关于XML解析 没思路了 救命

XML code:

<?xml version="1.0" encoding="utf-8"?>

<root>
<line lineCode="1" lineName="test" speed="45" direct="1">

<road lineInCode="1" roadCode="253" roadName="新建路口253" sectionLong="0" opCycle="1800" splitCoordPhase="1"

splitStageTable="1" phaseDiff="2" periodTable="1" period="1">
<stages number="4">
<stage stageCode="1" stageGreen="25" minGreen="15" maxGreen="32" yellow="3" redClear="0" phases="1,3,9,10,11,12"/>
<stage stageCode="2" stageGreen="17" minGreen="12" maxGreen="28" yellow="3" redClear="0" phases="2,4"/>
<stage stageCode="3" stageGreen="22" minGreen="12" maxGreen="32" yellow="3" redClear="0" phases="5,7,13,14,15,16"/>
<stage stageCode="4" stageGreen="18" minGreen="12" maxGreen="25" yellow="3" redClear="0" phases="6,8"/>
</stages>
</road>

<road lineInCode=&quo