Python如何使用tkinter编写GUI程序
@(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）
代码如下，需要安装requests和lxml第三方库
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app.py.
import tkinter as tkfrom 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.png')
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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