我在 Visual Studio 中有一个带有一个参数的 Web 服务解决方案：
Public Function CheckPalletInLocation(location As String) As String
Dim ScaleConnnection As New SqlClient.SqlConnection("MYCONNEXION")
Dim ScaleCommand As New SqlClient.SqlCommand
ScaleCommand.Connection = ScaleConnnection
ScaleConnnection.Open()
ScaleCommand.CommandText = "SELECT DISTINCT LOGISTICS_UNIT FROM LOCATION_INVENTORY WHERE LOCATION = '" &
location & "'"
Return ScaleCommand.ExecuteScalar()
ScaleConnnection.Close()
'Return "True"
End Function
当我启动解决方案时，网络服务就可以工作。它返回值。 现在我想用ajax代码在HTML页面中调用它:
<pre><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0//EN">
<HTML>
<HEAD>
<title>TEST WEB SERVICE</title>
<script type="text/javascript" src="jquery-3.4.1.js"></script>
</HEAD>
<BODY onload="Click_BB();">PAGE
<script>
function Click_BB()
{
$.ajax({
type: 'post',
url: 'https://localhost:44341/WebService1.asmx?op=CheckPalletInLocation',
contentType: "application/xml",
data: { location: '110-01-03-10' },
success: function (d)
{
alert(d);
},
failure: function (response)
{
debugger;
alert(response.d);
}
});
}
</script>
</BODY>
</HTML>
我在响应页面中总是出现此错误：
<?xml version="1.0" encoding="utf-8"?><soap:Envelope xmlns:soap="http://www.w3.org/2003/05/soap-envelope" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"><soap:Body><soap:Fault><soap:Code><soap:Value>soap:Receiver</soap:Value></soap:Code><soap:Reason><soap:Text xml:lang="fr">System.Web.Services.Protocols.SoapException: Le serveur n'a pas pu traiter la demande. ---> System.Xml.XmlException: Données non valides au niveau racine. Ligne 1, position 1.
我翻译：服务器无法处理。数据根无效，第 1 行位置 1
有人可以帮忙吗？
谢谢
我尝试更改 AJAX 代码，我希望在 HTML 页面中获得 Web 服务的结果。到现在为止我的错误是500
您想要将带有正确位置数据的 XML（SOAP 信封）发送到服务器：
添加一个包含有效
soap-envelopeClick_BBdataType: "xml",data: soapMessage, function Click_BB()
{
$.ajax({
type: 'post',
url: 'https://localhost:44341/WebService1.asmx?op=CheckPalletInLocation',
contentType: "application/xml",
dataType: "xml",
data: soapMessage,
success: function (d)
{
alert(d);
},
failure: function (response)
{
debugger;
alert(response.d);
}
});
}