MySQL数据库操作类

using System;
using System.Configuration;
using MySql.Data.MySqlClient;
/// <summary>
/// TestDatebase 的摘要说明
/// </summary>
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();
    }
    /// <summary>
    /// 建立mysql数据库链接
    /// </summary>
    /// <returns></returns>
    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;
    }
    /// <summary>
    /// 建立执行命令语句对象
    /// </summary>
    /// <param name="sql"></param>
    /// <param name="mysql"></param>
    /// <returns></returns>
    public static MySqlCommand getSqlCommand ( String sql,MySqlConnection mysql )
    {
        MySqlCommand mySqlCommand = new MySqlCommand ( sql, mysql );
        //  MySqlCommand mySqlCommand = new MySqlCommand(sql);
        // mySqlCommand.Connection = mysql;
        return mySqlCommand;
    }
    /// <summary>
    /// 查询并获得结果集并遍历
    /// </summary>
    /// <param name="mySqlCommand"></param>
    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();
        }
    }
    /// <summary>
    /// 添加数据
    /// </summary>
    /// <param name="mySqlCommand"></param>
    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 );
        }
 
    }
    /// <summary>
    /// 修改数据
    /// </summary>
    /// <param name="mySqlCommand"></param>
    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 );
        }
    }
    /// <summary>
    /// 删除数据
    /// </summary>
    /// <param name="mySqlCommand"></param>
    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 );
        }
    }
}
以上转自https://blog.csdn.net/wxr15732623310/article/details/53367498