Java 通过TestNg运行代码时出错

运行以下代码时出现配置错误。因此，我无法采取进一步行动。有人能帮我运行脚本吗

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包装Flipkart

    import org.testng.annotations.Test;
    import org.testng.annotations.BeforeMethod;

    import java.util.HashMap;
    import java.util.Map;

    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.chrome.ChromeOptions;
    import org.testng.annotations.AfterMethod;

    public class report {
        WebDriver driver;
      @Test
      public void f() throws InterruptedException {

          driver.get("https://www.coopathome.ch/de/");
            Thread.sleep(2000);
            driver.findElement(By.xpath(".//*[@id='wa-badge']/span")).click();
            driver.findElement(By.xpath(".//*[@id='mastheadMyAccountLink']/span")).click();
            //driver.manage().timeouts().implicitlyWait(2000, TimeUnit.MILLISECONDS);
            Thread.sleep(2000);
            driver.findElement(By.id("j_username")).sendKeys("tinamalhotra325@gmail.com");
            driver.findElement(By.id("j_password")).sendKeys("google@123");
            driver.findElement(By.id("loginOverlaySubmitLoginFormButton")).click();
            Thread.sleep(2000);
            driver.findElement(By.xpath(".//*[@id='nav']/ul/li[7]/a/span")).click();
            Thread.sleep(2000);
            driver.findElement(By.xpath(".//*[@id='subnav--item-m_0222']/li[1]/ul[1]/li[2]/a")).click();
            Thread.sleep(2000);
            driver.findElement(By.xpath("html/body/div[3]/div/div[2]/div[2]/div/div[4]/ul/li[8]/div/div/div[3]/button")).click();
            Thread.sleep(2000);
            driver.findElement(By.xpath("html/body/div[3]/div/div[2]/div[2]/div/div[4]/ul/li[8]/div/div/div[3]/div/div/button[2]")).click();
            driver.findElement(By.xpath(".//*[@id='nav']/ul/li[7]/a/span")).click();
            Thread.sleep(2000);
            driver.findElement(By.xpath(".//*[@id='subnav--item-m_0222']/li[1]/ul[1]/li[1]/a")).click();
            driver.findElement(By.xpath("html/body/div[3]/div/div[2]/div[2]/div/div[4]/ul/li[3]/div/div/div[4]/button")).click();
            Thread.sleep(2000);
            driver.findElement(By.xpath("html/body/div[3]/div/div[2]/div[2]/div/div[4]/ul/li[3]/div/div/div[4]/div/div/button[2]")).click();
            driver.findElement(By.xpath(".//*[@id='nav']/ul/li[1]/a/span")).click();
            Thread.sleep(2000);
            driver.findElement(By.xpath(".//*[@id='subnav--item-m_0001']/li[1]/ul[1]/li[1]/a")).click();
            Thread.sleep(2000);
            driver.findElement(By.xpath("html/body/div[3]/div/div[2]/div[2]/div/div[4]/ul/li[1]/div/div/div[3]/button")).click();
    //      WebElement apple_price=driver.findElement(By.xpath("html/body/div[3]/div/div[2]/div[2]/div/div[4]/ul/li[1]/div/div/div[3]/button"));
    //      if (apple_price.getText().equals("3.80"))
    //      {
    //          System.out.println("price matched");
    //          
    //          } 
    //      else {
    //          System.out.println("title not matched expected title is "+ apple_price.getText()); 
    //      }
            Thread.sleep(2000);
            driver.findElement(By.xpath("html/body/div[3]/div/div[2]/div[2]/div/div[4]/ul/li[1]/div/div/div[3]/div/div/button[2]")).click();
            driver.findElement(By.xpath(".//*[@id='nav']/ul/li[2]/a/span")).click();
            Thread.sleep(2000);
            driver.findElement(By.xpath(".//*[@id='subnav--item-m_0055']/li[1]/ul[1]/li[1]/a")).click();
            driver.findElement(By.xpath("html/body/div[3]/div/div[2]/div[2]/div/div[4]/ul/li[5]/div/div/div[3]/button")).click();
            driver.findElement(By.xpath("html/body/div[3]/div/div[2]/div[2]/div/div[4]/ul/li[2]/div/div/div[3]/button")).click();
            Thread.sleep(2000);
            driver.findElement(By.id("miniCartProceedToCheckoutButton")).click();
            Thread.sleep(2000);
            driver.findElement(By.id("miniCartProceedToCheckoutButton")).click();
            Thread.sleep(2000);
            driver.findElement(By.xpath(".//*[@id='heimlieferung']/div[4]/dl/dd[2]/a")).click();
            driver.findElement(By.id("chooseDeliveryDate_continue_button")).click();
            WebElement t=driver.findElement(By.xpath("html/body/div[3]/div/div[3]/div/dd"));
            if (t.getText().equals("120.40"))
            {
                System.out.println("price matched");

                } 
            else {
                System.out.println("title not matched expected title is "+ t.getText()); 
            }
    //      String Total_Cart=driver.findElement(By.xpath("html/body/div[3]/div/div[3]/div/dd")).getText();
    //      System.out.println(Total_Cart);
    //      if
    //      Assert.assertEquals(Total_Cart, 120);
    //      System.out.println("Test case passed");


      }
      @BeforeMethod
      public void beforeMethod() {
          System.setProperty("webdriver.chrome.driver","C:\\Chrome\\chromedriver.exe");
          ChromeOptions options = new ChromeOptions();

          Map<String, Object> prefs = new HashMap<String, Object>();
          prefs.put("credentials_enable_service", false);
          prefs.put("password_manager_enabled", false); 
          options.setExperimentalOption("prefs", prefs);
          options.addArguments("start-maximized");
          options.addArguments("disable-infobars");
          WebDriver driver = new ChromeDriver(options);
      }

      @AfterMethod
      public void afterMethod() {
          driver.close();
      }

---

在before方法中，在此行中有局部变量

driver

：

WebDriver driver = new ChromeDriver(options);

它必须是：

driver = new ChromeDriver(options);

方法如下：

 @BeforeMethod
      public void beforeMethod() {
    System.setProperty("webdriver.chrome.driver","C:\\Chrome\\chromedriver.exe");
          ChromeOptions options = new ChromeOptions();
          Map<String, Object> prefs = new HashMap<String, Object>();
          prefs.put("credentials_enable_service", false);
          prefs.put("password_manager_enabled", false); 
          options.setExperimentalOption("prefs", prefs);
          options.addArguments("start-maximized");
          options.addArguments("disable-infobars");
          driver = new ChromeDriver(options);
      }

@before方法
方法（）之前的公共无效{
System.setProperty（“webdriver.chrome.driver”，“C:\\chrome\\chromedriver.exe”）；
ChromeOptions选项=新的ChromeOptions（）；
Map prefs=新的HashMap（）；
prefs.put（“凭证启用服务”，false）；
prefs.put（“密码管理器已启用”，false）；
选项。设置实验选项（“prefs”，prefs）；
选项。添加参数（“开始最大化”）；
options.addArguments（“禁用信息栏”）；
驱动程序=新的色度驱动程序（可选）；
}

您犯了一个错误

WebDriver是一个类变量，即该类的任何方法都可以使用它

在@BeforeMethod中，您写了一行： WebDriver=新的ChromeDriver（选项）。请换成 驱动程序=新的色度驱动程序（可选）

---

您正在创建一个Webdriver类型的单独对象，类变量driver的值仍然为“null”，因此您得到的是null指针异常。

您的答案与@vijayjawale Answer有什么不同？谢谢，你说得对。答案也一样。当我开始写答案时，它不在那里。

 @BeforeMethod
      public void beforeMethod() {
    System.setProperty("webdriver.chrome.driver","C:\\Chrome\\chromedriver.exe");
          ChromeOptions options = new ChromeOptions();
          Map<String, Object> prefs = new HashMap<String, Object>();
          prefs.put("credentials_enable_service", false);
          prefs.put("password_manager_enabled", false); 
          options.setExperimentalOption("prefs", prefs);
          options.addArguments("start-maximized");
          options.addArguments("disable-infobars");
          driver = new ChromeDriver(options);
      }