Discord机器人开发

第一章 Discord账号注册

温馨提示：在阅读本文章内容之前，请确保您能正常访问外网。

官方网址： https://discord.com/

注册页面： https://discord.com/register

第二章 Discord创建服务器

第三章 Discord创建机器人

3.1、创建应用

开发者平台： https://discord.com/developers/applications

3.2、创建机器人

3.3、配置机器人

3.4、添加机器人

第四章 Discord机器人开发

温馨提示：在进行开发前，请确保您的开发环境是：jdk1.8、maven3.6.3、idea2021.1

4.1、推荐资料

• JDA推荐视频：点击打开
• JDA开发文档：点击打开
• JDA源码地址：点击打开

4.2、创建工程

4.3、添加依赖

<dependencies>
    <dependency>
        <groupId>net.dv8tion</groupId>
        <artifactId>JDA</artifactId>
        <version>5.0.0-alpha.12</version>
    </dependency>
</dependencies>

4.4、获取Token

4.5、编写主类

package cn.caochenlei;

import cn.caochenlei.event.MessageEvent;
import net.dv8tion.jda.api.JDA;
import net.dv8tion.jda.api.JDABuilder;

public class JavaBotApp {
    
    private static final String TOKEN = "******替换成你自己的******";

    public static void main(String[] args) throws Exception {
    
        JDA jda = JDABuilder.createDefault(TOKEN).build().awaitReady();
        jda.addEventListener(new MessageEvent());
    }
}

第五章 Discord机器人初级

5.1、和机器人对话

JavaBotApp

package cn.caochenlei;

import cn.caochenlei.event.MessageEvent;
import net.dv8tion.jda.api.JDA;
import net.dv8tion.jda.api.JDABuilder;

public class JavaBotApp {
    
    private static final String TOKEN = "******替换成你自己的******";

    public static void main(String[] args) throws Exception {
    
        JDA jda = JDABuilder.createDefault(TOKEN).build().awaitReady();
        jda.addEventListener(new MessageEvent());
    }
}

MessageEvent

package cn.caochenlei.event;

import net.dv8tion.jda.api.OnlineStatus;
import net.dv8tion.jda.api.Permission;
import net.dv8tion.jda.api.entities.*;
import net.dv8tion.jda.api.events.message.MessageReceivedEvent;
import net.dv8tion.jda.api.hooks.ListenerAdapter;
import org.jetbrains.annotations.NotNull;

import java.util.EnumSet;
import java.util.List;

public class MessageEvent extends ListenerAdapter {
    
    @Override
    public void onMessageReceived(@NotNull MessageReceivedEvent event) {
    
        //如果是机器人发消息触发这个事件则忽略
        //如果不加，则这个事件会变成死循环事件
        if (event.getAuthor().isBot()) {
    
            return;
        }

        Message message = event.getMessage();

        //获取服务器（公会）信息
        Guild guild = message.getGuild();
        String guildId = guild.getId();
        String guildName = guild.getName();
        System.out.println("guildId = " + guildId);//输出服务器（公会）id
        System.out.println("guildName = " + guildName);//输出服务器（公会）名称

        //获取频道信息
        MessageChannel channel = message.getChannel();
        String channelId = channel.getId();
        String channelName = channel.getName();
        ChannelType channelType = channel.getType();
        System.out.println("channelId = " + channelId);//输出频道id
        System.out.println("channelName = " + channelName);//输出频道名称
        System.out.println("channelType = " + channelType);//输出频道类型

        //获取发消息人
        Member member = message.getMember();
        String memberId = member.getId();
        String memberNickname = member.getNickname();
        String memberEffectiveName = member.getEffectiveName();
        List<Role> memberRoles = member.getRoles();
        EnumSet<Permission> memberPermissions = member.getPermissions();
        OnlineStatus memberOnlineStatus = member.getOnlineStatus();
        System.out.println("memberId = " + memberId);//输出发送消息人的id
        System.out.println("memberNickname = " + memberNickname);//输出发送消息人的昵称
        System.out.println("memberEffectiveName = " + memberEffectiveName);//输出发送消息人的有效名称
        System.out.println("memberRoles = " + memberRoles);//输出发送消息人的角色列表
        System.out.println("memberPermissions = " + memberPermissions);//输出发送消息人的权限列表
        System.out.println("memberOnlineStatus = " + memberOnlineStatus);//输出发送消息人的在线状态

        //获取消息信息
        String messageId = message.getId();
        String messageContentRaw = message.getContentRaw();
        MessageType messageType = message.getType();
        System.out.println("messageId = " + messageId);//输出消息id
        System.out.println("messageContentRaw = " + messageContentRaw);//输出消息内容
        System.out.println("messageType = " + messageType);//输出消息类型

        //回应用户消息
        channel.sendMessage("bot already received").queue();
    }
}

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