Nginx Lua 根据参数请求转发

青旅半醒 2022-09-12 12:55 248阅读 0赞

# 环境安装 #

mkdir /usr/local/LuaJIT 
    cd /usr/local/LuaJIT 
    wget http://luajit.org/download/LuaJIT-2.0.2.tar.gz
    tar -xvf LuaJIT-2.0.2.tar.gz
    
    export LUAJIT_LIB=/usr/local/lib
    export LUAJIT_INC=/usr/local/include/luajit-2.0
    
    mkdir /usr/local/nginx
    cd /usr/local/nginx
    wget https://github.com/simpl/ngx_devel_kit/archive/v0.3.0.tar.gz
    wget https://github.com/openresty/lua-nginx-module/archive/v0.10.9rc7.tar.gz
    wget http://nginx.org/download/nginx-1.12.1.tar.gz 
    tar -xvf v0.3.0.tar.gz
    tar -xvf v0.10.9rc7.tar.gz
    tar -xvf nginx-1.12.1.tar.gz
    
    cd nginx-1.12.1
    ./configure --prefix=/usr/local/nginx --add-module=../ngx_devel_kit-0.3.0 --add-module=../lua-nginx-module-0.10.9rc7
    
    make 
    make install

# 验证 #

vi conf/nginx.conf
    
    location /hello{
            default_type 'text/plain';
            content_by_lua 'ngx.say("hello,lua")';
        }
    
    
    # 启动
    sbin/nginx 
    
    # 验证，返回 hello,lua 安装成功
    curl 127.0.0.1:80/hello

# nginx lua 转发 #

location /aa {
                internal;
                default_type 'text/plain';
                content_by_lua 'ngx.say("AAAAA")';
            }
     
           location /bb {
                internal;
                default_type 'text/plain';
                content_by_lua 'ngx.say("BBBBB")';
            }
    
    
            location /dis {
                 content_by_lua_file "lua/dis.lua";
             }

# lua脚本 dis.lua
    
    local request_method = ngx.var.request_method
    local arg=nil
    if request_method == "GET" then
             arg = ngx.req.get_uri_args()['name']
    elseif request_method == "POST" then
             ngx.req.read_body()
             arg = ngx.req.get_post_args()['name']
    end
    
    if arg == "gg" then
        ngx.exec('/aa')
    else
        ngx.exec('/bb')

# 测试
    curl 127.0.0.1:80/dis?name=gg
    curl 127.0.0.1:80/dis?name=mm
    curl 127.0.0.1:80/dis