C++ C++；使用Boost xml_解析器解析nmap xml输出和类似内容

对于xml：

<?xml version="1.0" ?>
<?xml-stylesheet href="file:///usr/share/nmap/nmap.xsl" type="text/xsl"?>
<!-- Nmap 5.21 scan initiated Tue Feb  3 12:01:07 2015 as: nmap -v -R -sP -PS80 -&#45;traceroute -oX /tmp/SCB_nmap_tcp_traceroute.xml 54.209.104.11 -->
<nmaprun scanner="nmap" args="nmap -v -R -sP -PS80 -&#45;traceroute -oX /tmp/SCB_nmap_tcp_traceroute.xml 54.209.104.11" start="1422964867" startstr="Tue Feb  3 12:01:07 2015" version="5.21" xmloutputversion="1.03">
<verbose level="1" />
<debugging level="0" />
<taskbegin task="Ping Scan" time="1422964867" />
<taskend task="Ping Scan" time="1422964867" extrainfo="1 total hosts" />
<taskbegin task="Parallel DNS resolution of 1 host." time="1422964867" />
<taskend task="Parallel DNS resolution of 1 host." time="1422964867" />
<taskbegin task="Traceroute" time="1422964867" />
<taskend task="Traceroute" time="1422964873" />
<host starttime="1422964867" endtime="1422964867"><status state="up" reason="reset"/>
<address addr="54.209.104.11" addrtype="ipv4" />
<hostnames>
<hostname name="ec2-54-209-104-11.compute-1.amazonaws.com" type="PTR"/>
</hostnames>
<trace port="80" proto="tcp">
<hop ttl="17" ipaddr="54.209.104.11" rtt="256.20" host="ec2-54-209-104-11.compute-1.amazonaws.com"/>
</trace>
<times srtt="256382" rttvar="192360" to="1025822" />
</host>
<runstats><finished time="1422964873" timestr="Tue Feb  3 12:01:13 2015" elapsed="6.48"/><hosts up="1" down="0" total="1" />
<!-- Nmap done at Tue Feb  3 12:01:13 2015; 1 IP address (1 host up) scanned in 6.48 seconds -->
</runstats></nmaprun>

我尝试使用Boost进行如下解析：

int main ( int, char ** )
try
{
        // Will hold file contents.
    stringstream contents;

        // Open the file for the shortest time possible.
    { ifstream file("./SCB_nmap_tcp_traceroute.xml", ios::binary);

            // Make sure we have something to read.
        if ( !file.is_open() ) {
            throw ("Could not open file.");
        }

            // Copy contents "as efficiently as possible".
        contents << file.rdbuf();
    }

        // Do something "useful" with the file contents.
    cout << contents.rdbuf();
    using boost::property_tree::ptree;
    ptree pt;
    read_xml(contents, pt);

        BOOST_FOREACH(ptree::value_type &v, pt.get_child("runstats"))
                cout<<"Found trace"<<endl;

int main（int，char**）
尝试
{
//将保存文件内容。
流内容；
//以尽可能短的时间打开文件。
{ifstream文件（“./SCB\u nmap\u tcp\u traceroute.xml”，ios:：binary）；
//确保我们有东西要读。
如果（！file.is_open（））{
抛出（“无法打开文件”）；
}
//“尽可能高效地”复制内容。
您定义中的内容：

BOOST_FOREACH(ptree::value_type &v, pt.get_child("runstats"))

您需要将根节点放在
runstats
之前，请尝试：

BOOST_FOREACH(ptree::value_type &v, pt.get_child("nmaprun.runstats"))

删除James Moore的上述解决方案应该有效，但我不是得到了std:：exception吗？我确实找到了一个有效的解决方案。需要上传那个独立的示例。