java - JDA。公会成员加入/离开事件

Question

我编写了以下方法，但它们都不起作用。有人知道为什么以及如何解决它吗？

PS:该机器人具有管理员权限。

public class GuildMemberJoin extends ListenerAdapter {
    public void onGuildMemberJoin(GuildMemberJoinEvent event) {
        EmbedBuilder join = new EmbedBuilder();

        join.setColor(Color.getHSBColor(227, 74, 64));
        join.setTitle("SERVER UPDATE");
        join.setDescription(event.getMember().getAsMention() + " has now joined The server!");
        event.getGuild().getDefaultChannel().sendMessage(join.build()).queue();
    }

public class GuildMemberLeave extends ListenerAdapter {
    public void onGuildMemberLeave(GuildMemberLeaveEvent event) {
        EmbedBuilder join = new EmbedBuilder();
        TextChannel spamChannel = event.getGuild().getTextChannelById("713429117546135572");

        join.setColor(Color.getHSBColor(227, 74, 64));
        join.setTitle("SERVER UPDATE");
        join.setDescription(event.getMember().getAsMention() + " has now left the server!");
        spamChannel.sendMessage(join.build()).queue();
    }

默认 channel 设置

Answer 1

引用JDA Wiki :

There are many reasons why your event listener might not be executed but here are the most common issues:

1. You are using the wrong login token?
   If the token is for another bot which doesn't have access to the desired guilds then the event listener code cannot run.
2. Your bot is not actually in the guild?
   Make sure your bot is online and has access to the resource you are trying to interact with.
3. You never registered your listener?
   Use jda.addEventListener(new MyListener()) on either the JDABuilder or JDA instance
4. You did not override the correct method?
   Use @Override and see if it fails. Your method has to use the correct name and parameter list defined in ListenerAdapter.
5. You don't actually extend EventListener or ListenerAdapter.
   Your class should either use extends ListenerAdapter or implements EventListener.
6. You are missing a required GatewayIntent for this event.
   Make sure that you enableIntents(...) on the JDABuilder to allow the events to be received.
7. The event has other requirements that might not be satisfied such as the cache not being enabled.
   Please check the requirements on the event documentation.

If none of the above apply to you then you might have an issue in your listener's code, at that point you should use a debugger.

澄清:

您可以通过在 JDABuilder 上执行 builder.enableIntents(GatewayIntent.GUILD_MEMBERS) 来启用 GUILD_MEMBERS 意图。

例如:

JDABuilder builder = JDABuilder.createDefault(token);
builder.enableIntents(GatewayIntent.GUILD_MEMBERS);
builder.addEventListeners(myListener);
JDA jda = builder.build();

另请参阅:Gateway Intents and Member Cache Policy