xpath - HtmlUnit getByXpath returns null -


i coding groovy, however, don't believe language specific set of questions.

i have 2 questions

first question

i've run issue while using htmlunit. telling me trying grab null.

the page i'm testing on is: http://browse.deviantart.com/resources/applications/psbrushes/?order=9&offset=0#/dbwam4

my code:

client = new webclient(browserversion.firefox_3) client.javascriptenabled = false  page = client.getpage(url)  //coming null title = page.getbyxpath("//html/body/div[4]/div/div[3]/div/div/div/div/div/div/div/div/div/div/h1/a")  println title

this prints out: []

is because page uses onclick()? if so, how around that? enabling javascript creates mess in cmd prompt.

second question

i wanting image having trouble because when attempt xpath (via firebug) shows as: //*[@id="gmi-resviewsizer_img"]

how handle that?

first answer: 

/html/body/div[3]/div/div[3]/div/div/div/div/div/div/div/div/div/div/h1/a

your xpath off 1 in predicate filter 4th div of body, should 3rd div. appears html site can/does change when had origionally snagged xpath using firebug. may need adjust xpath accommodate potential change , less sensitive differences in document structure.

maybe this:

/html/body//div/h1/a

second answer: xpath listed work. may odd/short(and may not efficient), // starts @ root node , looks throughout every node in tree, * matches on element(to include img) , [] predicate filter restricts have id attribute who's value equals "gmi-resviewsizer_img".

there many other options xpaths work well. depend on how html structure changes. 1 works page referenced select img:

/html/body/div/div/div/div/img[1]

Comments

Post a Comment

Popular posts from this blog

asp.net - repeatedly call AddImageUrl(url) to assemble pdf document -

i'm using abcpdf , i'm curious if can recursively call addimageurl() function assemble pdf document compile multiple urls? something like: int pagecount = 0; int theid = thedoc.addimageurl("http://stackoverflow.com/search?q=abcpdf+footer+page+x+out+of+", true, 0, true); //assemble document while (thedoc.chainable(theid)) { thedoc.page = thedoc.addpage(); theid = thedoc.addimagetochain(theid); } pagecount = thedoc.pagecount; console.writeline("1 document page count:" + pagecount); //flatten document (int = 1; <= pagecount; i++) { thedoc.pagenumber = i; thedoc.flatten(); } //now try again theid = thedoc.addimageurl("http://stackoverflow.com/questions/1980890/pdf-report-generation", true, 0, true); //assemble document while (thedoc.chainable(theid)) { thedoc.page = thedoc.addpage(); theid = thedoc.addimagetoc...
Read more

java - Android recognize cell phone with keyboard or not? -

in android app, want detect user's device if device has keyboard(like motorola milestone) , show corresponding user interface. guys know how that? ! regards justicepenny http://developer.android.com/reference/android/content/res/configuration.html public int keyboard the kind of keyboard attached device. 1 of: keyboard_nokeys, keyboard_qwerty, keyboard_12key. that's it!
Read more

iphone - How would you achieve a LED Scrolling effect? -

how achieve led scrolling effect example below? led sign - led ticker emulator iphone , ipad http://img.skitch.com/20101201-rsfh4p1bajb1wp94k466pdpiuj.preview.jpg sometimes remunerates comment in other posts :) have put code you, should implement font '8pin matrix' realistic feeling. uilabel *label; - (void)viewdidload { [super viewdidload]; label = [[uilabel alloc]initwithframe:cgrectmake(10, 50, 300, 20)]; label.font = [uifont fontwithname:@"courier-bold" size:16.0]; label.backgroundcolor = [uicolor blackcolor]; label.textcolor = [uicolor greencolor]; label.linebreakmode = uilinebreakmodecharacterwrap; // otherwise "…" label.text = @"this led text scrolled "; // blanks space between [self.view addsubview:label]; [nstimer scheduledtimerwithtimeinterval:0.12f target:self selector:@selector(scrolllabel) use...
Read more