lua连接数据库操作示例代码

local mysql = require "resty.mysql"
local db, err = mysql:new()
if not db then
ngx.say("failed to instantiate mysql: ", err)
return
end

db:set_timeout(1000) -- 1 sec
local ok, err, errcode, sqlstate = db:connect{
host = "10.209.**.**",
port = 1234,
database = "test",
user = "user",
password = "123456",
charset = "utf8",
max_packet_size = 1024 * 1024,
}
if not ok then
ngx.say("failed to connect: ", err, ": ", errcode, " ", sqlstate)
return
end

ngx.say("connected to mysql.")