nginx中的root和alias命令比较

192.168.101.189为nginx服务器IP；
root:

代表虚拟机中实际目录/usr/local/nginx/asdasd/目录下必须有html文件；
curl 192.168.101.189:8080/即找/usr/local/nginx/asdasd/index.html文件；
192.168.101.189:8080/ = /usr/local/nginx/asdasd/
192.168.101.189:8080/1/ == /usr/local/nginx/asdasd/1/

只能找/usr/local/nginx/asdasd/1/目录下的html文件且必须有，才可以实现；无法往上找/usr/local/nginx/asdasd/目录下的index;
curl 192.168.101.189:8080/1/ == curl /usr/local/nginx/asdasd/1/

alias

代表192.168.101.189:8080/1/ == /usr/local/nginx/asdasd/

curl 192.168.101.189:8080/1/会去找 /usr/local/nginx/asdasd/下的index.html文件;
curl 192.168.101.189:8080/1/1/ 会去找 /usr/local/nginx/asdasd/1下的index.html文件;

curl 192.168.101.189:8080/zjwhandsome/会去找 /usr/local/nginx/asdasd/下的index.html文件;
curl 192.168.101.189:8080/zjwhandsome/1/ 会去找 /usr/local/nginx/asdasd/1下的index.html文件;
总结：root的location的地址必须是真实存在的；alias的地址可以自行设定；
对于root:
192.168.101.189:8080 + location后面的root 后面的+location后面的；
对于alias:
192.168.101.189:8080+ location后面的alias下的目录；