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Sails.jsとPhantomJSを使ったスクレイピングをする準備をする

Last updated at Posted at 2015-04-21

したこと

  • SailsでとりあえずPhantomJSでページをとってみた。
# sails new landload
# sails generate api property
# npm install phantomjs
config/models.js
module.exports.models = {
    migrate: 'safe'
};
controllers/PropertyController.js
var phantom = require('phantom');

function CreateUrlArray(str) {
  var array = [];

  str.match(/.*(\[(\d+)-(\d+)\]).*/);

  if (!RegExp.$1 || !RegExp.$2 || !RegExp.$3) {
    return array;
  }
  else {
    var replace = RegExp.$1;
    var start = Number(RegExp.$2);
    var end = Number(RegExp.$3);

    for (var i = 0; i <= end - start; i++) {
      array[i] = str.replace(replace, (start + i).toString());
    }
    return array;
  }
};

function updateApi(req, res) {
  phantom.create(function (ph) {
    ph.createPage(function (page) {
      page.open("http://www.rakumachi.jp/syuuekibukken/area/prefecture/dimAll/?page=1&limit=100", function (status) {
        console.log("opened rakumachi? ", status);
        page.evaluate(function () {
          return document.body.textContent;
        }, function (result) {
          res.json(200, {result: result});
          ph.exit();
        });
      });
    });
  });
};

var PropertyController = {
  update: updateApi
};

module.exports = PropertyController;
models/Property.js
module.exports = {
  attributes: {
  }
};

はまったこと

  • 最新の2.0系列のPhantomJSはまだnpmからは取れないので、古い1.9系列を使うことにした。
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