religion/Assets/MySQL/PlayerInfo.cs

using System.Collections;
using System.Collections.Generic;
using System.Threading;
using MySql.Data.MySqlClient;
using UnityEngine;



public class PlayerInfo : MonoBehaviour
{
    public DataScriptableObject dataScriptableObject; //服务器信息，赋值后请勿再动
    
    public string uName; //用户昵称
    public int uid; //玩家uid
    public int rate; //玩家进度
    public List<BoardInfo> BoardInfos; //公告板信息链表
    public List<DeadInfo> DeadInfos;//死亡信息链表
    
    private string LinkInfo;

    /// <summary>
    /// 将类里储存的信息上传到数据库
    /// </summary>
    public void UpdatePlayerInfo()
    {
        MySqlConnection con = new MySqlConnection(LinkInfo);
        try
        {
            con.Open();
            Debug.Log("连接成功");
        }
        catch (MySqlException e)
        {
            e.ToString();//解决Warming
            Debug.Log("连接失败");
        }
        MySqlCommand cmd = new MySqlCommand("UPDATE 用户表 SET 进度 = "+rate+", 最后登录 = CURRENT_TIME() WHERE uid = "+uid, con);
        MySqlDataReader reader = cmd.ExecuteReader();
        reader.Read();
    }
    
    /// <summary>
    /// 创建一条留言信息
    /// </summary>
    public void CreateBoard(int WorldId, Vector2 postion,string text)
    {
        MySqlConnection con = new MySqlConnection(LinkInfo);
        try
        {
            con.Open();
            Debug.Log("连接成功");
        }
        catch (MySqlException e)
        {
            e.ToString();//解决Warming
            Debug.Log("连接失败");
        }
        MySqlCommand cmd = new MySqlCommand("INSERT INTO `religion`.`留言表` (`wid`, `uid`, `世界编号`, `坐标x`, `坐标y`, `正文`) VALUES (NULL, "+uid+", "+WorldId+", "+postion.x+", "+postion.y+", '"+text+"')", con);
        MySqlDataReader reader = cmd.ExecuteReader();
        reader.Read();
    }

    /// <summary>
    /// 创建一条死亡信息
    /// </summary>
    public void CreateDead(int WorldId, Vector2 postion)
    {
        MySqlConnection con = new MySqlConnection(LinkInfo);
        try
        {
            con.Open();
            Debug.Log("连接成功");
        }
        catch (MySqlException e)
        {
            e.ToString();//解决Warming
            Debug.Log("连接失败");
        }
        MySqlCommand cmd = new MySqlCommand("INSERT INTO 死亡表 (`did`, `uid`, `世界编号`, `坐标x`, `坐标y`) VALUES (NULL, "+uid+", "+WorldId+", "+postion.x+", "+postion.y+")", con);
        MySqlDataReader reader = cmd.ExecuteReader();
        reader.Read();
    }
    
    /// <summary>
    /// 获取指定世界的死亡信息链表。
    /// </summary>
    public List<DeadInfo> GetDeadInfo(int WorldId)
    {
        MySqlConnection con = new MySqlConnection(LinkInfo);
        try
        {
            con.Open();
            Debug.Log("连接成功");
        }
        catch (MySqlException e)
        {
            e.ToString();//解决Warming
            Debug.Log("连接失败");
        }
        MySqlCommand cmd = new MySqlCommand("SELECT * FROM 死亡表 NATURAL JOIN 用户表 WHERE 世界编号 = "+WorldId, con);
        MySqlDataReader reader = cmd.ExecuteReader();
        DeadInfos.Clear();
        while (reader.Read())
        {
            DeadInfo deadInfos = new DeadInfo();
            
            deadInfos.uid = reader.GetInt32("uid");
            deadInfos.id = reader.GetInt32("did");
            deadInfos.postion = new Vector2(reader.GetFloat("坐标x"),reader.GetFloat("坐标y"));
            DeadInfos.Add(deadInfos);
        }

        return DeadInfos;
    }
    
    /// <summary>
    /// 获取指定世界的留言板链表。
    /// </summary>
    public List<BoardInfo> GetBoardInfo(int WorldId)
    {
        MySqlConnection con = new MySqlConnection(LinkInfo);
        try
        {
            con.Open();
            Debug.Log("连接成功");
        }
        catch (MySqlException e)
        {
            e.ToString();//解决Warming
            Debug.Log("连接失败");
        }
        MySqlCommand cmd = new MySqlCommand("SELECT * FROM 留言表 NATURAL JOIN 用户表 WHERE 世界编号 = "+WorldId, con);
        MySqlDataReader reader = cmd.ExecuteReader();
        BoardInfos.Clear();
        while (reader.Read())
        {
            BoardInfo boardInfos = new BoardInfo();
            boardInfos.text = reader.GetString("正文");
            boardInfos.uid = reader.GetInt32("uid");
            boardInfos.id = reader.GetInt32("wid");
            boardInfos.postion = new Vector2(reader.GetFloat("坐标x"),reader.GetFloat("坐标y"));
            BoardInfos.Add(boardInfos);
        }

        return BoardInfos;
    }
    
    /// <summary>
    /// 判断是否存在这个用户
    /// </summary>
    public bool hasName(string _searchName)
    {
        MySqlConnection con = new MySqlConnection(LinkInfo);
        try
        {
            con.Open();
            Debug.Log("连接成功");
        }
        catch (MySqlException e)
        {
            e.ToString();//解决Warming
            Debug.Log("连接失败");
        }
        MySqlCommand cmd = new MySqlCommand("SELECT * FROM 用户表 WHERE 昵称='"+_searchName+"'", con);
        MySqlDataReader reader = cmd.ExecuteReader();
        return reader.HasRows;
        
    }
    
    /// <summary>
    /// 在用户表内创建一个用户
    /// </summary>
    public void CreateUser(string username)
    {
        MySqlConnection con = new MySqlConnection(LinkInfo);
        try
        {
            con.Open();
            Debug.Log("连接成功");
        }
        catch (MySqlException e)
        {
            e.ToString();//解决Warming
            Debug.Log("连接失败");
        }
        
        MySqlCommand cmd = new MySqlCommand("INSERT INTO 用户表 (`uid`, `昵称`, `血量`, `进度`, `注册时间`, `最后登录`) VALUES (NULL, '"+username+"', 0, 0, CURRENT_TIMESTAMP, CURRENT_TIMESTAMP)", con);
        MySqlDataReader reader = cmd.ExecuteReader();
        reader.Read();
    }
    
    /// <summary>
    /// 使用多线程获取用户信息，使用前请先设置公关变量name
    /// </summary>
    public void GetSqlData()
    {
        Thread thread = new Thread(ThreadGetSqlData);
        thread.Start();
    }
    
    private void ThreadGetSqlData()
    {
        MySqlConnection con = new MySqlConnection(LinkInfo);
        try
        {
            con.Open();
            Debug.Log("连接成功");
        }
        catch (MySqlException e)
        {
            e.ToString();//解决Warming
            Debug.Log("连接失败");
        }

        
        MySqlCommand cmd = new MySqlCommand("SELECT * FROM 用户表 WHERE 昵称='"+uName+"'", con);
        MySqlDataReader reader = cmd.ExecuteReader();
        reader.Read();
        
        uid = reader.GetInt32("uid");
        rate = reader.GetInt32("进度");
    }

    private void ThreadUpdatePlayerInfo()
    {
        
    }
    void Start()
    {
        //
        if(FindObjectsOfType<PlayerInfo>().Length > 1)
            Destroy(gameObject);
        DontDestroyOnLoad(gameObject);
        BoardInfos = new List<BoardInfo>();
        //
        LinkInfo = "server="+dataScriptableObject.IP+";" +
                   "port="+dataScriptableObject.Port+";" +
                   "database="+dataScriptableObject.Database+";" +
                   "user="+dataScriptableObject.User+";" +
                   "password="+dataScriptableObject.Password+";" +
                   "charset="+dataScriptableObject.Charset;
        
    }
    
}