Discord money bot 将用户 ID 保存在 json 文件中。当 Not 重新启动时，它会为每个人创建一个新的（但相同的）ID

Question

当这段代码运行时，它可以从 discord 获取用户 ID 并将他们有 100 钱存入 json，但是一旦您重新启动机器人，您就必须再次注册并且它会写入相同的用户 ID json 文件认为它是新用户，但实际上不是。

from discord.ext import commands
import discord
import json

bot = commands.Bot('!')

amounts = {}

@bot.event
async def on_ready():
    global amounts
    try:
        with open('amounts.json') as f:
            amounts = json.load(f)
    except FileNotFoundError:
        print("Could not load amounts.json")
        amounts = {}

@bot.command(pass_context=True)
async def balance(ctx):
    id = ctx.message.author.id
    if id in amounts:
        await ctx.send("You have {} in the bank".format(amounts[id]))
    else:
        await ctx.send("You do not have an account")

@bot.command(pass_context=True)
async def register(ctx):
    id = ctx.message.author.id
    if id not in amounts:
        amounts[id] = 100
        await ctx.send("You are now registered")
        _save()
    else:
        await ctx.send("You already have an account")

@bot.command(pass_context=True)
async def transfer(ctx, amount: int, other: discord.Member):
    primary_id = ctx.message.author.id
    other_id = other.id
    if primary_id not in amounts:
        await ctx.send("You do not have an account")
    elif other_id not in amounts:
        await ctx.send("The other party does not have an account")
    elif amounts[primary_id] < amount:
        await ctx.send("You cannot afford this transaction")
    else:
        amounts[primary_id] -= amount
        amounts[other_id] += amount
        await ctx.send("Transaction complete")
    _save()

def _save():
    with open('amounts.json', 'w+') as f:
        json.dump(amounts, f)

@bot.command()
async def save():
    _save()

bot.run("Token")

JSON 机器人关闭并重新启动并注册两次（假用户 ID）后：

{"56789045678956789": 100, "56789045678956789": 100}

需要它能够识别用户 ID，即使在 bot 关闭并重新打开后也是如此。

Answer 1

您只需加载您在程序启动时创建的 .json 文件。而不是 amounts = {} 试试这个：

import os

if os.path.exists('amounts.json'):
    with open('amounts.json', 'r') as file:
        amounts = json.load(file)
else:
    amounts = {} # default to not loading if file not found

更新

我相信在阅读了您的评论并检查了您的代码后，问题出在您的 register() 代码中。

你有：

if id not in amounts:

但应该是：

if id not in amounts.keys():

Answer 2

这是因为 JSON 对象总是有 "keys" 的字符串。所以 json.dump 将整数键转换为字符串。您可以通过在使用之前将用户 ID 转换为字符串来实现同样的效果。

from discord.ext import commands
import discord
import json

bot = commands.Bot('!')

amounts = {}

@bot.event
async def on_ready():
    global amounts
    try:
        with open('amounts.json') as f:
            amounts = json.load(f)
    except FileNotFoundError:
        print("Could not load amounts.json")
        amounts = {}

@bot.command(pass_context=True)
async def balance(ctx):
    id = str(ctx.message.author.id)
    if id in amounts:
        await ctx.send("You have {} in the bank".format(amounts[id]))
    else:
        await ctx.send("You do not have an account")

@bot.command(pass_context=True)
async def register(ctx):
    id = str(ctx.message.author.id)
    if id not in amounts:
        amounts[id] = 100
        await ctx.send("You are now registered")
        _save()
    else:
        await ctx.send("You already have an account")

@bot.command(pass_context=True)
async def transfer(ctx, amount: int, other: discord.Member):
    primary_id = str(ctx.message.author.id)
    other_id = str(other.id)
    if primary_id not in amounts:
        await ctx.send("You do not have an account")
    elif other_id not in amounts:
        await ctx.send("The other party does not have an account")
    elif amounts[primary_id] < amount:
        await ctx.send("You cannot afford this transaction")
    else:
        amounts[primary_id] -= amount
        amounts[other_id] += amount
        await ctx.send("Transaction complete")
    _save()

def _save():
    with open('amounts.json', 'w+') as f:
        json.dump(amounts, f)

@bot.command()
async def save():
    _save()

bot.run("Token")

Answer 3

我发现了问题并亲自测试了它，所以它不是 .keys() 或 os 的东西，而是在 _save() 函数中。我首先用 _save 函数做了一个测试，没有它，而不是使用调用函数，当我手动执行它时它起作用了。像这样

(P.S 我是在一个 cog 中做的，唯一的区别是名称 @commands.command，它是 @bot.command 并且您需要添加“self”)

@commands.command(pass_context=True)
async def register(self, ctx):
    id = str(ctx.message.author.id)
    with open("smth.json") as json_file:
        amounts = json.load(json_file)
    if id not in amounts:
        amounts[id] = 0
        await ctx.send("You are now registered")
    else:
        await ctx.send("You already have an account!")
    with open("smth.json", "w") as outfile:
        json.dump(amounts, outfile)

同样非常重要的注意事项，请确保当您创建一个 json 文件时，它的名称以“.json”结尾并且其中的所有内容都是

{

}

Discord money bot 将用户 ID 保存在 json 文件中。当 Not 重新启动时，它会为每个人创建一个新的（但相同的）ID

Discord money bot keeping user ID's in json file. When Bot restarts it creats a new (but same) ID for everyone

python

json

discord

discord.py

discord.py-rewrite

更新