LUA利用第三方API访问数据库

===========数据库访问--第三方

http {

upstream backend {

drizzle_server 192.168.4.119:3306 protocol=mysql

dbname=igirl user=root password=123456;

drizzle_keepalive max=10 overflow=ignore mode=single;

}

server {

listen 8080;

location /lua_content {

# MIME type determined by default_type:

default_type 'text/plain';

content_by_lua_block {

ngx.say('Hello,world!')

}

}

location /mysql {

drizzle_query $echo_request_body;

drizzle_pass backend;

}

location /api {

content_by_lua '

local sql = "select * from p_user"

local resp = ngx.location.capture("/mysql", {

method = ngx.HTTP_POST, body = sql

})

if resp.status ~= ngx.HTTP_OK or not resp.body then

error("failed to query mysql")

end

local parser = require "rds.parser"

local res, err = parser.parse(resp.body)

if res == nil then

error("failed to parse RDS: " .. err)

end

local rows = res.resultset

if not rows or #rows == 0 then

ngx.say("empty resultset")

ngx.exit(0)

end

for i, row in ipairs(rows) do

ngx.print("row ", i, ": ")

for col, val in pairs(row) do

if val ~= parser.null then

ngx.print(col, "=", val, " ")

else

ngx.print(col, "=null ")

end

end

ngx.say()

end

';

}

}

}