Unity 操作 Mysql 模板程式碼
阿新 • • 發佈:2020-10-20
using System; using MySql.Data; using MySql.Data.MySqlClient; using UnityEngine; public class DBMgr { private static DBMgr instance = null; public static DBMgr Instance { get { if (instance == null) { instance = new DBMgr(); } return instance; } } private MySqlConnection conn; public void Init() { conn = new MySqlConnection("server=127.0.0.1;User Id = root;password=;Database=wordgame;Charset = utf8"); conn.Open(); QueryPlayerData("123", "123"); } public void QueryPlayerData(string act, string pwd) { bool isNew = true; try { MySqlDataReader reader = null; MySqlCommand cmd = new MySqlCommand("select * from tb_account where act = @act", conn); cmd.Parameters.AddWithValue("act", act); reader = cmd.ExecuteReader(); if (reader.Read()) { isNew = false; string _pwd = reader.GetString("pwd"); if (_pwd.Equals(pwd)) { Debug.Log($"登入成功!"); } } } catch (Exception e) { conn.Close(); } } private int InsertNewAcctData(string act, string pwd) { int id = -1; try { MySqlCommand cmd = new MySqlCommand(@"insert into tb_account set act=@act", conn); cmd.Parameters.AddWithValue("act", act); cmd.ExecuteNonQuery(); id = (int) cmd.LastInsertedId; } catch (Exception e) { conn.Close(); } return id; } public bool UpdatePlayerData(int id) { try { MySqlCommand cmd = new MySqlCommand(@"update tb_account set name=@name where id =@id", conn); cmd.Parameters.AddWithValue("id", id); cmd.Parameters.AddWithValue("name", "name"); cmd.ExecuteNonQuery(); } catch (Exception e) { conn.Close(); return false; } return true; } }