Nginx正确记录post日志的方法事实上可以很简单，这取决于把 access_log 放在哪个 location 里面。一，放到包含fastcgi_pass或proxy_pass的Location里面。如下：[php] view plaincopylocation ~ \.php$ {  root           /data/webapps;  fastcgi_pass   127.0.0.1:9000;  fastcgi_index  index.php;  fastcgi_param  SCRIPT_FILENAME  /data/webapps$fastcgi_script_name;  access_log post_log /tmp/post.log
}  post_log 为 http 区域里面定义的日志格式，可以是这样：[php] view plaincopylog_format post_log '$remote_addr - $request_body';  $request_body 即为post的数据。然后post数据到这个目录下的.php文件，就可以记录post日志了。二，放到任意Location里面。具体步骤如下：
1，安装LuaJITwget http://luajit.org/download/LuaJIT-2.0.1.tar.gz
tar -zxvf LuaJIT-2.0.1.tar.gz
make PREFIX=/data/apps/luajit2.0.1
make install PREFIX=/data/apps/luajit2.0.2，下载并解压以下两个个模块
http://github.com/simpl/ngx_devel_kit/tags
http://github.com/chaoslawful/lua-nginx-module/tags

把解压后的2个目录分别移动到 /usr/local/src/ 目录下面(个人习惯而已)3，重新编译Nginxexport LUAJIT_LIB=/data/apps/luajit2.0.1/lib
export LUAJIT_INC=/data/apps/luajit2.0.1/include/luajit-2.0
./configure --prefix=/data/apps/nginx --add-module=/usr/local/src/ngx_devel_kit-0.2.19 --add-module=/usr/local/src/lua-nginx-module-0.9.2
make -j2
make install4，然后在需要记录post日志的Location里面加上如下语句：[php] view plaincopylua_need_request_body on;
content_by_lua 'local s = ngx.var.request_body';
log_format post_log '$remote_addr - $request_body';  5，在启动Nginx的时候如果报错：
error while loading shared libraries: libluajit-5.1.so.2: cannot open shared object file: No such file or directory解决：
ln -s /data/apps/luajit2.0.1/lib/libluajit-5.1.so.2 /lib64/libluajit-5.1.so.2参考文档：
http://www.cnblogs.com/meteorx/p/3188647.html
http://wiki.nginx.org/HttpLuaModule#Synopsis