nginx+lua(openresty) lua-mongodb installation and use (4)

Preface The
previous chapter has described the installation and use of ua-protobuf.
This chapter mainly describes the installation and use of lua-mongodb in the openresty environment.

1: Environment
ubuntu16(18)
mongodb 3.6

2: Install mongodb 3.6

sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 2930ADAE8CAF5059EE73BB4B58712A2291FA4AD5
#创建版本列表文件
echo "deb [ arch=amd64,arm64 ] https://repo.mongodb.org/apt/ubuntu xenial/mongodb-org/3.6 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-org-3.6.list

#更新 ubuntu 软件源
sudo apt-get update
#安装最新版mongodb
sudo apt-get install -y mongodb-org

If you need to install 4.0, just change the first two sentences

#导入 apt 的 key
sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 9DA31620334BD75D9DCB49F368818C72E52529D4
#创建版本列表文件
echo "deb [ arch=amd64,arm64 ] https://repo.mongodb.org/apt/ubuntu xenial/mongodb-org/4.0 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-org-4.0.list

Modify sudo vim /etc/mongod.conf
mainly modified 3 places, storage log net

After mongodb 3.0, the configuration file adopts YAML format, which uses key:value to indicate that
the beginning uses "space" as indentation.
If there is a value after the colon ":", it needs to be followed by a space
If the key only indicates the level, there is no need to add a space after the ":" The following error is 0.0.0.0 There is a
missing space in front of it

directory

/lib/systemd/system/mongod.service

sudo chown -R mongodb:mongodb $HOME/mongodb/db
sudo chown -R mongodb:mongodb $HOME/mongodb/log

It is not recommended to put it in the $HOME directory

The relevant commands are as follows

启动、重启、停止
sudo service mongod start
sudo service mongod restart
sudo service mongod stop

手动启动
sudo mongod --config /etc/mongod.conf
sudo mongod --config /etc/mongod.conf --fork

OK, success

3: Install lua-mongodb

Download three dependencies (manually download the compressed package if you are not online eg: https://github.com/isage/lua-resty-moongoo)
git clone https://github.com/isage/lua-resty-moongoo.git
git clone git://github.com/mongodb/libbson.git
git clone https://github.com/isage/lua-cbson.git

The software directory

openresty installation directory is $HOME/openresty
software downloads are placed in $HOME/software

1>Download lua-resty-moongoo Unzip
cd lua-resty-moongoo

cp -r  ./lib/resty/*   $HOME/openresty/lualib/resty

2> Download libbson and decompress it.
You can install
sudo apt-get install autoconf automake libtool first
, otherwise it may report to see if the system has installed
ubuntu@ubuntu:~/software/libbson-master$ ./autogen.sh
Error: libtoolize was not found on your system. Cannot continue.
Error: autoreconf not found, please install it.

cd libbson
./autogen.sh 
make
make install
#make clean && make LUA_INCLUDE_DIR=/usr/local/openresty/luajit/include/luajit-2.1 LUA_CMODULE_DIR=/usr/local/openresty/lualib LUA_MODULE_DIR=/usr/local/openresty/lualib CBSON_CFLAGS="-g -fpic -I/usr/local/include/libbson-1.0/ " CC=cc
make clean && make LUA_INCLUDE_DIR=$HOME/openresty/luajit/include/luajit-2.1 LUA_CMODULE_DIR=$HOME/openresty/lualib LUA_MODULE_DIR=$HOME/openresty/lualib CBSON_CFLAGS="-g -fpic -I/usr/local/include/libbson-1.0/ " CC=cc

Default installation directory
/usr/local/lib
/usr/local/include/libbson-1.0

3> lua-cbson download and decompress

cd lua-cbson
mkdir build  
cd build  
cmake ..  
make  
make install    ####这里这步没执行，感觉没必要

Encountered a problem

, modify CMakeList.txt in the
$HOME/software/lua-cbson-master directory,



copy the generated cbson.so to the $HOME/openresty/lualib directory,

you can refer to Chapter


4: Test script
testmongodb.lua

local moongoo = require("resty.moongoo") -- 引入依赖
local cbson = require("cbson") 
local cjson = require("cjson") 
----mongodb://[username:password@]host1[:port1][,host2[:port2],...[,hostN[:portN]]][/[database][?options]]
--local mg, err = moongoo.new("mongodb://root:[email protected]:27017") -- 创建连接
--[[
local mg, err = moongoo.new("mongodb://127.0.0.1:27017") -- 创建连接
if not mg then
  error(err) -- 如果有错误
 end
local col = mg:db("usermap"):collection("incUserid") -- 选择db和表
--
-- 插入数据

--local ids, err = col:insert({ videoName = "bar",vipVideoPlayUrl= "test"})
mg:close() --关闭连接
--]]
ngx.say(123)

local mg, err = moongoo.new("mongodb://127.0.0.1:27017") -- 创建连接
if not mg then
  error(err) -- 如果有错误
 end
ngx.say(125)

local col = mg:db("usermap"):collection("incUserid") -- 选择db和表
ngx.say(126)
--local  cursor = col:find({})
--local count1 = col:count()

--local res=col:find({ 100843 },{'uid'})   --shell ok
--local res=col:find({ 'uid' },{100843})
local res, err = col:find_one({
    
     uid = 100843})  --shell ok
if res then 

 	if res.uid then
 	  local uid = tonumber(tostring(res.uid))
          ngx.say('uid='..uid)
	end
	if res._id  then
		local id = tostring(res._id)
		ngx.say('id='..id)
	end

	local str = cjson.encode(tostring(res))  --"table: 0x7f4760ba3140"<br/>
	ngx.say(str, "<br/>")
        --ngx.say(res['uid'])
	--ngx.say(res)
end

--[[  above  shell ok
local  cursor = col:find({}) 
if cursor then
   local num,err1 = cursor:count() --num=userdata
  
   if  err1 == nil then
	ngx.say('num not nil='..type(num))
   end
   ngx.say('num='..type(num))
   local n = tonumber(tostring(num))
	ngx.say('n='..n)
end
--]]
ngx.say(127)
--[[
for index,item in cursor:pairs() do
        ngx.say('数据: '..index)

        if not item['url'] then 
                ngx.say('数据:'..item["title"])
        else
                ngx.say('数据:'..item["title"]..item['url'])
                ngx.say(json_decode(item['url']))
        end


end
--]]
--local doc, err = col:find({ "uid" = 100843})
--local doc, err = col:find_one({ foo = "bar"})
--print(doc.uid)
mg:close()

--[[
https://blog.csdn.net/qq_26437925/article/details/50933382
require("a.b.c")

查找a的C library(见过程2.3)
检查它是否有luaopen_a_b_c函数

require("test")
--test.lua
--]]

5: Test results

6: Upload the DEMO project if necessary.
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