当我失去互联网时,c# MySQL连接失败
本文关键字:MySQL 连接 失败 失去 互联网 | 更新日期: 2023-09-27 18:03:36
我正在运行一个c#程序,它连接到自己网络上的本地MySQL服务器。这一切都很好,直到我失去互联网,然后c#将不连接到服务器,尽管被IP引用(见下面的代码)。
public bool IsConnect()
{
bool result = true;
if (Connection == null)
{
if (String.IsNullOrEmpty(databaseName))
result = false;
string connstring = string.Format("Server=192.168.0.254; database={0}; UID=show; password=", "");
try
{
connection = new MySqlConnection(connstring);
connection.Open();
result = true;
}
catch (MySql.Data.MySqlClient.MySqlException ex)
{
switch (ex.Number)
{
case 0:
// MessageBox.Show("Cannot connect to server. Contact administrator");
break;
case 1045:
// MessageBox.Show("Invalid username/password, please try again");
break;
}
}
}
return result;
}
您没有检查您的databaseName
public bool IsConnect()
{
bool result = true;
if (Connection == null)
{
if (String.IsNullOrEmpty(databaseName))
result = false;
string connstring = string.Format("Server=192.168.0.254; database={0}; UID=show; password=", "");
try
{
//Database name is not empty
if(result)
{
connection = new MySqlConnection(connstring);
connection.Open();
result = true;
}
}
catch (MySql.Data.MySqlClient.MySqlException ex)
{
switch (ex.Number)
{
case 0:
// MessageBox.Show("Cannot connect to server. Contact administrator");
break;
case 1045:
// MessageBox.Show("Invalid username/password, please try again");
break;
}
}
}
return result;
}
正想多发点信息,却突然找到了答案。
添加skip-name-resolve
To my.cnf停止MySQL试图通过DNS解析客户端,这导致了我的问题