用xstream解析xml
<?xml version='1.0' encoding='GB2312' ?>
<crp><item name='agentid' value='test@test.com' />
<item name='agent_orderid' value='"215688' />
<item name='order_money' value='50' />
<item name='tranid' value='515000' />
<item name='status' value='2' />
<item name='result_no' value='0000' />
<item name='verify_string' value='874e66194142bb9e23af38e3d6dac780fd456' />
</crp>
解析如上xml