Question

我刚刚开始学习如何开发Minecraft服务器插件，但每当我尝试将我的插件加载到服务器上进行测试时，它就会抛出错误：找不到主类'me.light.bukkit.Main'

我的主要类代码：

package me.light.bukkit;

import org.bukkit.plugin.java.JavaPlugin;

public class Main extends JavaPlugin {

    @Override
    //when plugin is enabled
    public void onEnable() {
        new PlayerListener(this);
    }

    @Override
    //when plugin is disabled (ie saving stuff)
    public void onDisable() {

    }
}

我的PlayerListener类代码：

package me.light.bukkit;

import org.bukkit.ChatColor;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.player.PlayerEggThrowEvent;
import org.bukkit.plugin.Plugin;

public class PlayerListener implements Listener{

    public PlayerListener(Main plugin) {
        plugin.getServer().getPluginManager().registerEvents(this, (Plugin) plugin);
    }

    @EventHandler
    public void blank(PlayerEggThrowEvent event) {

        Player player = event.getPlayer();

        player.sendMessage(ChatColor.RED + "DO NOT THROW EGGS");

        player.kickPlayer("You were throwing eggs!");

    }
}

最后我的plugin.yml

name: Illumination
main: me.light.bukkit.Main
version: 1.0
author: kb
description: First Plugin
commands:

此处还有服务器给我的错误

Java HotSpot(TM) 64-Bit Server VM warning: ignoring option     MaxPermSize=128M; sup
port was removed in 8.0
Loading libraries, please wait...
[19:41:24 INFO]: Starting minecraft server version 1.8
[19:41:24 INFO]: Loading properties
[19:41:25 INFO]: Default game type: SURVIVAL
[19:41:25 INFO]: Generating keypair
[19:41:25 INFO]: Starting Minecraft server on *:25565
[19:41:25 INFO]: This server is running CraftBukkit version git-Bukkit-    ee6d0fa (
MC: 1.8) (Implementing API version 1.8-R0.1-SNAPSHOT)
[19:41:25 ERROR]: Could not load 'plugins\illumination.jar' in folder     'plugins'
org.bukkit.plugin.InvalidPluginException: Cannot find main class     `me.light.bukki
t.Main'
        at org.bukkit.plugin.java.PluginClassLoader.<init>    (PluginClassLoader.jav
a:42) ~[craftbukkit.jar:git-Bukkit-ee6d0fa]
        at     org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.j
ava:129) ~[craftbukkit.jar:git-Bukkit-ee6d0fa]
        at     org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.
java:328) ~[craftbukkit.jar:git-Bukkit-ee6d0fa]
        at     org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager
.java:251) [craftbukkit.jar:git-Bukkit-ee6d0fa]
        at     org.bukkit.craftbukkit.v1_8_R1.CraftServer.loadPlugins(CraftServer.ja
va:288) [craftbukkit.jar:git-Bukkit-ee6d0fa]
        at org.bukkit.craftbukkit.v1_8_R1.CraftServer.<init>    (CraftServer.java:25
0) [craftbukkit.jar:git-Bukkit-ee6d0fa]
        at net.minecraft.server.v1_8_R1.PlayerList.<init>    (PlayerList.java:69) [c
raftbukkit.jar:git-Bukkit-ee6d0fa]
        at net.minecraft.server.v1_8_R1.DedicatedPlayerList.<init>    (SourceFile:14
) [craftbukkit.jar:git-Bukkit-ee6d0fa]
        at     net.minecraft.server.v1_8_R1.DedicatedServer.init(DedicatedServer.jav
a:133) [craftbukkit.jar:git-Bukkit-ee6d0fa]
        at     net.minecraft.server.v1_8_R1.MinecraftServer.run(MinecraftServer.java
:484) [craftbukkit.jar:git-Bukkit-ee6d0fa]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_25]
Caused by: java.lang.ClassNotFoundException: me.light.bukkit.Main
        at java.net.URLClassLoader$1.run(Unknown Source) ~[?:1.8.0_25]
        at java.net.URLClassLoader$1.run(Unknown Source) ~[?:1.8.0_25]
        at java.security.AccessController.doPrivileged(Native Method)     ~[?:1.8.0_
25]
        at java.net.URLClassLoader.findClass(Unknown Source)     ~[?:1.8.0_25]
        at     org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.
java:77) ~[craftbukkit.jar:git-Bukkit-ee6d0fa]
        at     org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.
java:62) ~[craftbukkit.jar:git-Bukkit-ee6d0fa]
        at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_25]
        at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_25]
        at java.lang.Class.forName0(Native Method) ~[?:1.8.0_25]
        at java.lang.Class.forName(Unknown Source) ~[?:1.8.0_25]
        at org.bukkit.plugin.java.PluginClassLoader.<init>    (PluginClassLoader.jav
a:40) ~[craftbukkit.jar:git-Bukkit-ee6d0fa]
        ... 10 more
[19:41:25 INFO]: Preparing level "world"
[19:41:25 INFO]: Preparing start region for level 0 (Seed:     -6785130429683314732)

[19:41:26 INFO]: Preparing start region for level 1 (Seed:     -6785130429683314732)

[19:41:26 INFO]: Preparing start region for level 2 (Seed:     -6785130429683314732)

[19:41:26 INFO]: Server permissions file permissions.yml is empty,     ignoring it
[19:41:26 INFO]: Done (1.351s)! For help, type "help" or "?"

我试图多次修复但无济于事。我尝试在plugin.yml中重命名一些东西，在我的插件中移动我的plugin.yml，并更改我的类的名称，但没有任何工作。任何帮助将不胜感激。

Answer 1

首先......这是一个奇怪的插件。其次，我不确定这样做是否合适（我真的不是这样，所以不要责怪）：

public PlayerListener(Main plugin) {
    plugin.getServer().getPluginManager().registerEvents(this, (Plugin) plugin);
}

通常你应该这样做：

public void onEnable() {
    bukkit.getServer().getPluginManager().registerEvents(new PlayerListener(), this);
}

并删除：

new PlayerListener(this);

Answer 2

注意：您应该重构您的插件并将 Main 重命名为其他内容。（例如插件的名称）

package me.light.bukkit;

import org.bukkit.plugin.java.JavaPlugin;

public class Main extends JavaPlugin {

    private PlayerListener playerListener;

    @Override
    //when plugin is enabled
    public void onEnable() {
        playerListener = new PlayerListener(this);
        getServer().getPluginManager().registerEvents(playerListener, this);
    }

    @Override
    //when plugin is disabled (ie saving stuff)
    public void onDisable() {}
}

<强>监听

package me.light.bukkit;

import org.bukkit.ChatColor;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.player.PlayerEggThrowEvent;
import org.bukkit.plugin.Plugin;

public class PlayerListener implements Listener{
    private Main plugin;

    public PlayerListener(Main plugin) {
        this.plugin = plugin;
    }

    @EventHandler
    public void blank(PlayerEggThrowEvent event) {
        Player player = event.getPlayer();
        player.sendMessage(ChatColor.RED + "DO NOT THROW EGGS");
        player.kickPlayer("You were throwing eggs!");
    }
}

为什么我的Minecraft插件会给我错误＆＃34;找不到主要课程＆＃34;？

2 个答案: