wsjs.js

var page = require('webpage').create()

page.onInitialized = function() {
      page.evaluate(function() {
        window.callPhantom = undefined
        window._phantom = undefined
      });
}

page.customHeaders = {
    "Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8",
    "User-Agent" : 'Mozilla/5.0 (Android 4.4; Tablet; rv:41.0) Gecko/41.0 Firefox/41.0'
}

var count = 0
function jump(){
    page.evaluate(function () {
        eval("goUrl('/txnS03.do')");
    });
}


function fill(sn) {
    console.log('in fill')
    sn = typeof(sn) !== "undefined" ? sn : 11111111
    page.evaluate(function (sn) {
        document.getElementsByName("request:sn")[0].click()
        document.getElementsByName("request:sn")[0].value=sn
        document.getElementById("_searchButton").click()
    }, sn)
}

page.onPageCreated = function(newpage) {
    newpage.customHeaders = {
        "Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8",
        "User-Agent" : 'Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.7.10) Gecko/20050716 Thunderbird/1.0.6'
    }
    newpage.onInitialized = function() {
        console.log('newpage init')
          newpage.evaluate(function() {
            window.callPhantom = undefined
            window._phantom = undefined
          });
    }
    newpage.onLoadFinished = function (){
        count += 1
        newpage.render('export.png');
        console.log(count, newpage.title, newpage.url)
        //phantom.exit();
    }
}

page.onLoadFinished = function() {
    count += 1
    console.log(count, page.title, page.url)
    if (count == 2) {
        jump()
    }
    if (count == 3) {
        setTimeout(function() {
            fill()}, 2000)
    }
};

page.open('http://wsjs.saic.gov.cn/');