由于决定用couthDB做我的默认数据库,于是用到http.request,但请求死活发不出去

定位到1144行

// require("http").request(options, cb)
 function ClientRequest(options, cb) {
  var self = this;
  OutgoingMessage.call(self);

  self.agent = options.agent === undefined ? globalAgent : options.agent;//是否使用代理

  var defaultPort = options.defaultPort || 80;

  var port = options.port || defaultPort;
  var host = options.hostname || options.host || 'localhost';

  if (options.setHost === undefined) {
    var setHost = true;
  }

  self.socketPath = options.socketPath;

  var method = self.method = (options.method || 'GET').toUpperCase();
  self.path = options.path || '/';
  if (cb) {
    self.once('response', cb);
  }

  if (!Array.isArray(options.headers)) {
    if (options.headers) {
      var keys = Object.keys(options.headers);
      for (var i = 0, l = keys.length; i 

没有结果,这只是一个类,继续


exports.request = function(options, cb) {
  if (typeof options === 'string') {
    options = url.parse(options);
  }

  if (options.protocol && options.protocol !== 'http:') {
    throw new Error('Protocol:' + options.protocol + ' not supported.');
  }

  return new ClientRequest(options, cb);
};

exports.get = function(options, cb) {
  var req = exports.request(options, cb);
  req.end();
  return req;
};

发现http.get比http.request唯一要多做的是加了个req.end(),崩溃!

另,此回调果真只有一个参数,即http.createServer(function(req, res) {})的第二个参数一样!

我们只要加个end就可以让程序运行了!(要先安装与启到couthDB)

var http = require('http');

var options = {
    port: 5984,
    method: 'GET'
};
//这个回调果真只有一个参数,即http.createServer(function(req, res) {})
var req = http.request(options, function(res) {
    console.log('STATUS: ' + res.statusCode);
    console.log('HEADERS: ' + JSON.stringify(res.headers));
    res.setEncoding('utf8');
    var body = ""
    res.on('data', function (chunk) {
        body += chunk
    });
    res.once("end", function(){
        var json = JSON.parse(body);
        console.log(json)
    })
});
req.end()
req.on('error', function(e) {
  console.log('problem with request: ' + e.message);
});

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