我不太喜欢这里所有的答案。这就是我的发现。

使用。net Core

你可以直接使用内置的DbConnectionStringBuilder:

var builder = new System.Data.Common.DbConnectionStringBuilder();
builder.ConnectionString = "server=localhost;login=sa;pass=awesomeness";

var server = builder["server"];
var login = builder["login"];
var pass = builder["pass"];

是的，有system。data。common。dbconnectionstringbuilder类。

DbConnectionStringBuilder类 类的基类 强类型的连接字符串 建筑商(SqlConnectionStringBuilder OleDbConnectionStringBuilder，等等 )获得。连接字符串 构建者让开发人员 以编程方式创建语法 正确连接字符串，并进行解析 并重建现有连接 字符串。

感兴趣的子类是:

System.Data.EntityClient.EntityConnectionStringBuilder
System.Data.Odbc.OdbcConnectionStringBuilder
System.Data.OleDb.OleDbConnectionStringBuilder
System.Data.OracleClient.OracleConnectionStringBuilder
System.Data.SqlClient.SqlConnectionStringBuilder

例如，要从SQL-server连接字符串中“窥视数据源”，你可以这样做:

var builder = new SqlConnectionStringBuilder(connectionString);
var dataSource = builder.DataSource;

你可以使用DbConnectionStringBuilder，你不需要任何特定的提供程序:

以下代码:

var cnstr = "Data Source=data source value;Server=ServerValue";
var builder = new DbConnectionStringBuilder();
builder.ConnectionString = cnstr;
Console.WriteLine("Data Source: {0}", builder["Data Source"]);
Console.WriteLine("Server: {0}", builder["Server"]);

输出到控制台:

Data Source: data source value
Server: ServerValue

编辑:

因为DbConnectionStringBuilder实现了dicictionary，你可以枚举连接字符串参数:

foreach (KeyValuePair<string, object> kv in builder)
{
    Console.WriteLine("{0}: {1}", kv.Key, kv.Value);
}

是的，你可以使用ConnectionStringBuilder类做到这一点。 下面是用于标准数据提供者的可用DbConnectionStringBuilder实现的列表:

System.Data.Odbc.OdbcConnectionStringBuilder
System.Data.OleDb.OleDbConnectionStringBuilder
System.Data.OracleClient.OracleConnectionStringBuilder
System.Data.SqlClient.SqlConnectionStringBuilder

下面是解析连接字符串并显示其元素的示例。

 string conString = @"Data Source=.\sqlexpress;" +
                        "Database=Northwind;Integrated Security=SSPI;" +
                        "Min Pool Size=5;Max Pool Size=15;Connection Reset=True;" +
                        "Connection Lifetime=600;";
    // Parse the SQL Server connection string and display it's properties

    SqlConnectionStringBuilder objSB1 = new SqlConnectionStringBuilder(conString);
    Response.Write("<b>Parsed SQL Connection String Parameters:</b>");
    Response.Write(" <br/>  Database Source = " + objSB1.DataSource);
    Response.Write(" <br/>  Database = " + objSB1.InitialCatalog);
    Response.Write(" <br/>  Use Integrated Security = " + objSB1.IntegratedSecurity);
    Response.Write(" <br/>  Min Pool Size = " + objSB1.MinPoolSize);
    Response.Write(" <br/>  Max Pool Size = " + objSB1.MaxPoolSize);
    Response.Write(" <br/>  Lifetime = " + objSB1.LoadBalanceTimeout);

使用SqlConnectionStringBuilder 不幸的是，由于连接字符串不同，您将不得不使用特定于DB的ConnectionStringBuilder。

你想要使用DbProviderFactory。CreateConnectionStringBuilder()，它为您提供特定于连接器的连接字符串构建器/解析器，但不要求您使用任何特定于连接器的类。