nginx-openresty-lua使用

以下配置均在/usr/local/openresty/nginx/conf/nginx.conf中配置，涉及到的lua脚本均创建在/usr/local/openresty/nginx/conf
1. localtion下直接写lua脚本：content_by_lua location /lua {default_type text/html; #响应内容为html解析content_by_lua 'ngx.say(" hello world ! welcome to openresty! ")'; # content_by_lua：调用lua脚本} 2. 调用lua脚本文件：content_by_lua_file location /lua1 {default_type text/html; #响应内容为html解析content_by_lua_file conf/001.lua; # content_by_lua_file：调用lua脚本 } 001.lua脚本内容：
ngx.say(" hello world ! welcome to openresty! ") 3. 调用lua脚本文件：include location /lua2 {default_type text/html; #响应内容为html解析include lua.conf; # include ：调用lua脚本}lua.conf脚本：
content_by_lua_file conf/002.lua; # content_by_lua_file：调用lua脚本002.lua脚本：
ngx.say(" hello world ! welcome to openresty! i am lua2 ") 4. 调用lua脚本：content_by_lua_block location /lua3 {default_type text/html; #响应内容为html解析content_by_lua_block {ngx.say(" hello world ! welcome to openresty! i am content_by_lua_block ")}} 5. 直接配置在nginx.conf的server下配置：include lua1.conf; include lua1.conf; lua1.conf脚本：
location /lua4 {default_type text/html; #响应内容为html解析content_by_lua_file conf/003.lua; } 003.lua脚本：
ngx.say(" hello world ! welcome to openresty! i am lua4 ") 6. nginx中uri变量获取获取单个变量：
location /lua5 {default_type text/html; #响应内容为html解析content_by_lua_block {ngx.say(ngx.var.arg_username) #ngx对象中->变量->参数->_下划线为语法->username为url请求参数名}} 请求：http://10.4.xx.xx/lua5?username=jllasdfasdfsadf
获取多个变量：
006.lua脚本：
local uri_args = ngx.req.get_uri_args()for k,v in pairs(uri_args) doif type(v) == "table" thenngx.say(k," : ",table.concat(v,",")," ")#table：lua中的表，类似于数组。如：get请求中有多个同名参数不同值的，会通过这个函数来处理elsengx.say(k," : ",v," ")endendnginx.conf中配置：
location /lua6 {default_type text/html; #响应内容为html解析content_by_lua_file conf/006.lua;} 请求：http://10.4.xx.xx/lua6?username=jll&school=xxSchool&age=18&class=math&class=eglish&class=java
7. 获取请求头的信息 007.lua脚本：
local headers = ngx.req.get_headers()ngx.say("Host : ", headers["Host"], " ")ngx.say("user-agent : ", headers["user-agent"], " ")ngx.say("user-agent : ", headers.user_agent, " ")ngx.say("-------------------------------------------"," ")for k,v in pairs(headers) doif type(v) == "table" thenngx.say(k," : ",table.concat(v,",")," ")elsengx.say(k," : ",v," ")endendnginx.conf脚本：
location /lua7 {default_type text/html; #响应内容为html解析content_by_lua_file conf/007.lua;} 请求：http://10.4.xx.x/lua7

【nginx-openresty-lua使用】