Discord java bot按名称验证用户

Question

在我目前的Discord（java）bot中尝试将命令应用于用户名。我怎样才能确保这是一个真正的现有用户？

在伪代码中：

if User "A" exists {
User "A" types something at all
send message "hello"+ user "A"
}
else 
{
this is no valid user;
}

我无法弄清楚如何编写＆＃39;检查是否存在代码＆＃39;。

Answer 1

这来自JDA-Utilities，它是构建不和谐机器人时非常有用的工具。

import com.jagrosh.jdautilities.command.Command;
import com.jagrosh.jdautilities.command.CommandEvent;

public class Example extends Command {
    public Example() {
        this.name = "'isBot";
        this.help = "Tells you if the user is a bot!";
    }
    @Override
    protected void execute(CommandEvent e) {
        if (e.getAuthor().isBot()) {
            e.reply("Hey you're not a person!!");
        } else {
            e.reply("Hey " + e.getAuthor().getName() + ", you're not a bot!");
        }
    }
}