Question

我目前正在将IConfigFileSettings的具体ConfigFileSettings注入需要连接字符串名称的类中。简化代码如下：

public interface IConfigFileSettings
{
    string GetConnectionString(string name);
}

public class ConfigFileSettings : IConfigFileSettings
{
    public string GetConnectionString(string name)
    {
        return ConfigurationManager.ConnectionStrings[name].Name;
    }
}

这适用于在iis，Windows服务和控制台应用程序中托管的webapi。我想：

ConfigurationManager.ConnectionStrings[name].Name

不适用于工作人员角色。我是否可以调整GetConnectionString方法以使其在所有环境中透明地工作？即使我得到连接sting名称（例如来自.cscfg文件），我的代码也会查找：

<connectionStrings> ... </connectionStrings>

我想我不能只在.cscfg文件中添加一个条目？

Answer 1

您可以将它们放在.cscfg文件中，如：

<?xml version="1.0"?>
<ServiceConfiguration serviceName="Web.Azure" xmlns="http://schemas.microsoft.com/ServiceHosting/2008/10/ServiceConfiguration" osFamily="3" osVersion="*" schemaVersion="2013-03.2.0">
  <Role name="Worker">
    <Instances count="2" />
    <ConfigurationSettings>
      <Setting name="connectionstringname" value="connectionstringvalue" />
    </ConfigurationSettings>
  </Role>
</ServiceConfiguration>

然后你可以通过以下方式阅读：

var connectionstring = RoleEnvironment.GetConfigurationSettingValue("connectionstringname");

Answer 2

用This is a small utility for strong typed config in azure实施

Castle Windsor DictionaryAdapter。我在我的项目中使用它。用法：

稍微探索一下代码以获得想法
定义强类型配置接口 - 查看Configuration.Interfaces程序集
在合成根目录中定义工厂/使用azure config provider并使用字典适配器填充配置字典 -

像在MyWorkerService.cs中一样注入您的配置

使用Configuration.Interfaces; 使用Persistence.Interfaces; 使用Worker.Services.Interfaces;

命名空间Worker.Services { 公共类MyWorkerService：IMyWorkerService { private readonly IConnectionStrings _connectionStrings; private readonly IAzureServiceConfiguration _azureServiceConfiguration; 私人只读IMicrosoftStorageConfig _microsoftStorageConfig; private readonly IPersitenceServiceConfigDependent _persitenceServiceConfigDependent; private readonly IAppConfigSettings _appConfigSettings;

public MyWorkerService(
    IPersitenceServiceConfigDependent persitenceServiceConfigDependent,

    IConnectionStrings connectionStrings,
    IAzureServiceConfiguration azureServiceConfiguration,
    IMicrosoftStorageConfig microsoftStorageConfig,
    IAppConfigSettings appConfigSettings)
{
    _connectionStrings = connectionStrings;
    _azureServiceConfiguration = azureServiceConfiguration;
    _microsoftStorageConfig = microsoftStorageConfig;
    _persitenceServiceConfigDependent = persitenceServiceConfigDependent;
    _appConfigSettings = appConfigSettings;
}

public string DoWork()
{
    _persitenceServiceConfigDependent.ConfigDependentAction("blah");
    var configSetting = _microsoftStorageConfig.StorageConnectionString;
    return $"Job done :" +
           $" <br> msConfig : {configSetting}, " +
           $" <br> azureConfig.ServiceBusConnectionString:{_azureServiceConfiguration.ServiceBusConnectionString} " +
           $" <br> webConfig.SubscriptionId:{_appConfigSettings.SubscriptionId} " +
           $" <br> connectionStrings.DefaultConnection :{_connectionStrings.DefaultConnection}";
}

} }

获取azure worker角色

2 个答案: