硒| NamespaceError:无法对“文档”执行“评估”包含无法解析的名称空间

时间:2019-05-15 15:57:10

标签: java selenium evaluate invalidselectorexception

我可以使用如下浏览器的开发人员工具检查元素:

使用FireFox检查了元素:

/html/body/div[1]/div/div[8]/form/div[2]/spring:eval/table/tbody/tr[2]/td[5]

使用Chrome浏览器检查了以下相同元素:

//*[@id="searchVO"]/div[2]/spring:eval/table/tbody/tr[2]/td[5]

但是,当我尝试在脚本中使用这些XPath中的任何一个时,执行失败并显示以下堆栈跟踪:

WebElement formElement = wd.findElement(By.xpath("//*[@id=\"searchVO\"]/div[2]/spring:eval/table/tbody/tr[2]/td[5]"));

WebElement formElement = wd.findElement(By.xpath("/html/body/div[1]/div/div[8]/form/div[2]/spring:eval/table/tbody/tr[2]/td[5]"));

堆栈跟踪:

org.openqa.selenium.InvalidSelectorException: invalid selector: Unable to locate an element with the xpath expression //*[@id="searchVO"]/div[2]/spring:eval/table/tbody/tr[2]/td[5] because of the following error:
NamespaceError: Failed to execute 'evaluate' on 'Document': The string '//*[@id="searchVO"]/div[2]/spring:eval/table/tbody/tr[2]/td[5]' contains unresolvable namespaces.
…
…
…
*** Element info: {Using=xpath, value=//*[@id="searchVO"]/div[2]/spring:eval/table/tbody/tr[2]/td[5]}
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
    at java.lang.reflect.Constructor.newInstance(Unknown Source)
    at org.openqa.selenium.remote.ErrorHandler.createThrowable(ErrorHandler.java:204)
    at org.openqa.selenium.remote.ErrorHandler.throwIfResponseFailed(ErrorHandler.java:156)

我还确认了网页上没有框架;但是,上面的元素存在于表单中–该元素的片段在下面给出–我试图在状态“ Operative”或“ Stopped”下找到-Xpath上方属于此状态字段。

在执行此搜索后,如果状态为“正在运行”,则需要单击Product1。

<form id="searchVO" action="/webpage/webpage/search-products?execution=e2s1" method="post">
<div id="nc-bd">
<h2>
Search results for 
Some phone number
</h2>
</div>
<br>
<div>
<spring:eval expression="@webpageServicesProperties['SOMEVARIABLE_SWITCH']" var="someVariableSwitch">
<div id="errorMessage" style="display: none;">
<label class="error-message" id="errorBar"></label>
</div>
<table style="width: 100%;">
    <caption>Products   </caption>
    <tbody>
        <tr>
            <th>Name</th>
            <th>Product</th>
            <th>Some phone number</th>
            <th>Username</th>
            <th>Status</th>
        </tr>
                        <tr>
                            <td>Mr XXX</td>
                                    <td>
                                        <a href="CustomerID=333333333">Product1</a>
                                    </td>
                            <td>
                            09876543210
                            </td>
                                <td class="wrap-txt">someemail@ID.com</td>
                            <td>Operative</td>
                       </tr>
                        <tr>
                            <td>Mr XXX</td>
                                    <td>
                                        <a href="CustomerID=4444444444">Product2</a>
                                    </td>
                            <td>
                            09876543210
                            </td>
                                <td class="wrap-txt">someemail@ID.com</td>
                            <td>Stopped</td>
                       </tr>
    </tbody>
</table>
    </spring:eval></div>
</form>

请提供任何有关查找此问题原因的帮助。

2 个答案:

答案 0 :(得分:1)

这里是手术的xpath。

WebElement formElement = wd.findElement(By.xpath("//div[@id='nc-bd']/following-sibling::div[1]//table//tr[2]//td[5]"));

xpath已停止。

WebElement formElement = wd.findElement(By.xpath("//div[@id='nc-bd']/following-sibling::div[1]//table//tr[3]//td[5]"));

答案 1 :(得分:0)

这里是将用Operative标识所有产品的xpath。

//form[@id='searchVO']//table//tr[td[normalize-space(.)='Operative']]/td[count(./ancestor::table//tr[1]/th[normalize-space(.)='Product'])+1]