类似于如何在ASP.NET中拥有多个Web.config,是否可以拥有多个App.config,具体取决于构建配置?
我想更改连接字符串,因此如果我正在构建配置test
,则连接字符串应为:
"Server=test;Initial Catalog=test..."
如果我针对test2
构建,则连接字符串将为:
"Server=anotherserver; Initial Catalog=test2..."
目前,我是手动完成的,所以我想知道如何实现自动化?
答案 0 :(得分:1)
虽然它们不是本机支持,但您也可以为Windows Forms项目(App.config)进行XML转换,而不仅仅是Web应用程序项目。
有一个VS插件可以启用支持,虽然我从来没有尝试过,但我会推荐你安装了VS的环境,因为至少有一位我确信拥有深厚知识的微软员工在MSBuild上,因为他已经创作了book on the subject。
我不知道SlowCheetah是否为未安装VS的CI服务器提供支持,因此我还会根据自定义目标文件的内容提出另一种解决方案。
Visual Studio App.config XML Transformation
(无耻的插件通知,我是上面那个的原作者)
答案 1 :(得分:0)
我们在这里使用似乎运作良好的策略。我们每个解决方案都有一个Web.config。我认为这也适用于app.configs,但从未尝试过。您创建一个类,称之为例如ConfigurationManager。在课堂上应该去这个代码:
public static class ConfigurationManager
{
private static NameValueCollection _appSettings = new NameValueCollection();
private static ConnectionStringSettingsCollection _connSettings = new ConnectionStringSettingsCollection();
private enum SettingsType {App, Connection};
public static NameValueCollection AppSettings
{
get
{
if (_appSettings.Count == 0)
{
LoadEnvironmentSettings(SettingsType.App);
}
return _appSettings;
}
}
public static ConnectionStringSettingsCollection ConnectionStrings
{
get
{
if (_connSettings.Count == 0)
{
LoadEnvironmentSettings(SettingsType.Connection);
}
return _connSettings;
}
}
private static void LoadEnvironmentSettings(SettingsType settingsType)
{
string strEnvironment = string.Empty, strSeparator = ".";
if (ConfigurationManager.AppSettings.HasKeys())
{
strEnvironment = ConfigurationManager.AppSettings["Environment"];
if (!String.IsNullOrEmpty(strEnvironment))
{
strEnvironment += strSeparator;
switch (settingsType)
{
case SettingsType.App:
LoadAppSettings(strEnvironment.ToUpper());
break;
case SettingsType.Connection:
LoadConnectionSettings(strEnvironment.ToUpper());
break;
}
}
else //that part should never happen
{
throw new Exception("Missing Environment AppSetting");
}
}
}
private static void LoadAppSettings(string environmentType)
{
string appKey = string.Empty;
foreach (string key in ConfigurationManager.AppSettings.AllKeys)
{
if (key.StartsWith(environmentType))
{
appKey = key.Replace(environmentType, string.Empty);
_appSettings.Add(appKey, ConfigurationManager.AppSettings[key]);
}
}
}
private static void LoadConnectionSettings(string environmentType)
{
//ConnectionStringSettings connStrings = new ConnectionStringSettings();
string connKey = string.Empty;
foreach (ConnectionStringSettings str in ConfigurationManager.ConnectionStrings)
{
if (str.Name.StartsWith(environmentType))
{
connKey = str.Name.Replace(environmentType, string.Empty);
_connSettings.Add(new ConnectionStringSettings(connKey, str.ConnectionString));
}
}
}
}
您需要添加System,System.Collections.Generic,System.Collections.Specialized,System.Configuration和System.Text。确保您的类与您正在处理的项目位于相同的命名空间中。然后,在配置文件中添加两个(或更多)键,例如,
<add name="TEST.MyConnectionString" connectionString="Data Source=TESTServer;Initial Catalog=MyDatabase;user id=MyUser;pwd=Mypwd" />
<add name="TEST2.MyConnectionString" connectionString="Data Source=TEST2Server;Initial Catalog=MyDatabase;user id=MyUser;pwd=Mypwd" />
最后,在您的machine.config中,在appSettings中添加以下内容:
<add key="Environment" value="TEST"/>
或
<add key="Environment" value="TEST2"/>
取决于您想要做什么。我们通常放置DEV,STAGING和PROD键,然后在我们的三个不同的DEV,STAGING和PROD服务器上有不同的machine.config文件。希望这有帮助