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我有一个配置文件Homes.yml，我正在使用服务器上的用户存储区，以便能够在重新加载之间传送。目前，/ksethome命令正在工作，配置文件使用正确的坐标进行更新。用于玩家不允许远距传送的Java bukkit配置文件
但是，执行/khome命令时会引发错误。
这里是Homes.yml
Homes:
Kalenpw:
==: org.bukkit.Location
yaw: 174.53154
pitch: 18.115198
z: 89.15419690166142
y: 100.0
world: Khalidor
x: 99.43791494211929
副本，这里是一个插件的拷贝
//@kalenpw
package com.Khalidor.testplugin;
import java.util.HashMap;
import org.bukkit.Bukkit;
import org.bukkit.ChatColor;
import org.bukkit.Location;
import org.bukkit.World;
import org.bukkit.command.Command;
import org.bukkit.command.CommandSender;
import org.bukkit.entity.Player;
import org.bukkit.plugin.java.JavaPlugin;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.player.PlayerJoinEvent;
import org.bukkit.inventory.PlayerInventory;
public final class TestPlugin extends JavaPlugin implements Listener {
MyConfigManager manager;
MyConfig homesConfig;
HashMap<String, Location> playerHomes = new HashMap<String, Location>();
@Override
public void onEnable() {
getLogger().info("onEable has been invoked!");
getServer().getPluginManager().registerEvents(this, this);
manager = new MyConfigManager(this);
homesConfig = manager.getNewConfig("Homes.yml");
// TODO add stuff to hashmap onEnable()
}
@Override
public void onDisable() {
// when plugin is disabled
getLogger().info("onDisable has been invoked");
}
public boolean onCommand(CommandSender sender, Command cmd, String label, String[] args) {
if (sender instanceof Player) {
Player user = (Player) sender;
// Sethome
if (label.equalsIgnoreCase("KSetHome")) {
playerHomes.put(user.getName(), user.getLocation());
homesConfig.set("Homes." + user.getName(), user.getLocation());
homesConfig.saveConfig();
user.sendMessage(ChatColor.GOLD + "Set home!");
}
// TP home
if (label.equalsIgnoreCase("KHome")) {
// Location homeLocation = playerHomes.get(user.getName());
/*
* Location homeLocation = homesConfig.get("Homes." +
* user.getName(),);
*/
String worldName = homesConfig.getString("Homes." + user.getName() + ".world");
World homeWorld = Bukkit.getServer().getWorld(worldName);
double homeX = homesConfig.getDouble("Homes." + user.getName() + ".x");
double homeY = homesConfig.getDouble("Homes." + user.getName() + ".y");
double homeZ = homesConfig.getDouble("Homes." + user.getName() + ".z");
Location homeLocation = new Location(homeWorld, homeX, homeY, homeZ);
user.teleport(homeLocation);
user.sendMessage(ChatColor.GOLD + "Teleported home!");
}
return true;
}
// Not executed by player
return false;
}
}
最后是错误的副本：
[21:25:01 INFO]: Kalenpw issued server command: /ksethome
[21:25:04 INFO]: Kalenpw issued server command: /khome
[21:25:04 ERROR]: null
org.bukkit.command.CommandException: Unhandled exception executing command 'khome' in plugin TestPlugin v1.0
at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46) ~[spigot-1.9.2.jar:git-Spigot-5a40365-b70058a]
at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:141) ~[spigot-1.9.2.jar:git-Spigot-5a40365-b70058a]
at org.bukkit.craftbukkit.v1_9_R1.CraftServer.dispatchCommand(CraftServer.java:645) ~[spigot-1.9.2.jar:git-Spigot-5a40365-b70058a]
at net.minecraft.server.v1_9_R1.PlayerConnection.handleCommand(PlayerConnection.java:1350) [spigot-1.9.2.jar:git-Spigot-5a40365-b70058a]
at net.minecraft.server.v1_9_R1.PlayerConnection.a(PlayerConnection.java:1185) [spigot-1.9.2.jar:git-Spigot-5a40365-b70058a]
at net.minecraft.server.v1_9_R1.PacketPlayInChat.a(PacketPlayInChat.java:45) [spigot-1.9.2.jar:git-Spigot-5a40365-b70058a]
at net.minecraft.server.v1_9_R1.PacketPlayInChat.a(PacketPlayInChat.java:1) [spigot-1.9.2.jar:git-Spigot-5a40365-b70058a]
at net.minecraft.server.v1_9_R1.PlayerConnectionUtils$1.run(SourceFile:13) [spigot-1.9.2.jar:git-Spigot-5a40365-b70058a]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) [?:1.7.0_85]
at java.util.concurrent.FutureTask.run(FutureTask.java:262) [?:1.7.0_85]
at net.minecraft.server.v1_9_R1.SystemUtils.a(SourceFile:45) [spigot-1.9.2.jar:git-Spigot-5a40365-b70058a]
at net.minecraft.server.v1_9_R1.MinecraftServer.D(MinecraftServer.java:721) [spigot-1.9.2.jar:git-Spigot-5a40365-b70058a]
at net.minecraft.server.v1_9_R1.DedicatedServer.D(DedicatedServer.java:400) [spigot-1.9.2.jar:git-Spigot-5a40365-b70058a]
at net.minecraft.server.v1_9_R1.MinecraftServer.C(MinecraftServer.java:660) [spigot-1.9.2.jar:git-Spigot-5a40365-b70058a]
at net.minecraft.server.v1_9_R1.MinecraftServer.run(MinecraftServer.java:559) [spigot-1.9.2.jar:git-Spigot-5a40365-b70058a]
at java.lang.Thread.run(Thread.java:745) [?:1.7.0_85]
Caused by: java.lang.IllegalArgumentException: Name cannot be null
at org.apache.commons.lang.Validate.notNull(Validate.java:192) ~[spigot-1.9.2.jar:git-Spigot-5a40365-b70058a]
at org.bukkit.craftbukkit.v1_9_R1.CraftServer.getWorld(CraftServer.java:1022) ~[spigot-1.9.2.jar:git-Spigot-5a40365-b70058a]
at com.Khalidor.testplugin.TestPlugin.onCommand(TestPlugin.java:152) ~[?:?]
at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) ~[spigot-1.9.2.jar:git-Spigot-5a40365-b70058a]
... 15 more
我已经做了一些谷歌搜索，似乎无法弄清楚我做错了什么。从我可以告诉我创建位置对象从Homes.yml错误，因为我可以切换代码只使用一个哈希映射，它工作正常，这也消除了plugin.yml作为问题。谢谢您的帮助！
编辑：
从TestPlugin.java
152线World homeWorld = Bukkit.getServer().getWorld(worldName);
编辑：
显然这个问题是每一个方式，我已经走了约让我的世界返回null。我用Bukkit.broadcastMessage(Bukkit.getWorlds().toString());进行检查，以确保我使用正确的字符串从广播中获取世界并广播[CraftWorld{name=Khalidor}, CraftWorld{name=Khalidor_nether}, CraftWorld{name=Khalidor_the_end}]我不处于虚空或最终状态因此，在我看来，它应该在拾取这个世界。
当我运行这些String worldName = homesConfig.getString("Homes." + user.getName() + ".world"); Bukkit.broadcastMessage(worldName);
我得到这么不管是什么原因，我得到空回，而不是我的世界名的空指针异常。还在搞清楚为什么会这样。
编辑：
所以我想通了，这个问题是我的YML文件，而不是使用从Homes.yml我刚刚进入我的世界的字符串，字符串，现在所有读取XYZ位置为0所以出于某种原因，它读错了。
编辑：解决了这个问题不在YML文件中，但我有一行代码留在了早期的测试中，导致了YML的问题，因为我保存了x y z然后覆盖了一个位置。
TestPlugin.java line 152 ...它是什么？ –
@ cricket_007 World homeWorld = Bukkit.getServer（）。getWorld（worldName）; – kalenpw
并且“IllegalArgumentException：名称不能为空”意味着什么给你？ –