我希望在msi安装程序进行重大升级时保留配置文件。对于配置文件，我在安装时进行了更改。代码如下：
<Component Id="MODIFYCONFIG" Guid="6A1D7762-B707-4084-A01F-6F936CC159CE" Win64="yes">
<File Id="Application.config" Name="Application.config" Vital="yes" KeyPath="yes" Source="Resource\Application.config"></File>
<util:XmlFile Id="SetValueIP" Action="setValue" Permanent="yes" File="[#Application.config]"
ElementPath="/configuration/applicationSettings/Application.Properties.Settings/setting[\[]@name='IpAddress'[\]]/value" Value="[IPADDRESS]" Sequence="1"/>
<util:XmlFile Id="SetValuePort" Action="setValue" Permanent="yes" File="[#Application.config]"
ElementPath="/configuration/applicationSettings/Application.Properties.Settings/setting[\[]@name='IpPort'[\]]/value" Value="[PORT]" Sequence="2"/>
<Condition>Not Installed</Condition>
</Component>
<Component Id="KEEPCONFIG" Guid="F7F173AA-C2FD-4017-BFBC-B81852A671E7" Win64="yes">
<RemoveFile Id="ApplicationConfig" Name="Application.config" On="uninstall"/>
<Condition>(REMOVE=ALL) AND (NOT UPGRADINGPRODUCTCODE)</Condition>
</Component>
但是当发生重大升级时，文件不会被保留。如何保留修改后的文件？
答案 0 :(得分：12)
这为我解决了...配置文件保留了次要/主要升级，并在卸载时完全删除。
参考：http://blogs.msdn.com/b/astebner/archive/2008/10/19/9006538.aspx
编辑：来自链接页面的汇总信息......
答案 1 :(得分：9)
升级时有3个选项：
最好的选择是记住我的财产，因为这个问题最少。
答案 2 :(得分：2)
我花了一段时间，但这是我自己解决的方法。这可能是caveman_dick第三种选择的变种。
1）在UISequence中添加新操作以备份当前配置文件。您可以使用自定义操作和ComponentSearch的魔力来实际定位文件。
2）稍后在ExecuteSequence中恢复文件。
<Binary Id="CustomActions.CA.dll" SourceFile="..\CustomActions\bin\$(var.Configuration)\CustomActions.CA.dll" />
<CustomAction Id="BackupConfigFile"
Return="check"
BinaryKey="CustomActions.CA.dll"
DllEntry="BackupFile" />
<CustomAction Id="RestoreConfigFile"
Return="check"
Execute="deferred"
Impersonate="no"
BinaryKey="CustomActions.CA.dll"
DllEntry="RestoreFile" />
<CustomAction Id="PropertyDelegator"
Property="RestoreConfigFile"
Value="MYTARGET=[MYTARGET];FILENAME_TO_BACKUP=[FILENAME_TO_BACKUP]" />
<Property Id="FILENAME_TO_BACKUP" Value="test.exe.config" />
<Property Id="PREVIOUS_PATH">
<ComponentSearch Id="evSearch" Guid="{010447A6-3330-41BB-8A7A-70D08ADB35E4}" />
</Property>
这里是我写的快速CustomAction.cs：
[CustomAction]
public static ActionResult BackupFile(Session session)
{
try
{
// check out if the previous installation has our file included
// and if it does,
// then make copy of it.
var previousInstallationPath = session["PREVIOUS_PATH"];
var fileToBackup = session["FILENAME_TO_BACKUP"];
if (!string.IsNullOrEmpty(previousInstallationPath) && !string.IsNullOrEmpty(fileToBackup))
{
var absolutePath = Path.Combine(previousInstallationPath, fileToBackup);
if (File.Exists(absolutePath))
{
var destinationPath = Path.Combine(Path.GetTempPath(),
string.Concat(fileToBackup, _MODIFIER));
File.Copy(absolutePath, destinationPath);
}
}
}
catch (Exception e)
{
session.Log("Couldn't backup previous file: {0}", e);
}
return ActionResult.Success;
}
[CustomAction]
public static ActionResult RestoreFile(Session session)
{
try
{
// check if our CustomAction made backup of file,
// and if it indeed exists in temp path, then
// we basically copy it back.
var currentInstallationPath = session.CustomActionData["MYTARGET"];
var fileToRestore = session.CustomActionData["FILENAME_TO_BACKUP"];
var fileOriginalContentPath = Path.Combine(Path.GetTempPath(),
string.Concat(fileToRestore, _MODIFIER));
if (File.Exists(fileOriginalContentPath))
{
var destinationFile = Path.Combine(currentInstallationPath, fileToRestore);
if (File.Exists(destinationFile))
File.Delete(destinationFile);
File.Move(fileOriginalContentPath, destinationFile);
}
}
catch (Exception e)
{
session.Log("Couldn't restore previous file: {0}", e);
}
return ActionResult.Success;
}
实际定义序列：
<InstallUISequence>
<Custom Action="BackupConfigFile" After="AppSearch"></Custom>
</InstallUISequence>
<InstallExecuteSequence>
<Custom Action="PropertyDelegator" Before="RestoreConfigFile" />
<Custom Action="RestoreConfigFile" After="InstallFiles"></Custom>
</InstallExecuteSequence>
尚未彻底测试，但似乎现在正在做这项工作。警告：Temp文件夹可能会改变？！
或者，我从互联网上找到了这个，但没有测试过它。
<!-- Support Upgrading the Product -->
<Upgrade Id="{B0FB80ED-249E-4946-87A2-08A5BCA36E7E}">
<UpgradeVersion Minimum="$(var.Version)"
OnlyDetect="yes" Property="NEWERVERSIONDETECTED" />
<UpgradeVersion Minimum="0.0.0"
Maximum="$(var.Version)" IncludeMinimum="yes"
IncludeMaximum="no"
Property="OLDERVERSIONBEINGUPGRADED" />
</Upgrade>
<Property Id="OLDERVERSIONBEINGUPGRADED" Secure="yes" />
<!-- Action to save and Restore the Config-File on reinstall
-->
<!-- We're using CAQuietExec to prevent DOS-Boxes from
popping up -->
<CustomAction Id="SetQtCmdLineCopy" Property="QtExecCmdLine"
Value=""[SystemFolder]cmd.exe" /c copy
"[INSTALLDIR]MyApp.exe.config"
"[INSTALLDIR]config.bak"" />
<CustomAction Id="QtCmdCopy" BinaryKey="WixCA"
DllEntry="CAQuietExec" Execute="immediate" />
<CustomAction Id="SetQtCmdLineRestore"
Property="QtCmdRestore" Value=""[SystemFolder]cmd.exe" /c move
/Y "[INSTALLDIR]config.bak"
"[INSTALLDIR]MyApp.exe.config"" />
<CustomAction Id="QtCmdRestore" Execute="commit"
BinaryKey="WixCA" DllEntry="CAQuietExec" />
<!-- These actions will run only for a major upgrade -->
<InstallExecuteSequence>
<Custom Action="SetQtCmdLineCopy"
After="InstallInitialize"> NOT (OLDERVERSIONBEINGUPGRADED = "")</Custom>
<Custom Action="QtCmdCopy"
After="SetQtCmdLineCopy">NOT (OLDERVERSIONBEINGUPGRADED = "")</Custom>
<Custom Action="SetQtCmdLineRestore"
Before="InstallFinalize">NOT (OLDERVERSIONBEINGUPGRADED = "")</Custom>
<Custom Action="QtCmdRestore"
After="SetQtCmdLineRestore">NOT (OLDERVERSIONBEINGUPGRADED =
"")</Custom>
</InstallExecuteSequence>
答案 3 :(得分：1)
还有另一种选择，但它可能不适用于您的方案 - 这完全取决于谁最初运行您的安装程序...
如果您的应用程序是通过网络下载的，那么我们通常会使用caveman_dick记住属性模式。
但是，我们有几套产品总是由我们自己的安装人员安装，他们访问客户站点。在这种情况下，根本不要在安装程序中包含配置文件！
简单地说 - 如果安装程序不知道某个文件，那么它就不会卸载它！
在这种情况下，您可以选择安装团队创建和配置配置文件，或者在不存在的情况下创建应用程序，然后向用户询问值。
如前所述，在某些情况下这不是一个选项，但它对我们的工作正常。
答案 4 :(得分：0)
在MajorUpgrade中添加Schedule="afterInstallExecuteAgain"
<MajorUpgrade DowngradeErrorMessage="A newer version of [ProductName] is already installed." Schedule="afterInstallExecuteAgain" />
对我有用