为内联代码获取 NullPointerException。我已经在全球范围内定义了 WebDriver，调用浏览器方法工作正常我在这里做错了什么

Question

public class Test{
    static WebDriver driver;
    public static void main(String[] arg) throws IOException, InterruptedException {
        Test2();
    }

    public static void CallBrowserChrome() {
        try {
            System.setProperty("webdriver.chrome.driver", "G:\Chrome\chromedriver.exe");
            WebDriver driver = new ChromeDriver();
            driver.get("https://google.com");
            
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
    public static void Test2() throws IOException, InterruptedException {
        CallBrowserChrome();

        FileInputStream fis = new FileInputStream("G:\Book1.xlsx");
        XSSFWorkbook wb = new XSSFWorkbook(fis);
        XSSFSheet sheet = wb.getSheetAt(0);
        int rows = sheet.getLastRowNum();
        System.out.println(rows);
        for (int i = 1; i <= rows; i++) {
            String value = sheet.getRow(i).getCell(0).getStringCellValue();
            System.out.println(value);
            **driver.findElement(By.xpath("//*[@id='js-main-container']"))
                    .sendKeys(value);**
        }
        }
}

//错误在这一行 Highlighted(driver in 2nd Class);我已经尝试在方法主体内提供 WebDriver，但这也不起作用

  [1]: https://i.stack.imgur.com/0GzeA.png

Answer 1

此行：WebDriver driver = new ChromeDriver(); 将驱动程序声明为 CallBrowserChrome 的本地驱动程序并忽略您的其他声明。

将您的第一个方法更改为：

   public static void CallBrowserChrome() {
        try {
            System.setProperty("webdriver.chrome.driver", "G:\Chrome\chromedriver.exe");
            driver = new ChromeDriver();// update this line
            driver.get("https://google.com");
            //...etc

为内联代码获取 NullPointerException。我已经在全球范围内定义了 WebDriver，调用浏览器方法工作正常我在这里做错了什么

getting NullPointerException for inline code. I have defined the WebDriver globally, call browser method is working fine What i am doing wrong here

selenium

webdriver

为内联代码获取 NullPointerException。我已经在全球范围内定义了 WebDriver，调用浏览器方法工作正常 我在这里做错了什么

getting NullPointerException for inline code. I have defined the WebDriver globally, call browser method is working fine What i am doing wrong here

selenium

webdriver

为内联代码获取 NullPointerException。我已经在全球范围内定义了 WebDriver，调用浏览器方法工作正常我在这里做错了什么