c# - MySQL .NET Connector 连接失败

Question

我无法连接到 MySQL，它在线连接失败。打开()，我的代码有问题吗？

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

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

        private void Form1_Load(object sender, EventArgs e)
        {

            string MyConString = "SERVER=localhost:3316;" +
                "DATABASE=mydb;" +
                "UID=user;" +
                "PASSWORD=password;";
            MySqlConnection connection = new MySqlConnection(MyConString);
            connection.Open();
            // ...
            connection.Close();

        }
    }
}

Answer 1

这是我用来通过 MySql.Data.dll 版本 6.1.2.0 连接的字符串格式

server={0};user id={1};password={2};database={3};port={4}

所以你的连接字符串应该是

server=localhost;user id=user;password=密码;database=mydb;port=3316