wsdl 信息发送问题(为何服务器总是收不到传过去的参数)

debug 结果:
Request
POST /services/QueryValidatorServices HTTP/1.0
Host: gboss.xxxx.cn
User-Agent: NuSOAP/0.9.5 (1.123)
Content-Type: text/xml; charset=UTF-8
SOAPAction: ""
Content-Length: 454

<?xml version="1.0" encoding="UTF-8"?>
<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" 
xmlns:xsd="http://www.w3.org/2001/XMLSchema" 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/"><SOAP-ENV:Body><querySingle 
xmlns="http://app.service.validator.businesses.gboss.xxxx.cn"><userName_/><password_/><type_/><param_/>
</querySingle></SOAP-ENV:Body></SOAP-ENV:Envelope>
Response
HTTP/1.1 200 OK
Cache-Control: no-cache="set-cookie"
Connection: close
Date: Thu, 19 May 2011 02:42:18 GMT
Content-Type: text/xml; charset=utf-8
Set-Cookie: 
JSESSIONID=1czTNJDKvKyJMzj1XS35HQJMSp8xqwxrPWPtHQPbBhh1P2QyVPmc!698743253!-318475518; 
path=/
X-Powered-By: Servlet/2.4 JSP/2.0
Set-Cookie: BIGipServerGboss=503949504.23323.0000; path=/

<?xml version="1.0" encoding="UTF-8"?>
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" 
xmlns:xsd="http://www.w3.org/2001/XMLSchema" 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<soapenv:Body><querySingleResponse 
xmlns="http://app.service.validator.businesses.gboss.xxxx.cn">
<querySingleReturn>S078JKKtSvAMWap/sIGpd4eiphXoB0MB8EfFuFogsz8RLhrqnYxuAI8jchhX2zrYlCcVJcbeIfkw
P7h6A+13QRIPDjUZPyuGOqN+E320bnnnmab7/QzX4Gn4kfodyjtIwI7WmNYH9Cb95Z1cYmxLwRZlIzj1CC6ks7eRPiS9zUx
QCtSytjoMO6vTdj/X3RNIIFVxG19S6PU=</querySingleReturn>
</querySingleResponse>
</soapenv:Body>
</soapenv:Envelope>
Debug
2011-05-19 10:41:13.008584 nusoap_client: ctor wsdl=1 timeout=0 response_timeout=30
endpoint=string(56) "http://gboss.xxxx.cn/services/QueryValidatorServices?wsdl"
2011-05-19 10:41:13.008790 nusoap_client: will use lazy evaluation of wsdl from 
http://gboss.xxxx.cn/services/QueryValidatorServices?wsdl
2011-05-19 10:41:13.011472 nusoap_client: call: operation=querySingle, namespace=, soapAction=, 
rpcParams=1, style=document, use=encoded, endpointType=wsdl
params=array(1) {
  ["parameters"]=>
  array(4) {
  ["username"]=>
  string(12) "aaaaaa="
  ["password"]=>
  string(24) "aaaaaa="
  ["type"]=>
  string(24) "x//JMQkWcf75ZP/10wglFA=="
  ["param"]=>
  string(44) "XsNF7L1h9k8gdrWgePuGTgf9buwxZpDp6rVfGN4T/Cg="
  }
}

这哪看得出来啊？