{"id":165591,"date":"2024-11-05T12:45:23","date_gmt":"2024-11-05T04:45:23","guid":{"rendered":"https:\/\/server.hk\/cnblog\/165591\/"},"modified":"2024-11-05T12:45:24","modified_gmt":"2024-11-05T04:45:24","slug":"%e8%b7%a8%e6%95%b8%e6%93%9a%e5%ba%ab%e6%93%8d%e4%bd%9c%ef%bc%9a-net%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%a1%88-net-%e8%b7%a8%e6%95%b8%e6%93%9a%e5%ba%ab%e6%93%8d%e4%bd%9c","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/165591\/","title":{"rendered":"\u8de8\u6578\u64da\u5eab\u64cd\u4f5c\uff1a.net\u89e3\u6c7a\u65b9\u6848 (.net \u8de8\u6578\u64da\u5eab\u64cd\u4f5c)"},"content":{"rendered":"<h1 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id=\"%e4%bd%bf%e7%94%a8ado-net%e9%80%b2%e8%a1%8c%e8%b7%a8%e6%95%b8%e6%93%9a%e5%ba%ab%e6%93%8d%e4%bd%9c-dpAXVoHmku\">\u4f7f\u7528ADO.NET\u9032\u884c\u8de8\u6578\u64da\u5eab\u64cd\u4f5c<\/h3>\n<p>ADO.NET\u662f.NET\u6846\u67b6\u4e2d\u7528\u65bc\u6578\u64da\u8a2a\u554f\u7684\u6838\u5fc3\u7d44\u4ef6\u3002\u5b83\u63d0\u4f9b\u4e86\u4e00\u7d44\u985e\u548c\u63a5\u53e3\uff0c\u5141\u8a31\u958b\u767c\u4eba\u54e1\u8207\u4e0d\u540c\u7684\u6578\u64da\u5eab\u9032\u884c\u4ea4\u4e92\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528ADO.NET\u5f9eSQL Server\u8b80\u53d6\u6578\u64da\u4e26\u5c07\u5176\u63d2\u5165\u5230MySQL\u6578\u64da\u5eab\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>using System;\nusing System.Data.SqlClient;\nusing MySql.Data.MySqlClient;\n\nclass Program\n{\n    static void Main()\n    {\n        \/\/ SQL Server \u9023\u63a5\u5b57\u7b26\u4e32\n        string sqlServerConnectionString = \"Server=sqlserver;Database=mydb;User Id=myuser;Password=mypassword;\";\n        \/\/ MySQL \u9023\u63a5\u5b57\u7b26\u4e32\n        string mySqlConnectionString = \"Server=mysqlserver;Database=mydb;User Id=myuser;Password=mypassword;\";\n\n        using (SqlConnection sqlConnection = new SqlConnection(sqlServerConnectionString))\n        {\n            sqlConnection.Open();\n            SqlCommand sqlCommand = new SqlCommand(\"SELECT * FROM Users\", sqlConnection);\n            SqlDataReader reader = sqlCommand.ExecuteReader();\n\n            using (MySqlConnection mySqlConnection = new MySqlConnection(mySqlConnectionString))\n            {\n                mySqlConnection.Open();\n\n                while (reader.Read())\n                {\n                    string name = reader[\"Name\"].ToString();\n                    string email = reader[\"Email\"].ToString();\n\n                    MySqlCommand mySqlCommand = new MySqlCommand(\"INSERT INTO Users (Name, Email) VALUES (@Name, @Email)\", mySqlConnection);\n                    mySqlCommand.Parameters.AddWithValue(\"@Name\", name);\n                    mySqlCommand.Parameters.AddWithValue(\"@Email\", email);\n                    mySqlCommand.ExecuteNonQuery();\n                }\n            }\n        }\n    }\n}\n<\/code><\/pre>\n<h3 id=\"%e4%bd%bf%e7%94%a8entity-framework%e9%80%b2%e8%a1%8c%e8%b7%a8%e6%95%b8%e6%93%9a%e5%ba%ab%e6%93%8d%e4%bd%9c-dpAXVoHmku\">\u4f7f\u7528Entity Framework\u9032\u884c\u8de8\u6578\u64da\u5eab\u64cd\u4f5c<\/h3>\n<p>Entity Framework\uff08EF\uff09\u662f\u4e00\u500b\u5f37\u5927\u7684ORM\uff08\u5c0d\u8c61\u95dc\u4fc2\u6620\u5c04\uff09\u6846\u67b6\uff0c\u80fd\u5920\u7c21\u5316\u6578\u64da\u5eab\u64cd\u4f5c\u3002\u96d6\u7136EF\u4e3b\u8981\u7528\u65bc\u55ae\u4e00\u6578\u64da\u5eab\u7684\u64cd\u4f5c\uff0c\u4f46\u4e5f\u53ef\u4ee5\u901a\u904e\u914d\u7f6e\u591a\u500b\u4e0a\u4e0b\u6587\u4f86\u5be6\u73fe\u8de8\u6578\u64da\u5eab\u64cd\u4f5c\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>public class SqlServerContext : DbContext\n{\n    public SqlServerContext() : base(\"SqlServerConnectionString\") { }\n    public DbSet Users { get; set; }\n}\n\npublic class MySqlContext : DbContext\n{\n    public MySqlContext() : base(\"MySqlConnectionString\") { }\n    public DbSet Users { get; set; }\n}\n\npublic void TransferUsers()\n{\n    using (var sqlContext = new SqlServerContext())\n    using (var mySqlContext = new MySqlContext())\n    {\n        var users = sqlContext.Users.ToList();\n        mySqlContext.Users.AddRange(users);\n        mySqlContext.SaveChanges();\n    }\n}\n<\/code><\/pre>\n<h2 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