uHTTPd 是一个 OpenWrt/LUCI 开发者从头编写的 Web 服务器。 它着力于实现一个稳定高效的服务器，能够满足嵌入式设备的轻量级任务需求，且能够与 OpenWrt 的配置框架 (UCI) 整合。默认情况下它被用于 OpenWrt 的 Web 管理接口 LuCI。当然，uHTTPd 也能提供一个常规 Web 服务器所需要的所有功能。
Uhttp的编译时cmake编译系统，按照cmake编译方法编译即可。Uhttp是基于ubox ubus json-c的，如果加上SSL ，还需要openssl库。
$ git clone https://github.com/json-c/json-c.git
$ cd json-c
$ ./autogen.sh --configure
$ make
$ make install
$ git clone git:https://git.openwrt.org/project/libubox.git
$ cd libubox
$ cmake -DCMAKE_INSTALL_PREFIX=/usr -DBUILD_LUA=off
$ make
$ make install
$ git clone git:https://git.openwrt.org/project/ubus.git
$ cd ubus
$ cmake -DBUILD_LUA=off
$ make
$ make install
最后编译安装uhttpd。（注意：CMakeLIsts.txt中的编译新增了-Werror选项，所有警告会当成错误进行处理）
$ cd uhttpd/build
$ cmake ..
$ make
$ make install
Usage: ./uhttpd -p [addr:]port [-h docroot]
-f Do not fork to background
-c file Configuration file, default is '/etc/httpd.conf'
-p [addr:]port Bind to specified address and port, multiple allowed
-s [addr:]port Like -p but provide HTTPS on this port
-C file ASN.1 server certificate file
-K file ASN.1 server private key file
-h directory Specify the document root, default is '.'
-E string Use given virtual URL as 404 error handler
-I string Use given filename as index for directories, multiple allowed
-S Do not follow symbolic links outside of the docroot
-D Do not allow directory listings, send 403 instead
-R Enable RFC1918 filter
-n count Maximum allowed number of concurrent requests
-l string URL prefix for Lua handler, default is '/lua'
-L file Lua handler script, omit to disable Lua
-u string URL prefix for HTTP/JSON handler
-U file Override ubus socket path
-x string URL prefix for CGI handler, default is '/cgi-bin'
-i .ext=path Use interpreter at path for files with the given extension
-t seconds CGI, Lua and UBUS script timeout in seconds, default is 60
-T seconds Network timeout in seconds, default is 30
-d string URL decode given string
-r string Specify basic auth realm
-m string MD5 crypt given string
