我有一个VB。4.7.2净桌面应用程序偶尔抛出异常。例外情况通常是"缺少根元素"。
,当这一切发生的时候,我能查看文件和根元素是。
该文件由远程Linux系统写入共享，并由该应用程序通过SMB共享访问。
我认为可能有一个时间问题的文件被写入共享，所以我实现了重试，我仍然得到相同的异常后尝试3次，间隔10秒。
xmlPath作为参数传入。
' xmlPath is the UNC path to a local network share.
Dim xmlDoc As New XmlDocument()
xmlDoc.Load(xmlPath)
当我在文件位置查看XML文件时，我看到的是:
<reportrequest Version="1.0">
<report ReportGUID="xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx" ReportCode="LENDPG_1" ABSReportCode="" Title="Lender Portal Collateral Screen Basic" Description="CS Basic Report" Price="0">
<account AccountNumber="6551198" Address="000 Main St" City="Spokane" State="WA" ZipCode="99201" />
<contact FirstName="Person" LastName="Ordering" Email="person@domain.com" Phone="000-000-0000" />
<outputtypecoll>
<outputtype Type="XML" FileName="" />
</outputtypecoll>
<featurecoll>
<feature Name="CSRDISTANCE" Value="false" />
<feature Name="CSRDBSTATUS" Value="false" />
<feature Name="CSRELEVATION" Value="false" />
<feature Name="FINDTP" Value="TRUE" />
<feature Name="DETAILS" Value="TRUE" />
</featurecoll>
<targetpropertycoll>
<targetproperty SiteIndex="0" PropertyGUID="xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx" ExternalPropertyGUID="xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx" MonitoringGUID="xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx" PortfolioGUID="xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx" OrderGUID="xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx" PropertyName="My Property" Address="1 Wherever Ave" City="Sometown" State="CA" ZipCode="99999" Latitude="30.111111" Longitude="-110.88888">
<georeferenced Address="My Property" City="Sometown" State="CA" ZipCode="99999" Latitude="30.111111" Longitude="-110.88888" Fips="" County="" PostalCity="" />
<searchdistancecoll SetID="0000" SetName="LendPort Collateral" MaxDistance="5280" />
<edrdatacoll>
<edrdata Name="REPORTCOST" Value="0.00" />
<edrdata Name="BORROWER" Value="" />
<edrdata Name="LOANTYPE" Value="Other" />
<edrdata Name="LOANNUMBER" Value="" />
<edrdata Name="PROPERTYTYPE" Value="" />
<edrdata Name="DESTHOST" Value="www.xxxxxxxxxxx.com" />
</edrdatacoll>
</targetproperty>
</targetpropertycoll>
</report>
</reportrequest>
这当然有一个根元素。
是什么导致了这个看似虚假的异常?
尝试将此添加为文件的第一行
<?xml version="1.0" encoding="UTF-8"?>
编辑:
改变这
Dim xmlDoc As New XmlDocument()
xmlDoc.Load(xmlPath)
Dim xmlDoc As New XmlDocument()
Try
xmlDoc.Load(xmlPath)
Catch ex As Exception
Dim xe As XElement
xe = XElement.Load(xmlPath)
Stop
End Try