我正在尝试使用以下代码从站点下载csv文件(广告报告).问题是,它将下载
HTML页面而不是csv文件.我不能给你的URL,因为它在登录后面,但类似的情况下,从下面的URL下载Firefox
http://www.mozilla.org/en-US/firefox/new/
这是一个GET请求,当我检查元素网络选项卡时,获取请求被取消.我是新来的Casper,不知道如何处理这样的请求.任何帮助将不胜感激
casper.then(function() {
var downloadURL = "";
this.evaluate(function() {
var downloadURL = "http://www.lijit.com"+jQuery("#dailyCSV").attr('href');
});
this.download(downloadURL,'/Users/Ujwal/Downloads/caspertests/stats.csv');
});
回应标题
Age:0 Cache-Control:max-age=0 Connection:keep-alive Content-Disposition:attachment; filename=stats.csv Content-Encoding:gzip Content-Length:1634 Content-Type:text/x-csv Date:Sat,05 Oct 2013 15:28:21 GMT Expires:Sat,05 Oct 2013 15:28:21 GMT P3P:CP="CUR ADM OUR NOR STA NID" Server:PWS/8.0.16 Vary:Accept-Encoding X-Px:ms h0-s28.p9-jfk ( h0-s62.p9-jfk),ms h0-s62.p9-jfk ( origin>CONN)
解决方法
回答我自己的问题,这里是解决方案
参考：https://github.com/knorrium/google-books-downloader/blob/master/gbd.js
//Download the daily csv
casper.then(function() {
this.click('#dailyCSV');
});
casper.on('resource.received',function (resource) {
"use strict";
if ((resource.url.indexOf("publisherCSV/?startDate=") !== -1) ) {
this.echo(resource.url);
var url,file;
url = resource.url;
file = "stats.csv";
try {
this.echo("Attempting to download file " + file);
var fs = require('fs');
casper.download(resource.url,fs.workingDirectory+'/'+file);
} catch (e) {
this.echo(e);
}
}
});
