这个错误提示表明你在尝试通过Discord API发送一条空消息,而Discord API不允许发送空消息。为了解决这个问题,你需要确保在发送消息之前检查消息内容是否为空。
以下是一些基础概念和相关解决方案:
以下是一个示例代码,展示了如何从MongoDB获取数据并发送消息到Discord,同时确保消息内容不为空:
import discord
from pymongo import MongoClient
# 连接到MongoDB
client = MongoClient('mongodb://localhost:27017/')
db = client['your_database']
collection = db['your_collection']
# 创建Discord客户端
intents = discord.Intents.default()
intents.messages = True
bot = discord.Client(intents=intents)
@bot.event
async def on_ready():
print(f'Bot is ready. Connected to {len(bot.guilds)} guilds.')
@bot.event
async def send_message_to_discord(channel_id):
channel = bot.get_channel(channel_id)
if not channel:
print(f"Channel with ID {channel_id} not found.")
return
# 从MongoDB获取数据
message_data = collection.find_one({"some_key": "some_value"})
if not message_data:
print("No data found in MongoDB.")
return
message_content = message_data.get('message_content', '')
# 检查消息内容是否为空
if not message_content:
print("Message content is empty. Cannot send empty message.")
return
try:
await channel.send(message_content)
print(f"Message sent successfully: {message_content}")
except discord.Forbidden:
print("Bot does not have permission to send messages in this channel.")
except discord.HTTPException as e:
print(f"Failed to send message: {e}")
# 替换为你的Discord Bot Token
bot.run('your_discord_bot_token')
DiscordAPIError:无法发送空消息
错误。通过上述代码和解释,你应该能够理解为什么会出现这个错误,并且知道如何避免和解决这个问题。
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