《C# 连接MYSQL数据库的3种方法及其示例》由会员分享,可在线阅读,更多相关《C# 连接MYSQL数据库的3种方法及其示例(24页珍藏版)》请在金锄头文库上搜索。
1、C# 连接MYSQL数据库的方法及示例连接MYSQL数据库的方法及示例 方法一:using MySql.Data using MySql.Data.MySqlClient; 其他操作跟SQL是差不多,无非就是前缀变成MySql了. 补充: 下面是连接字符串,供参考. MySqlConnection con = new MySql.Data.MySqlClient.MySqlConnection(Database=testdb;Data Source=localhost;User Id=db;Password=apple;charset=utf8); con.Open(); MySqlComma
2、nd cmd = new MySqlCommand(); cmd.Connection = con; 使用MYSQL推出的MySQL Connector/Net is an ADO.NET driver for MySQL 该组件为MYSQL为ADO.NET访问MYSQL数据库设计的.NET访问组件。 安装完成该组件后,引用命名空间MySql.Data.MySqlClient; 使用命令行编译时:csc /r:MySql.Data.dll test.cs 方法二: 通过ODBC访问MYSQL数据库 访问前要先下载两个组件:和MYSQL的ODBC驱动(MySQL Connector/ODBC (
3、MyODBC) driver)目前为3.51版 安装完成后,即可通过ODBC访问MYSQL数据库 方法三: 使用CoreLab推出的MYSQL访问组件,面向.NET 安装完成后,引用命名空间:CoreLab.MySql; 使用命令编译时:csc /r:CoreLab.MySql.dll test.cs 以下为访问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; usin
4、g 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);
5、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; + DAT
6、ABASE=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.GetStrin
7、g(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); MySql
8、DataReader 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(); 1、用MySQLDriverCS连接MySQL数据库先下载和安装MySQLDr
9、iverCS,地址:http:/ MySQLDriverCS-n-EasyQueryTools-4.0.1-DotNet2.0.exe using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Data.Odbc;using System.Drawing;using System.Linq;using System.Text;using System.Windows.Forms;using MySQLDriverCS; namespace my
10、sql public partial class Form1 : Form public Form1() InitializeComponent(); private void Form1_Load(object sender, EventArgs e) MySQLConnection conn = null; conn = new MySQLConnection(new MySQLConnectionString(localhost, inv, root, 831025).AsString); conn.Open(); MySQLCommand commn = new MySQLComman
11、d(set names gb2312, conn); commn.ExecuteNonQuery(); string sql = select * from exchange ; MySQLDataAdapter mda = new MySQLDataAdapter(sql, conn); DataSet ds = new DataSet(); mda.Fill(ds, table1); this.dataGrid1.DataSource = ds.Tablestable1; conn.Close(); 2、通过ODBC访问mysql数据库: 参考:http:/ 1. 安装Microsoft
12、ODBC.net:我安装的是mysql-connector-odbc-3.51.22-win32.msi2. 安装MDAC 2.7或者更高版本:我安装的是mdac_typ.exe 2.7简体中文版3. 安装MySQL的ODBC驱动程序:我安装的是 odbc_net.msi4. 管理工具 - 数据源ODBC 配置DSN5. 解决方案管理中添加引用 Microsoft.Data.Odbc.dll(1.0.3300)6. 代码中增加引用 using Microsoft.Data.Odbc; using System;using System.Collections.Generic;using System.ComponentModel;using System.Drawing;using System.Linq; /vs2005好像没有这个命名空间,在c#2008下测试自动生成的using System.Text;using System.Windows.Forms;using Microsoft.Data.Odbc; namespace mysql public partial class Form1 : Form public Form1() InitializeComponent(); private void Form1_Load(object sende