java解析xml，不使用第三方包
解决方法：
<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"><soap:Header/><soap:Body><ns2:sendMsgResponse xmlns:ns2="http://juchen.webservice.com/"><_return><entry><key>bat</key><value xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="xs:string">19030816161728700000022</value></entry><entry><key>resp</key><value xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="xs:string">0</value></entry></_return></ns2:sendMsgResponse></soap:Body></soap:Envelope>
解析xml,把entry标签中的key和value封装成map对象:http://www.yayihouse.com/yayishuwu/chapter/1808