連接MySQL數據庫的方法及示例 方法一： 使用MYSQL推出的MySQL Connector/Net is an ADO.NET driver for MySQL 該組件為MYSQL為ADO.NET訪問MYSQL數據庫設計的.NET訪問組件。 安裝完成該組件后，引用命名空間MySql.Data.MySqlClient; 使用命令行編譯時：csc /r:MySql.Data.dll test.cs 方法二： 通過ODBC訪問MYSQL數據庫 訪問前要先下載兩個組件：odbc.net和MYSQL的ODBC驅動(MySQL Connector/ODBC (MyODBC) driver)目前為3.51版 安裝完成后，即可通過ODBC訪問MYSQL數據庫 方法三： 使用CoreLab推出的MYSQL訪問組件，面向.NET 安裝完成后，引用命名空間：CoreLab.MySql; 使用命令編譯時：csc /r:CoreLab.MySql.dll test.cs以下為訪問MYSQL數據庫實例編譯指令：csc /r:CoreLab.MySql.dll /r:MySql.Data.dll test.csusing System; using System.Net; using System.Text; using CoreLab.MySql; using System.Data.Odbc; using MySql.Data.MySqlClient;class ConnectMySql {
public void Connect_CoreLab() { string constr = "User Id=root;Host=localhost;Database=qing;passWord=qing"; MySqlConnection mycn = new MySqlConnection(constr); mycn.Open(); MySqlCommand mycm = new MySqlCommand("select * from shop",mycn); MySqlDataReader msdr = mycm.ExecuteReader(); while(msdr.Read()) { if (msdr.HasRows) { Console.WriteLine(msdr.GetString(0)); } } msdr.Close(); mycn.Close(); }
public void Connect_Odbc() { //string MyConString ="DSN=MySQL;UID=root;PWD=qing"; string MyConString = "DRIVER={MySQL ODBC 3.51 Driver};" + "SERVER=localhost;" + "DATABASE=test;" + "UID=root;" + "PASSWORD=qing;" + "OPTION=3"; OdbcConnection MyConn = new OdbcConnection(MyConString); MyConn.Open(); OdbcCommand mycm = new OdbcCommand("select * from hello",MyConn); OdbcDataReader msdr = mycm.ExecuteReader(); while(msdr.Read()) { if (msdr.HasRows) { Console.WriteLine(msdr.GetString(0)); } } msdr.Close(); MyConn.Close(); } public void Connect_Net() { string myConnectionString = "Database=test;Data Source=localhost;User Id=root;Password=qing"; MySqlConnection mycn = new MySqlConnection(myConnectionString); mycn.Open(); MySqlCommand mycm = new MySqlCommand("select * from hello",mycn); MySqlDataReader msdr = mycm.ExecuteReader(); while(msdr.Read()) { if (msdr.HasRows) { Console.WriteLine(msdr.GetString(0)); } } msdr.Close(); mycn.Close(); } public static void Main() { ConnectMySql ms = new ConnectMySql(); ms.Connect_CoreLab(); ms.Connect_Odbc(); Connect_Net(); } }
