c# - 如何在连接字符串中使用 ip 地址和用户名？

Question

我编写了这个方法，但如果“uid”中有 ' 符号，它会抛出 System.ArgumentException。

        public void Init(string constr)
            {
                var server = "a222068_6.mysql.mchost.ru";
                var database = "'a222068_6'";
                var uid = "'a222068_6'@'10.0.2.13'";
                var pass = "pass";

                constr = "SERVER=" + server + ";DATABASE=" + database + ";UID=" + uid + ";PASSWORD=" + pass + ";SSL Mode=None;";
                cnt = new MySqlConnection(constr); // Exception is thrown here
            }

尝试在没有 ' 的情况下进行连接时出现异常消息

Authentication to host 'a222068_6.mysql.mchost.ru' for user 'a222068_6@10.0.2.13' using method 'mysql_native_password' failed with message: Access denied for user 'a222068_6@10.0.2.13'@'localhost' (using password: YES)

Answer 1

改变

var uid = "'a222068_6'@'10.0.2.13'";

到

var uid = @"a222068_6@10.0.2.13";