在unity3d中连接数据库

1.導入dll
  同先前的帖子 , 將MySql.data.dll Import至Assets底下 , 然後再到Unity\Editor\Data\Frameworks\Mono.framework 中
將System.Data.dll 也一起Import至Assets內 , 當然 , 如果想顯示中文的話 , 請參考中文視頻教學 , 建立一個GUISkin與字型

2.建立數據庫內容
  主要是因為代碼中的這段內容
     static string host = "192.168.1.100";
     static string id = "mysql";
     static string pwd = "123456";
     static string database = "test";
     private string strCommand = "Select * from unity3d_test ORDER BY id;";
其中host ,id , pwd 請自行設定 , 簡單的說就是連進你的MySQL啦~
然後建立一個名為test的Database , 在這個test下建立一張table , 取名為 unity3d_test ,
接下來就為這張unity3d_test建立3個欄位 : ID , Name , Sex (記得將ID設定為primary key 且默認值為1)
再來自行填入5筆資料(5筆資料的原因是腳本那邊是設定成5筆資料一個循環 , 使用者可以自行更改腳本試試)

3.建立GameObject
  建立完GameObject後將上面兩個腳本掛上去 , 如果有建立GUISkin , 記得指定GUISkin

4.執行
  執行後先按Test按鈕來連接數據庫 , 然後再按"Click Me"來顯示數據庫內的內容

代码如下：

/*
在unity3d中连接数据库 收藏

1.C#代码：
*/
using UnityEngine;
using System;
using System.Collections;
using System.Data;
using MySql.Data.MySqlClient;
public class CMySql : MonoBehaviour {
    // Global variables
    public static MySqlConnection dbConnection;//Just like MyConn.conn in StoryTools before
     static string host = "192.168.1.100";
     static string id = "mysql";//这里是你自己的数据库的用户名字，我一开始想用root，发现不行，后来添加了新的用户才可以
     static string pwd = "123456";
     static string database = "test";
     static string result = "";

private string strCommand = "Select * from unity3d_test ORDER BY id;";
public static DataSet MyObj;
     void OnGUI()
     {
         host = GUILayout.TextField( host, 200, GUILayout.Width(200));
         id = GUILayout.TextField( id, 200, GUILayout.Width(200));
         pwd = GUILayout.TextField( pwd, 200, GUILayout.Width(200));
         if(GUILayout.Button("Test"))
         {
    string connectionString = string.Format("Server = {0}; Database = {1}; User ID = {2}; Password = {3};",host,database,id,pwd);
    openSqlConnection(connectionString);

    MyObj = GetDataSet(strCommand);
         } 
         GUILayout.Label(result);
     }  
    // On quit
    public static void OnApplicationQuit() {
        closeSqlConnection();
    }

    // Connect to database
    private static void openSqlConnection(string connectionString) {
        dbConnection = new MySqlConnection(connectionString);
        dbConnection.Open();
        result = dbConnection.ServerVersion;
        //Debug.Log("Connected to database."+result);
    }

    // Disconnect from database
    private static void closeSqlConnection() {
        dbConnection.Close();
        dbConnection = null;
        //Debug.Log("Disconnected from database."+result);
    }

    // MySQL Query
    public static void doQuery(string sqlQuery) {
        IDbCommand dbCommand = dbConnection.CreateCommand();    
        dbCommand.CommandText = sqlQuery;
        IDataReader reader = dbCommand.ExecuteReader();
        reader.Close();
        reader = null;
        dbCommand.Dispose();
        dbCommand = null;
    }
    #region Get DataSet
    public  DataSet GetDataSet(string sqlString)
    {
        //string sql = UnicodeAndANSI.UnicodeAndANSI.UnicodeToUtf8(sqlString);


  DataSet ds = new DataSet();
        try
        {
            MySqlDataAdapter da = new MySqlDataAdapter(sqlString, dbConnection);
            da.Fill(ds);

        }
        catch (Exception ee)
        {

            throw new Exception("SQL:" + sqlString + "\n" + ee.Message.ToString());
        }
        return ds;

    }
    #endregion 
}

using UnityEngine;
using System;
using System.Collections;
using System.Data;
public class DataBaseTest : MonoBehaviour {
public GUISkin myGUISkin = new GUISkin();
string strID = "";
string strName = "";
string strSex = "";
int Index = 1;
// Use this for initialization
void Start () {
}
void OnGUI()
{
  GUI.skin = myGUISkin;
  if (GUI.Button(new Rect(100,320,100,100),"Click Me"))
  {
   foreach(DataRow dr in CMySql.MyObj.Tables[0].Rows)
   {
    if (Index.ToString() == dr["ID"].ToString())
    {
     strID = dr["ID"].ToString();
     strName =  dr["Name"].ToString();
     strSex = dr["Sex"].ToString();

     break;
    }
   }   
   Index++;
    if(Index > 5)
   {
    Index = 1; 
   }  

  }
  GUI.Label(new Rect(320,100,150,70),"DataBaseTest");
  GUI.Label(new Rect(300,210,150,70),strID);
  GUI.Label(new Rect(300,320,150,70),strName);
  GUI.Label(new Rect(300,430,150,70),strSex);

}
}