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问题:
I'm using PhantomJS to get the generated source of a web page after JavaScript DOM manipulations have taken place. This web page has JUST a
Important: This web page uses browser's localStorage to generate the page.
I want to change LocalStorage in PhantomJS before opening the page.
App.js:
var page = require('webpage').create(); page.open("https://sample.com") setTimeout(function(){ // Where you want to save it page.render("screenshoot.png") // You can access its content using jQuery var fbcomments = page.evaluate(function(){ return $("body").contents().find(".content") }) phantom.exit(); }, 1000)
回答1:
localStorage for a particular domain is only available when you open a page on that domain. You can
- open some URL on the domain you're interested in,
- change
localStorage according to your needs, - open your target URL on the same domain.
This can look like this:
page.open("https://sample.com/asdfasdf", function(){ page.evaluate(function(){ localStorage.setItem("something", "whatever"); }); page.open("https://sample.com", function(){ setTimeout(function(){ // Where you want to save it page.render("screenshoot.png") // You can access its content using jQuery var fbcomments = page.evaluate(function(){ return $("body").contents().find(".content") }) phantom.exit(); },1000) }); });
It's also possible not to open a full page in step 1. You can also use dummy page with some URL.
page.setContent("", "https://sample.com"); // doesn't actually open any page page.evaluate(function(){ localStorage.setItem("something", "whatever"); }); page.open("https://sample.com", function(){ setTimeout(function(){ // Where you want to save it page.render("screenshoot.png") // You can access its content using jQuery var fbcomments = page.evaluate(function(){ return $("body").contents().find(".content") }) phantom.exit(); }, 1000) });
回答2:
I solved my problem with Friend's Help. My solution is:
Notice: I set Timeout 10000(10 seconds) for complete load page.
var page = require('webpage').create(); page.open("https://sample.com", function(){ page.evaluate(function(){ var i = 0, oJson = jsonData, sKey; localStorage.clear(); for (; sKey = Object.keys(oJson)[i]; i++) { localStorage.setItem(sKey,oJson[sKey]) } }); page.open("https://sample.com", function(){ setTimeout(function(){ page.render("screenshoot.png") // Where you want to save it console.log(page.content); //page source // You can access its content using jQuery var fbcomments = page.evaluate(function(){ return $("body").contents().find(".content") }) phantom.exit(); },10000) }); });
