Python+Mysql实现登录注册完整代码示例

# 登录页面控件
lable1 = tkinter.Label(root, text="账号：", font=('Arial', 15), width=10)  # 创建账号标签
lable1.place(x=80, y=10)  # 设置账号标签的位置
text1 = tkinter.Text(root, width=10, height=1, bg="white", fg="black", font=("宋体", 18), bd='0')  # 创建账号输入文本框
text1.place(x=170, y=10)  # 设置账号输入文本框的位置

lable2 = tkinter.Label(root, text="密码：", font=('Arial', 15), width=10)  # 创建密码标签
lable2.place(x=80, y=80)  # 设置密码标签的位置
text2 = tkinter.Entry(root, show="*", width=10, bg="white", fg="black", font=("宋体", 18), bd='0')  # 创建密码输入文本框
text2.place(x=170, y=80)  # 设置密码输入文本框的位置

button0 = tkinter.Button(root, text="登录", command=open_login_window)  # 创建登录按钮，并将按钮与登录函数关联
button0.place(x=180, y=150)  # 设置登录按钮位置
button1 = tkinter.Button(root, text="退出", command=root.quit)  # 创建退出按钮，并设置点击事件为退出程序
button1.place(x=250, y=150)  # 设置退出按钮位置

# 注册按钮
register_button = tkinter.Button(root, text="注册", command=open_register_window)
register_button.place(x=110, y=150)

# 注册页面控件
register_window = tkinter.Toplevel(root)
register_window.title("注册")
register_window.geometry("400x250")
register_window.protocol("WM_DELETE_WINDOW", close_register_window)  # 隐藏窗口而不是关闭
register_window.withdraw()  # 隐藏窗口

register_lable1 = tkinter.Label(register_window, text="账号：", font=('Arial', 15), width=10)
register_lable1.place(x=80, y=10)
register_text1 = tkinter.Text(register_window, width=10, height=1, bg="white", fg="black", font=("宋体", 18), bd='0')
register_text1.place(x=170, y=10)

register_lable2 = tkinter.Label(register_window, text="密码：", font=('Arial', 15), width=10)
register_lable2.place(x=80, y=80)
register_text2 = tkinter.Entry(register_window, show="*", width=10, bg="white", fg="black", font=("宋体", 18), bd='0')
register_text2.place(x=170, y=80)

register_button = tkinter.Button(register_window, text="注册", command=register)
register_button.place(x=180, y=150)

def open_login_window():
    # 创建游标对象
    cursor = connection.cursor()

    sql = """SELECT username, password FROM admin"""  # sql查询语句，查找admin表中username和password两个值
    cursor.execute(sql)  # 执行查询语句

    # 返回数据库查询的所有信息
    results = cursor.fetchall()
    # print(results)
    # 关闭游标
    cursor.close()
    username = text1.get("1.0", tkinter.END).strip()  # 从文本框中获取输入的账户信息
    password = text2.get().strip()  # 从文本框中获取输入的密码信息

    login_success = False
    for temp in results:
        if username == temp[0] and password == temp[1]:
            login_success = True
            break

    if login_success:
        messagebox.showinfo('成功', '登录成功')
        root.quit()
    else:
        messagebox.showinfo('Error', '账号或密码错误，请重试')

def register():
    username = register_text1.get("1.0", tkinter.END).strip()
    password = register_text2.get().strip()
    if username and password:
        cursor = connection.cursor()
        sql = "INSERT INTO admin (username, password) VALUES (%s, %s)"
        cursor.execute(sql, (username, password))
        connection.commit()
        cursor.close()
        messagebox.showinfo('成功', '注册成功，请登录')
        register_window.withdraw()
        root.deiconify()
    else:
        messagebox.showinfo('Error', '账号或密码不能为空')

# 建立数据库连接
connection = pymysql.connect(
    host='localhost',  # 数据库主机名,一般为localhost
    port=3306,               # 数据库端口号，默认为3306
    user='root',             # 你的数据库用户名,一般为root
    passwd='database_password',         # 你的数据库密码
    db='database_name',               # 数据库名称
    charset='utf8'           # 字符编码
)

def open_register_window():
    register_window.deiconify()
    root.withdraw()


def close_register_window():
    register_window.withdraw()
    root.deiconify()