这是保存在 web.config 中的连接字符串:

<appSettings>
    <add key="conn" value="Driver={MySQL ODBC 5.1 Driver};server=127.0.0.1;uid=root;pwd=1234;database=gis_server;option=3"/>
    </appSettings>

这是连接数据库的代码:

protected bool CheckPasswordBySqlServer(string strEmail, string strPsw)
{
    if (strEmail.ToLower() == "admin")
    {
        return false;
    }
    string str = "select id,Rank,RankEnc,ParentUser,Company from tbl_User where userName=@UserName and password1=@password";
    private string strConn = ConfigurationManager.AppSettings["conn"].ToString();
    SqlConnection sqlConnection = new SqlConnection(strConn);
    bool flag = false;
    try
    {
        try
        {
            sqlConnection.Open();
            SqlCommand sqlCommand = new SqlCommand(str, sqlConnection);
            sqlCommand.Parameters.AddWithValue("UserName", strEmail);
            sqlCommand.Parameters.AddWithValue("Password", strPsw);
            SqlDataReader sqlDataReader = sqlCommand.ExecuteReader();
            if (!sqlDataReader.Read())
            {
                flag = false;
            }
            else
            {
                this.Session["UserName"] = strEmail;
                this.Session["Password"] = strPsw;
                this.Session["LoginType"] = "Group";
                this.Session["FullName"] = sqlDataReader["Company"].ToString();
                if (FormsAuthentication.HashPasswordForStoringInConfigFile(string.Concat(strEmail, (char)43, sqlDataReader["Rank"].ToString()).ToLower(), "MD5") != sqlDataReader["RankEnc"].ToString().Trim())
                {
                    flag = false;
                }
                this.Session["ClientID"] = sqlDataReader["id"].ToString();
                this.Session["MyLanguage"] = base.Request.Cookies["Language"].Value;
                this.Session["ParentUser"] = sqlDataReader["ParentUser"].ToString().Trim();
                this.Session["Rank"] = sqlDataReader["Rank"].ToString();
                this.Session["strConnection"] = this.strConn;
                flag = true;
            }
            sqlDataReader.Close();
        }
        catch (Exception exception)
        {
            this.SetlblInfoHtml(exception.Message);
        }
    }
    finally
    {
        sqlConnection.Close();
    }
    return flag;
}

但是连接MySQL失败，返回错误:

System.ArgumentException: Keyword not supported: 'driver'. at System.Data.Common.DbConnectionOptions.ParseInternal(Hashtable parsetable, String connectionString, Boolean buildChain, Hashtable synonyms, Boolean firstKey) at System.Data.Common.DbConnectionOptions..ctor(String connectionString, Hashtable synonyms, Boolean useOdbcRules) at System.Data.SqlClient.SqlConnectionString..ctor(String connectionString) at System.Data.SqlClient.SqlConnectionFactory.CreateConnectionOptions(String connectionString, DbConnectionOptions previous) at System.Data.ProviderBase.DbConnectionFactory.GetConnectionPoolGroup(String connectionString, DbConnectionPoolGroupOptions poolOptions, DbConnectionOptions& userConnectionOptions) at System.Data.SqlClient.SqlConnection.ConnectionString_Set(String value) at System.Data.SqlClient.SqlConnection.set_ConnectionString(String value) at System.Data.SqlClient.SqlConnection..ctor(String connectionString) at Source_LoginFrm.CheckPasswordBySqlServer(String strEmail, String strPsw) at Source_LoginFrm.btnLogin_Click(String strLang)

可以用SqlConnection连接MySQL数据库吗？

最佳答案

SqlConnection 用于 SQL Server。您需要 MySqlConnection - 这不是 .NET Framework 的一部分，因此您必须 download it并在您的项目中引用它。然后您可以创建一个 MySqlConnection 对象并在您的应用程序中连接到 MySQL:

MySqlConnection connection = new MySqlConnection(myConnString);

您还必须使用 MySqlCommand 对象而不是 SqlCommand 对象。

http://dev.mysql.com/doc/refman/5.0/es/connector-net-examples-mysqlconnection.html

关于c# - ASP.NET 使用 SqlConnection 连接 MySQL，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/18253120/