处理XML文档
处理XML文档
提问于 2014-03-25 14:36:23
我有以下XML文档，并试图构建一个过滤器，从元素中返回元素的内容(如果存在的话)。
到目前为止，我有以下代码：
val xml = XML.loadString(output)
val ports = xml \\ "ports"然后，我认为我需要这样做来构建过滤器，但我不能让它像我所期望的那样工作。
for (port <- ports \\ "port"){
println(port \\ "port" filter{ _ \\"script" exists } \\ "script")
}。
<?xml version="1.0"?>
<?xml-stylesheet href="file:///usr/local/share/nmap/nmap.xsl" type="text/xsl"?>
<!-- Nmap 6.40 scan initiated Tue Mar 25 14:14:09 2014 as: /usr/local/bin/nmap --datadir /usr/local/share/nmap --script=ssl-cert -p 443,80 -v -oX - www.adobe.com -->
<nmaprun scanner="nmap"
args="/usr/local/bin/nmap --datadir /usr/local/share/nmap --script=ssl-cert -p 443,80 -v -oX - www.abc.com"
start="1395756849" startstr="Tue Mar 25 14:14:09 2014" version="6.40" xmloutputversion="1.04">
<scaninfo type="connect" protocol="tcp" numservices="2" services="80,443"/>
<verbose level="1"/>
<debugging level="0"/>
<taskbegin task="Ping Scan" time="1395756849"/>
<taskend task="Ping Scan" time="1395756849" extrainfo="1 total hosts"/>
<taskbegin task="Parallel DNS resolution of 1 host." time="1395756849"/>
<taskend task="Parallel DNS resolution of 1 host." time="1395756849"/>
<taskbegin task="Connect Scan" time="1395756849"/>
<taskend task="Connect Scan" time="1395756849" extrainfo="2 total ports"/>
<taskbegin task="NSE" time="1395756849"/>
<taskend task="NSE" time="1395756849"/>
<host starttime="1395756849" endtime="1395756849">
<status state="up" reason="syn-ack" reason_ttl="0"/>
<address addr="111.111.111.11" addrtype="ipv4"/>
<hostnames>
<hostname name="www.abc.com" type="user"/>
<hostname name="www.abc.com" type="PTR"/>
</hostnames>
<ports>
<port protocol="tcp" portid="80">
<state state="open" reason="syn-ack" reason_ttl="0"/>
<service name="http" method="table" conf="3"/>
</port>
<port protocol="tcp" portid="443">
<state state="open" reason="syn-ack" reason_ttl="0"/>
<service name="https" method="table" conf="3"/>
<script id="ssl-cert" output="placeholder text">
<table key="subject">
<elem key="commonName">www.abc.com</elem>
<elem key="organizationalUnitName">Info</elem>
<elem key="stateOrProvinceName">London</elem>
<elem key="countryName">UK</elem>
<elem key="organizationName">ABC Incorporated</elem>
<elem key="localityName">London</elem>
</table>
<table key="issuer">
<elem key="commonName">VeriSign Class 3 International Server CA - G3</elem>
<elem key="countryName">US</elem>
<elem key="organizationalUnitName">Terms of use at https://www.verisign.com/rpa (c)10</elem>
<elem key="organizationName">VeriSign, Inc.</elem>
</table>
<table key="pubkey">
<elem key="type">rsa</elem>
<elem key="bits">2048</elem>
</table>
<table key="validity">
<elem key="notBefore">2012-11-04T00:00:00+00:00</elem>
<elem key="notAfter">2014-11-23T23:59:59+00:00</elem>
</table>
<elem key="md5">0b96b21786ab67c5531cff08cf044c6b</elem>
<elem key="sha1">b3cd7fec0ade71acb0fe83be5e723495313ff426</elem>
<elem key="pem">-placeholder</elem>
</script>
</port>
</ports>
<times srtt="106198" rttvar="99430" to="503918"/>
</host>
<runstats>
<finished time="1395756849" timestr="Tue Mar 25 14:14:09 2014" elapsed="0.70"
summary="Nmap done at Tue Mar 25 14:14:09 2014; 1 IP address (1 host up) scanned in 0.70 seconds"
exit="success"/>
<hosts up="1" down="0" total="1"/>
</runstats>
</nmaprun>回答 1
Stack Overflow用户
回答已采纳
发布于 2014-03-25 15:56:23
对script的过滤并不是真正必要的，因为\\将遍历整个结构并返回那些匹配的元素。
xml \\ "script"
res1: scala.xml.NodeSeq = NodeSeq(<script id="ssl-cert" output="placeholder text">
...在script中打印res1标记
res1.foreach(println(_))
<script id="ssl-cert" output="placeholder text">
<table key="subject">
...关于注释的更新
只获取包含port节点的script节点
(xml \\ "ports" \\ "port").filter(n => n.descendant.exists(_.label == "script"))产出：
res81: scala.xml.NodeSeq =
NodeSeq(<port protocol="tcp" portid="443">
<state state="open" reason="syn-ack" reason_ttl="0"/>
<service name="https" method="table" conf="3"/>
<script>
<table key="subject">
...descendant给出了一个List[Node]，这是一种方法。还有其他的，但这对我有用。
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/22637757
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