Discord机器人启动正常但+hi指令无响应，如何解决？

问题情况 #

• 机器人启动时可正常发送上线通知，但输入+hi指令后无任何响应
• 多次重启机器人无效，但相同代码在另一机器人账号上能正常运行

相关截图 #

机器人代码 #

// - Discord Requires
const Discord = require('discord.js');
const client = new Discord.Client();
const prefix = '+';
// - Imports
const date = require('date-and-time');
const fs = require('fs');
const express = require("express")();
// - Embed
const { MessageEmbed } = require('discord.js');
// - Logo
const logo = './images/logo.png'
// - On Start
client.once('ready', () =>{
  //- Status and Console log Message
  client.user.setPresence({activity: {name:"Counting-Days", type:'WATCHING'}, status:'online'})
  .then(console.log)
  .catch(console.error);
  setTimeout(function(){
    console.log("🍉I'm ready, from now on I'm gonna count Christmas Days!:)🍉");
  }, 2000);
  // - Current Date and Time
  const now_date = new Date();
  date.format(now_date, 'YYYY/MM/DD HH:mm:ss');
  date.format(now_date, 'ddd, MMM DD YYYY');
  date.format(now_date, 'hh:mm A [GMT]Z');
  date.format(now_date, 'hh:mm A [GMT]Z', true);
  // - Makes the pattern for time
  const time_pattern = date.compile('hh:mm A');
  const time = date.format(now_date, time_pattern);
  const date_pattern = date.compile('ddd, MMM DD YYYY')
  const date_a = date.format(now_date, date_pattern);
  // - Channel Message => Ready
  client.channels.cache.get('935621866926768159').send(`**🎄Christmas Countdown Bot🎄** is awake |Date: **${date_a}**, Time: **${time}**| and waiting to reply to |${prefix}| commands!✅`)
});

// - Calculates the Days until Christmas (25/12/2022)
const newYears = "25 Dec 2022";

const newYearsDate = new Date(newYears);
const currentDate = new Date();

const totalSeconds = (newYearsDate - currentDate) / 1000;
const days = Math.floor(totalSeconds / 3600 / 24);
const hours = Math.floor(totalSeconds / 3600) % 24;
const mins = Math.floor(totalSeconds / 60) % 60;
const seconds = Math.floor(totalSeconds) % 60;

client.on("message", function (message){
  if (message.content === `${prefix}hi`){
    message.channel.send(`Hey, ${days}`);
  }
})
// -Token
client.login('TOKEN')

解决方案 #

1. 修复事件监听兼容性问题 #

Discord.js v13及以上版本已废弃message事件，改用messageCreate事件，这是指令无响应的核心原因之一。修改事件监听代码：

// 替换原有的message事件
client.on("messageCreate", function (message){
  if (message.content === `${prefix}hi`){
    message.channel.send(`Hey, ${days}`);
  }
})

2. 检查机器人权限配置 #

• 确认当前机器人账号在目标服务器拥有发送消息、读取消息历史权限，尤其是指令所在频道
• 对比能正常运行的机器人账号权限，排查权限差异

3. 优化指令匹配逻辑 #

原代码使用严格相等匹配，若消息前后有空格会触发失败，可改为：

client.on("messageCreate", function (message){
  // 忽略机器人自身消息
  if (message.author.bot) return;
  // 处理带空格的情况
  if (message.content.trim() === `${prefix}hi`){
    message.channel.send(`Hey, ${days}`);
  }
})

4. 修正倒计时实时计算逻辑 #

原代码中days仅在启动时计算一次，后续不会更新，需将计算逻辑移入指令处理函数：

client.on("messageCreate", function (message){
  if (message.content.trim() === `${prefix}hi`){
    const currentDate = new Date();
    const totalSeconds = (newYearsDate - currentDate) / 1000;
    const days = Math.floor(totalSeconds / 3600 / 24);
    message.channel.send(`Hey, ${days}`);
  }
})

5. 排查账号状态 #

确认机器人账号未被服务器静音、封禁，或在目标频道无发送消息限制

内容的提问来源于stack exchange，提问作者Nick S