我有一个脚本(使用PhantomJS)来测试加载网页所需的时间。我想弄清楚的是如何写入将页面加载到.csv文件所花费的时间的结果。然后,如果我再次重新运行测试,它将另一个结果添加到.csv文件中。
代码:
var page = require('webpage').create(),
system = require('system'),
t, address;
var pageLoadArray = [];
var csvContents = "";
fs = require('fs');
if (system.args.length === 1) {
console.log('Usage: loadspeed.js <some URL>');
phantom.exit(1);
} else {
t = Date.now();
address = system.args[1];
page.open(address, function (status) {
if (status !== 'success') {
console.log('FAIL to load the address');
}
else {
t = Date.now() - t;
console.log('Page title is ' + page.evaluate(function () {
return document.title;
}));
if(t>7000){
console.log('Loading time was too long... ' + t + "msec");
pageLoadArray.push(t);
console.log(pageLoadArray.length);
console.log(pageLoadArray[0]);
//store the time value to the .csv file
phantom.exit(1);
}
else{
console.log('Loading time ' + t + ' msec');
pageLoadArray.push(t);
console.log(pageLoadArray.length);
console.log(pageLoadArray[0]);
//store the time value to the .csv file
}
}
phantom.exit();
});
}
答案 0 :(得分:5)
您可以在追加模式下使用fs模块和write(path, content, mode)
方法。
var fs = require('fs');
fs.write(filepath, content, 'a');
其中filepath
是作为字符串的文件路径,content
是包含CSV行的字符串。
类似的东西:
address+";"+(new Date()).getTime()+";"+t
答案 1 :(得分:-1)
如果您可以控制Jenkins环境,则可以使用触发下载的浏览器特定方法之一,如This Question
中建议的那样function download(strData, strFileName, strMimeType) {
var D = document,
A = arguments,
a = D.createElement("a"),
d = A[0],
n = A[1],
t = A[2] || "text/plain";
//build download link:
a.href = "data:" + strMimeType + "charset=utf-8," + escape(strData);
if (window.MSBlobBuilder) { // IE10
var bb = new MSBlobBuilder();
bb.append(strData);
return navigator.msSaveBlob(bb, strFileName);
} /* end if(window.MSBlobBuilder) */
if ('download' in a) { //FF20, CH19
a.setAttribute("download", n);
a.innerHTML = "downloading...";
D.body.appendChild(a);
setTimeout(function() {
var e = D.createEvent("MouseEvents");
e.initMouseEvent("click", true, false, window, 0, 0, 0, 0, 0, false, false, false, false, 0, null);
a.dispatchEvent(e);
D.body.removeChild(a);
}, 66);
return true;
}; /* end if('download' in a) */
//do iframe dataURL download: (older W3)
var f = D.createElement("iframe");
D.body.appendChild(f);
f.src = "data:" + (A[2] ? A[2] : "application/octet-stream") + (window.btoa ? ";base64" : "") + "," + (window.btoa ? window.btoa : escape)(strData);
setTimeout(function() {
D.body.removeChild(f);
}, 333);
return true;
}
也许您可以使用this URL SCM插件来获取下载内容 或者使用Selenium自动执行某些操作并获取下载文件