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search_sql.py
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#!/usr/bin/python3
# -*- coding: utf-8 -*-
import pymysql
import tkinter as tk
import tkinter.messagebox
from tkinter import END, LEFT, RIGHT, TOP, StringVar, Text, ttk
from lib.config import settings
class Search(ttk.Frame):
def __init__(self, win):
ttk.Frame.__init__(self, win)
win.title("车牌数据库查询")
self.host = StringVar()
self.port = StringVar()
self.user = StringVar()
self.passwd = StringVar()
self.db = StringVar()
self.table = StringVar()
self.keyword = StringVar()
frame_result = ttk.Frame(self)
frame_host = ttk.Frame(self)
frame_user = ttk.Frame(self)
frame_input = ttk.Frame(self)
frame_passwd = ttk.Frame(self)
frame_db = ttk.Frame(self)
frame_table = ttk.Frame(self)
frame_clean = ttk.Frame(self)
frame_keyword = ttk.Frame(self)
frame_result.pack(side=TOP, fill=tk.Y, expand=1)
frame_host.pack(side=TOP, fill=tk.Y, expand=1)
frame_input.pack(side=TOP, fill=tk.Y, expand=1)
frame_user.pack(side=TOP, fill=tk.Y, expand=1)
frame_passwd.pack(side=TOP, fill=tk.Y, expand=1)
frame_db.pack(side=TOP, fill=tk.Y, expand=1)
frame_table.pack(side=TOP, fill=tk.Y, expand=1)
frame_keyword.pack(side=TOP, fill=tk.Y, expand=1)
frame_clean.pack(side=TOP, fill=tk.Y, expand=1)
self.result = Text(frame_result, width=100)
self.result.pack()
self.result.insert('1.0', "此处显示查询结果\n")
self.host_label = ttk.Label(frame_host, text='数据库地址：', width=10)
self.host_label.pack(side=LEFT)
self.host_input = ttk.Entry(
frame_host, textvariable=self.host, width=30)
self.host_input.pack(side=RIGHT)
self.port_lable = ttk.Label(frame_input, text='端口号', width=10)
self.port_lable.pack(side=LEFT)
self.port_input = ttk.Entry(
frame_input, textvariable=self.port, width=30)
self.port_input.pack(side=RIGHT)
self.user_label = ttk.Label(frame_user, text='用户名：', width=10)
self.user_label.pack(side=LEFT)
self.user_input = ttk.Entry(
frame_user, textvariable=self.user, width=30)
self.user_input.pack(side=RIGHT)
self.passwd_label = ttk.Label(frame_passwd, text='密码: ', width=10)
self.passwd_label.pack(side=LEFT)
self.passwd_input = ttk.Entry(
frame_passwd, textvariable=self.passwd, width=30)
self.passwd_input.pack(side=RIGHT)
self.db_label = ttk.Label(frame_db, text='数据库名称: ', width=10)
self.db_label.pack(side=LEFT)
self.db_input = ttk.Entry(frame_db, textvariable=self.db, width=30)
self.db_input.pack(side=RIGHT)
self.table_label = ttk.Label(frame_table, text='数据表名称: ', width=10)
self.table_label.pack(side=LEFT)
self.table_input = ttk.Entry(
frame_table, textvariable=self.table, width=30)
self.table_input.pack(side=RIGHT)
self.keyword_input = ttk.Entry(
frame_keyword, textvariable=self.keyword, width=30)
self.keyword_input.pack(side=LEFT)
self.keyword_button = ttk.Button(
frame_keyword, text='关键字查询', width=10, command=self.keyword_search)
self.keyword_button.pack(side=RIGHT)
self.clean_button = ttk.Button(
frame_clean, text="清除输入信息", width=15, command=self.clean)
self.clean_button.pack(side=LEFT)
self.search_button = ttk.Button(
frame_clean, text="开始查询", width=15, command=self.search)
self.search_button.pack(side=LEFT)
self.pack(fill=tk.BOTH, expand=tk.YES, padx="10", pady="10")
self.center_window()
def get_db(self):
try:
# 打开数据库连接
return pymysql.connect(
host=self.host_input.get() or settings.host,
port=int(self.port_input.get() or settings.port),
user=self.user_input.get() or settings.dbuser,
passwd=self.passwd_input.get() or settings.passwd,
database=self.db_input.get() or settings.database
)
except Exception as e:
print("数据库连接失败", e)
return
def search(self):
self.result.delete(1.0, END)
table = self.table_input.get() or "CARINFO"
# 打开数据库连接
db = self.get_db()
if not db:
self.result.insert('1.0', "数据库连接失败")
return
cursor = db.cursor()
# SQL 查询语句
sql = "SELECT * FROM %s" % (table)
try:
# 执行SQL语句
cursor.execute(sql)
# 获取所有记录列表
results = cursor.fetchall()
for row in results:
row2 = str(row) + "\n"
self.result.insert('1.0', row2)
self.result.insert('1.0', "-----------------------------"
"------------------------------"
"------------------------------"
"--------\n")
# print(row)
# print(results)
except Exception as e:
print(e)
self.result.insert('1.0', "查询失败" + e)
db.close()
def keyword_search(self):
self.result.delete(1.0, END)
table = self.table_input.get() or "CARINFO"
keyword = self.keyword_input.get()
if (keyword == ""):
tkinter.messagebox.showinfo(title='车牌数据库系统', message='关键字不能为空')
return
keyword = "%" + keyword + "%"
# 打开数据库连接
db = self.get_db()
if not db:
self.result.insert('1.0', "数据库连接失败")
return
cursor = db.cursor()
# SQL 查询语句
sql = "SELECT * FROM %s WHERE TEXT1 like ('%s') or TEXT2 like ('%s') " \
"or API like ('%s') or COLOR1 like ('%s') or COLOR2 like ('%s')" \
% (table, keyword, keyword, keyword, keyword, keyword)
# print(sql)
try:
# 执行SQL语句
cursor.execute(sql)
# 获取所有记录列表
results = cursor.fetchall()
for row in results:
row2 = str(row) + "\n"
self.result.insert('1.0', row2)
self.result.insert('1.0', "-----------------------------"
"------------------------------"
"------------------------------"
"--------\n")
# print(row)
# print(results)
except Exception as e:
print(e)
self.result.insert('1.0', "查询失败" + e)
# 关闭数据库连接
db.close()
def clean(self):
self.host.set("")
self.user.set("")
self.passwd.set("")
self.db.set("")
self.table.set("")
self.keyword.set("")
self.result.delete(1.0, END)
def center_window(self):
screenwidth = search.winfo_screenwidth()
screenheight = search.winfo_screenheight()
search.update()
width = search.winfo_width()
height = search.winfo_height()
size = '+%d+%d' % ((screenwidth - width)/2, (screenheight - height)/2)
search.geometry(size)
def close_window():
print("search destroy")
search.destroy()
if __name__ == '__main__':
search = tk.Tk()
search_window = Search(search)
# close,退出输出destroy
search.protocol('WM_DELETE_WINDOW', close_window)
# 进入消息循环
search.mainloop()