您可以通过 Selenium* 通过注入 Javascript 来访问 Google Chrome开发者工具 上的 网络面板数据
，从而提取Web应用程序UI级别的性能数据，如下所示： __ * __
- Selenium-Java代码段
driver.get("http://www.google.com"); System.out.println(driver.getTitle()); String scriptToExecute = "var performance = window.performance || window.mozPerformance || window.msPerformance || window.webkitPerformance || {}; var network = performance.getEntries() || {}; return network;"; String netData = ((JavascriptExecutor)driver).executescript(scriptToExecute).toString(); System.out.println(netData);- 提取的参数如下：
connectEnd Time when server connection is finished. connectStart Time just before server connection begins. domComplete Time just before document readiness completes. domContentLoadedEventEnd Time after DOMContentLoaded event completes. domContentLoadedEventStart Time just before DOMContentLoaded starts. domInteractive Time just before readiness set to interactive. domLoading Time just before readiness set to loading. domainLookupEnd Time after domain name lookup. domainLookupStart Time just before domain name lookup. fetchStart Time when the resource starts being fetched. loadEventEnd Time when the load event is complete. loadEventStart Time just before the load event is fired. navigationStart Time after the previous document begins unload. redirectCount Number of redirects since the last non-redirect. redirectEnd Time after last redirect response ends. redirectStart Time of fetch that initiated a redirect. requestStart Time just before a server request. responseEnd Time after the end of a response or connection. responseStart Time just before the start of a response. timing Reference to a performance timing object. navigation Reference to performance navigation object. performance Reference to performance object for a window. type Type of the last non-redirect navigation event. unloadEventEnd Time after the previous document is unloaded. unloadEventStartTime just before the unload event is fired.
控制台输出：
[{redirectCount=0, enpredBodySize=221323, unloadEventEnd=0, responseEnd=2862.8000000000006, domainLookupEnd=1504.42, unloadEventStart=0, domContentLoadedEventStart=4210.570000000001, type=navigate, depredBodySize=221323, duration=8536.735, redirectStart=0, connectEnd=1894.2450000000001, toJSON={}, requestStart=1901.1250000000002, startTime=0, fetchStart=2863.1150000000002, domContentLoadedEventEnd=4217.22, entryType=navigation, workerStart=0, responseStart=2043.73, domInteractive=4210.525000000001, domComplete=8508.945000000002, domainLookupStart=1504.42, redirectEnd=0, transferSize=221894, connectStart=1504.42, loadEventStart=8510.7, secureConnectionStart=1549.4750000000001, name=http://www.google.com/, nextHopProtocol=h2, initiatorType=navigation, loadEventEnd=8536.735}, {enpredBodySize=2623, entryType=resource, responseEnd=3084.8050000000003, workerStart=0, responseStart=2949.635, domainLookupEnd=2896.7950000000005, domainLookupStart=2896.7950000000005, redirectEnd=0, depredBodySize=2623, duration=188.00999999999976, transferSize=2795, redirectStart=0, connectEnd=2896.7950000000005, toJSON={}, connectStart=2896.7950000000005, requestStart=2898.8500000000004, secureConnectionStart=0, name=https://www.google.co.in/logos/doodles/2018/doodle-snow-games-day-7-5009413877268480.2-s.png, startTime=2896.7950000000005, fetchStart=2896.7950000000005, nextHopProtocol=h2, initiatorType=img}, {enpredBodySize=0, entryType=resource, responseEnd=3686.665, workerStart=0, responseStart=0, domainLookupEnd=0, domainLookupStart=0, redirectEnd=0, depredBodySize=0, duration=789.3299999999995, transferSize=0, redirectStart=0, connectEnd=0, toJSON={}, connectStart=0, requestStart=0, secureConnectionStart=0, name=https://www.gstatic.com/external_hosted/createjs/createjs-2015.11.26.min.js, startTime=2897.3350000000005, fetchStart=2897.3350000000005, nextHopProtocol=h2, initiatorType=script}, {enpredBodySize=0, entryType=resource, responseEnd=3129.655, workerStart=0, responseStart=0, domainLookupEnd=0, domainLookupStart=0, redirectEnd=0, depredBodySize=0, duration=209.14999999999964, transferSize=0, redirectStart=0, connectEnd=0, toJSON={}, connectStart=0, requestStart=0, secureConnectionStart=0, name=https://ssl.gstatic.com/gb/images/i1_1967ca6a.png, startTime=2920.5050000000006, fetchStart=2920.5050000000006, nextHopProtocol=h2, initiatorType=css}, {duration=0, entryType=paint, toJSON={}, name=first-paint, startTime=3089.57}, {duration=0, entryType=paint, toJSON={}, name=first-contentful-paint, startTime=3089.5750000000003}, {enpredBodySize=11842, entryType=resource, responseEnd=3260.3000000000006, workerStart=0, responseStart=3163.4650000000006, domainLookupEnd=3094.1400000000003, domainLookupStart=3094.1400000000003, redirectEnd=0, depredBodySize=11842, duration=166.1600000000003, transferSize=11956, redirectStart=0, connectEnd=3094.1400000000003, toJSON={}, connectStart=3094.1400000000003, requestStart=3095.53, secureConnectionStart=0, name=https://www.google.co.in/logos/2018/snowgames_luge/cta.png, startTime=3094.1400000000003, fetchStart=3094.1400000000003, nextHopProtocol=h2, initiatorType=css}, {enpredBodySize=232500, entryType=resource, responseEnd=6086.695000000001, workerStart=0, responseStart=3776.0950000000003, domainLookupEnd=3728.21, domainLookupStart=3728.21, redirectEnd=0, depredBodySize=740604, duration=2358.4850000000006, transferSize=232769, redirectStart=0, connectEnd=3728.21, toJSON={}, connectStart=3728.21, requestStart=3729.3250000000003, secureConnectionStart=0, name=https://www.google.co.in/logos/2018/snowgames_luge/snowgames_luge18.2.js, startTime=3728.21, fetchStart=3728.21, nextHopProtocol=h2, initiatorType=script}, {enpredBodySize=0, entryType=resource, responseEnd=7080.765, workerStart=0, responseStart=7079.8150000000005, domainLookupEnd=4210.260000000001, domainLookupStart=4210.260000000001, redirectEnd=0, depredBodySize=0, duration=2870.504999999999, transferSize=46, redirectStart=0, connectEnd=4210.260000000001, toJSON={}, connectStart=4210.260000000001, requestStart=4211.54, secureConnectionStart=0, name=https://www.google.co.in/gen_204?s=webaft&atyp=csi&ei=_q6CWojELMLuvASp6ZEY&rt=wsrt.2885,aft.1324,prt.1324, startTime=4210.260000000001, fetchStart=4210.260000000001, nextHopProtocol=h2, initiatorType=beacon}, {enpredBodySize=146393, entryType=resource, responseEnd=7750.4400000000005, workerStart=0, responseStart=6089.950000000001, domainLookupEnd=4218.745, domainLookupStart=4218.745, redirectEnd=0, depredBodySize=421665, duration=3531.6950000000006, transferSize=146605, redirectStart=0, connectEnd=4218.745, toJSON={}, connectStart=4218.745, requestStart=4219.87, secureConnectionStart=0, name=https://www.google.co.in/xjs/_/js/k=xjs.s.en.ce3a-RKhSpw.O/m=sx,sb,cdos,cr,elog,hsm,jsa,r,d,csi/am=wCL0eMEBiP8PAUWiFQQWIE0wDA0/rt=j/d=1/t=zcms/rs=ACT90oGXoKgamzhHqIk5RIw3HVermJmYow, startTime=4218.745, fetchStart=4218.745, nextHopProtocol=h2, initiatorType=script}, {enpredBodySize=0, entryType=resource, responseEnd=5235.985000000001, workerStart=0, responseStart=0, domainLookupEnd=0, domainLookupStart=0, redirectEnd=0, depredBodySize=0, duration=816.4299999999994, transferSize=0, redirectStart=0, connectEnd=0, toJSON={}, connectStart=0, requestStart=0, secureConnectionStart=0, name=https://www.gstatic.com/og/_/js/k=og.og2.en_US.oN1DeTh5DCc.O/rt=j/m=def/exm=in,fot/d=1/ed=1/rs=AA2YrTtvVAie43QBzx5aLGc9xwmpprbMfQ, startTime=4419.555000000001, fetchStart=4419.555000000001, nextHopProtocol=h2, initiatorType=script}, {enpredBodySize=0, entryType=resource, responseEnd=7618.695000000001, workerStart=0, responseStart=0, domainLookupEnd=0, domainLookupStart=0, redirectEnd=0, depredBodySize=0, duration=2331.785, transferSize=0, redirectStart=0, connectEnd=0, toJSON={}, connectStart=0, requestStart=0, secureConnectionStart=0, name=https://apis.google.com/_/scs/abc-static/_/js/k=gapi.gapi.en.41Z8rKx1XQQ.O/m=gapi_iframes,googleapis_client,plusone/rt=j/sv=1/d=1/ed=1/am=AAE/rs=AHpOoo-9aMm3x1MgiL0Q16Hn9-7ySAbiAQ/cb=gapi.loaded_0, startTime=5286.910000000001, fetchStart=5286.910000000001, nextHopProtocol=h2, initiatorType=script}, {enpredBodySize=33155, entryType=resource, responseEnd=8232.415, workerStart=0, responseStart=7961.63, domainLookupEnd=7909.375000000001, domainLookupStart=7909.375000000001, redirectEnd=0, depredBodySize=101433, duration=323.03999999999996, transferSize=33289, redirectStart=0, connectEnd=7909.375000000001, toJSON={}, connectStart=7909.375000000001, requestStart=7911.31, secureConnectionStart=0, name=https://www.google.co.in/xjs/_/js/k=xjs.s.en.byi87tp8hFQ.O/m=aa,abd,async,dvl,foot,fpe,ipv6,lu,m,mu,sf,sonic,spch,d3l,udlg/am=wCL0eMEBiP8PAUWiFQQWIE0wDA0/exm=sx,sb,cdos,cr,elog,hsm,jsa,r,d,csi/rt=j/d=1/ed=1/t=zcms/rs=ACT90oHN7XGqdfNtn5tbonkyQwGSzrxogw?xjs=s1, startTime=7909.375000000001, fetchStart=7909.375000000001, nextHopProtocol=h2, initiatorType=script}, {enpredBodySize=0, entryType=resource, responseEnd=8265.45, workerStart=0, responseStart=0, domainLookupEnd=0, domainLookupStart=0, redirectEnd=0, depredBodySize=0, duration=355.22500000000036, transferSize=0, redirectStart=0, connectEnd=0, toJSON={}, connectStart=0, requestStart=0, secureConnectionStart=0, name=https://www.google.com/textinputassistant/tia.png, startTime=7910.225, fetchStart=7910.225, nextHopProtocol=h2, initiatorType=img}, {enpredBodySize=469, entryType=resource, responseEnd=8264.44, workerStart=0, responseStart=8234.305, domainLookupEnd=7910.400000000001, domainLookupStart=7910.400000000001, redirectEnd=0, depredBodySize=469, duration=354.03999999999996, transferSize=559, redirectStart=0, connectEnd=7910.400000000001, toJSON={}, connectStart=7910.400000000001, requestStart=7912.325000000001, secureConnectionStart=0, name=https://www.google.co.in/logos/2018/snowgames_luge/main-sprite.png, startTime=7910.400000000001, fetchStart=7910.400000000001, nextHopProtocol=h2, initiatorType=img}]
