在unity3d中连接数据库

1. using System;  
2. using System.Collections;  
3. using System.Data;  
4. using MySql.Data.MySqlClient;  
5. public class CMySql : MonoBehaviour {  
6.     // Global variables   
7.     public static MySqlConnection dbConnection;//Just like MyConn.conn in StoryTools before   
8.      static string host = "192.168.1.100";  
9.      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   
10.      static string pwd = "123456";  
11.      static string database = "test";  
12.      static string result = "";  
13.       
14. private string strCommand = "Select * from unity3d_test ORDER BY id;";  
15. public static DataSet MyObj;  
16.      void OnGUI()  
17.      {  
18.          host = GUILayout.TextField( host, 200, GUILayout.Width(200));  
19.          id = GUILayout.TextField( id, 200, GUILayout.Width(200));  
20.          pwd = GUILayout.TextField( pwd, 200, GUILayout.Width(200));  
21.          if(GUILayout.Button("Test"))  
22.          {  
23.     string connectionString = string.Format("Server = {0}; Database = {1}; User ID = {2}; Password = {3};",host,database,id,pwd);  
24.     openSqlConnection(connectionString);  
25.       
26.     MyObj = GetDataSet(strCommand);  
27.          }   
28.          GUILayout.Label(result);  
29.      }    
30.     // On quit   
31.     public static void OnApplicationQuit() {  
32.         closeSqlConnection();  
33.     }  
34.      
35.     // Connect to database   
36.     private static void openSqlConnection(string connectionString) {  
37.         dbConnection = new MySqlConnection(connectionString);  
38.         dbConnection.Open();  
39.         result = dbConnection.ServerVersion;  
40.         //Debug.Log("Connected to database."+result);   
41.     }  
42.      
43.     // Disconnect from database   
44.     private static void closeSqlConnection() {  
45.         dbConnection.Close();  
46.         dbConnection = null;  
47.         //Debug.Log("Disconnected from database."+result);   
48.     }  
49.       
50.     // MySQL Query   
51.     public static void doQuery(string sqlQuery) {  
52.         IDbCommand dbCommand = dbConnection.CreateCommand();      
53.         dbCommand.CommandText = sqlQuery;  
54.         IDataReader reader = dbCommand.ExecuteReader();  
55.         reader.Close();  
56.         reader = null;  
57.         dbCommand.Dispose();  
58.         dbCommand = null;  
59.     }  
60.     #region Get DataSet   
61.     public  DataSet GetDataSet(string sqlString)  
62.     {  
63.         //string sql = UnicodeAndANSI.UnicodeAndANSI.UnicodeToUtf8(sqlString);   
64.     
65.     
66.   DataSet ds = new DataSet();  
67.         try  
68.         {  
69.             MySqlDataAdapter da = new MySqlDataAdapter(sqlString, dbConnection);  
70.             da.Fill(ds);  
71.      
72.         }  
73.         catch (Exception ee)  
74.         {  
75.      
76.             throw new Exception("SQL:" + sqlString + "/n" + ee.Message.ToString());  
77.         }  
78.         return ds;  
79.     
80.     }  
81.     #endregion    
82. }  

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 } 

C#代码：

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);

}
}

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); } } 

2.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

3.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)

4.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

5.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

6.總結 
  以上部份是有關連線至數據庫後 , 再將資料用DataSet的方式獲得出來再加以顯示至介面上 , 歡迎各位高手能夠多多批評指教