ngx.req.raw_header ------------------ **语法:** *str = ngx.req.raw_header(no_request_line?)* **环境:** *set_by_lua*\**, rewrite_by_lua*\**, access_by_lua*\**, content_by_lua*\**, header_filter_by_lua*\* 返回 Nginx 服务器接收到的原始 HTTP 协议头。 默认时，请求行和末尾的 `CR LF` 结束符也被包括在内。例如， ```lua ngx.print(ngx.req.raw_header()) ``` 输出结果类似： GET /t HTTP/1.1 Host: localhost Connection: close Foo: bar 可以通过指定可选的 `no_request_line` 参数为 `true` 来去除结果中的请求行。例如， ```lua ngx.print(ngx.req.raw_header(true)) ``` 输出结果类似： Host: localhost Connection: close Foo: bar 这个方法在 `v0.7.17` 版本中首次引入。 > English Source **syntax:** *str = ngx.req.raw_header(no_request_line?)* **context:** *set_by_lua*\**, rewrite_by_lua*\**, access_by_lua*\**, content_by_lua*\**, header_filter_by_lua*\* Returns the original raw HTTP protocol header received by the Nginx server. By default, the request line and trailing `CR LF` terminator will also be included. For example, ```lua ngx.print(ngx.req.raw_header()) ``` gives something like this: GET /t HTTP/1.1 Host: localhost Connection: close Foo: bar You can specify the optional `no_request_line` argument as a `true` value to exclude the request line from the result. For example, ```lua ngx.print(ngx.req.raw_header(true)) ``` outputs something like this: Host: localhost Connection: close Foo: bar This method was first introduced in the `v0.7.17` release. [返回目录](#nginx-api-for-lua)