Question

我正在尝试使用SQL创建一个插件，但是我遇到了一些我不知道如何处理它们的错误。 SQL数据库管理器+从主类添加播放器。

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其他代码：

  private void Events_OnPlayerConnected(UnturnedPlayer player)
        {
            FriendsGroupID_t id;
            id.m_FriendsGroupID = (short)player.SteamGroupID.m_SteamID;
            Database.addPlayer(player.CharacterName, player.SteamName, SteamFriends.GetFriendsGroupName(id), player.CSteamID.m_SteamID.ToString());
        }

这是我在调用函数using System; using I18N.West; using MySql.Data.MySqlClient; using Rocket.Core.Logging; using Steamworks; namespace SQLPlayer { internal class DatabaseController { private MySqlConnection createConnection() { MySqlConnection Connection = null; try { if (SQLPlayer.Instance.Configuration.Instance.DatabasePort == 0) { SQLPlayer.Instance.Configuration.Instance.DatabasePort = 3306; } Connection = new MySqlConnection(string.Format("SERVER={0};DATABASE={1};UID={2};PASSWORD={3};PORT={4};", new object[] { SQLPlayer.Instance.Configuration.Instance.DatabaseAddress, SQLPlayer.Instance.Configuration.Instance.DatabaseName, SQLPlayer.Instance.Configuration.Instance.DatabaseUsername, SQLPlayer.Instance.Configuration.Instance.DatabasePassword, SQLPlayer.Instance.Configuration.Instance.DatabasePort })); } catch (Exception) { } return Connection; } public DatabaseController() { new CP1250(); CheckSchema(); } internal void CheckSchema() { try { MySqlConnection mySqlConnection = createConnection(); MySqlCommand mySqlCommand = mySqlConnection.CreateCommand(); mySqlCommand.CommandText = "show tables like '" + SQLPlayer.Instance.Configuration.Instance.LogTableName + "'"; mySqlConnection.Open(); if (mySqlCommand.ExecuteScalar() == null) { mySqlCommand.CommandText = "CREATE TABLE `" + SQLPlayer.Instance.Configuration.Instance.LogTableName + "` ( `id` INT NOT NULL AUTO_INCREMENT , `player_display_name` TEXT NOT NULL , `player_steam_name` TEXT NOT NULL ,`player_steamgroup_name` TEXT NOT NULL , `player_steam_id` INT NOL NULL , `sent_on` TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP , PRIMARY KEY (`id`));"; mySqlCommand.ExecuteNonQuery(); } mySqlConnection.Close(); } catch (Exception ex) { Logger.LogException(ex); } } // Token: 0x06000006 RID: 6 RVA: 0x00002250 File Offset: 0x00000450 public void addPlayer(string charactername, string steamname , string steamgroupname , int steamid) { try { MySqlConnection mySqlConnection = createConnection(); MySqlCommand mySqlCommand = mySqlConnection.CreateCommand(); mySqlCommand.Parameters.AddWithValue("@steamname", steamname); mySqlCommand.Parameters.AddWithValue("@charactername", charactername); mySqlCommand.Parameters.AddWithValue("@steamgroupname", steamgroupname); mySqlCommand.Parameters.AddWithValue("@steamid", steamid); string commandText = "insert into `" + SQLPlayer.Instance.Configuration.Instance.LogTableName + "` (`player_display_name` , `player_steam_name`,`player_steamgroup_name`,`player_steam_id`) values(@charactername,@steamname , @steamgroupname ,@steamid);"; mySqlCommand.CommandText = commandText; mySqlConnection.Open(); mySqlCommand.ExecuteNonQuery(); mySqlConnection.Close(); } catch (Exception) { } } public void DeletePlayers() { try { MySqlConnection mySqlConnection = createConnection(); MySqlCommand mySqlCommand = mySqlConnection.CreateCommand(); DateTime dateTime = DateTime.Now.AddDays(-SQLPlayer.Instance.Configuration.Instance.DeleteAfterDays); mySqlCommand.Parameters.AddWithValue("@days", dateTime); string commandText = "DELETE FROM " + SQLPlayer.Instance.Configuration.Instance.LogTableName + " WHERE `last_login` > @date; "; mySqlCommand.CommandText = commandText; mySqlConnection.Open(); mySqlCommand.ExecuteNonQuery(); mySqlConnection.Close(); } catch (Exception) { } } } }时遇到的错误：

addPlayer

Answer 1

你的问题就在这一行：

id.m_FriendsGroupID = (short)player.SteamGroupID.m_SteamID;

m_SteamID值很可能是int，而且太大而无法容纳short类型的变量。这里最好的解决方案是确保id.m_FriendsGroupID的类型为int，并将广告素材移至short。

SQL＆gt;价值太大了

1 个答案: