ngx_lua将lua嵌nginx,让nginx运行lua脚本。高并发,非堵塞过程中的各种请求。
url要求nginxserver,然后lua查询redis,返回json数据。
一.安装lua-nginx-module
參见《LNMLGC》架构
二.安装redis2-nginx-module模块
get https://github.com/openresty/echo-nginx-module
get https://github.com/openresty/redis2-nginx-module
get https://github.com/agentzh/set-misc-nginx-module.git
#
./configure --prefix=/usr/local/nginx \
--with-debug \
--with-http_stub_status_module \
--with-http_ssl_module \
--with-pcre=../pcre-8.21 \
--add-module=../ngx_devel_kit-0.2.19 \
--add-module=../lua-nginx-module-0.9.8 \
--add-module=../echo-nginx-module \
--add-module=../redis2-nginx-module \
--add-module=../set-misc-nginx-module
# make
# make install
三.安装lua-redis-parser
# git clone https:
//github.com/agentzh/lua-redis-parser.git
# export LUA_INCLUDE_DIR=/usr/local/include/luajit-2.0
# make CC=gcc
# make install CC=gcc
四.安装json
# wget http:
//files.luaforge.net/releases/json/json/0.9.50/json4lua-0.9.50.zip
# unzip json4lua-0.9.50.zip
# cp json4lua-0.9.50/json/json.lua /usr/local/lua/lib/
五.安装redis-lua
# git clone https:
//github.com/nrk/redis-lua.git
# cp redis-lua/src/redis.lua /usr/local/lua/lib/
六.配置
...
http {
...
upstream redis_pool {
server localhost:6379;
keepalive 1024 single;
//定义连接池大小,当连接数达到此数后。兴许的连接为短连接
}
server {
...
location /get_redis{
#internal;
set_unescape_uri $key $arg_key;
redis2_query hgetall $key;
redis2_pass redis_pool;
}
location /json {
content_by_lua_file conf/test.lua;
}
}
}
# vi test.lua,放在nginx.conf同文件夹下
local json = require("json")
local parser = require("redis.parser")
local res = ngx.location.capture("/get_redis",{
args = { key = ngx.var.arg_key }
})
if res.status == 200 then
reply = parser.parse_reply(res.body)
value = json.encode(reply)
ngx.say(value)
a = json.decode(value)
ngx.say(a[2])
end
七.測试
# redis-cli
127.0.0.1:6379> HMSET ttlsa www www.ttlsa.com mail mail.ttlsa.com
OK
127.0.0.1:6379> hgetall ttlsa
1) "www"
2) "www.ttlsa.com"
3) "mail"
4) "mail.ttlsa.com"
# curl http://localhost/json?
key=ttlsa
["www","www.ttlsa.com","mail","mail.ttlsa.com"]
www.ttlsa.com