soap request的参数无法发送

[angelataoy]

在asp用xmlhttp发送soap request如下
SoapRequest = "<?xml version="&CHR(34)&"1.0"&CHR(34)&" encoding="&CHR(34)&"utf-8"&CHR(34)&"?>"& _
"<soap:Envelope xmlns:xsi="&CHR(34)&"http://www.w3.org/2001/XMLSchema-instance"&CHR(34)&" "& _
"xmlns:xsd="&CHR(34)&"http://www.w3.org/2001/XMLSchema"&CHR(34)&" "& _
"xmlns:soap="&CHR(34)&"http://schemas.xmlsoap.org/soap/envelope/"&CHR(34)&">"& _
"<soap:Body>"& _
"<helloWorld xmlns="&CHR(34)&"http://hello/"&CHR(34)&">"& _
"<param0 xsi:type="&CHR(34)&"xsd:string"&CHR(34)&">Tom</param0>"& _
"</depositCard>"& _
"</soap:Body>"& _
"</soap:Envelope>"


url ="http://***.***.***.***/hellows/helloService?methodname=helloWorld"


Set xmlDOC =server.CreateObject("MSXML.DOMDocument")
xmlDOC.loadXML(SoapRequest)


Set xmlhttp = server.CreateObject("Msxml2.XMLHTTP")
xmlhttp.Open "POST",url,false

xmlhttp.setRequestHeader "Content-Type", "text/xml;charset=utf-8"
xmlhttp.setRequestHeader "SOAPAction", "urn:deposit-Deposit/depositCard"
xmlhttp.setRequestHeader "Content-Length",LEN(SoapRequest)
xmlhttp.Send(xmlDOC)

xmlhttp status 返回200 但是xmlhttp response 报错，告知param0的参数为空，也就是body中的值并未传出，请问是何原因？是网络故障吗？请问如何设超时和重试次数？
谢谢大侠

[angelataoy]

soaprequest 应为：
SoapRequest = "<?xml version="&CHR(34)&"1.0"&CHR(34)&" encoding="&CHR(34)&"utf-8"&CHR(34)&"?>"& _
"<soap:Envelope xmlns:xsi="&CHR(34)&"http://www.w3.org/2001/XMLSchema-instance"&CHR(34)&" "& _
"xmlns:xsd="&CHR(34)&"http://www.w3.org/2001/XMLSchema"&CHR(34)&" "& _
"xmlns:soap="&CHR(34)&"http://schemas.xmlsoap.org/soap/envelope/"&CHR(34)&">"& _
"<soap:Body>"& _
"<helloWorld xmlns="&CHR(34)&"http://hello/"&CHR(34)&">"& _
"<param0 xsi:type="&CHR(34)&"xsd:string"&CHR(34)&">Tom</param0>"& _
"</helloWorld>"& _
"</soap:Body>"& _
"</soap:Envelope>"

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