如何使用C#连接远程数据库mysql

如何使用C#连接远程数据库mysql

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问题描述

我有两台笔记本电脑运行Windows:

A与IP:192.168.109.100和B:192.168.109.101

我尝试连接B中的数据库mysql存储从A使用C#。

我已经添加到文件my.ini行bind-address = 192.168.109.101之后[mysql]

这是我的代码:



I have two laptop run Windows:
A with IP:192.168.109.100 and B:192.168.109.101
I try to connect database mysql store in B from A using C#.
I have added to file my.ini line "bind-address = 192.168.109.101" after [mysql]
Here is my code:

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using MySql.Data.MySqlClient;

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void btn_connect_Click(object sender, EventArgs e)
        {
            try
            {
                string constring = "Server=192.168.109.101;Database=luan_van;Port=3306;User ID=root;Password=";
                MySqlConnection conDataBase = new MySqlConnection(constring);
                MySqlDataAdapter myData = new MySqlDataAdapter();
                myData.SelectCommand = new MySqlCommand("select * from tt_nhanvien;", conDataBase);
                MySqlCommandBuilder cb = new MySqlCommandBuilder(myData);
                conDataBase.Open();
                MessageBox.Show("Connect");
                conDataBase.Close();
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
        }
    }
}



错误用户'root验证主机'192.168.109.101' '使用方法'mysql_native_password'失败并显示消息:用户'root @ Administrator'拒绝访问(使用密码:否)

如何解决?


It's error "Authentication to host '192.168.109.101' for user 'root' using method 'mysql_native_password' failed with message: Access denied for user 'root@Administrator' (using password:NO)"
How can i fix it?

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08-11 00:09