node作为中间服务层如何发送请求(发送请求的实现方法详解)

var http = require('http'); 
var qs = require('querystring'); 
var data = { 
  a: 123, 
  time: new Date().getTime()};//这是需要提交的数据 
var content = qs.stringify(data); 
var options = { 
  hostname: '127.0.0.1', 
  port: 10086, 
  path: '/pay/pay_callback?' + content, 
  method: 'GET' 
}; 
  
var req = http.request(options, function (res) { 
  console.log('STATUS: ' + res.statusCode); 
  console.log('HEADERS: ' + JSON.stringify(res.headers)); 
  res.setEncoding('utf8'); 
  res.on('data', function (chunk) { 
    console.log('BODY: ' + chunk); 
  }); 
}); 
  
req.on('error', function (e) { 
  console.log('problem with request: ' + e.message); 
}); 
  
req.end();

var http = require('http'); 
var qs = require('querystring'); 
var post_data = { 
  a: 123, 
  time: new Date().getTime()};//这是需要提交的数据 
var content = qs.stringify(post_data); 
var options = { 
  hostname: '127.0.0.1', 
  port: 10086, 
  path: '/pay/pay_callback', 
  method: 'POST', 
  headers: { 
    'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8' 
  } 
}; 
  
var req = http.request(options, function (res) { 
  console.log('STATUS: ' + res.statusCode); 
  console.log('HEADERS: ' + JSON.stringify(res.headers)); 
  res.setEncoding('utf8'); 
  res.on('data', function (chunk) { 
    console.log('BODY: ' + chunk); 
  }); 
}); 
  
req.on('error', function (e) { 
  console.log('problem with request: ' + e.message); 
}); 
// write data to request body 
req.write(content); 
req.end();