Java 无法强制转换为org.bukkit.entity.Player
我是bukkit 1.8.3编程的初学者，但在测试时我正在为我的服务器制作一个命令包，现在我发现了这个错误。假设我想操作我自己，我键入op命令，出现此错误。假设heal命令没有此错误。以下是错误日志：Java 无法强制转换为org.bukkit.entity.Player,java,bukkit,Java,Bukkit,我是bukkit 1.8.3编程的初学者，但在测试时我正在为我的服务器制作一个命令包，现在我发现了这个错误。假设我想操作我自己，我键入op命令，出现此错误。假设heal命令没有此错误。以下是错误日志： 11:33:56 PM [WARN] Unexpected exception while parsing console command "heal Herobrine112211" 11:33:56 PM org.bukkit.command.CommandException: Unhandl
11:33:56 PM [WARN] Unexpected exception while parsing console command "heal Herobrine112211"
11:33:56 PM org.bukkit.command.CommandException: Unhandled exception executing command 'heal' in plugin UltimateCommandPack v1.0.5
11:33:56 PM at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46) ~[bukkit.jar:git-Bukkit-61ef214]
11:33:56 PM at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:140) ~[bukkit.jar:git-Bukkit-61ef214]
11:33:56 PM at org.bukkit.craftbukkit.v1_8_R2.CraftServer.dispatchCommand(CraftServer.java:625) ~[bukkit.jar:git-Bukkit-61ef214]
11:33:56 PM at org.bukkit.craftbukkit.v1_8_R2.CraftServer.dispatchServerCommand(CraftServer.java:611) [bukkit.jar:git-Bukkit-61ef214]
11:33:56 PM at net.minecraft.server.v1_8_R2.DedicatedServer.aN(DedicatedServer.java:372) [bukkit.jar:git-Bukkit-61ef214]
11:33:56 PM at net.minecraft.server.v1_8_R2.DedicatedServer.A(DedicatedServer.java:337) [bukkit.jar:git-Bukkit-61ef214]
11:33:56 PM at net.minecraft.server.v1_8_R2.MinecraftServer.z(MinecraftServer.java:626) [bukkit.jar:git-Bukkit-61ef214]
11:33:56 PM at net.minecraft.server.v1_8_R2.MinecraftServer.run(MinecraftServer.java:534) [bukkit.jar:git-Bukkit-61ef214]
11:33:56 PM at java.lang.Thread.run(Unknown Source) [?:1.7.0_75]
11:33:56 PM Caused by: java.lang.ClassCastException: org.bukkit.craftbukkit.v1_8_R2.command.ColouredConsoleSender cannot be cast to org.bukkit.entity.Player
11:33:56 PM at me.herobrine112211.ulticmdpack.System.onCommand(System.java:39) ~[?:?]
11:33:56 PM at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) ~[bukkit.jar:git-Bukkit-61ef214]
11:33:56 PM ... 8 more
package me.herobrine112211.ulticmdpack;
import org.bukkit.Bukkit;
import org.bukkit.ChatColor;
import org.bukkit.command.Command;
import org.bukkit.command.CommandSender;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.player.PlayerJoinEvent;
import org.bukkit.plugin.java.JavaPlugin;
public class System extends JavaPlugin implements Listener{
public void onEnable() {
getConfig().options().copyDefaults(true);
saveConfig();
Bukkit.getServer().getPluginManager().registerEvents(this, this);
Bukkit.getServer().getLogger().info("Ultimate Command Pack Plugin has been actived!");
}
public void onDisable() {
Bukkit.getServer().getLogger().info("Ultimate Command Pack Plugin has been disabled! This will give big problems to server.");
}
@EventHandler
public void onPlayerJoin(PlayerJoinEvent joinevent){
Player getplayer = joinevent.getPlayer();
getplayer.sendMessage(ChatColor.AQUA + "Hey " + getplayer.getName() + "! Welcome to the Ultimate Prison server!");
if(getplayer.getName().equals("Herobrine112211")){
Bukkit.getServer().broadcastMessage(ChatColor.WHITE + "[" + ChatColor.GOLD + "BROADCAST" + ChatColor.WHITE + "] " + ChatColor.GOLD + "Server Creator Herobrine112211 has joined the game!!!!!!!!!!");
}
}
@SuppressWarnings("deprecation")
public boolean onCommand(CommandSender sender, Command cmd, String commandLabel, String[] args){
Player player = (Player) sender;
if (cmd.getName().equalsIgnoreCase("contactowner")) {
if (!sender.hasPermission("contactowner")){
sender.sendMessage(ChatColor.RED + "Access denied.");
return true;
}
if (!(sender instanceof Player)) {
sender.sendMessage(ChatColor.RED + "Console will never need owner support.");
return true;
}
player.sendMessage(ChatColor.GOLD + "Owner: Herobrine112211. Live chat skype: gangsteris33.");
}
if (cmd.getName().equalsIgnoreCase("reloadconfig")){
if (!sender.hasPermission("config.reload")){
sender.sendMessage(ChatColor.RED + "Access denied.");
return true;
}
reloadConfig();
sender.sendMessage(ChatColor.RED + "Server config reloaded successfully.");
return true;
}
if (cmd.getName().equalsIgnoreCase("saveconfig")){
if (!sender.hasPermission("config.save")){
sender.sendMessage(ChatColor.RED + "Access denied.");
return true;
}
reloadConfig();
sender.sendMessage(ChatColor.RED + "Server config saved successfully.");
return true;
}
if (cmd.getName().equalsIgnoreCase("fakeop")) {
if (!sender.hasPermission("fake.op")){
sender.sendMessage(ChatColor.RED + "Access denied.");
return true;
}
if (args.length == 0) {
sender.sendMessage(ChatColor.RED + "Please specify a player!");
return true;
}
Player target = Bukkit.getServer().getPlayer(args[0]);
if (target == null) {
sender.sendMessage(ChatColor.RED + "Player must be online!");
return true;
}
target.sendMessage(ChatColor.YELLOW + "You are now op!");
}
if (cmd.getName().equalsIgnoreCase("fakejoin")) {
if (!sender.hasPermission("fake.join")){
sender.sendMessage(ChatColor.RED + "Access denied.");
return true;
}
if (args.length == 0) {
sender.sendMessage(ChatColor.RED + "Please specify a name!");
return true;
}
Bukkit.getServer().broadcastMessage(ChatColor.YELLOW + args[0] + " joined the game.");
}
if (cmd.getName().equalsIgnoreCase("broadcast")) {
if (!sender.hasPermission("broadcast")){
sender.sendMessage(ChatColor.RED + "Access denied.");
return true;
}
if (args.length == 0) {
sender.sendMessage(ChatColor.RED + "Please give a message to broadcast!");
return true;
}
StringBuilder strbl = new StringBuilder();
for(int i = 0; i < args.length; i++){
strbl.append(args[i] + " ");
}
String broadcastas = strbl.toString();
Bukkit.getServer().broadcastMessage(ChatColor.WHITE + "[" + ChatColor.GOLD + "BROADCAST" + ChatColor.WHITE + "] " + ChatColor.RED + broadcastas);
}
if (cmd.getName().equalsIgnoreCase("heal")) {
if (!sender.hasPermission("heal")){
sender.sendMessage(ChatColor.RED + "Access denied.");
return true;
}
if (args.length == 0) {
player.setHealth(20);
player.setFireTicks(0);
sender.sendMessage(ChatColor.GREEN + "Your health is now full!");
return true;
}
Player target = Bukkit.getServer().getPlayer(args[0]);
if (target == null) {
sender.sendMessage(ChatColor.RED + "Player must be online to be healed!");
return true;
}
target.setHealth(20);
target.setFireTicks(0);
target.sendMessage(ChatColor.GREEN + sender.getName() + " healed you!");
sender.sendMessage(ChatColor.GREEN + target.getName() + " is healed!");
}
if (cmd.getName().equalsIgnoreCase("feed")) {
if (!sender.hasPermission("feed")){
sender.sendMessage(ChatColor.RED + "Access denied.");
return true;
}
if (args.length == 0) {
player.setFoodLevel(20);
sender.sendMessage(ChatColor.GREEN + "Your hunger is now full!");
return true;
}
Player target = Bukkit.getServer().getPlayer(args[0]);
if (target == null) {
sender.sendMessage(ChatColor.RED + "Player must be online to be fed!");
return true;
}
target.setFoodLevel(20);
target.sendMessage(ChatColor.GREEN + sender.getName() + " fed you!");
sender.sendMessage(ChatColor.GREEN + target.getName() + " hunger is now full!");
}
return true;
}
}
package me.herobrine11211.ulticmdpack；
导入org.bukkit.bukkit；
导入org.bukkit.ChatColor；
导入org.bukkit.command.command；
导入org.bukkit.command.CommandSender；
导入org.bukkit.entity.Player；
导入org.bukkit.event.EventHandler；
导入org.bukkit.event.Listener；
导入org.bukkit.event.player.PlayerJoinEvent；
导入org.bukkit.plugin.java.JavaPlugin；
公共类系统扩展JavaPlugin实现监听器{
public void onEnable（）{
getConfig（）.options（）.copyDefaults（true）；
saveConfig（）；
Bukkit.getServer（）.getPluginManager（）.registerEvents（这个，这个）；
Bukkit.getServer（）.getLogger（）.info（“终极命令包插件已激活！”）；
}
公共无效不可撤销（）{
Bukkit.getServer（）.getLogger（）.info（“终极命令包插件已被禁用！这将给服务器带来大问题。”）；
}
@事件处理程序
PlayerJoin（PlayerJoinEvent joinevent）上的公共无效{
Player getplayer=joinevent.getplayer（）；
getplayer.sendMessage（ChatColor.AQUA+“嘿”+getplayer.getName（）+“！欢迎来到终极监狱服务器！”）；
if（getplayer.getName（）.equals（“Herobrine11211”））{
Bukkit.getServer（）.broadcastMessage（ChatColor.WHITE+“[”+ChatColor.GOLD+“BROADCAST”+ChatColor.WHITE+“]”+ChatColor.GOLD+“服务器创建者Herobrine11211已加入游戏！！！！！！！”；
}
}
@抑制警告（“弃用”）
公共布尔onCommand（CommandSender-sender、Command cmd、String commandLabel、String[]args）{
玩家=（玩家）发送者；
if（cmd.getName（）.equalsIgnoreCase（“contactowner”））{
如果（！sender.hasPermission（“contactowner”））{
sender.sendMessage（ChatColor.RED+“拒绝访问”）；
返回true；
}
如果（！（播放机的发送方实例））{
sender.sendMessage（ChatColor.RED+“控制台永远不需要所有者支持。”）；
返回true；
}
player.sendMessage（ChatColor.GOLD+“所有者：Herobrine11211。在线聊天skype:Gangsters33”）；
}
if（cmd.getName（）.equalsIgnoreCase（“重载配置”））{
如果（！sender.hasPermission（“config.reload”））{
sender.sendMessage（ChatColor.RED+“拒绝访问”）；
返回true；
}
重载配置（）；
sender.sendMessage（ChatColor.RED+“服务器配置已成功重新加载”）；
返回true；
}
if（cmd.getName（）.equalsIgnoreCase（“saveconfig”））{
如果（！sender.hasPermission（“config.save”））{
sender.sendMessage（ChatColor.RED+“拒绝访问”）；
返回true；
}
重载配置（）；
sender.sendMessage（ChatColor.RED+“已成功保存服务器配置”）；
返回true；
}
if（cmd.getName（）.equalsIgnoreCase（“fakeop”））{
如果（！sender.hasPermission（“fake.op”））{
sender.sendMessage（ChatColor.RED+“拒绝访问”）；
返回true；
}
如果（args.length==0）{
sender.sendMessage（ChatColor.RED+“请指定一名玩家！”）；
返回true；
}
Player target=Bukkit.getServer（）.getPlayer（args[0]）；
if（target==null）{
sender.sendMessage（ChatColor.RED+“玩家必须在线！”）；
返回true；
}
sendMessage（ChatColor.YELLOW+“您现在是op！”）；
}
if（cmd.getName（）.equalsIgnoreCase（“fakejoin”））{
如果（！sender.hasPermission（“fake.join”））{
sender.sendMessage（ChatColor.RED+“拒绝访问”）；
返回true；
}
如果（args.length==0）{
sender.sendMessage（ChatColor.RED+“请指定一个名称！”）；
返回true；
}
Bukkit.getServer（）.broadcastMessage（ChatColor.YELLOW+args[0]+“已加入游戏”）；
}
if（cmd.getName（）.equalsIgnoreCase（“广播”））{
如果（！sender.hasPermission（“广播”））{
sender.sendMessage（ChatColor.RED+“拒绝访问”）；
返回true；
}
如果（args.length==0）{
sender.sendMessage（ChatColor.RED+“请给广播一条消息！”）；
返回true；
}
StringBuilder strbl=新的StringBuilder（）；
对于（int i=0；iname: UltimateCommandPack
version: 1.0.5
main: me.herobrine112211.ulticmdpack.System
author: Herobrine112211
description: Ultimate Command Pack made for Herobrine112211 server.
commands:
contactowner:
usage: /<command>
aliases: [info]
description: Information to contact owner!
heal:
usage: /<command>
aliases: [health]
description: Healing command.
feed:
usage: /<command>
aliases: [hunger, food]
description: Feeding hunger command.
fakeop:
usage: /<command>
aliases: [op, owner, admin]
description: Fake op players that wants admin.
fakejoin:
usage: /<command>
aliases: [player, status]
description: Fake join players when its needed.
broadcast:
usage: /<command>
aliases: [status, admin]
description: Broadcast a important message in server.
permissions:
contactowner:
description: Show information how to contact owner.
default: true
config.reload:
description: Reload plugin config file.
default: op
config.save:
description: Save plugin config file.
default: op
fake.op:
description: Give fake op to players.
default: op
fake.join:
description: Fake join any player using any name.
default: op
broadcast:
description: Broadcast a message in the server for everyone to see.
default: op
heal:
description: Heal any player or yourself.
default: op
feed:
description: Feed any player or yourself.
default: op
if(!(sender instanceof Player)){
//the sender is not a Player
return false;
}
Player player = (Player) sender;
//this can now be run safely, because
//we know that the sender has to
//be a Player