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问答 利用openresty中的http模块发送get请求问题【ip和域名请求结果不一样】
发布于 2809天前 作者 qq_82c31c72 9464 次浏览 复制 上一个帖子 下一个帖子
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local http = require "http"
local httpc = http.new()

token = "abc123"
out_trade_no = "456"

--url = "http://【【IP地址】】/Control_center/api.php/Sself/get?token="..token.."&out_trade_no="..out_trade_no

url = "http://【【域名】】/Control_center/api.php/Sself/get?token="..token.."&out_trade_no="..out_trade_no

local res, err = httpc:request_uri(url, {
method = "GET",
headers = {
["Content-Type"] = "application/x-www-form-urlencoded",
}
})

if not res then
ngx.say("failed to request: ", err)
return
end

ngx.status = res.status

for k,v in pairs(res.headers) do
ngx.say(k..'----'..v)
end

ngx.say(res.body)

结果:
用ip拼接的地址,返回正常的数据
用域名拼接的地址,返回的 no resolver defined to resolve 域名 比如 "www.baidu.com"
我配置过resolver 8.8.8.8; 结果还是一样

nginx.conf配置文件
#user nobody;
worker_processes 1; #nginx worker 数量

error_log logs/error.log;

error_log logs/error.log notice;

error_log logs/error.log info;

pid logs/nginx.pid;

events {
worker_connections 1024;
}

http {
resolver 223.5.5.5 223.6.6.6 1.2.4.8 114.114.114.114 valid=3600s;
include mime.types;
default_type application/octet-stream;

#log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
#                  '$status $body_bytes_sent "$http_referer" '
#                  '"$http_user_agent" "$http_x_forwarded_for"';

lua_package_path "/usr/local/openresty/lualib/resty/?.lua;;";
lua_package_cpath "/usr/local/openresty/lualib/resty/?.so;;";
include /usr/local/openresty/nginx/html/Control_center/c_c.conf;

#access_log  logs/access.log  main;

sendfile        on;
#tcp_nopush     on;

#keepalive_timeout  0;
keepalive_timeout  65;

#gzip  on;

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/html';
        content_by_lua 'ngx.say("Hello Lua!")';
    }


    #error_page  404              /404.html;

    # redirect server error pages to the static page /50x.html
    #
    error_page   500 502 503 504  /50x.html;
    location = /50x.html {
        root   html;
    }

    # proxy the PHP scripts to Apache listening on 127.0.0.1:80
    #
    #location ~ \.php$ {
    #    proxy_pass   http://127.0.0.1;
    #}

    # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
    #
    #location ~ \.php$ {
    #    root           html;
    #    fastcgi_pass   127.0.0.1:9000;
    #    fastcgi_index  index.php;
    #    fastcgi_param  SCRIPT_FILENAME  /scripts$fastcgi_script_name;
    #    include        fastcgi_params;
    #}

    # deny access to .htaccess files, if Apache's document root
    # concurs with nginx's one
    #
    #location ~ /\.ht {
    #    deny  all;
    #}
}

# another virtual host using mix of IP-, name-, and port-based configuration

# server {
    # listen       8000;
    # listen       somename:8080;
    # server_name  somename  alias  another.alias;

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

# HTTPS server
#
#server {
#    listen       443 ssl;
#    server_name  localhost;

#    ssl_certificate      cert.pem;
#    ssl_certificate_key  cert.key;

#    ssl_session_cache    shared:SSL:1m;
#    ssl_session_timeout  5m;

#    ssl_ciphers  HIGH:!aNULL:!MD5;
#    ssl_prefer_server_ciphers  on;

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

}

3 回复

我测试的配置, 使用的是 https://github.com/liseen/lua-resty-http

user  root;
worker_processes  2;


events {
    worker_connections  1024;
}


http {
    include       mime.types;
    default_type  application/octet-stream;

    server {
        listen       8888;
        server_name  localhost any.nutz.cn;
        resolver 8.8.8.8;
        location / {
                content_by_lua "
                local http = require \"resty.http\"
                local httpc = http.new()
                local ok, code, headers, status, body  = httpc:request({url=\"http://www.baidu.com\", method = \"GET\"})
                if not ok then
                    ngx.say(\"failed to request: \", code)
                return
                end

                ngx.status = code

                ngx.say(body)
                ";
        }
    }
}

貌似你用的是另外一个http库

resolver 223.5.5.5 223.6.6.6 1.2.4.8 114.114.114.114 valid=3600s;
这行代码有什么用撒?

定义了一堆dns服务器地址的意思吧

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