static void Main(string[] args)
{
var builder = new ConfigurationBuilder()
.SetBasePath(Directory.GetCurrentDirectory())
.AddJsonFile("appsettings.json")
.AddEnvironmentVariables();
var configuration = builder.Build();
JsonConfigurationProvider jsonConfig = configuration.Providers.FirstOrDefault() as JsonConfigurationProvider;
EnvironmentVariablesConfigurationProvider envConfig = configuration.Providers.LastOrDefault() as EnvironmentVariablesConfigurationProvider;
while (true)
{
string connStr = string.Empty;
if (envConfig.TryGet("TestConnection", out connStr))
{
TestConnection(connStr);
return;
}
int i = 1;
while (jsonConfig.TryGet("TestConnection" + i, out connStr))
{
i++;
LogToConsole("--------------------");
LogToConsole("Will test " + connStr);
TestConnection(connStr);
}
LogToConsole("--------------------");
LogToConsole("And now ENV variables");
i = 1;
while (envConfig.TryGet("TestConnection" + i, out connStr))
{
i++;
LogToConsole("--------------------");
LogToConsole("Will test " + connStr);
TestConnection(connStr);
}
Thread.Sleep(new TimeSpan(0, 1, 0));
}
//Console.WriteLine("We're done. Press any key to quit.");
//Console.ReadKey();
}
public void IConfigurationProvider_EnvironmentVariablesConfigurationProvider()
{
Environment.SetEnvironmentVariable("Name", "SinxHe");
var source = new EnvironmentVariablesConfigurationSource
{
Prefix = null
};
var provider = new EnvironmentVariablesConfigurationProvider();
provider.TryGet("Name", out var name);
Assert.Null(name);
provider.Load();
provider.TryGet("Name", out name);
Assert.Equal(name, "SinxHe");
}
public void LoadKeyValuePairsFromAzureEnvironment()
{
var dict = new Hashtable()
{
{ "APPSETTING_AppName", "TestAppName" },
{ "CUSTOMCONNSTR_db1", "CustomConnStr" },
{ "SQLCONNSTR_db2", "SQLConnStr" },
{ "MYSQLCONNSTR_db3", "MySQLConnStr" },
{ "SQLAZURECONNSTR_db4", "SQLAzureConnStr" },
{ "CommonEnv", "CommonEnvValue" },
};
var envConfigSrc = new EnvironmentVariablesConfigurationProvider();
envConfigSrc.Load(dict);
string value;
Assert.Equal("TestAppName", envConfigSrc.Get("APPSETTING_AppName"));
Assert.False(envConfigSrc.TryGet("AppName", out value));
Assert.Equal("CustomConnStr", envConfigSrc.Get("ConnectionStrings:db1"));
Assert.Equal("SQLConnStr", envConfigSrc.Get("ConnectionStrings:db2"));
Assert.Equal("System.Data.SqlClient", envConfigSrc.Get("ConnectionStrings:db2_ProviderName"));
Assert.Equal("MySQLConnStr", envConfigSrc.Get("ConnectionStrings:db3"));
Assert.Equal("MySql.Data.MySqlClient", envConfigSrc.Get("ConnectionStrings:db3_ProviderName"));
Assert.Equal("SQLAzureConnStr", envConfigSrc.Get("ConnectionStrings:db4"));
Assert.Equal("System.Data.SqlClient", envConfigSrc.Get("ConnectionStrings:db4_ProviderName"));
Assert.Equal("CommonEnvValue", envConfigSrc.Get("CommonEnv"));
}
public void LoadKeyValuePairsFromAzureEnvironment()
{
var dict = new Hashtable()
{
{"APPSETTING_AppName", "TestAppName"},
{"CUSTOMCONNSTR_db1", "CustomConnStr"},
{"SQLCONNSTR_db2", "SQLConnStr"},
{"MYSQLCONNSTR_db3", "MySQLConnStr"},
{"SQLAZURECONNSTR_db4", "SQLAzureConnStr"},
{"CommonEnv", "CommonEnvValue"},
};
var envConfigSrc = new EnvironmentVariablesConfigurationProvider();
envConfigSrc.Load(dict);
string value;
Assert.Equal("TestAppName", envConfigSrc.Get("APPSETTING_AppName"));
Assert.False(envConfigSrc.TryGet("AppName", out value));
Assert.Equal("CustomConnStr", envConfigSrc.Get("Data:db1:ConnectionString"));
Assert.Equal("SQLConnStr", envConfigSrc.Get("Data:db2:ConnectionString"));
Assert.Equal("System.Data.SqlClient", envConfigSrc.Get("Data:db2:ProviderName"));
Assert.Equal("MySQLConnStr", envConfigSrc.Get("Data:db3:ConnectionString"));
Assert.Equal("MySql.Data.MySqlClient", envConfigSrc.Get("Data:db3:ProviderName"));
Assert.Equal("SQLAzureConnStr", envConfigSrc.Get("Data:db4:ConnectionString"));
Assert.Equal("System.Data.SqlClient", envConfigSrc.Get("Data:db4:ProviderName"));
Assert.Equal("CommonEnvValue", envConfigSrc.Get("CommonEnv"));
}
static ConfigurationManager()
{
var provider = new EnvironmentVariablesConfigurationProvider();
provider.Load();
provider.TryGet("ASPNETCORE_ENVIRONMENT", out string environmentName);
var builder = new ConfigurationBuilder()
.SetBasePath(Directory.GetCurrentDirectory())
.AddJsonFile("appsettings.json", optional: true, reloadOnChange: true)
.AddJsonFile($"appsettings.{environmentName}.json", optional: true, reloadOnChange: true)
.AddEnvironmentVariables();
Configuration = builder.Build();
}
static ConfigurationManager()
{
var provider = new EnvironmentVariablesConfigurationProvider();
provider.Load();
provider.TryGet("ASPNETCORE_ENVIRONMENT", out string environmentName);
//使用reloadOnChange为true会造成有线程监听配置文件 可以考虑使用依赖注入配置文件或者改为false
//https://blog.csdn.net/hiliqi/article/details/80953502
var builder = new ConfigurationBuilder()
.SetBasePath(Directory.GetCurrentDirectory())
.AddJsonFile("appsettings.json", optional: true, reloadOnChange: false)
.AddJsonFile($"appsettings.{environmentName}.json", optional: true, reloadOnChange: false)
.AddJsonFile("host.json", optional: true, reloadOnChange: false)
.AddJsonFile($"host.{environmentName}.json", optional: true, reloadOnChange: false)
.AddEnvironmentVariables();
Configuration = builder.Build();
}
public void LoadKeyValuePairsFromAzureEnvironment()
{
var dict = new Hashtable()
{
{ "APPSETTING_AppName", "TestAppName" },
{ "CUSTOMCONNSTR_db1", "CustomConnStr" },
{ "SQLCONNSTR_db2", "SQLConnStr" },
{ "MYSQLCONNSTR_db3", "MySQLConnStr" },
{ "SQLAZURECONNSTR_db4", "SQLAzureConnStr" },
{ "CommonEnv", "CommonEnvValue" },
{ "APIHUBCONNSTR_apihub", "ApiHubConnStr" },
{ "DOCDBCONNSTR_cosmos", "CosmosDbConnStr" },
{ "EVENTHUBCONNSTR_eventhub", "EventHubConnStr" },
{ "NOTIFICATIONHUBCONNSTR_notificationhub", "NotificationHubConnStr" },
{ "POSTGRESQLCONNSTR_db5", "PostgresqlConnStr" },
{ "REDISCACHECONNSTR_cache", "RedisConnStr" },
{ "SERVICEBUSCONNSTR_servicebus", "ServiceBusConnStr" },
};
var envConfigSrc = new EnvironmentVariablesConfigurationProvider();
envConfigSrc.Load(dict);
string value;
Assert.Equal("TestAppName", envConfigSrc.Get("APPSETTING_AppName"));
Assert.False(envConfigSrc.TryGet("AppName", out value));
Assert.Equal("CustomConnStr", envConfigSrc.Get("ConnectionStrings:db1"));
Assert.Equal("SQLConnStr", envConfigSrc.Get("ConnectionStrings:db2"));
Assert.Equal("System.Data.SqlClient", envConfigSrc.Get("ConnectionStrings:db2_ProviderName"));
Assert.Equal("MySQLConnStr", envConfigSrc.Get("ConnectionStrings:db3"));
Assert.Equal("MySql.Data.MySqlClient", envConfigSrc.Get("ConnectionStrings:db3_ProviderName"));
Assert.Equal("SQLAzureConnStr", envConfigSrc.Get("ConnectionStrings:db4"));
Assert.Equal("System.Data.SqlClient", envConfigSrc.Get("ConnectionStrings:db4_ProviderName"));
Assert.Equal("CommonEnvValue", envConfigSrc.Get("CommonEnv"));
Assert.Equal("ApiHubConnStr", envConfigSrc.Get("ConnectionStrings:apihub"));
Assert.Equal("CosmosDbConnStr", envConfigSrc.Get("ConnectionStrings:cosmos"));
Assert.Equal("EventHubConnStr", envConfigSrc.Get("ConnectionStrings:eventhub"));
Assert.Equal("NotificationHubConnStr", envConfigSrc.Get("ConnectionStrings:notificationhub"));
Assert.Equal("PostgresqlConnStr", envConfigSrc.Get("ConnectionStrings:db5"));
Assert.Equal("RedisConnStr", envConfigSrc.Get("ConnectionStrings:cache"));
Assert.Equal("ServiceBusConnStr", envConfigSrc.Get("ConnectionStrings:servicebus"));
}