尝试向多个不和谐服务器发送消息

Question

这是我的代码。当用户键入命令 !sendall 时，我正在尝试向多个服务器发送消息。例如，当用户键入 !sendall Hello 时，它将向多个不和谐服务器发送“Hello”。感谢您的帮助！

执行此操作时，我收到此错误

(node:14424) UnhandledPromiseRejectionWarning: ReferenceError: guild is not defined
    at Client.<anonymous> (C:\Users\16034\Desktop\Bot Monitors\bot.js:52:56)
    at Client.emit (events.js:310:20)
    at MessageCreateAction.handle (C:\Users\16034\Desktop\Bot Monitors\node_modules\discord.js\src\client\actions\MessageC

// Main
const Discord = require("discord.js");
const client = new Discord.Client();
const config = require("./config.json");

var guildList = ["707366229446492208", "704552256007307364"];

// Bootup
client.on("ready", () => {
  console.log(`Bot has started, with ${client.users.size} users, in ${client.channels.size} channels of ${client.guilds.size} guilds.`); 
  client.user.setActivity(`Serving ${client.guilds.size} servers`);
});

// Guild Logs
client.on("guildCreate", guild => {
  console.log(`New guild joined: ${guild.name} (id: ${guild.id}). This guild has ${guild.memberCount} members!`);
  client.user.setActivity(`Serving ${client.guilds.size} servers`);
});
client.on("guildDelete", guild => {
  console.log(`I have been removed from: ${guild.name} (id: ${guild.id})`);
  client.user.setActivity(`Serving ${client.guilds.size} servers`);
});

// Required
client.on("message", async message => {
  if(message.author.bot) return;
  if(message.content.indexOf(config.prefix) !== 0) return;
  const args = message.content.slice(config.prefix.length).trim().split(/ +/g);
  const command = args.shift().toLowerCase();

  // Sendall
  if(command === "sendall") 
        try {
            guildList.forEach(guild => guild.defaultChannel.send("messageToSend"));
        } catch (err) {
            console.log("Could not send message to " + guild.name);
        }
});
client.login(config.token);

Answer 1

您不能只使用 ID 向公会发送消息。您需要先使用该 ID 找到公会。

guildList.forEach(guildID => client.guilds.get(guildID).defaultChannel.send('hello'));

Answer 2

guildList 是一个字符串数组（ID），而不是公会本身。您需要先获取公会对象。

另外，您不能像这样使用try 和catch，因为可能抛出的东西（guild.defaultChannel.send("messageToSend")）在forEach 函数中，因此不会捕获错误。您收到的错误是因为您试图在 catch 块中引用 guild。 guild 只存在于forEach 函数中。

试试这个：

if(command === "sendall") 
  guildList
    .map(id => client.guilds.cache.get(id))
    .forEach(guild => guild.defaultChannel
      .send("messageToSend")
      .catch(err => console.log("Could not send message to " + guild.name))
    );
}