Nginx 位置优先级

Question

位置指令按什么顺序触发？

Answer 1

来自HTTP core module docs :

1. 带有“=”前缀的指令与查询完全匹配。如果找到，搜索就会停止。
2. 所有剩余的指令都带有常规字符串。如果此匹配使用“^~”前缀，则搜索停止。
3. 正则表达式，按照它们在配置文件中定义的顺序排列。
4. 如果 #3 产生匹配，则使用该结果。否则，将使用#2 中的匹配项。

文档中的示例:

location  = / {
  # matches the query / only.
  [ configuration A ] 
}
location  / {
  # matches any query, since all queries begin with /, but regular
  # expressions and any longer conventional blocks will be
  # matched first.
  [ configuration B ] 
}
location /documents/ {
  # matches any query beginning with /documents/ and continues searching,
  # so regular expressions will be checked. This will be matched only if
  # regular expressions don't find a match.
  [ configuration C ] 
}
location ^~ /images/ {
  # matches any query beginning with /images/ and halts searching,
  # so regular expressions will not be checked.
  [ configuration D ] 
}
location ~* \.(gif|jpg|jpeg)$ {
  # matches any request ending in gif, jpg, or jpeg. However, all
  # requests to the /images/ directory will be handled by
  # Configuration D.   
  [ configuration E ] 
}

如果仍然令人困惑，here's a longer explanation .