nginx使用lua直接调用mongodb

https://github.com/bigplum/lua-resty-mongol 这个是lua的mongodb驱动，需要安装openresty 1.0.11.7,这里安装1.0.11.28

# wget https://openresty.org/download/ngx_openresty-1.0.11.28.tar.gz

# tar xzvf ngx_openresty-1.0.11.28.tar.gz

# cd ngx_openresty-1.0.11.28

# ./configure --prefix=/data/app/openresty --with-luajit && gmake && gmake install

......

# curl https://codeload.github.com/bigplum/lua-resty-mongol/zip/master -o lua-resty-mongol-master.zip

# unzip lua-resty-mongol-master.zip

# make install

# cp -a /usr/local/openresty/lualib/resty/mongol /data/app/openresty/lualib/resty/

tengine配置：

nginx.conf

在http片段中添加如下行

lua_package_path '/data/app/openresty/lualib/?/init.lua;/data/app/openresty/lualib/?.lua;;';

添加操作mongo的lua脚本

# cat /data/app/tengine/lua/getmongo.lua

local mongo = require "resty.mongol"
local conn = mongo:new()
conn:set_timeout(1000)
local ok, err = conn:connect("127.0.0.1",27017)
ngx.header.content_type="text/explain"
if not ok then
ngx.say("connect failed: "..err)
end
local db=conn:new_db_handle("test")
local col = db:get_col("test")
local r = col:find_one({name="dog"},{_id=0})
for k,v in pairs(r) do
ngx.say(k..": "..v)
end

# cat insertmongo.lua

local request_method = ngx.var.request_method
local args = nil
if "GET" == request_method then
args = ngx.req.get_uri_args()
elseif "POST" == request_method then
ngx.req.read_body()
args = ngx.req.get_post_args()
end
ngx.header.content_type="text/explain"
if args == nil then
ngx.say("error:no args")
end

local mongo = require "resty.mongol"
local conn = mongo:new()
conn:set_timeout(1000)
local ok, err = conn:connect("127.0.0.1",27017)
if not ok then
ngx.say("connect failed: "..err)
end
local db = conn:new_db_handle("test")
local col = db:get_col("test")
local docs = {args}
local ist, isterr = col:insert(docs,0,0)

if isterr then
ngx.say("insert error: "..isterr)
else
ngx.say("insert success.")
end

在tengine的server片段中添加如下

server

{

listen 80; #listen end

server_name 127.0.0.1; #server_name end

client_max_body_size 50m;

location /mongodb/get {

content_by_lua_file /data/app/tengine/lua/getmongo.lua;

}

}

往test库的test表里插入数据并测试结果

# curl "http://127.0.0.1/mongodb/get"
name: dog
age: 12