openresty(nginx)、lua、drizzle测试

# 添加MySQL配置(drizzle) 
upstream backend { 
    drizzle_server 127.0.0.1:3306 dbname=test user=root password=123456 protocol=mysql; 
    drizzle_keepalive max=200 overflow=ignore mode=single; 
}

server { 
    listen       80; 
    server_name  localhost;

    #charset koi8-r; 
    #access_log  logs/host.access.log  main;

    location / { 
        root   html; 
        index  index.html index.htm; 
    }

    location /lua { 
        default_type text/plain; 
        content_by_lua 'ngx.say("hello, lua")'; 
    }

    location /lua_redis { 
        default_type text/plain; 
        content_by_lua_file /usr/local/lua_test/redis_test.lua; 
    } 

    location /lua_mysql { 
            default_type text/plain; 
            content_by_lua_file /usr/local/lua_test/mysql_test.lua; 
    }

    location @cats-by-name { 
        set_unescape_uri $name $arg_name; 
        set_quote_sql_str $name; 
        drizzle_query 'select * from cats where name=$name'; 
        drizzle_pass backend; 
        rds_json on; 
    }

    location @cats-by-id { 
        set_quote_sql_str $id $arg_id; 
        drizzle_query 'select * from cats where id=$id'; 
        drizzle_pass backend; 
        rds_json on; 
    }

    location = /cats { 
        access_by_lua ' 
            if ngx.var.arg_name then 
                return ngx.exec("@cats-by-name") 
            end

            if ngx.var.arg_id then 
                return ngx.exec("@cats-by-id") 
            end 
        ';

        rds_json_ret 400 "expecting \"name\" or \"id\" query arguments"; 
    }

    # 通过url匹配出name，并编码防止注入，最后以json格式输出结果 
    location ~ '^/mysql/(.*)' { 
        set $name $1; 
        set_quote_sql_str $quote_name $name; 
        set $sql "SELECT * FROM cats WHERE name=$quote_name"; 
        drizzle_query $sql; 
        drizzle_pass backend; 
        rds_json on; 
    }

    # 查看MySQL服务状态 
    location /mysql-status { 
        drizzle_status; 
    } 
} 

$ curl 'http://127.0.0.1/lua_test' 
hello, lua

$ redis-cli set foo 'hello,lua-redis' 
OK 
$ curl 'http://127.0.0.1/lua_redis' 
hello,lua-redis

$ curl 'http://127.0.0.1/lua_mysql' 
connected to mysql. 
table cats created. 
3 rows inserted into table cats (last insert id: 1) 
result: [{"name":"Bob","id":"1"},{"name":"","id":"2"},{"name":null,"id":"3"}]

$ curl 'http://127.0.0.1/cats' 
{"errcode":400,"errstr":"expecting \"name\" or \"id\" query arguments"}

$ curl 'http://127.0.0.1/cats?name=bob' 
[{"id":1,"name":"Bob"}]

$ curl 'http://127.0.0.1/cats?id=2' 
[{"id":2,"name":""}]

$ curl 'http://127.0.0.1/mysql/bob' 
[{"id":1,"name":"Bob"}]

$ curl 'http://127.0.0.1/mysql-status' 
worker process: 32261

upstream backend 
  active connections: 0 
  connection pool capacity: 0 
  servers: 1 
  peers: 1