tue, 15 Jun 2021 15:36:27 GMT
  Content-Type: text/html
  Content-Length: 31
  Last-Modified: Tue, 15 Jun 2021 15:30:38 GMT
  Connection: keep-alive
  ETag: "60c8c79e-1f"
  Accept-Ranges: bytes