MSDeploy - 允许参数在parameters.xml中为optional / empty

时间:2014-09-04 11:07:04

标签: c# asp.net-mvc teamcity msdeploy web-config

我正在使用通过部署网络应用程序。

我正在使用paramaters.xml文件来操作我的应用,特别是应用settings部分。

我有一些设置,其中只有特定环境的值才有效,其余时间值应该为空(即,属性应该只有生产值)。但是,当我指定值时,MSDeploy会给我这个例外:

 Microsoft.Web.Deployment.DeploymentException: 
   The 'facebookUserToken' argument cannot be null or empty.
   at Microsoft.Web.Deployment.DeploymentSyncParameterValidation.Validate(String parameterName, String parameterValue)
   at Microsoft.Web.Deployment.DeploymentSyncParameter.set_Value(String value)
   at Microsoft.Web.Deployment.DeploymentSyncParameterCollection.LoadFromFile(XPathNavigator nav, String fileName, Boolean ignoreExtraSetParameters)
   at Microsoft.Web.Deployment.DeploymentSyncParameterCollection.Load(Stream stream, String fileName, Boolean ignoreExtraSetParameters)
   at Microsoft.Web.Deployment.DeploymentSyncParameterCollection.Load(String fileName, Boolean ignoreExtraSetParameters)
   at MSDeploy.MSDeploy.HandleSetParameters(DeploymentObject sourceObject, Random random)
   at MSDeploy.MSDeploy.ExecuteWorker()
   at MSDeploy.MSDeploy.Execute()
   at MSDeploy.MSDeploy.Main(String[] unusedArgs)

如何配置MSDeploy以允许参数具有空值?

的web.config:

<applicationSettings>
    <SO.Example>
        <setting name="FacebookUserToken" serializeAs="String">
           <value></value>
        </setting>
    </SO.Example>
</applicationSettings>

parameters.config:

   <parameter name="facebookUserToken" description="" defaultValue="">   
      <parameterEntry kind="XmlFile" scope="Web.config"
      match="XPath removed for readability">
       </parameterEntry>
   </parameter>

2 个答案:

答案 0 :(得分:35)

我在一段时间后遇到了这个问题,并在Richard Szalay's blog找到了解决方案。您需要将 parameterValidation 添加到参数声明中:

<parameters> 
   <parameter name="ReplaceVariable"
          description="Sample variable that allows empty values" defaultValue="">
     <parameterValidation kind="AllowEmpty" />
     <parameterEntry type="TextFile" scope="Web\.config$" match="TextToReplace" /> 
   </parameter> 
</parameters> 

因此,对于您的具体案例:

  <parameter name="facebookUserToken" description="" defaultValue="">   
      <parameterValidation kind="AllowEmpty"/>
      <parameterEntry kind="XmlFile" scope="Web.config"
      match="XPath removed for readability">
       </parameterEntry>
   </parameter>

答案 1 :(得分:4)

我认为您正在寻找<parameterValidation />

在你的parameters.config中:

<parameter name="facebookUserToken" description="" defaultValue=""> 
    <parameterValidation kind="AllowEmpty" />  
    <parameterEntry kind="XmlFile" scope="Web.config"
       match="XPath removed for readability">
    </parameterEntry>
</parameter>