Question

最近我开始使用Bukkit插件，因为使用两个类（main和CommandExecutor）而遇到了麻烦。我已经尝试了所有的东西，但是当我加载我的插件时，它会在帖子的末尾抛出一个错误。

Main（称为ekits.java）：

package me.mucapapipa.ekits;

import org.bukkit.Bukkit;
import org.bukkit.ChatColor;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.player.PlayerJoinEvent;
import org.bukkit.plugin.java.JavaPlugin;

public class ekits extends JavaPlugin implements Listener {


@Override
public void onEnable() {
    System.out.println("Main plugin enabled");
    getCommand("pvp").setExecutor(new NormalPlayer(this));
    getServer().getPluginManager().registerEvents(this, this);
}
@Override
public void onDisable() {
    System.out.println("Main plugin disabled");
}


}

CommandExecutor（名为NormalPlayer）：

package me.mucapapipa.ekits;

import org.bukkit.ChatColor;
import org.bukkit.Material;
import org.bukkit.command.Command;
import org.bukkit.command.CommandExecutor;
import org.bukkit.command.CommandSender;
import org.bukkit.entity.Player;
import org.bukkit.inventory.ItemStack;
import org.bukkit.plugin.java.JavaPlugin;

public class NormalPlayer extends JavaPlugin implements CommandExecutor {

@SuppressWarnings("unused")
private ekits core;
public NormalPlayer(ekits core) {
        this.core = core;
}

private String kit;

public boolean onCommand(CommandSender sender, Command cmd, String CommandLabel, String[] args) {

    if (sender instanceof Player) {
        Player player = (Player) sender;
        if (cmd.getName().equalsIgnoreCase("pvp")) {
            kit = "PvP";
            player.getInventory().clear();
            player.getInventory().addItem(new ItemStack(Material.DIAMOND_SWORD));
            player.getInventory().addItem(new ItemStack(Material.MUSHROOM_SOUP));
            player.getInventory().addItem(new ItemStack(Material.MUSHROOM_SOUP));
            player.getInventory().addItem(new ItemStack(Material.MUSHROOM_SOUP));
            player.getInventory().addItem(new ItemStack(Material.MUSHROOM_SOUP));
            player.getInventory().addItem(new ItemStack(Material.MUSHROOM_SOUP));
            player.getInventory().addItem(new ItemStack(Material.MUSHROOM_SOUP));
            player.getInventory().addItem(new ItemStack(Material.MUSHROOM_SOUP));
            player.getInventory().addItem(new ItemStack(Material.MUSHROOM_SOUP));
            player.getInventory().addItem(new ItemStack(Material.MUSHROOM_SOUP));
            player.getInventory().addItem(new ItemStack(Material.MUSHROOM_SOUP));
            player.getInventory().addItem(new ItemStack(Material.MUSHROOM_SOUP));
            player.getInventory().addItem(new ItemStack(Material.MUSHROOM_SOUP));
            player.getInventory().addItem(new ItemStack(Material.MUSHROOM_SOUP));
            player.getInventory().addItem(new ItemStack(Material.MUSHROOM_SOUP));
            player.getInventory().addItem(new ItemStack(Material.MUSHROOM_SOUP));
            player.getInventory().addItem(new ItemStack(Material.MUSHROOM_SOUP));
            player.getInventory().addItem(new ItemStack(Material.MUSHROOM_SOUP));
            player.getInventory().addItem(new ItemStack(Material.MUSHROOM_SOUP));
            player.getInventory().addItem(new ItemStack(Material.MUSHROOM_SOUP));
            player.getInventory().addItem(new ItemStack(Material.MUSHROOM_SOUP));
            player.getInventory().addItem(new ItemStack(Material.MUSHROOM_SOUP));
            player.getInventory().addItem(new ItemStack(Material.MUSHROOM_SOUP));
            player.getInventory().addItem(new ItemStack(Material.MUSHROOM_SOUP));
            player.getInventory().addItem(new ItemStack(Material.MUSHROOM_SOUP));
            player.getInventory().addItem(new ItemStack(Material.MUSHROOM_SOUP));
            player.getInventory().addItem(new ItemStack(Material.MUSHROOM_SOUP));
            player.getInventory().addItem(new ItemStack(Material.MUSHROOM_SOUP));
            player.getInventory().addItem(new ItemStack(Material.MUSHROOM_SOUP));
            player.getInventory().addItem(new ItemStack(Material.MUSHROOM_SOUP));
            player.getInventory().addItem(new ItemStack(Material.MUSHROOM_SOUP));
            player.getInventory().addItem(new ItemStack(Material.MUSHROOM_SOUP));
            player.getInventory().addItem(new ItemStack(Material.MUSHROOM_SOUP));
            player.getInventory().addItem(new ItemStack(Material.MUSHROOM_SOUP));
            player.getInventory().addItem(new ItemStack(Material.MUSHROOM_SOUP));
            player.getInventory().addItem(new ItemStack(Material.MUSHROOM_SOUP));
            /* We then set the armor */
            player.getInventory().setBoots(new ItemStack(Material.IRON_BOOTS));
            player.getInventory().setHelmet(new ItemStack(Material.IRON_HELMET));
            player.getInventory().setLeggings(new ItemStack(Material.IRON_LEGGINGS));
            player.getInventory().setChestplate(new ItemStack(Material.IRON_CHESTPLATE));

            player.sendMessage(ChatColor.GRAY + "~ " + ChatColor.AQUA + "Kit: " + kit);
        }
        else {
            sender.sendMessage("The console should not play. It would be so OP.");
        }
    }

    return true; }
}

plugin.yml：

name: EKits
author: Mucapapipa
main: me.mucapapipa.ekits.ekits
version: 1.0
description: The server's main plugin.

commands:
  pvp:
    usage: /<command>
    aliases: [kitpvp]
    description: Uses the kit PvP.

错误：

[19:19:01 ERROR]：启用EKits v1.0时出错（是否为最新版本？） java.lang.IllegalArgumentException：插件已初始化！在org.bukkit.plugin.java.PluginClassLoader.initialize(PluginClassLoader.java:98）〜[craftbukkit.jar：git-Bukkit-7019900] 在org.bukkit.plugin.java.JavaPlugin。（JavaPlugin.java:66）〜[craftbukkit.jar：git-Bukkit-7019900] at me.mucapapipa.ekits.NormalPlayer。（NormalPlayer.java:16）〜[？：？] 在me.mucapapipa.ekits.ekits.onEnable（ekits.java:16）〜[？：？] 在org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:321）〜[craftbukkit.jar：git-Bukkit-7019900] 在org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:327）[craftbukkit.jar：git-Bukkit-7019900] 在org.bukkit.plugin.SimplePluginManager.enablePlugin（SimplePluginManager.java:404）[craftbukkit.jar：git-Bukkit-7019900] 在org.bukkit.craftbukkit.v1_8_R1.CraftServer.loadPlugin(CraftServer.java:341）[craftbukkit.jar：git-Bukkit-7019900] 在org.bukkit.craftbukkit.v1_8_R1.CraftServer.enablePlugins（CraftServer.java:313）[craftbukkit.jar：git-Bukkit-7019900] at net.minecraft.server.v1_8_R1.MinecraftServer.q（MinecraftServer.java:394）[craftbukkit.jar：git-Bukkit-7019900] at net.minecraft.server.v1_8_R1.MinecraftServer.k（MinecraftServer.java:362）[craftbukkit.jar：git-Bukkit-7019900] at net.minecraft.server.v1_8_R1.MinecraftServer.a（MinecraftServer.java:317）[craftbukkit.jar：git-Bukkit-7019900] at net.minecraft.server.v1_8_R1.DedicatedServer.init（DedicatedServer.java:190）[craftbukkit.jar：git-Bukkit-7019900] at net.minecraft.server.v1_8_R1.MinecraftServer.run（MinecraftServer.java:484）[craftbukkit.jar：git-Bukkit-7019900] 在java.lang.Thread.run（未知来源）[？：1.8.0_101] 引起：java.lang.IllegalStateException：初始化初始化在org.bukkit.plugin.java.PluginClassLoader.initialize(PluginClassLoader.java:101）〜[craftbukkit.jar：git-Bukkit-7019900] 在org.bukkit.plugin.java.JavaPlugin。（JavaPlugin.java:66）〜[craftbukkit.jar：git-Bukkit-7019900] 在me.mucapapipa.ekits.ekits。（ekits.java:10）〜[？：？] at sun.reflect.NativeConstructorAccessorImpl.newInstance0（Native Method）〜[？：1.8.0_101] at sun.reflect.NativeConstructorAccessorImpl.newInstance（Unknown Source）〜[？：1.8.0_101] at sun.reflect.DelegatingConstructorAccessorImpl.newInstance（Unknown Source）〜[？：1.8.0_101] at java.lang.reflect.Constructor.newInstance（Unknown Source）〜[？：1.8.0_101] 在java.lang.Class.newInstance（未知来源）〜[？：1.8.0_101] 在org.bukkit.plugin.java.PluginClassLoader。（PluginClassLoader.java:52）〜[craftbukkit.jar：git-Bukkit-7019900] 在org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:129）〜[craftbukkit.jar：git-Bukkit-7019900] 在org.bukkit.plugin.SimplePluginManager.loadPlugin（SimplePluginManager.java:328）〜[craftbukkit.jar：git-Bukkit-7019900] 在org.bukkit.plugin.SimplePluginManager.loadPlugins（SimplePluginManager.java:251）〜[craftbukkit.jar：git-Bukkit-7019900] 在org.bukkit.craftbukkit.v1_8_R1.CraftServer.loadPlugins（CraftServer.java:288）〜[craftbukkit.jar：git-Bukkit-7019900] 在org.bukkit.craftbukkit.v1_8_R1.CraftServer。（CraftServer.java:250）〜[craftbukkit.jar：git-Bukkit-7019900] 在net.minecraft.server.v1_8_R1.PlayerList。（PlayerList.java：69）〜[craftbukkit.jar：git-Bukkit-7019900] 在net.minecraft.server.v1_8_R1.DedicatedPlayerList。（SourceFile：14）〜[craftbukkit.jar：git-Bukkit-7019900] at net.minecraft.server.v1_8_R1.DedicatedServer.init（DedicatedServer.java:133）〜[craftbukkit.jar：git-Bukkit-7019900] ......还有2个

Answer 1

public class NormalPlayer extends JavaPlugin implements CommandExecutor

为什么你的命令执行器会扩展主插件类？这就是导致double-init和删除超类的原因可能会修复代码。

在Bukkit中使用多个类来执行命令？

1 个答案: