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https://github.com/ColdeZhang/Dominion.git
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实现了缓存机制
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src/main/java/cn/lunadeer/dominion/Cache.java
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120
src/main/java/cn/lunadeer/dominion/Cache.java
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@ -0,0 +1,120 @@
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package cn.lunadeer.dominion;
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import cn.lunadeer.dominion.dtos.DominionDTO;
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import cn.lunadeer.dominion.dtos.PlayerPrivilegeDTO;
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import cn.lunadeer.dominion.utils.Notification;
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import cn.lunadeer.dominion.utils.XLogger;
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import org.bukkit.entity.Player;
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import javax.annotation.Nullable;
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import java.util.*;
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public class Cache {
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public Cache() {
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player_current_dominion = new HashMap<>();
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loadDominions();
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loadPlayerPrivileges();
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}
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/**
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* 从数据库加载所有领地
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*/
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public void loadDominions() {
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world_dominions = new HashMap<>();
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List<DominionDTO> dominions = DominionDTO.selectAll();
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for (DominionDTO d : dominions) {
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if (!world_dominions.containsKey(d.getWorld())) {
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world_dominions.put(d.getWorld(), new ArrayList<>());
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}
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world_dominions.get(d.getWorld()).add(d);
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}
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}
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/**
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* 从数据库加载所有玩家特权
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*/
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public void loadPlayerPrivileges() {
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player_current_dominion = new HashMap<>();
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List<PlayerPrivilegeDTO> all_privileges = PlayerPrivilegeDTO.selectAll();
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if (all_privileges == null) {
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XLogger.err("加载玩家特权失败");
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return;
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}
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player_uuid_to_privilege = new HashMap<>();
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for (PlayerPrivilegeDTO privilege : all_privileges) {
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UUID player_uuid = privilege.getPlayerUUID();
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if (!player_uuid_to_privilege.containsKey(player_uuid)) {
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player_uuid_to_privilege.put(player_uuid, new HashMap<>());
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}
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player_uuid_to_privilege.get(player_uuid).put(privilege.getDomID(), privilege);
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}
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}
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/**
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* 获取玩家当前所在领地
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* 此方法会先判断缓存中是否有玩家当前所在领地，如果没有则遍历所有领地判断玩家所在位置
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* 如果玩家不在任何领地内，则返回null
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* 如果玩家在领地内，则返回领地信息
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*
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* @param player 玩家
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* @return 玩家当前所在领地
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*/
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public DominionDTO getPlayerCurrentDominion(Player player) {
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DominionDTO dominion = player_current_dominion.get(player.getUniqueId());
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if (dominion != null) {
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if (!isInDominion(dominion, player)) {
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Notification.info(player, "您已离开领地：" + dominion.getName());
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Notification.info(player, dominion.getLeaveMessage());
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player_current_dominion.put(player.getUniqueId(), null);
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dominion = null;
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}
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}
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if (dominion == null) {
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String world = player.getWorld().getName();
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List<DominionDTO> dominions = world_dominions.get(world);
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if (dominions == null) return null;
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List<DominionDTO> in_dominions = new ArrayList<>();
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for (DominionDTO d : dominions) {
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if (isInDominion(d, player)) {
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in_dominions.add(d);
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}
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}
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if (in_dominions.size() == 0) return null;
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in_dominions.sort(Comparator.comparingInt(DominionDTO::getId));
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dominion = in_dominions.get(in_dominions.size() - 1);
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player_current_dominion.put(player.getUniqueId(), dominion);
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Notification.info(player, "您正在进入领地：" + dominion.getName());
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Notification.info(player, dominion.getJoinMessage());
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}
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return dominion;
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}
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/**
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* 获取玩家在指定领地的特权
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* 如果玩家不存在特权，则返回null
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*
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* @param player 玩家
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* @param dominion 领地
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* @return 特权表
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*/
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public PlayerPrivilegeDTO getPlayerPrivilege(Player player, DominionDTO dominion) {
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if (!player_uuid_to_privilege.containsKey(player.getUniqueId())) return null;
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return player_uuid_to_privilege.get(player.getUniqueId()).get(dominion.getId());
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}
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private static boolean isInDominion(@Nullable DominionDTO dominion, Player player) {
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if (dominion == null) return false;
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double x = player.getLocation().getX();
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double y = player.getLocation().getY();
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double z = player.getLocation().getZ();
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return x >= dominion.getX1() && x <= dominion.getX2() &&
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y >= dominion.getY1() && y <= dominion.getY2() &&
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z >= dominion.getZ1() && z <= dominion.getZ2();
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}
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public static Cache instance;
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private Map<String, List<DominionDTO>> world_dominions; // 所有领地
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private Map<UUID, Map<Integer, PlayerPrivilegeDTO>> player_uuid_to_privilege; // 玩家所有的特权
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private Map<UUID, DominionDTO> player_current_dominion; // 玩家当前所在领地
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}
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@ -20,6 +20,7 @@ public final class Dominion extends JavaPlugin {
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config = new ConfigManager(this);
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dbConnection = Database.createConnection();
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Database.migrate();
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Cache.instance = new Cache();
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Bukkit.getPluginManager().registerEvents(new PlayerEvents(), this);
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Objects.requireNonNull(Bukkit.getPluginCommand("dominion")).setExecutor(new Commands());
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@ -1,5 +1,6 @@
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package cn.lunadeer.dominion.dtos;
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import cn.lunadeer.dominion.Cache;
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import cn.lunadeer.dominion.utils.Database;
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import cn.lunadeer.dominion.utils.XLogger;
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@ -69,6 +70,10 @@ public class DominionDTO {
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rs.getBoolean("harvest"));
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dominions.add(dominion);
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}
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if (sql.contains("UPDATE") || sql.contains("DELETE") || sql.contains("INSERT")) {
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// 如果是更新操作，重新加载缓存
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Cache.instance.loadDominions();
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}
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} catch (SQLException e) {
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XLogger.err("Database query failed: " + e.getMessage());
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XLogger.err("SQL: " + sql);
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@ -177,7 +182,7 @@ public class DominionDTO {
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"cake = " + dominion.getCake() + ", " +
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"container = " + dominion.getContainer() + ", " +
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"craft = " + dominion.getCraft() + ", " +
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"creeper_explode = " + dominion.getCreeperExplode() + ", " +
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"creeper_explode = " + dominion.getCreeperExplode() + ", " + // dom only
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"diode = " + dominion.getDiode() + ", " +
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"door = " + dominion.getDoor() + ", " +
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"dye = " + dominion.getDye() + ", " +
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@ -185,8 +190,8 @@ public class DominionDTO {
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"enchant = " + dominion.getEnchant() + ", " +
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"ender_pearl = " + dominion.getEnderPearl() + ", " +
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"feed = " + dominion.getFeed() + ", " +
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"fire_spread = " + dominion.getFireSpread() + ", " +
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"flow_in_protection = " + dominion.getFlowInProtection() + ", " +
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"fire_spread = " + dominion.getFireSpread() + ", " + // dom only
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"flow_in_protection = " + dominion.getFlowInProtection() + ", " + // dom only
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"glow = " + dominion.getGlow() + ", " +
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"grow = " + dominion.getGrow() + ", " +
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"honey = " + dominion.getHoney() + ", " +
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@ -199,10 +204,10 @@ public class DominionDTO {
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"riding = " + dominion.getRiding() + ", " +
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"shear = " + dominion.getShear() + ", " +
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"shoot = " + dominion.getShoot() + ", " +
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"tnt_explode = " + dominion.getTntExplode() + ", " +
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"tnt_explode = " + dominion.getTntExplode() + ", " + // dom only
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"trade = " + dominion.getTrade() + ", " +
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"vehicle_destroy = " + dominion.getVehicleDestroy() + ", " +
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"wither_spawn = " + dominion.getWitherSpawn() + ", " +
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"wither_spawn = " + dominion.getWitherSpawn() + ", " + // dom only
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"harvest = " + dominion.getHarvest() +
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" WHERE id = " + dominion.getId() +
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" RETURNING *;";
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@ -1,5 +1,6 @@
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package cn.lunadeer.dominion.dtos;
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import cn.lunadeer.dominion.Cache;
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import cn.lunadeer.dominion.utils.Database;
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import cn.lunadeer.dominion.utils.XLogger;
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@ -40,6 +41,11 @@ public class PlayerPrivilegeDTO {
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query(sql);
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}
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public static List<PlayerPrivilegeDTO> selectAll(){
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String sql = "SELECT * FROM player_privilege;";
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return query(sql);
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}
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private final Integer id;
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private final UUID playerUUID;
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private Boolean admin;
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@ -476,6 +482,10 @@ public class PlayerPrivilegeDTO {
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);
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players.add(player);
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}
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if (sql.contains("UPDATE") || sql.contains("DELETE") || sql.contains("INSERT")){
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// 如果是更新操作，重新加载缓存
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Cache.instance.loadPlayerPrivileges();
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}
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} catch (Exception e) {
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XLogger.err("Database query failed: " + e.getMessage());
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XLogger.err("SQL: " + sql);
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@ -144,6 +144,7 @@ public class Database {
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" vehicle_destroy BOOLEAN NOT NULL DEFAULT FALSE," +
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" harvest BOOLEAN NOT NULL DEFAULT FALSE," +
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" UNIQUE (player_uuid, dom_id)," +
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" FOREIGN KEY (player_uuid) REFERENCES player_name(uuid)," +
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" FOREIGN KEY (dom_id) REFERENCES dominion(id)" +
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");";
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