错误：getaddrinfo ENOTFOUND在获取本地主机的请求时，Nodejs

Question

我正在尝试对在本地槽中运行的etcd实例做一个het请求，通过节点http模块。

的代码看起来象

'use strict'; 
const express = require('express'); 
const app = express(); 
var http = require('http'); 

const port = 10111; 

var encoded_url = encodeURI('/v2/keys/message -X GET'); 

var options = { 
    host: 'http://127.0.0.1:2379', 
    path: encoded_url 
}; 

var callback = function (response) { 
    var str = ''; 

    //another chunk of data has been recieved, so append it to `str` 
    response.on('data', function (chunk) { 
    str += chunk; 
    }); 

    //the whole response has been recieved, so we just print it out here 
    response.on('end', function() { 
    console.log(str); 
    }); 
} 

http.request(options, callback).end(); 

app.listen(port,() => { 
    console.log("server started on port " + port); 
}); 

，但我收到以下错误

Error: getaddrinfo ENOTFOUND http://127.0.0.1:2379 http://127.0.0.1:2379:80 
    at errnoException (dns.js:28:10) 
    at GetAddrInfoReqWrap.onlookup [as oncomplete] (dns.js:76:26) 

如果我让从终端我得到的结果一样卷曲的请求

卷曲http://127.0.0.1:2379/v2/keys/message -X GET

无法弄清楚什么是问题。

Answer 1

默认情况下http.request()使用端口80。

使用这个代替：

var options = { 
    protocol: 'http:', 
    host: '127.0.0.1', 
    port: 2379, 
    path: encoded_url 
};