如何有效地从嵌套的 xml 中提取数据？ 有效地，我的意思是例如使用 for 循环。 我需要使用新的数据结构吗？
解析函数：
<?xml version="1.0" encoding="UTF-8"?>
<soapenv:Envelope
xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/"
xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<soapenv:Body>
<ns:OTA_AirSeatMapRS Version="1"
xmlns:ns="http://www.opentravel.org/OTA/2003/05/common/">
<ns:Success/>
<ns:SeatMapResponses>
<ns:SeatMapResponse>
<ns:FlightSegmentInfo DepartureDateTime="2020-11-22T15:30:00" FlightNumber="1179">
<ns:DepartureAirport LocationCode="LAS"/>
<ns:ArrivalAirport LocationCode="IAH"/>
<ns:Equipment AirEquipType="739"/>
</ns:FlightSegmentInfo>
<ns:SeatMapDetails>
<ns:CabinClass Layout="AB EF" UpperDeckInd="false">
<ns:RowInfo CabinType="First" OperableInd="true" RowNumber="1">
<ns:SeatInfo BlockedInd="false" BulkheadInd="false" ColumnNumber="1" ExitRowInd="false" GalleyInd="false" GridNumber="1" PlaneSection="Left">
<ns:Summary AvailableInd="false" InoperativeInd="false" OccupiedInd="false" SeatNumber="1A"/>
<ns:Features>Window</ns:Features>
</ns:SeatInfo>
这是 XML 文件的一部分：
/usr/local/bin/geckodriver: 2: /usr/local/bin/geckodriver: YM9sHIiHMIi: not found
/usr/local/bin/geckodriver: 1: /usr/local/bin/geckodriver: Syntax error: end of file unexpected (expecting ")")
/usr/local/bin/geckodriver: 1: /usr/local/bin/geckodriver: 6: not found
/usr/local/bin/geckodriver: 1: /usr/local/bin/geckodriver: : not found
/usr/local/bin/geckodriver: 1: /usr/local/bin/geckodriver: : not found
/usr/local/bin/geckodriver: 1: /usr/local/bin/geckodriver: 6: not found
/usr/local/bin/geckodriver: 1: /usr/local/bin/geckodriver: $/: not found
/usr/local/bin/geckodriver: 1: /usr/local/bin/geckodriver: GNUu¬wת,岹PXH: not found
/usr/local/bin/geckodriver: 1: /usr/local/bin/geckodriver: ELF: not found
Exception in thread "main" org.openqa.selenium.WebDriverException: java.net.ConnectException: Failed to connect to localhost/0:0:0:0:0:0:0:1:29555
Build info: version: 'unknown', revision: 'unknown', time: 'unknown'
System info: host: 'raspy', ip: '192.168.1.33', os.name: 'Linux', os.arch: 'aarch64', os.version: '5.9.0-0.bpo.5-arm64', java.version: '11.0.9.1'
Driver info: driver.version: FirefoxDriver
at org.openqa.selenium.remote.service.DriverCommandExecutor.execute(DriverCommandExecutor.java:92)
at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:552)
at org.openqa.selenium.remote.RemoteWebDriver.startSession(RemoteWebDriver.java:213)
at org.openqa.selenium.remote.RemoteWebDriver.<init>(RemoteWebDriver.java:131)
at org.openqa.selenium.firefox.FirefoxDriver.<init>(FirefoxDriver.java:147)
at net.ddns.creepercrack.Main.main(Main.java:40)
Caused by: java.net.ConnectException: Failed to connect to localhost/0:0:0:0:0:0:0:1:29555
at okhttp3.internal.connection.RealConnection.connectSocket(RealConnection.java:247)
at okhttp3.internal.connection.RealConnection.connect(RealConnection.java:165)
at okhttp3.internal.connection.StreamAllocation.findConnection(StreamAllocation.java:257)
at okhttp3.internal.connection.StreamAllocation.findHealthyConnection(StreamAllocation.java:135)
at okhttp3.internal.connection.StreamAllocation.newStream(StreamAllocation.java:114)
at okhttp3.internal.connection.ConnectInterceptor.intercept(ConnectInterceptor.java:42)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121)
at okhttp3.internal.cache.CacheInterceptor.intercept(CacheInterceptor.java:93)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121)
at okhttp3.internal.http.BridgeInterceptor.intercept(BridgeInterceptor.java:93)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147)
at okhttp3.internal.http.RetryAndFollowUpInterceptor.intercept(RetryAndFollowUpInterceptor.java:126)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121)
at okhttp3.RealCall.getResponseWithInterceptorChain(RealCall.java:200)
at okhttp3.RealCall.execute(RealCall.java:77)
at org.openqa.selenium.remote.internal.OkHttpClient.execute(OkHttpClient.java:103)
at org.openqa.selenium.remote.ProtocolHandshake.createSession(ProtocolHandshake.java:105)
at org.openqa.selenium.remote.ProtocolHandshake.createSession(ProtocolHandshake.java:74)
at org.openqa.selenium.remote.HttpCommandExecutor.execute(HttpCommandExecutor.java:136)
at org.openqa.selenium.remote.service.DriverCommandExecutor.execute(DriverCommandExecutor.java:83)
... 5 more
Caused by: java.net.ConnectException: Connection refused (Connection refused)
at java.base/java.net.PlainSocketImpl.socketConnect(Native Method)
at java.base/java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:399)
at java.base/java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:242)
at java.base/java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:224)
at java.base/java.net.SocksSocketImpl.connect(SocksSocketImpl.java:403)
at java.base/java.net.Socket.connect(Socket.java:609)
at okhttp3.internal.platform.Platform.connectSocket(Platform.java:129)
at okhttp3.internal.connection.RealConnection.connectSocket(RealConnection.java:245)
... 27 more
我的最终目标是使用解析后的数据存储在 JSON 中。
答案 0 :(得分：0)
查看代码中的以下说明：
for x in element.find(Service):
您的代码示例中的第一个缺陷是：
另一个缺陷的来源是 find 找到了 first 元素 匹配给定的路径，所以你不应该在循环中使用它。 也许你还应该检查 find 是否返回了一些 not-None 内容，但这是另一个细节。
你得到空输出的第三个原因是 print(x) 实际上只打印相关元素的文本。
所以有一个更一般的例子，运行：
Service = 'Summary'
x = root.find(f'.//{Service}')
print(f'{x.tag}, {x.text}, {x.attrib}')
第一条指令设置标签名称。
第二条指令调用 find，但请注意我添加了 './/' 到 XPath，查看源 XML 树的任何深度。
最后一条指令不仅打印找到的元素的文本， 还有标签名称和属性。
我得到的结果（对于您的输入 XML）是：
Summary, None, {'AvailableInd': 'false', 'InoperativeInd': 'false', 'OccupiedInd': 'false', 'SeatNumber': '1A'}
（text 只是 None，所以您在原始文件中没有看到任何结果 输出）。