與phantomjs調用函數給出不同於從控制檯調用的結果

Question

我試圖從此page獲得NBA球員統計。有一個用戶界面按鈕，允許您將數據錶轉換爲csv，並且我試圖自動執行此過程。在引擎蓋下，它調用功能get_csv_output()。

在檢查控制檯中，get_csv_output("per_game")和get_csv_output("advanced")分別以csv格式輸出#per_game和#advanced表。

但是，當我嘗試使用phantom.js調用get_csv_output()函數時，它僅提取「per_game」表的csv數據，但不適用於「高級」表。

var page = require('webpage').create(); 
page.open('http://www.basketball-reference.com/players/a/abdulka01.html', function() { 
    var result = page.evaluate(function() { 
    return get_csv_output("per_game"); 
    }); 
    console.log(result); 
    phantom.exit() 
}); 

的這個輸出是CSV格式per_game表按預期方式。然而，當我嘗試將其更改爲get_csv_output("advanced")，

輸出Converting from PRE-Formatted to CSV does not work, please <span class=tooltip onClick="window.location.reload()">Reload</span> and then click CSV

我試圖提供一些其他表的ID作爲輸入，並per_game似乎是唯一可行的。

Answer 1

問題是解決了，現在它的工作原理：

function on_init (page){ 
page.viewportSize = {width:1600,height:900} 
page.evaluate(function(){ 
window.screen = {width:1600,height:900,availWidth:1600,availHeight:900}; 
window.innerWidth=1600; window.innerHeight=900; window.outerWidth=1600; window.outerHeight=900; 
window.navigator = { 
plugins: {length: 2, 'Shockwave Flash': {name: 'Shockwave Flash', filename: '/usr/lib/flashplugin-nonfree/libflashplayer.so', description: 'Shockwave Flash 11.2 r202', version: '11.2.202.440'}}, 
mimeTypes: {length: 2, "application/x-shockwave-flash": {description: "Shockwave Flash", suffixes: "swf", type: "application/x-shockwave-flash", enabledPlugin: {name: 'Shockwave Flash', filename: '/usr/lib/flashplugin-nonfree/libflashplayer.so', description: 'Shockwave Flash 11.2 r202', version: '11.2.202.440'}}}, 
appCodeName: "Mozilla", 
appName: "Netscape", 
appVersion: "5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2272.118 Safari/537.36", 
cookieEnabled: 1, 
languages: "en-US,en", 
language: "en", 
onLine: 1, 
doNotTrack: null, 
platform: "Linux x86_64", 
product: "Gecko", 
vendor: "Google Inc.", 
vendorSub: "", 
productSub: 20030107, 
userAgent: "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2272.118 Safari/537.36", 
geolocation: {getCurrentPosition: function getCurrentPosition(){},watchPosition: function watchPosition(){},clearWatch: function clearWatch(){}}, 
javaEnabled: function javaEnabled(){return 0} };});}; 
var page = require('webpage').create(); 
page.onInitialized=function(){on_init(page)} 
page.open('http://www.basketball-reference.com/players/a/abdulka01.html', function() { 
    var result = page.evaluate(function() { 
    return get_csv_output("advanced"); 
    }); 
    console.log(result); 
    phantom.exit() 
}); 

./phantomjs test.js >>/dev/stdout