NoSuchElementException：no such element：Unable to locate element：{“method”：“xpath”，“selector”：“html/body/form/input [1]”}

Question

我收到错误消息：

NoSuchElementException异常：没有这样的元件：无法找到元素： { “方法”： “的xpath”， “选择器”： “HTML /体/形式/输入[1]”}

当我尝试运行下面的代码。 而xpath是正确的，我已经双重检查

package Package; 

import org.openqa.selenium.By; 
import org.openqa.selenium.WebDriver; 
import org.openqa.selenium.WebElement; 
import org.openqa.selenium.chrome.ChromeDriver; 
//import org.openqa.selenium.firefox.FirefoxDriver; 

public class Selenium1 { 

    public static void main(String[] args) throws InterruptedException { 
    System.setProperty("webdriver.chrome.driver","C:/chromedriver.exe"); 
    WebDriver driver = new ChromeDriver(); 
    driver.get("https://www.w3schools.com/Html/tryit.asp?filename=tryhtml_checkbox"); 
    WebElement ele =driver.findElement(By.xpath("html/body/form/input[1]")); 
    boolean displayedstatus = ele.isDisplayed(); 
    System.out.println("The display status :"+displayedstatus); 

    boolean enablestatus = ele.isEnabled(); 
    System.out.println("The enable status :"+enablestatus); 

    boolean selectedstatus = ele.isSelected(); 
    System.out.println("The selected status :"+selectedstatus); 

    ele.click(); 
    selectedstatus = ele.isSelected(); 
    System.out.println("The selected status :"+selectedstatus); 

    } 
} 

Answer 1

如果要处理两个中的一个复选框，你需要切换到iframe，然后再搜索元素。

​​

如果以后要处理外iframe元素，你可能需要与

driver.switchTo().defaultContent(); 

Answer 2

切换回当你尝试搜索的iframe内的元素，你必须有切换焦点到您正在处理的iframe。

搜索的iframe中的元素之前，试试这个：

driver.switchTo().frame(driver.findElement(By.name("iframeTitle"))); 

在这种情况下，iframe的标题是：iframeResult

下面是代码：

import org.openqa.selenium.By; 
import org.openqa.selenium.WebDriver; 
import org.openqa.selenium.WebElement; 
import org.openqa.selenium.chrome.ChromeDriver; 
//import org.openqa.selenium.firefox.FirefoxDriver; 

public class Selenium1 { 

    public static void main(String[] args) throws InterruptedException { 
    System.setProperty("webdriver.chrome.driver","C:/chromedriver.exe"); 
    WebDriver driver = new ChromeDriver(); 
    driver.get("https://www.w3schools.com/Html/tryit.asp?filename=tryhtml_checkbox"); 

    //switching focus to iframe 
    driver.switchTo().frame(driver.findElement(By.name("iframeResult"))); 

    WebElement ele =driver.findElement(By.xpath("html/body/form/input[1]")); 
    boolean displayedstatus = ele.isDisplayed(); 
    System.out.println("The display status :"+displayedstatus); 

    boolean enablestatus = ele.isEnabled(); 
    System.out.println("The enable status :"+enablestatus); 

    boolean selectedstatus = ele.isSelected(); 
    System.out.println("The selected status :"+selectedstatus); 

    ele.click(); 
    selectedstatus = ele.isSelected(); 
    System.out.println("The selected status :"+selectedstatus); 



    } 

}