java - XPATH使用条件过滤不同内部路径中的元素

Question

团队，我正在学习多个 XPATH 教程，但无法使用一个 XPathExpression 实现以下期望。

如何获取 PostpaidInformation --> AccountNumber=AC-12 的 ActiveValue 和日期值 ..？

<params>
    <param>
        <value>
            <struct>
                <member>
                    <name>PrepaidInformation</name>
                    <value>
                        <struct>
                            <member>
                                <name>activationStatus</name>
                                <value>
                                    <boolean>1</boolean>
                                </value>
                            </member>
                        </struct>
                    </value>
                </member>
                <member>
                    <name>MixedInformation</name>
                    <value>
                        <struct>
                            <member>
                                <name>activationStatus</name>
                                <value>
                                    <boolean>0</boolean>
                                </value>
                            </member>
                        </struct>
                    </value>
                </member>
                <member>
                    <name>PostpaidInformation</name>
                    <value>
                        <array>
                            <data>
                                <value>
                                    <struct>
                                        <member>
                                            <name>ActiveValue</name>
                                            <value>
                                                <string>60</string>
                                            </value>
                                        </member>
                                        <member>
                                            <name>Date</name>
                                            <value>
                                                <string>20170225T12:00:00</string>
                                            </value>
                                        </member>
                                        <member>
                                            <name>AccountNumber</name>
                                            <value>
                                                <i4>AC-12</i4>
                                            </value>
                                        </member>
                                    </struct>
                                </value>
                                <value>
                                    <struct>
                                        <member>
                                            <name>ActiveValue</name>
                                            <value>
                                                <string>23</string>
                                            </value>
                                        </member>
                                        <member>
                                            <name>Date</name>
                                            <value>
                                                <string>20170225T12:00:00</string>
                                            </value>
                                        </member>
                                        <member>
                                            <name>AccountNumber</name>
                                            <value>
                                                <i4>AC-13</i4>
                                            </value>
                                        </member>
                                    </struct>
                                </value>
                            </data>
                        </array>
                    </value>
                </member>
            </struct>
        </value>
    </param>
</params>

注意，我必须匹配 PostpaidInformation，然后匹配 AccountNumber = AC-12。如果匹配则打印有关该帐户的所有信息。

也许我需要的是//methodResponse/params/param/value/struct/member/name[text()=\"PostpaidInformation\"]遍历其中的所有帐户，直到找到 AccountNumber=AC-12 ，如果找到则从 member/value 退出一级到达<struct>迭代所有 <member>在该结构内部。

预期输出是下面要遍历的NodeSet。

                                    <member>
                                        <name>ActiveValue</name>
                                        <value>
                                            <string>60</string>
                                        </value>
                                    </member>
                                    <member>
                                        <name>Date</name>
                                        <value>
                                            <string>20170225T12:00:00</string>
                                        </value>
                                    </member>
                                    <member>
                                        <name>AccountNumber</name>
                                        <value>
                                            <i4>AC-12</i4>
                                        </value>
                                    </member>

实际答案

安德森是

//member/name[text()="PostpaidInformation"]/following-sibling:: 
value/array/data/value/struct[member[name="AccountNumber"]/value/i4="AC-12"] 

har07 是

//member[name='PostpaidInformation']//struct[member[name='AccountNumber' and value/i4='AC-12']]/member

Answer 1

你能尝试一下吗:

//member/name[text()="PostpaidInformation"][1]/following-sibling::value/array/data/value/struct/member

这个XPath应该返回 3 member节点:

<member>
    <name>ActiveValue</name>
    <value>
         <string>60</string>
    </value>
</member>
<member>
   <name>Date</name>
   <value>
        <string>20170225T12:00:00</string>
   </value>
</member>
<member>
   <name>AccountNumber</name>
   <value>
        <i4>AC-12</i4>
   </value>
</member>

如果你想检索<struct>包含那些 3 <member> :

//member/name[text()="PostpaidInformation"]/following-sibling::value/array/data/value/struct[member[name[.="AccountNumber"]/following-sibling::value/i4="AC-12"]]