ASP 呼叫WEB SERVICE 文件

----INDEX----
1. soap請求方式
2. post請求方式
3. SHOWALLNODE函式(關於節點各屬性和資料顯示)

一．SOAP請求示例
下面是一個 SOAP 請求示例。所顯示的佔位符需要由實際值替換。
POST /WebService1/UserSignOn.asmx HTTP/1.1
Host: 192.100.100.81
Content-Type: text/xml; charset=utf-8
Content-Length: length
SOAPAction: "http://tempuri.org/LoginByAccount"

http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">

http://tempuri.org/">
string
string



為了與WEBSERVICE互動，需要構造一個與上完全相同的SOAP請求：
url = "http://192.100.100.81/WebService1/UserSignOn.asmx"

SoapRequest=""& _
"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)&">"& _
""& _

"http://tempuri.org/"&CHR(34)&">"& _
""&username&""& _
""&password&""& _
""& _

""& _
""

Set xmlhttp = server.CreateObject("Msxml2.XMLHTTP")
xmlhttp.Open "POST",url,false
xmlhttp.setRequestHeader "Content-Type", "text/xml;charset=utf-8"
xmlhttp.setRequestHeader "HOST","192.100.100.81"
xmlhttp.setRequestHeader "Content-Length",LEN(SoapRequest)
xmlhttp.setRequestHeader "SOAPAction", "http://tempuri.org/LoginByAccount" ‘一定要與WEBSERVICE的名稱空間相同，否則服務會拒絕
xmlhttp.Send(SoapRequest)
‘這樣就利用XMLHTTP成功傳送了與SOAP示例所符的SOAP請求.
‘檢測一下是否成功：
Response.Write xmlhttp.Status&” ”
Response.Write xmlhttp.StatusText
Set xmlhttp = Nothing
%>
如果成功會顯示200 ok,不成功會顯示 500 內部伺服器錯誤? Connection: keep-alive .
成功後就可以利用WEBSERVICE的響應，如下：
SOAP響應示例
下面是一個 SOAP 響應示例。所顯示的佔位符需要由實際值替換。
HTTP/1.1 200 OK
Content-Type: text/xml; charset=utf-8
Content-Length: length

http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">

http://tempuri.org/">
string



這是與剛才SOAP請求示例所對應的SOAP響應示例,在成功傳送請求後，就可以檢視該響應 ：
If xmlhttp.Status = 200 Then

Set xmlDOC =server.CreateObject("MSXML.DOMDocument")
xmlDOC.load(xmlhttp.responseXML)
xmlStr = xmlDOC.xml
Set xmlDOC=nothing
xmlStr = Replace(xmlStr,"xmlStr = Replace(xmlStr,">",">")
Response.write xmlStr
Else

Response.Write xmlhttp.Status&" "
Response.Write xmlhttp.StatusText

End if
請求正確則給出完整響應，請求不正確（如賬號，密碼不對）響應的內容就會資訊不完整.
取出響應裡的資料，如下：
If xmlhttp.Status = 200 Then

Set xmlDOC = server.CreateObject("MSXML.DOMDocument")
xmlDOC.load(xmlhttp.responseXML)
Response.Write xmlDOC.documentElement.selectNodes("//LoginByAccountResult")(0).text ‘顯示節點為LoginByAccountResult的資料(有編碼則要解碼)
Set xmlDOC = nothing

Else

Response.Write xmlhttp.Status&" "
Response.Write xmlhttp.StatusText

End if

顯示某節點各個屬性和資料的FUNCTION：

Function showallnode(rootname,myxmlDOC)'望大家不斷完鄯 2005-1-9 writed by 844
if rootname<>"" then

set nodeobj=myxmlDOC.documentElement.selectSingleNode("//"&rootname&"")'當前結點對像
nodeAttributelen=myxmlDOC.documentElement.selectSingleNode("//"&rootname&"").attributes.length'當前結點屬性數

returnstring=returnstring&"
節點名稱："&rootname

if nodeobj.text<>"" then
returnstring=returnstring&"
節點的文字：("&nodeobj.text&")"
end if

returnstring=returnstring&"
{
"

if nodeAttributelen<>0 then
returnstring=returnstring&"
屬性數有  "&nodeAttributelen&" 個,分別是：" 
end if

for i=0 to nodeAttributelen-1
returnstring=returnstring&"

if nodeobj.childNodes.Length<>0 then
if nodeobj.hasChildNodes() and lcase(nodeobj.childNodes.item(0).nodeName)<>"#text" then'是否有子節點
set childnodeobj=nodeobj.childNodes
childnodelen=nodeobj.childNodes.Length
returnstring=returnstring&"

有 "&childnodelen&" 個子節點;
分別是: "
for i=0 to childnodelen-1
returnstring=returnstring&"

returnstring=returnstring&"
}
"
response.write returnstring
set nodeobj=nothing
end if
End Function

可以這樣用：
If xmlhttp.Status = 200 Then

Set xmlDOC = server.CreateObject("MSXML.DOMDocument")
xmlDOC.load(xmlhttp.responseXML) 
showallnode "LoginByAccountResponse",xmlDOC’呼叫SHOWALLNODE
Set xmlDOC = nothing

Else

Response.Write xmlhttp.Status&" "
Response.Write xmlhttp.StatusText

End if

二．POST請求示例
HTTP POST
下面是一個 HTTP POST 請求示例。所顯示的佔位符需要由實際值替換。
POST /WebService1/UserSignOn.asmx/LoginByAccount HTTP/1.1
Host: 192.100.100.81
Content-Type: application/x-www-form-urlencoded
Content-Length: length

username=string&password=string
構造POST請求:
url = "http://192.100.100.81/WebService1/UserSignOn.asmx/LoginByAccount"

SoapRequest="username="&username&"&password="&password

Set xmlhttp = server.CreateObject("Msxml2.XMLHTTP")
xmlhttp.Open "POST",url,false
xmlhttp.setRequestHeader "Content-Type", "application/x-www-form-urlencoded"’注意
xmlhttp.setRequestHeader "HOST","192.100.100.81"
xmlhttp.setRequestHeader "Content-Length",LEN(SoapRequest)

xmlhttp.Send(SoapRequest)
‘這樣就利用XMLHTTP成功傳送了與HTTP POST示例所符的POST請求.
‘檢測一下是否成功：
Response.Write xmlhttp.Status&” ”
Response.Write xmlhttp.StatusText
Set xmlhttp = Nothing
%>
如果成功會顯示200 ok,不成功會顯示 500 內部伺服器錯誤? Connection: keep-alive .
成功後就可以利用WEBSERVICE的響應，如下：
HTTP POST
下面是一個 HTTP POST 響應示例。所顯示的佔位符需要由實際值替換。
HTTP/1.1 200 OK
Content-Type: text/xml; charset=utf-8
Content-Length: length

http://tempuri.org/">string>

顯示：
If xmlhttp.Status = 200 Then

Set xmlDOC = server.CreateObject("MSXML.DOMDocument")
xmlDOC.load(xmlhttp.responseXML) 
showallnode "string",xmlDOC'呼叫SHOWALLNODE
Set xmlDOC = nothing

Else

Response.Write xmlhttp.Status&" "
Response.Write xmlhttp.StatusText

End if