1.前段時(shí)間糾結(jié)了很久，一直弄不清lua和tomcat的聯(lián)系。一直認(rèn)為是lua調(diào)用tomcat的接口才可使用，后面才明白過(guò)來(lái)，進(jìn)入了一個(gè)誤區(qū)，lua本身就是一門(mén)獨(dú)立的腳本語(yǔ)言。在openresty里面配置好，即可編寫(xiě)映射和響應(yīng)。

下面是自己編寫(xiě)的lua代碼一例，僅供參考。還有些不完善，要開(kāi)始忙項(xiàng)目了，等有空再繼續(xù)更新。

2.下面是lua代碼，記得在nginx.conf寫(xiě)好配置。

local request_method = ngx.var.request_method local cjson = require("cjson") local mysql = require("resty.mysql") local quote = ngx.quote_sql_str local db,err = mysql:new() local function close_db(db) if not db then return end db:close() end if not db thennax.say("new mysql error",err) endlocal args = nil local username = nil local pwd = nil if "GET" == request_method thenargs = ngx.req.get_uri_args() elseif "POST" == ngx.request_method thenngx.req.read_body()args = ngx.req.get_post_args() end username = tostring(args["username"]) pwd = tostring(args["pwd"]) if username == nil thenngx.say("username not nil")return elseif username == '' thenngx.say("username not nil")return elseif pwd == nil thenngx.say("password not nil")return; elseif pwd == '' thenngx.say("password not nil")return; enddb:set_timeout(1000) local props = { host = "127.0.0.1", port = 3306, database = "hwc_hello", user = "root", password = "hwc123456" } local res, err, errno, sqlstate = db:connect(props) if not res then ngx.say("connect to mysql error : ", err, " , errno : ", errno, " , sqlstate : ", sqlstate) return close_db(db) end local select_name = "select username from user_table where username="..quote(username) res, err, errno, sqlstate = db:query(select_name) if not res then ngx.exec("/vi/404.html") return close_db(db) end local result = {} result.success = true; result.info = "登錄成功" ngx.say(cjson.encode(result))

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轉(zhuǎn)載于:https://www.cnblogs.com/dslx/p/9208622.html

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