Nginx+Lua 开发的 hello world 案例 详解，nginxlua

Nginx+Lua 开发的 hello world 案例 详解，nginxlua

编辑 Nginx 配置文件# cd /opt/modules/openresty/nginx/conf# cp nginx.conf nginx.conf.example    # 备份 nginx.conf 文件# vi nginx.conf
worker_processes  1;events {    worker_connections  1024;}http {    include       mime.types;    default_type  application/octet-stream;    # 在 http 部分添加，如下两个配置，将加载 Lua 相关库    lua_package_path "/opt/modules/openresty/lualib/?.lua;;";    lua_package_cpath "/opt/modules/openresty/lualib/?.so;;";
    sendfile        on;    keepalive_timeout  65;    server {        listen       8081;        server_name  localhost;        location / {            root   html;            index  index.html index.htm;        }        error_page   500 502 503 504  /50x.html;        location = /50x.html {            root   html;        }    }}
创建 lua.conf# cd /opt/modules/openresty/nginx/conf# vi lua.confserver {    listen       80;    server_name  _;}
在 nginx.conf 的 http 部分添加 :# cd /opt/modules/openresty/nginx/conf# vi nginx.conf
worker_processes  1;events {    worker_connections  1024;}http {    include       mime.types;    default_type  application/octet-stream;    # 在 http 部分添加，如下两个配置，将加载 Lua 相关库    lua_package_path "/opt/modules/openresty/lualib/?.lua;;";    lua_package_cpath "/opt/modules/openresty/lualib/?.so;;";    # 加载 Lua 配置先关文件    include lua.conf;
    sendfile        on;    keepalive_timeout  65;    server {        listen       8081;        server_name  localhost;        location / {            root   html;            index  index.html index.htm;        }        error_page   500 502 503 504  /50x.html;        location = /50x.html {            root   html;        }    }}
验证配置是否正确 :# cd /opt/modules/openresty/nginx# ./sbin/nginx -tnginx: the configuration file /opt/modules/openresty/nginx/conf/nginx.conf syntax is oknginx: configuration file /opt/modules/openresty/nginx/conf/nginx.conf test is successful
在 lua.conf 的 server 部分 /lua 请求路径的拦截配置 :# cd /opt/modules/openresty/nginx/conf# vi lua.confserver {    listen       80;    server_name  _;    # 添加 /lua 路径的配置    location /lua {        default_type 'text/html';        content_by_lua 'ngx.say("hello world")';    }}
# 检测修改的配置是否正常# cd /opt/modules/openresty/nginx# ./sbin/nginx -tnginx: the configuration file /opt/modules/openresty/nginx/conf/nginx.conf syntax is oknginx: configuration file /opt/modules/openresty/nginx/conf/nginx.conf test is successful
启动 Nginx 或者 重新 Nginx 加载配置# 启动 Nginx# /opt/modules/openresty/nginx/sbin/nginx
# 重新 Nginx 加载配置# /opt/modules/openresty/nginx/sbin/nginx -s reload
访问 http://ci-server/lua

创建 Lua 脚本测试文件 test.lua# cd /opt/modules/openresty/nginx/conf# mkdir lua# vi lua/test.luangx.say("hello world");
修改 lua.conf# /opt/modules/openresty/nginx/conf# vi lua.confserver {    listen       80;    server_name  _;    location /lua {        default_type 'text/html';        # content_by_lua 'ngx.say("hello world")';  去掉，引入 Lua 脚本文件        content_by_lua_file conf/lua/test.lua;    }}
# 检测修改的配置是否正常# cd /opt/modules/openresty/nginx# ./sbin/nginx -tnginx: the configuration file /opt/modules/openresty/nginx/conf/nginx.conf syntax is oknginx: configuration file /opt/modules/openresty/nginx/conf/nginx.conf test is successful
# ./sbin/nginx -s reload    # 重新加载配置
查看异常日志# tail -f /opt/modules/openresty/nginx/logs/error.log2018/05/10 20:04:56 [emerg] 23754#0: bind() to 0.0.0.0:80 failed (98: Address already in use)2018/05/10 20:04:56 [emerg] 23754#0: bind() to 0.0.0.0:80 failed (98: Address already in use)2018/05/10 20:04:56 [emerg] 23754#0: bind() to 0.0.0.0:80 failed (98: Address already in use)2018/05/10 20:04:56 [emerg] 23754#0: bind() to 0.0.0.0:80 failed (98: Address already in use)2018/05/10 20:04:56 [emerg] 23754#0: bind() to 0.0.0.0:80 failed (98: Address already in use)2018/05/10 20:04:56 [emerg] 23754#0: still could not bind()2018/05/10 20:46:16 [notice] 23890#0: signal process started2018/05/10 20:48:25 [notice] 23902#0: signal process started2018/05/10 20:48:29 [error] 23903#0: *1 open() "/opt/modules/openresty/nginx/html/favicon.ico" failed (2: No such file or directory), client: 192.168.242.1, server: _, request: "GET /favicon.ico HTTP/1.1", host: "ci-server", referrer: "http://ci-server/lua"2018/05/10 20:56:22 [notice] 23925#0: signal process started