3
以下是PhantomJS脚本的一个片段。它跟踪AJAXd网页上的动态内容。轨道()被调用一次,但由于某些原因page.open()被调用3次函数调用一次,但多次触发
function track(url){
console.log('Tracking',url);
var page = require('webpage').create();
console.log('check2')
if(page){
console.log('check4');
page.open(url, function (status) {
console.log('check3');
if (status !== 'success') {
console.log('Unable to load the address!');
setTimeout(function(){start();},1000);
setTimeout(function(){page.release();},5000);
}
else {
console.log('check');
var i = 0;
var last_winner = false;
var logged_once = false;
var interval = false;
if(!interval){
interval = setInterval(function(){
var scraping = scrape(page);
var date = new Date();
var time = date.getTime();
if(scraping){/*Bunch of console logs*/}
else{
console.log('Bidding ended');
clearInterval(interval);
setTimeout(function(){start();},1000);
setTimeout(function(){page.release();},5000);
}
scraping = false;
},1000);
};
};
});
};
};
记录以下控制台:
Tracking http://www.google.com
check2
check4
check3
check
check3
check
check3
check
出于某种原因,我无法弄清楚,page.open()被调用3次。
我揣摩,哪些页面对象真的是:'的console.log(页);' – Corkscreewe 2012-05-10 18:04:25
尝试改变的console.log( 'check3');到console.log(status);并看看你得到了什么。我有一种感觉,它在处理http状态代码时通过open()几次循环? – 2012-05-23 20:08:35