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衔接MYSQL数据库的要领及示例
要领一:
运用MYSQL推出的MySQL Connector/Net is an ADO.NET driver for MySQL
该组件为MYSQL为ADO.NET造访MYSQL数据库打算的.NET造访组件。
安置完成该组件后,引用命名空间MySql.Data.MySqlClient;
运用饬令行编译时:csc /r:MySql.Data.dll test.cs
要领二:
经由ODBC造访MYSQL数据库
造访前要先下载两个组件:odbc.net和MYSQL的ODBC驱动(MySQL Connector/ODBC (MyODBC) driver)此刻为3.51版
安置完成后,即可经由ODBC造访MYSQL数据库
要领三:
运用CoreLab推出的MYSQL造访组件,面向.NET
安置完成后,引用命名空间:CoreLab.MySql;
运用饬令编译时:csc /r:CoreLab.MySql.dll test.cs
以下为造访MYSQL数据库实例
编译指令:csc /r:CoreLab.MySql.dll /r:MySql.Data.dll test.cs
using System;
using System.Net;
using System.Text;
using CoreLab.MySql;
using System.Data.Odbc;
using MySql.Data.MySqlClient;
>{
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();
}
}
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