C#连接MySQL数据库的三种常见方法及代码示例

连接MYSQL数据库的方法及示例

public void Connect_CoreLab()

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();

}

}