我一直在尝试使用 Azure-Functions 中的 .config 文件。
如果我写这个函数
using System;
using System.Configuration;
using System.Net;
using System.Net.Http;
using System.Threading.Tasks;
using Microsoft.Azure.WebJobs;
using Microsoft.Azure.WebJobs.Extensions.Http;
using Microsoft.Azure.WebJobs.Host;
namespace GranadaCoder.AzurePoc.AzureFunctionsOne
{
public static class AppSettingsTestOne
{
[FunctionName("AppSettingsTestOneFunctionName")]
public static async Task<HttpResponseMessage> Run([HttpTrigger(AuthorizationLevel.Function, "post", Route = null)]HttpRequestMessage req, TraceWriter log)
{
try
{
string rootDirectory = string.Empty;
if (!string.IsNullOrEmpty(Environment.GetEnvironmentVariable("HOME")))
{
/* running in azure */
rootDirectory = Environment.GetEnvironmentVariable("HOME") + "\\site\\wwwroot";
}
else
{
/* in visual studio, local debugging */
rootDirectory = ".";
}
string path = rootDirectory + @"\CustomConfigFiles\CustomAppSettings.config";
if (!System.IO.File.Exists(path))
{
throw new System.IO.FileNotFoundException(string.Format("NOT FOUND!!! ('{0}')", path));
}
else
{
log.Info(string.Format("File exists='{0}'", path));
}
ExeConfigurationFileMap map = new ExeConfigurationFileMap { ExeConfigFilename = path };
Configuration config = ConfigurationManager.OpenMappedExeConfiguration(map, ConfigurationUserLevel.None);
Configuration fileConfig = ConfigurationManager.OpenExeConfiguration(path); /* does NOT work */
string val1 = config.AppSettings.Settings["KeyOne"].Value;
string val2 = config.AppSettings.Settings["KeyTwo"].Value;
string val3 = config.AppSettings.Settings["KeyThree"].Value;
string msg = string.Join(",", val1, val2, val3);
return req.CreateResponse(HttpStatusCode.OK, msg);
}
catch (Exception ex)
{
string errorMsg = ex.Message; // ExceptionHelper.GenerateFullFlatMessage(ex);
log.Error(errorMsg);
return req.CreateResponse(HttpStatusCode.BadRequest, errorMsg);
}
}
}
}
使用此 .config 文件 (CustomAppSettings.config)
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<appSettings>
<add key="KeyOne" value="ValueOne" />
<add key="KeyTwo" value="ValueTwo" />
<add key="KeyThree" value="ValueThree" />
</appSettings>
</configuration>
它按预期工作。
如果我使用这个功能:
using System;
using System.Collections.Specialized;
using System.Configuration;
using System.IO;
using System.Linq;
using System.Net;
using System.Net.Http;
using System.Threading.Tasks;
using System.Xml;
using Microsoft.Azure.WebJobs;
using Microsoft.Azure.WebJobs.Extensions.Http;
using Microsoft.Azure.WebJobs.Host;
namespace GranadaCoder.AzurePoc.AzureFunctionsOne
{
public static class NameValuePairAppSettingsTest
{
[FunctionName("NameValuePairAppSettingsTestFunctionName")]
public static async Task<HttpResponseMessage> Run([HttpTrigger(AuthorizationLevel.Function, "post", Route = null)]HttpRequestMessage req, TraceWriter log)
{
try
{
string rootDirectory = string.Empty;
if (!string.IsNullOrEmpty(Environment.GetEnvironmentVariable("HOME")))
{
/* running in azure */
rootDirectory = Environment.GetEnvironmentVariable("HOME") + "\\site\\wwwroot";
}
else
{
/* in visual studio, local debugging */
rootDirectory = ".";
}
string path = rootDirectory + @"\CustomConfigFiles\NameValuePairSettings.config";
if (!System.IO.File.Exists(path))
{
throw new System.IO.FileNotFoundException(string.Format("NOT FOUND!!! ('{0}')", path));
}
else
{
log.Info(string.Format("file exists='{0}'", path));
}
ExeConfigurationFileMap map = new ExeConfigurationFileMap { ExeConfigFilename = path };
Configuration config = ConfigurationManager.OpenMappedExeConfiguration(map, ConfigurationUserLevel.None);
//NameValueCollection nvc = (NameValueCollection)config.GetSection("myLittleArea"); /* does not work */
ConfigurationSection myParamsSection = config.GetSection("myLittleArea");
/* see https://stackoverflow.com/questions/13825323/how-do-i-get-the-values-from-a-configsection-defined-as-namevaluesectionhandler */
string myParamsSectionRawXml = myParamsSection.SectionInformation.GetRawXml();
XmlDocument sectionXmlDoc = new XmlDocument();
sectionXmlDoc.Load(new StringReader(myParamsSectionRawXml));
NameValueSectionHandler handler = new NameValueSectionHandler();
NameValueCollection nvc = handler.Create(null, null, sectionXmlDoc.DocumentElement) as NameValueCollection;
var items = nvc.AllKeys.SelectMany(nvc.GetValues, (k, v) => new { key = k, value = v });
////////foreach (var item in items)
////////{
//////// Console.WriteLine("{0} {1}", item.key, item.value);
////////}
string msg = string.Join(",", items.ToList());
return req.CreateResponse(HttpStatusCode.OK, msg);
}
catch (Exception ex)
{
string errorMsg = ex.Message; // ExceptionHelper.GenerateFullFlatMessage(ex);
log.Error(errorMsg);
return req.CreateResponse(HttpStatusCode.BadRequest, errorMsg);
}
}
}
}
使用此 .config 文件 (NameValuePairSettings.config)
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<configSections>
<section name="myLittleArea" type="System.Configuration.NameValueSectionHandler, System, Version=1.0.5000.0,Culture=neutral, PublicKeyToken=b77a5c561934e089" />
</configSections>
<myLittleArea>
<add key="color" value="red"/>
<add key="street" value="main"/>
<add key="month" value="july"/>
<add key="candy" value="snickers"/>
</myLittleArea>
</configuration>
一切正常。
(击鼓)。
如果我创建一个自定义配置部分。
using System.Configuration;
namespace GranadaCoder.AzurePoc.ConfigurationLibrary.MyCustomConfigurationSettings
{
public static class MyCustomConfigurationSettingsConfigurationRetriever
{
public static readonly string ConfigurationSectionName = "MyCustomConfigurationSettingsConfigurationSectionName";
/*
public static MyCustomConfigurationSettingsConfigurationSection GetMyCustomConfigurationSettings()
{
MyCustomConfigurationSettingsConfigurationSection returnSection = (MyCustomConfigurationSettingsConfigurationSection)ConfigurationManager.GetSection(ConfigurationSectionName);
if (returnSection != null)
{
return returnSection;
}
return null;
}
*/
public static MyCustomConfigurationSettingsConfigurationSection GetMyCustomConfigurationSettings(System.Configuration.Configuration cfg)
{
MyCustomConfigurationSettingsConfigurationSection returnSection = (MyCustomConfigurationSettingsConfigurationSection)cfg.GetSection(ConfigurationSectionName);
if (returnSection != null)
{
return returnSection;
}
return null;
}
}
}
和
using System.Configuration;
namespace GranadaCoder.AzurePoc.ConfigurationLibrary.MyCustomConfigurationSettings
{
public class MyCustomConfigurationSettingsConfigurationSection : ConfigurationSection
{
private const string FavoriteNumberPropertyName = "FavoriteNumber";
private const string FavoriteColorPropertyName = "FavoriteColor";
[ConfigurationProperty(FavoriteNumberPropertyName, IsRequired = true, DefaultValue = 100)]
public int FavoriteNumber
{
get
{
return (int)this[FavoriteNumberPropertyName];
}
}
[ConfigurationProperty(FavoriteColorPropertyName, IsRequired = true, DefaultValue = ",")]
public string FavoriteColor
{
get
{
return (string)this[FavoriteColorPropertyName];
}
}
}
}
和 .config (MyCustomConfigurationSettings.config)
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<configSections>
<section name ="MyCustomConfigurationSettingsConfigurationSectionName" type="GranadaCoder.AzurePoc.ConfigurationLibrary.MyCustomConfigurationSettings.MyCustomConfigurationSettingsConfigurationSection, GranadaCoder.AzurePoc.ConfigurationLibrary" />
</configSections>
<MyCustomConfigurationSettingsConfigurationSectionName
FavoriteNumber="333"
FavoriteColor="Green"
>
</MyCustomConfigurationSettingsConfigurationSectionName>
</configuration>
和天蓝色的功能代码
using System;
using System.Configuration;
using System.Net;
using System.Net.Http;
using System.Threading.Tasks;
using Microsoft.Azure.WebJobs;
using Microsoft.Azure.WebJobs.Extensions.Http;
using Microsoft.Azure.WebJobs.Host;
using GranadaCoder.AzurePoc.ConfigurationLibrary.MyCustomConfigurationSettings;
namespace GranadaCoder.AzurePoc.AzureFunctionsOne
{
public static class CustomConfigurationTest
{
[FunctionName("CustomConfigurationTestFunctionName")]
public static async Task<HttpResponseMessage> Run([HttpTrigger(AuthorizationLevel.Function, "post", Route = null)]HttpRequestMessage req, TraceWriter log)
{
try
{
string rootDirectory = string.Empty;
if (!string.IsNullOrEmpty(Environment.GetEnvironmentVariable("HOME")))
{
/* running in azure */
rootDirectory = Environment.GetEnvironmentVariable("HOME") + "\\site\\wwwroot";
}
else
{
/* in visual studio, local debugging */
rootDirectory = ".";
}
string path = rootDirectory + @"\CustomConfigFiles\MyCustomConfigurationSettings.config";
log.Info(string.Format("CustomConfigurationTestFunctionName HostingEnvironment.ApplicationPhysicalPath='{0}'", System.Web.Hosting.HostingEnvironment.ApplicationPhysicalPath));
if (!System.IO.File.Exists(path))
{
throw new System.IO.FileNotFoundException(string.Format("NOT FOUND!!! ('{0}')", path));
}
else
{
log.Info(string.Format("File exists='{0}'", path));
}
ExeConfigurationFileMap map = new ExeConfigurationFileMap { ExeConfigFilename = path };
Configuration config = ConfigurationManager.OpenMappedExeConfiguration(map, ConfigurationUserLevel.None);
MyCustomConfigurationSettingsConfigurationSection customSection = MyCustomConfigurationSettingsConfigurationRetriever.GetMyCustomConfigurationSettings(config);
string msg = string.Join(",", customSection.FavoriteNumber.ToString(), customSection.FavoriteColor);
return req.CreateResponse(HttpStatusCode.OK, msg);
}
catch (Exception ex)
{
string errorMsg = ex.Message; // ExceptionHelper.GenerateFullFlatMessage(ex);
log.Error(errorMsg);
return req.CreateResponse(HttpStatusCode.BadRequest, errorMsg);
}
}
}
}
以上不起作用。
我收到一个错误
“为 MyCustomConfigurationSettingsConfigurationSectionName 创建配置节处理程序时出错:无法加载文件或程序集‘GranadaCoder.AzurePoc.ConfigurationLibrary’或其依赖项之一。系统找不到指定的文件。(C:\blah\blah\blah\bin \Debug\net461\CustomConfigFiles\MyCustomConfigurationSettings.config 第 4 行)"
文件在那里(见图)
知道为什么自定义配置不起作用吗?