Unity3D 连接MySql

MySql安装如下：

https://www.cnblogs.com/dlvguo/p/9671832.html

Unity连接MySql首先要在Unity的安装目录D:\Unity2017\Editor\Data\Mono\lib\mono\2.0引用4个dll文件：

I18N.CJK.dll、I18N.dll、I18N.West.dll、System.data.dll

同时去Mysql官网下载Mysql.data.dll 注意下载的dll要跟unity .net版本一直 一般用3.5。

发布的时候在PlayerSetting要设置Api Compatibility Level为.net 2.0不能使用简版的.net 2.0 Subset否则导致发布失败。

在Unity目录下添加Plugins文件夹，将dll放进去 unity将会自动引用。

这边做一个查询连接表的Test，写SqlHelper：

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 using MySql.Data;
 using MySql.Data.MySqlClient;
 using System;
 public class SqlHelper {
     private static SqlHelper _instance = new SqlHelper();
     private static string connStr="Database=Lwcc;Data Source = 172.22.224.87; User Id = root; Password=123456;port=3306";
     private string ip;
     private string acc;
     private string psd;
     private string db;
     public static SqlHelper Insatance { get
         {
             return _instance;
         } }
     /// <summary>
     /// 获取连接
     /// </summary>
     /// <returns></returns>
     private MySqlConnection GetSqlConn()
     {
         MySqlConnection sqlConn = null;
         sqlConn = new MySqlConnection(connStr);
         return sqlConn;
     }
     /// <summary>
     /// 获取所有表名
     /// </summary>
     /// <returns></returns>
     public IEnumerable<string> GetTables()
     {
         string sql = string.Format(@"select table_name from information_schema.tables where table_schema='{0}' and table_type='base table'", db);
         //string sql = @"select table_name from information_schema.tables where table_schema='lwcc' and table_type='base table'";
         List<string> strs = new List<string>();
         var conn = GetSqlConn();
         conn.Open();
         MySqlCommand cmd = new MySqlCommand(sql, conn);
         MySqlDataReader reader = cmd.ExecuteReader();
         while (reader.Read())
         {
             strs.Add(reader[].ToString());
         }
         conn.Close();
         return strs;
     }
     /// <summary>
     /// 设置连接Str
     /// </summary>
     /// <param name="ip"></param>
     /// <param name="acc"></param>
     /// <param name="psd"></param>
     /// <param name="db"></param>
     public void SetConnStr(string ip,string acc,string psd,string db)
     {
         this.ip = ip;
         this.acc = acc;
         this.psd = psd;
         this.db = db;
         connStr = string.Format("DataBase={0};Data Source= {1};User Id = {2};Password={3};port=3306;", db, ip, acc, psd);
     }
     public void ClearTables(IEnumerable<string> tbs)
     {
         string cmdText = "";
         foreach(var item in tbs)
         {
             cmdText += string.Format("truncate table {0};", item);
         }
         var conn = GetSqlConn();
         conn.Open();
         MySqlCommand cmd = new MySqlCommand(cmdText,conn);
         cmd.ExecuteNonQuery();
         conn.Close();
     }
 }

附上源码，这是我用Unity制作的一个Mysql删表小工具，能够查询所有表，并清空。

https://github.com/dlvguo/SimpleMysqlTool