如何通过ksoap2创建SOAP请求

<?xml version="1.0" encoding="UTF-8"?>
<S:Envelope xmlns:S="https://schemas.xmlsoap.org/soap/envelope/">
    <S:Header/>
    <S:Body>
        <ns2:FReadStatus xmlns:ns2="https://poweb13/">
            <arg0>000D6F0000</arg0>
        </ns2:FReadStatus>
    </S:Body>
</S:Envelope>
<?xml version="1.0" encoding="UTF-8"?>
<S:Envel