我正在编写一个要求用户名和密码的登录屏幕。一旦我让这个屏幕正常工作,我计划将它添加到我正在处理的更大程序的开头。我目前遇到的问题是我无法验证特定用户的密码。现在,程序将检查用户名是否已存在,如果存在,则将检查密码是否存在。问题是有人可以输入另一个用户名和自己的密码,然后登录到其他人的帐户。安全性对我的程序来说不是什么大问题(我只是在制作一个多邻国类型的语言应用程序),但这是一个非常明显的问题,我想弄清楚如何解决。from tkinter import *import jsonclass LoginFrame(Frame): def __init__(self, master): super().__init__(master) master.title("Login") self.label_username = Label(self, text="Username") self.label_password = Label(self, text="Password") self.entry_username = Entry(self) self.entry_username.focus() #This sets the focus to the username entry box self.entry_password = Entry(self, show="*") self.label_username.grid(row=0, column=0) self.label_password.grid(row=1, column=0) self.entry_username.grid(row=0, column=1) self.entry_password.grid(row=1, column=1) self.login_button = Button(self, text="Login", command=self.Login) self.login_button.grid(columnspan=2) self.grid() def Login(self): current_info = open ("C:\\LearningArabic\\LiblibArriby\\Usernames\\usernames.json").read() username = self.entry_username.get() password = self.entry_password.get() if username in current_info: print("Test") if password in current_info: print("Now we're talking") else: print("Well, you're trying") else: #This section appends the new username and password combo to the json file usr = {username: password} with open("C:\\LearningArabic\\LiblibArriby\\Usernames\\usernames.json") as a: data = json.load(a) data.update(usr) with open("C:\\LearningArabic\\LiblibArriby\\Usernames\\usernames.json", "w") as a: json.dump(data, a)root = Tk()lf = LoginFrame(root)root.mainloop()任何帮助将不胜感激,如果对代码有其他评论,请不要退缩。我想学习——不仅仅是得到答案!
1 回答

三国纷争
TA贡献1804条经验 获得超7个赞
保持您当前的文件格式,我只会做类似的事情:
PATH_USERNAMES = "C:/LearningArabic/LiblibArriby/Usernames/usernames.json"
with open(PATH_USERNAMES) as fd:
current_info = json.load(fd)
username = self.entry_username.get()
password = self.entry_password.get()
if username in current_info:
saved_password = current_info.get(username, '')
if password == saved_password:
print("Password OK")
但强烈建议您保存散列的密码并适当更改验证......
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