The best way to wait for page loads when using the Java bindings for WebDriver is to use the Page Object design pattern with PageFactory. This allows you to utilize the AjaxElementLocatorFactory which to put it simply acts as a global wait for all of your elements. It has limitations on elements such as drop-boxes or complex javascript transitions but it will drastically reduce the amount of code needed and speed up test times. A good example can be found in this blogpost. Basic understanding of Core Java is assumed.

http://startingwithseleniumwebdriver.blogspot.ro/2015/02/wait-in-page-factory.html

显式等待或条件等待，直到给定这个条件。

WebDriverWait wait = new WebDriverWait(wb, 60);
wait.until(ExpectedConditions.elementToBeClickable(By.name("value")));

这将等待每个web元素60秒。

使用隐式等待等待页面上的每个元素直到给定的时间。

driver.manage().timeouts().implicitlyWait(60, TimeUnit.SECONDS);

这将等待每个web元素60秒。

隐式和显式的等待更好。

但是如果你在Java中处理一个异常，那么你可以使用这个来等待页面重新加载:

Thead.sleep(1000);

如果有人使用硒化物:

public static final Long SHORT_WAIT = 5000L; // 5 seconds
$("some_css_selector").waitUntil(Condition.appear, SHORT_WAIT);

更多条件可以在这里找到: http://selenide.org/javadoc/3.0/com/codeborne/selenide/Condition.html

我使用node + selenium-webdriver(现在的版本是3.5.0)。我所做的是:

var webdriver = require('selenium-webdriver'),
    driver = new webdriver.Builder().forBrowser('chrome').build();
;
driver.wait(driver.executeScript("return document.readyState").then(state => {
  return state === 'complete';
}))

对于隐式等待，你可以使用如下代码:

driver.manage().timeouts().implicitlyWait(10, TimeUnit.SECONDS)

为了使网页等待一个特定的对象是可见的或某些条件是真实的。您可以使用网页驱动程序等羽。

//120 is maximum number of seconds to wait.
WebDriverWait wait = new WebDriverWait(driver,120);  
wait.until(ExpectedConditions.elementToBeClickable("CONDITITON"));

在Java中，另一种选择是让线程在特定的时间内休眠。

Thread.sleep(numberOfSeconds*1000); 
//This line will cause thread to sleep for seconds as variable

我创建了一个方法来简化线程。睡眠的方法

public static void wait_time(int seconds){
    try {
        Thread.sleep(seconds*1000);
        }catch (InterruptedException e) {
        // TODO Auto-generated catch block
            e.printStackTrace();
        }
}

使用wait_time(10)方法;线程将休眠10秒。