纳金网

标题: Unity引擎链接mySQL数据库 [打印本页]

作者: star-小虎 时间: 2013-10-15 15:15
标题: Unity引擎链接mySQL数据库
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";
   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);

}
}
2.導入dll
  同先前的帖子 , 將MySql.data.dllImport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"ClickMe"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

作者: huhumark 时间: 2013-11-23 16:43
有没有访问权限的问题

作者: 幽默人生 时间: 2013-12-1 12:37
顶楼主！！！！！！！！！！！！！！！

作者: gibson0916 时间: 2013-12-1 17:07
感謝芬想喔~~~~~~~~~~~~~~

欢迎光临纳金网 (http://wwww.narkii.com/club/)