Python如何使用tkinter编写GUI程序[python高级]

@(Python3中tkinter写的HTTP测试工具代码支持正则表达式和XPATH)

程序非常简单,暂时只支持GET方法,使用内置库tkinter编写GUI窗口,在Mac下运行效果图如下,windows运行需要更改控件宽度高度等控制参数才能很好的显示。

效果图(使用XPATH匹配房天下网站)

1562138451664485.jpg1562138459841062.jpg

代码如下,需要安装requests和lxml第三方库

相关推荐:《Python相关教程》

app.py.

import tkinter as tk

from tkinter import scrolledtext

from tkinter import messagebox

import re

import requests

from lxml import etree

class Application(tk.Frame):

    def __init__(self, master=None):

        super().__init__(master)

        self.master = master

        self.pack()

        self.create_widgets()

    def create_widgets(self):

        #bar

        self.canvas = tk.Canvas(self,width=980,height=65,bg='#ebf4ec')

        self.image_file = tk.PhotoImage(file='network.jpg')

        self.imag = self.canvas.create_image(50,0,anchor='n',image=self.image_file)

        self.canvas.create_text(480,35,text='HTTP测试工具',font=('Arial',35),)

        self.canvas.grid(row=0,columnspan=3)

        #method HTTP方法多选框

        self.var_method = tk.StringVar(self)

        self.var_method.set('GET')

        self.optionmenu = tk.OptionMenu(self,self.var_method,'GET','POST','PUT','PATCH','DELETE','HEAD','OPTIONS')

        .grid(row=1,column=0,padx=2,pady=2,ipadx=10,ipady=5)

        #url

        self.var_url = tk.StringVar(self)

        self.var_url.set('http://')

        self.url_entry = tk.Entry(self,font=('Arial',14),width=82,textvariable=self.var_url).grid(row=1,column=1,

        padx=1,pady=2,ipadx=10,ipady=5)

        #request button

        self.request_button = tk.Button(self, text='发送请求', fg='#436EEE', command=self.request).grid(row=1,

        column=2,padx=2,pady=2,ipadx=10,ipady=5)

        #request header

        self.header_label = tk.Label(self,text='请求头:').grid(row=3,column=0,padx=2,pady=2,ipadx=10,ipady=5)

        self.var_header = tk.StringVar(self)

        self.var_header.set('Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:64.0) Gecko/20100101 Firefox/64.0')

        self.header_entry = tk.Entry(self,font=('Arial',14),width=82,textvariable=self.var_header).grid(row=3,

        column=1,padx=2,pady=2,ipadx=10,ipady=5)

        #regular expression

        self.re_header = tk.Label(self,text='正则表达式:').grid(row=4,column=0,padx=2,pady=2,ipadx=10,ipady=5)

        self.var_re = tk.StringVar(self)

        self.re_entry = tk.Entry(self,font=('Arial',14),width=82,textvariable=self.var_re).grid(row=4,column=1,

        padx=2,pady=2,ipadx=10,ipady=5)

        self.re_button = tk.Button(self, text='匹配全部',command=self.re_request).grid(row=4,column=2,padx=2,

        pady=2,ipadx=10,ipady=5)

        #xpath

        self.xpath_label = tk.Label(self,text='Xpath表达式:').grid(row=5,column=0,padx=2,pady=2,ipadx=10,ipady=5)

        self.var_xpath = tk.StringVar(self)

        self.xpath_entry = tk.Entry(self,font=('Arial',14),width=82,textvariable=self.var_xpath).grid(row=5,

        column=1,padx=2,pady=2,ipadx=10,ipady=5)

        self.xpath_button = tk.Button(self, text='匹配全部',command=self.xpath_request).grid(row=5,column=2,padx=2,

        pady=2,ipadx=10,ipady=5)

        #information

        self.var_status = tk.StringVar()

        self.var_status.set('当前状态:未请求')

        self.information = tk.Label(self,textvariable=self.var_status,bg='#48D1CC',font=('Arial',14)).grid(row=6, 

        column=1, padx=2, pady=2, ipadx=10, ipady=5)

        #results

        self.textarea = tk.scrolledtext.ScrolledText(self,width=117,height=25,bg='black',fg='#00EE00',

        font=('Arial',14))

        self.textarea.grid(row=7,columnspan=3,pady=10)

    #xpath匹配

    def xpath_request(self):

        xpath = self.var_xpath.get()

        if xpath == '':

            messagebox.showinfo('警告', message='请输入XPATH表达式!')

        else:

            url = self.var_url.get()

            header = self.var_header.get()

            headers = {'User-Agent':header}

            data = requests.get(url=url,headers=headers).text

            results = etree.HTML(data).xpath(xpath)

            self.textarea.delete('1.0', 'end')

            for i in results:

                self.textarea.insert('end',i.text + '

')

    #正则表达式匹配

    def re_request(self):

        exp = self.var_re.get()

        if exp == '':

            messagebox.showinfo('警告',message='请输入正则表达式!')

        else:

            url = self.var_url.get()

            header = self.var_header.get()

            headers = {'User-Agent':header}

            data = requests.get(url=url,headers=headers).text

            results = re.compile(exp).findall(data)

            self.textarea.delete('1.0', 'end')

            self.textarea.insert('end',results)

    def request(self):

        method = self.var_method.get()

        if method == 'GET':

            self.get_request()

        elif method == 'POST':

            self.post_request()

    def post_request(self):

        pass

        #还没写

    #发送HTTP GET请求

    def get_request(self):

        self.textarea.delete('1.0','end')

        if self.var_header.get() == '':

            headers = {'User-Agent':''}

        else:

            headers = {'User-Agent':self.var_header.get()}

        url = self.var_url.get()

        data = requests.get(url=url,headers=headers)

        if (data.status_code == 200):

            self.var_status.set('当前状态:'+ 'GET ' + url + '    '+ str(data.status_code)+' OK')

        elif (data.status_code == 404):

            self.var_status.set('当前状态:' + str(data.status_code) + ' Not found')

        else:

            self.var_status.set('当前状态:' + str(data.status_code))

        content = data.text

        self.textarea.insert('end',content)

if __name__ == '__main__':

    root = tk.Tk()

    root.title('KK HTTP测试工具')

    root.geometry('980x700')

    app = Application(master=root)

    app.mainloop()

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