C# 使用mysql.data.dll，读写mysql数据库

1、下载 myql.data.all 下载地址如下

http://www.ddooo.com/softdown/43455.htm

2、 把myql.data.all放到工程debug文件夹下，引入到C#工程中，右键工程->添加->引用，选择myql.data.all，最后确认即可

3、相关代码如下：

using System;

using System.Configuration;

using MySql.Data.MySqlClient;

///

/// TestDatebase 的摘要说明

///

public class TestDatebase

{

public TestDatebase()

{

//

// TODO: 在此处添加构造函数逻辑

//

}

public static void Main ( String[] args )

{

MySqlConnection mysql = getMySqlCon();

//查询sql

String sqlSearch = "select * from student";

//插入sql

String sqlInsert = "insert into student values (12,'张三',25,'大专')";

//修改sql

String sqlUpdate = "update student set name='李四' where id= 3";

//删除sql

String sqlDel = "delete from student where id = 12";

//打印SQL语句

Console.WriteLine ( sqlDel );

//四种语句对象

//MySqlCommand mySqlCommand = getSqlCommand(sqlSearch, mysql);

//MySqlCommand mySqlCommand = getSqlCommand(sqlInsert, mysql);

//MySqlCommand mySqlCommand = getSqlCommand(sqlUpdate, mysql);

MySqlCommand mySqlCommand = getSqlCommand ( sqlDel, mysql );

mysql.Open();

//getResultset(mySqlCommand);

//getInsert(mySqlCommand);

//getUpdate(mySqlCommand);

getDel ( mySqlCommand );

//记得关闭

mysql.Close();

String readLine = Console.ReadLine();

}

///

/// 建立mysql数据库链接

///

///

public static MySqlConnection getMySqlCon()

{

String mysqlStr = "Database=test;Data Source=127.0.0.1;User Id=root;Password=root;pooling=false;CharSet=utf8;port=3306";

// String mySqlCon = ConfigurationManager.ConnectionStrings["MySqlCon"].ConnectionString;

MySqlConnection mysql = new MySqlConnection ( mysqlStr );

return mysql;

}

///

/// 建立执行命令语句对象

///

///

///

///

public static MySqlCommand getSqlCommand ( String sql,MySqlConnection mysql )

{

MySqlCommand mySqlCommand = new MySqlCommand ( sql, mysql );

//  MySqlCommand mySqlCommand = new MySqlCommand(sql);

// mySqlCommand.Connection = mysql;

return mySqlCommand;

}

///

/// 查询并获得结果集并遍历

///

///

public static void getResultset ( MySqlCommand mySqlCommand )

{

MySqlDataReader reader = mySqlCommand.ExecuteReader();

try

{

while ( reader.Read() )

{

if ( reader.HasRows )

{

Console.WriteLine ( "编号:" + reader.GetInt32 ( 0 ) + "|姓名:" + reader.GetString ( 1 ) + "|年龄:" + reader.GetInt32 ( 2 ) + "|学历:" + reader.GetString ( 3 ) );

}

}

}

catch ( Exception )

{

Console.WriteLine ( "查询失败了！" );

}

finally

{

reader.Close();

}

}

///

/// 添加数据

///

///

public static void getInsert ( MySqlCommand mySqlCommand )

{

try

{

mySqlCommand.ExecuteNonQuery();

}

catch ( Exception ex )

{

String message = ex.Message;

Console.WriteLine ( "插入数据失败了！" + message );

}

}

///

/// 修改数据

///

///

public static void getUpdate ( MySqlCommand mySqlCommand )

{

try

{

mySqlCommand.ExecuteNonQuery();

}

catch ( Exception ex )

{

String message = ex.Message;

Console.WriteLine ( "修改数据失败了！" + message );

}

}

///

/// 删除数据

///

///

public static void getDel ( MySqlCommand mySqlCommand )

{

try

{

mySqlCommand.ExecuteNonQuery();

}

catch ( Exception ex )

{

String message = ex.Message;

Console.WriteLine ( "删除数据失败了！" + message );

}

}

}