Fix SQL Bug

DB/DBUpdate.java

@@ -0,0 +1,61 @@
+package org.poopki.duckdns.user_db.DB;
+
+import org.poopki.duckdns.user_db.UserInfoArray;
+
+import java.sql.*;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.UUID;
+
+public class DBUpdate {
+    private static final String DB_DRIVER_CLASS = "org.mariadb.jdbc.Driver";
+    private static final String DB_URL = "jdbc:mariadb://poopki.duckdns.org:3307/mc_dev";
+    private static final String DB_USERNAME = "mc_dev";
+    private static final String DB_PASSWORD = "!Rkdalsrn1027";
+    private static UserInfoArray m_InfoArrayInstance;
+
+    public DBUpdate(UserInfoArray m_UIA){
+        m_InfoArrayInstance = m_UIA;
+    }
+
+    public static void UpdateDB(){
+        Connection conn = null;
+        Statement stmt = null;
+
+        try {
+            Class.forName("org.mariadb.jdbc.Driver");
+
+            conn = DriverManager.getConnection(DB_URL, DB_USERNAME, DB_PASSWORD);
+            System.out.println("Connection success");
+            stmt = conn.createStatement();
+            StringBuilder sb = new StringBuilder();
+            String sql = sb.append("create table if not exists UserInfo(")
+                    .append("UUID varchar(36)")
+/*                    .append("Nation int,")
+                    .append("Occupation TINYINT,")
+                    .append("Squad int,")
+                    .append("Farm int,")
+                    .append("Account int,")*/
+                    .append(")").toString();
+                    stmt.execute(sql);
+
+            for (UUID key : m_InfoArrayInstance.m_UserInfoArray.keySet()) {
+                //sql = sb.append("insert into UserInfo values('"+key+"',"+0+","+0+","+0+","+0+","+0+")").toString();
+                sql = sb.append("insert into UserInfo (UUID) value ('"+key.toString()+ "')").toString();
+                stmt.execute(sql);
+            }
+        }
+        catch (ClassNotFoundException e) {
+            e.printStackTrace();
+        }
+        catch (SQLException e) {
+            // TODO Auto-generated catch block
+            System.err.println("에러 내용 :" + e.getMessage());
+            System.out.println("DB Connection fail");
+        }
+
+
+    }
+
+}

UserInfoArray.java

@@ -7,7 +7,7 @@ import java.util.Map;
 import java.util.UUID;
 
 public class UserInfoArray {
-    static Map<UUID, UserInfo> m_UserInfoArray = new HashMap<UUID, UserInfo>();
+    public static Map<UUID, UserInfo> m_UserInfoArray = new HashMap<UUID, UserInfo>();
 
     public void getUserInfo(Player p) {
         UserInfo m_UserInfo = m_UserInfoArray.get(p.getUniqueId());

UserJoin.java

@@ -5,18 +5,18 @@ import org.bukkit.event.Listener;
 import org.bukkit.event.player.PlayerJoinEvent;
 
 public class UserJoin implements Listener {
-    private UserInfoArray m_InfoArray;
+    private UserInfoArray m_InfoArrayInstance;
     UserJoin(UserInfoArray m_UIA){
-        m_InfoArray = m_UIA;
+        m_InfoArrayInstance = m_UIA;
     }
     @EventHandler
     public void PlayerLogin(PlayerJoinEvent e) {
         Player p = e.getPlayer();
-        if(m_InfoArray.m_UserInfoArray.containsKey(p.getUniqueId())){
+        if(m_InfoArrayInstance.m_UserInfoArray.containsKey(p.getUniqueId())){
-            m_InfoArray.getUserInfo(p);
+            m_InfoArrayInstance.getUserInfo(p);
         }
         else{
-            m_InfoArray.putUserInfo(p);
+            m_InfoArrayInstance.putUserInfo(p);
         }
     }
 }

User_DB.java

@@ -8,17 +8,18 @@ import java.sql.Statement;
 
 
 public final class User_DB extends JavaPlugin implements Listener {
-    UserInfoArray m_UIA = new UserInfoArray();
+    UserInfoArray m_InfoArrayInstance = new UserInfoArray();
 
     @Override
     public void onEnable() {
         // Plugin startup logic
-        Connection conn = new DBConnect().connectDB();
+        getServer().getPluginManager().registerEvents(new UserJoin(m_InfoArrayInstance),this);
-        getServer().getPluginManager().registerEvents(new UserJoin(m_UIA),this);
     }
 
     @Override
     public void onDisable() {
         // Plugin shutdown logic
+        DBUpdate Database_backup = new DBUpdate(m_InfoArrayInstance);
+        Database_backup.UpdateDB();
     }
 }