Question

求 selenium By.xpath 包含变量 解决方案

各位大侠, 请帮忙看看这个问题
我用java 写 selenium By.xpath 元素定位, 遇到 xpath 里面包含有变动的ID, 想通过 动态获取该ID 先转成string 再通过By.xpath 来定位, 编译报错 无法定位.
代码如下:
String tmp = "\"" + "//span[@class='bigbtn' and @eid='" + ID +"']" + "\"";
WebElement Bigbtn = driver.findElement(By.xpath(tmp));
异常如下:
Exception in thread "main" org.openqa.selenium.InvalidSelectorException: The given selector "//span[@class='bigbtn' and @eid='123']" is either invalid or does not result in a WebElement. The following error occurred:
InvalidSelectorError: Unable to locate an element with the xpath expression "//span[@class='bigbtn' and @eid='123']" because of the following error:
[Exception... "The expression cannot be converted to return the specified type." code: "0" nsresult: "0x805b0034 (TypeError)" location: "<unknown>"]
若直接写 常量的内容, 是可以定位的

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Answer 1

这个异常是表示你的xpath表达式有误，把"\"" 去掉试试