将javascript执行程序代码添加到字符串显示错误

Question

WebElement element = driver.findElement(By.id(pro.getProperty("")));
JavascriptExecutor jse = (JavascriptExecutor)driver;
jse.executeScript("return arguments[0].text", element);

String cartCountSearchTab = ((String) ((JavascriptExecutor)driver).executeScript("returnarguments[0].text;",driver.findElement(By.id(pro.getProperty(""))))).replaceAll(" ", "");

int cartCountTab = Integer.parseInt(cartCountSearchTab);

上面的代码抛出空指针异常。

Answer 1

在您的JavaScript中，关键字 return 后应该有空格，如下所示。

String cartCountSearchTab = ((String) ((JavascriptExecutor)driver).executeScript("return arguments[0].text;",driver.findElement(By.id(pro.getProperty(""))))).replaceAll(" ", "");