nginx-configuration try_files detailed explanation

try_files is an instruction included in the http_core core module in nginx . It can mainly replace some rewrite instructions and improve parsing efficiency.

1. Grammar:

 Syntax rules for try_files:

Format 1: try_files file  ...  uri; 

Format 2: try_files  file  ... = code ;

2.Meaning

• Key point 1: Search for existing files in the specified file order, and use the first found file for request processing
• Key point 2: The search path is based on the given root or alias as the root path.
• Key point 3: If none of the given files are matched, re-request the uri given by the last parameter, which is the new location match.
• Key point 4: If it is format 2, if the last parameter is = 404, and if none of the given files are matched, the response code of 404 will be returned.
   

It can be understood as the path to obtain resources first