我在Google和SO网站上进行了搜索,但得到了JAVA的答案,但似乎没有得到关于node.js的答案。
我有一个需要花费一些时间才能加载的网络应用。我希望selenium程序等到页面加载后再执行一些操作。
我当前的代码如下
//dependencies
var webdriver = require('selenium-webdriver'),
util = require('util'),
_ = require('underscore');
var driver = new webdriver.Builder().withCapabilities(webdriver.Capabilities.chrome()).build();
var branchName = _.isUndefined(process.argv[3]) ? 'branch' : process.argv[3],
hostName = _.isUndefined(process.argv[2]) ? 'localhost' : process.argv[2],
appTmpl = 'http://%s/%s',
username = 'xxxx',
password = 'xxxx';
var appUrl = util.format(appTmpl, hostName, branchName);
driver.get(appUrl);
driver.findElement(webdriver.By.name("username")).sendKeys(username);
driver.findElement(webdriver.By.name("password")).sendKeys(password);
driver.findElement(webdriver.By.name("login_button")).click();
driver.quit();
我得到的错误是: C:\Work\study\selenium\node_modules\selenium-webdriver\lib\webdriver\promise.js:1643
throw error;
^
NoSuchElementError: no such element
(Session info: chrome=37.0.2062.103)
(Driver info: chromedriver=2.10.267521,platform=Windows NT 6.1 SP1 x86_64)
at new bot.Error (C:\Work\study\selenium\node_modules\selenium-webdriver\lib\atoms\error.js:109:18)
at Object.bot.response.checkResponse (C:\Work\study\selenium\node_modules\selenium-webdriver\lib\atoms\response.js:106:9)
at C:\Work\study\selenium\node_modules\selenium-webdriver\lib\webdriver\webdriver.js:277:20
at C:\Work\study\selenium\node_modules\selenium-webdriver\lib\goog\base.js:1243:15
at webdriver.promise.ControlFlow.runInNewFrame_ (C:\Work\study\selenium\node_modules\selenium-webdriver\lib\webdriver\promise.js:1539:20)
at notify (C:\Work\study\selenium\node_modules\selenium-webdriver\lib\webdriver\promise.js:362:12)
at notifyAll (C:\Work\study\selenium\node_modules\selenium-webdriver\lib\webdriver\promise.js:331:7)
at resolve (C:\Work\study\selenium\node_modules\selenium-webdriver\lib\webdriver\promise.js:309:7)
at fulfill (C:\Work\study\selenium\node_modules\selenium-webdriver\lib\webdriver\promise.js:429:5)
at C:\Work\study\selenium\node_modules\selenium-webdriver\lib\webdriver\promise.js:1406:10
==== async task ====
WebDriver.findElement(By.name("username"))
at webdriver.WebDriver.schedule (C:\Work\study\selenium\node_modules\selenium-webdriver\lib\webdriver\webdriver.js:268:15)
at webdriver.WebDriver.findElement (C:\Work\study\selenium\node_modules\selenium-webdriver\lib\webdriver\webdriver.js:711:17)
at Object.<anonymous> (C:\Work\study\selenium\test.js:15:8)
at Module._compile (module.js:456:26)
at Object.Module._extensions..js (module.js:474:10)
at Module.load (module.js:356:32)
at Function.Module._load (module.js:312:12)
at Function.Module.runMain (module.js:497:10)
at startup (node.js:119:16)
最佳答案
我偶然发现了我的问题的答案
因此,要等待元素出现,我们必须:
driver.wait(function () {
return driver.isElementPresent(webdriver.By.name("username"));
}, timeout);
关于javascript - Selenium WebDriver等到显示元素,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/25753014/