перенос настроек базы даный в конфиг

src/main/java/ru/prisonlife/PrisonAPI/PrisonAPI.java

@@ -37,10 +37,14 @@ public class PrisonAPI extends JavaPlugin {
     public static Connection CONN;
 
     public void onEnable() {
+        saveDefaultConfig();
+
+        final String dbUrl = getConfig().getString("database.url");
+        final String dbUser = getConfig().getString("database.user");
+        final String dbPasswd = getConfig().getString("database.password");
+
         try {
-            CONN = DriverManager.getConnection(
-                    "jdbc:mysql://localhost:3306/prison4life",
-                    "root", "root");
+            CONN = DriverManager.getConnection(dbUrl, dbUser, dbPasswd);
         } catch (SQLException e) {
             e.printStackTrace();
         }

src/main/resources/config.yml

@@ -0,0 +1,4 @@
+database:
+  url: jdbc:mysql://localhost:3306/prison4life
+  user: root
+  password: root