By

java.lang.Object
- org.openqa.selenium.By

直接已知子类:

By.ByClassName, By.ByCssSelector, By.ById, By.ByLinkText, By.ByName, By.ByPartialLinkText, By.ByTagName, By.ByXPath, ByAll, ByChained, ByIdOrName
```
public abstract class By
extends Object
```
Mechanism used to locate elements within a document. In order to create your own locating mechanisms, it is possible to subclass this class and override the protected methods as required, though it is expected that all subclasses rely on the basic finding mechanisms provided through static methods of this class: public WebElement findElement(WebDriver driver) { WebElement element = driver.findElement(By.id(getSelector())); if (element == null) element = driver.findElement(By.name(getSelector()); return element; }

嵌套类概要

嵌套类
限定符和类型	类和说明
`static class`	`By.ByClassName`
`static class`	`By.ByCssSelector`
`static class`	`By.ById`
`static class`	`By.ByLinkText`
`static class`	`By.ByName`
`static class`	`By.ByPartialLinkText`
`static class`	`By.ByTagName`
`static class`	`By.ByXPath`

构造器概要

构造器
构造器和说明

By()

构造器
构造器和说明
`By()`

方法概要

所有方法静态方法实例方法抽象方法具体方法
限定符和类型	方法和说明
`static By`	`className(String className)` Finds elements based on the value of the "class" attribute.
`static By`	`cssSelector(String selector)` Finds elements via the driver's underlying W3 Selector engine.
`boolean`	`equals(Object o)`
`WebElement`	`findElement(SearchContext context)` Find a single element.
`abstract List<WebElement>`	`findElements(SearchContext context)` Find many elements.
`int`	`hashCode()`
`static By`	`id(String id)`
`static By`	`linkText(String linkText)`
`static By`	`name(String name)`
`static By`	`partialLinkText(String linkText)`
`static By`	`tagName(String name)`
`String`	`toString()`
`static By`	`xpath(String xpathExpression)`

从类继承的方法 java.lang.Object
getClass, notify, notifyAll, wait, wait, wait

- 构造器详细资料
  - By
```
public By()
```
- 方法详细资料
  - id
```
public static By id(String id)
```
    参数:
    
    id - The value of the "id" attribute to search for
    
    返回:
    
    a By which locates elements by the value of the "id" attribute.
  - linkText
```
public static By linkText(String linkText)
```
    参数:
    
    linkText - The exact text to match against
    
    返回:
    
    a By which locates A elements by the exact text it displays
  - partialLinkText
```
public static By partialLinkText(String linkText)
```
    参数:
    
    linkText - The text to match against
    
    返回:
    
    a By which locates A elements that contain the given link text
  - name
```
public static By name(String name)
```
    参数:
    
    name - The value of the "name" attribute to search for
    
    返回:
    
    a By which locates elements by the value of the "name" attribute.
  - tagName
```
public static By tagName(String name)
```
    参数:
    
    name - The element's tagName
    
    返回:
    
    a By which locates elements by their tag name
  - xpath
```
public static By xpath(String xpathExpression)
```
    参数:
    
    xpathExpression - The xpath to use
    
    返回:
    
    a By which locates elements via XPath
  - className
```
public static By className(String className)
```
    Finds elements based on the value of the "class" attribute. If an element has many classes then this will match against each of them. For example if the value is "one two onone", then the following "className"s will match: "one" and "two"
    
    参数:
    
    className - The value of the "class" attribute to search for
    
    返回:
    
    a By which locates elements by the value of the "class" attribute.
  - cssSelector
```
public static By cssSelector(String selector)
```
    Finds elements via the driver's underlying W3 Selector engine. If the browser does not implement the Selector API, a best effort is made to emulate the API. In this case, we strive for at least CSS2 support, but offer no guarantees.
    
    参数:
    
    selector - css expression
    
    返回:
    
    a By which locates elements by CSS.
  - findElement
```
public WebElement findElement(SearchContext context)
```
    Find a single element. Override this method if necessary.
    
    参数:
    
    context - A context to use to find the element
    
    返回:
    
    The WebElement that matches the selector
  - findElements
```
public abstract List<WebElement> findElements(SearchContext context)
```
    Find many elements.
    
    参数:
    
    context - A context to use to find the element
    
    返回:
    
    A list of WebElements matching the selector
  - equals
```
public boolean equals(Object o)
```
    覆盖:
    
    equals 在类中 Object
  - hashCode
```
public int hashCode()
```
    覆盖:
    
    hashCode 在类中 Object
  - toString
```
public String toString()
```
    覆盖:
    
    toString 在类中 Object

类 By

嵌套类概要

构造器概要

方法概要

从类继承的方法 java.lang.Object

构造器详细资料

By

方法详细资料

id

linkText

partialLinkText

name

tagName

xpath

className

cssSelector

findElement

findElements

equals

hashCode

toString