上一篇
微软刚发布.NET 9.0正式版!本次更新带来三大革命性特性:
⚠️ 紧急安全通告
微软2025年8月补丁修复13个高危漏洞,
// .NET 9.0 智能连接池配置 var builder = WebApplication.CreateBuilder(args); builder.Services.AddSqlServerSmartPool(options => { options.ConnectionString = "Your_Connection_String"; options.MaxPoolSize = 100; // 自动扩缩容至100连接 options.IdleTimeout = TimeSpan.FromMinutes(5); options.EnableAutoTuning = true; // 🔥 自动优化 });
关键优化点:
EnableAutoTuning
后,系统自动监测数据库负载// 错误示范(易被注入) var cmd = new SqlCommand($"SELECT * FROM Users WHERE Name='{userName}'", conn); // 正确姿势(参数化查询) var cmd = new SqlCommand("SELECT * FROM Users WHERE Name=@Name", conn); cmd.Parameters.AddWithValue("@Name", userName);
2025新特性:
EF Core 9.0新增SecureQuery
方法,自动加密敏感参数:
var users = context.Users.SecureQuery(u => u.Name == name).ToList();
// .NET 9.0 最佳实践 public async Task<List<Order>> GetOrdersAsync() { await using var conn = new SqlConnection(connectionString); var orders = await conn.QueryAsync<Order>( "SELECT * FROM Orders WHERE Status=@Status", new { Status = "Pending" }); return orders.ToList(); }
性能对比:
ALTER DATABASE MyDB SET ENCRYPTION ON;
var config = new ColumnEncryptionSetting(true); using var conn = new SqlConnection(connStr, config);
ALTER TABLE Users ALTER COLUMN Email ADD MASKED WITH (FUNCTION = 'partial(5,"***",3)');
微软推荐使用Azure Defender for SQL:
var embeddings = context.Embeddings .Where(e => e.Vector.Distance(queryVector) < 0.5) .ToList();
context.BulkInsert(users, options => options.BatchSize = 1000);
[Cacheable(Duration = 3600)] public List<Product> GetTopProducts() => context.Products.Take(10).ToList();
2025年SQL Server新特性:
EXEC sp_auto_index_recommendations @database_name = 'MyDB';
SELECT * FROM sys.dm_db_query_stats WHERE execution_count > 1000;
立即升级到.NET 9.0和SQL Server 2025,体验下一代开发效率!💻✨
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