一. 本地linux環境搭建
1. 安裝vmware
2. 安裝centos
3. centos關閉防火牆(當然只是方便學習用才關閉)/etc/init.d/iptables stop
4. 新增使用者 useradd test
passwd test
5. 配置ssh
vim /etc/ssh/sshd_config
service sshd restart
二. 安裝nginx(openresty)
wget ""
tar xzvf ngx_openresty-1.5.8.1.tar.gz
yum install gcc
yum install readline-devel pcre-devel openssl-devel
./configure
gmake
gmake install
三. 配置nginx
path=/usr/local/openresty/nginx/sbin:$path
export path
vim /usr/local/openresty/nginx/conf/nginx.conf
比如:worker_processes 1;
四. nginx操作mysql
1. 修改nginx.conf
}2. 編寫lua指令碼
-------dbutil.lua
dbutil = {}
function dbutil.getcon()
if not ngx.ctx.dbcon then
local mysql = require "resty.mysql"
local db, err = mysql:new()
if not db then
ngx.log(ngx.err, "failed to instantiate mysql: ", err)
return false, nil
enddb:set_timeout(6000)
local ok, err, errinfo, sqlstate = db:connect
if not ok then
ngx.log(ngx.err, "failed to connect: ", err, ": ", errno, " ", sqlstate)
return false, nil
endngx.ctx.dbcon = db
endreturn true, ngx.ctx.dbcon
endfunction dbutil.closecon(dbcon)
if not dbcon then return end
local ok, err = dbcon:set_keepalive(10000, 3000)
if not ok then
ngx.say("failed to set keepalive: ", err)
dbcon:close()
return
endend
return dbutil
---------inte***ce.lua
local dbutil = require("dbutil")
local args = ngx.req.get_uri_args()
if args == nil then
ngx.say("{}")
endlocal md5 = args["md5"]
if not md5 then
ngx.exit(400)
elseif string.len(tostring(md5)) ~= 32 then
ngx.exit(400)
endif not cjson then cjson = require "cjson" end
local status, db = dbutil.getcon()
if not status then
ngx.exit(500)
endlocal sql = "select *** from *** where md5='" .. md5 .. "'"
local res, err, errno, sqlstate = db:query(sql)
if res then
ngx.say(cjson.encode(res))
else
ngx.say(err, errno,sqlstate)
enddbutil.closecon(db)
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