错误连接ECONNREFUSED

我收到这个错误,无法解决这个问题。

events.js:72

 throw er; // Unhandled 'error' event
          ^

错误:在Object.afterConnect [ascomplete](net.js:892:19)处的errnoException(net.js:901:11)处连接ECONNREFUSED

var http = require('http');


var options = {
host: 'localhost',
port: '8081',
path: '/index.htm'  
};


 var callback = function(response){

 var body = '';
 response.on('data', function(data) {
   body += data;
});

response.on('end', function() {

  console.log(body);
 });

 }

var req = http.request(options, callback);
req.end();
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